chemistry letters · chemistry letters vol.33, no.10 (2004) c-149 copyright 2004 the chemical...
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Chemistry Lettershttp://www.csj.jp/journals/chem-lett/
Vol.33 No.10 CMLTAGOctober, 2004 ISSN 0366-7022
Copyright 2004 The Chemical Society of Japan
1226 Ligand Influences in Heme–Copper O2-Chemistry as Synthetic Models for Cyto-chrome c Oxidase
O
CuII
O O
CuII
O
FeIII FeIII
µ−η2:η2µ−1,2
O
CuII
O
FeIII
µ−η2:η1
Kenneth D. Karlin and Eunsuk Kim
Recent advances in synthetic modeling of the cytochrome c oxidase heme–copper active site chemistry includes dioxy-gen reactivity studies which lead discrete heme–peroxo–copper assemblies. The coordination and spectroscopic properties(e.g., resonance Raman O–O stretching vibration) are strongly influenced by the copper ligand environment (e.g., ligand den-ticity).
Highlight Review
Letter
1232 Morphological Development and Etching ofGold Thin Film under UV-exposure inChlorine-based Liquids
Liquid with chlorine
Gold
(formation of gold chloride)
hν(UV)
desorption(etch)
reduction to gold Ilsin An and Deokkyeong Seong
C-148 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1234 Determination of the Field Strengths ofWeak Neutral Ligands Having Oxygen asCoordination Atom
DMSO
DMF MeOH Et2NNO THF
80 60 40 20 0 -20 -40
80 60 40 20 0 -20 -40
4-MePyNO4-ClPyNO
S = 5/2 S = 3/2PyNO
Fe(TPP)L2+
Fe(TiPrP)L2+
δ(ppm)
δ(ppm)
3,5-Me2PyNO
Weakness of oxygen-containingneutral ligands was ranked on thebasis of the pyrrole-H chemicalshifts of the planar [Fe(TPP)L2]+
and highly ruffled [Fe(TiPrP)L2]+
complexes.
Akito Hoshino and Mikio Nakamura
1236 Self-organized Wire-like Aggregates ofPalladium Nanoparticles with Poly(amido-amine)dendrimer
N N
NH
NH
HN
HN
O
O
O
O
N
N
NHHN
O
O
H2N
NH2
NH
NH
O
ONH2
H2N
N
N
HN
HNO
O
HNONH
O
NH2
NH2
H2N
H2N
G1.0 PAMAM dendrimer
Pd(OAc)2
+
500 nmKensuke Naka, Hideaki Itoh, and YoshikiChujo
1238 Highly Active and Selective Pd–Cu–TiO2
Catalyst for the Direct Synthesis of BenzylAcetate by Gas Phase Acetoxylation ofToluene
CH3
AcOH
CH2OAc
++ 1/2 O2 H2O+catalyst
A first report on achieving significantly higher conversionof toluene (ca. 60%) and higher yields of benzyl acetate
Pd−Cu−TiO2 catalyst and successfully overcoming theproblem of catalyst deactivation.
(ca. 55%) through vapor phase acetoxylation usingA. Benhmid, K. V. Narayana, A. Martin,B. Lucke, and M.-M. Pohl
1240 Cobalt-catalyzed Cross-coupling Reaction ofChloropyridines with Grignard Reagents
dioxane
Co(acac)2, RMgX
N RN Cl
R = PhCH2, (CH3)3SiCH2, Ph
Hirohisa Ohmiya, Hideki Yorimitsu, andKoichiro Oshima
1242 VUV Photocatalytic Degradation of Toluenein the Gas Phase
Toluene degraded more fast under 185 nm
(VUV) than that under 254 nm (UV).
0
5
10
15
20
25
30
0 2 864
Inlet concentration (mg/m3)
Rea
ctio
n ra
te (
mg/
m3 .
min
) TiO2/VUVVUVTiO2/UV
Pengyi Zhang, Juan Liu, and Zhongliang Zhang
Chemistry Letters Vol.33, No.10 (2004) C-149
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1244 High Electron Drift Mobility in an Amor-phous Film of 2,4,6,-Tris[4-(1-naphthyl)-phenyl]-1,3,5-triazine
N
N N
N2 laser (337 nm)(3.8 × 10−5 V cm−1)
2,4,6-Tris[4-(1-naphthyl)phenyl]-1,3,5-triazine exhibited a high electrondrift mobility of 8.0 × 10−4 cm2 V−1 s−1 in a TOF measurement.
Al
ITO
Tsutomu Ishi-i, Kentaro Yaguma, ThiesThiemann, Masataka Yashima, Kazunori Ueno,and Shuntaro Mataka
1246 Boron Trifluoride Etherate Mediated Dehy-drogenative Nucleophilic Addition Reactionof Aliphatic Ethers in the Presence of AcetalAffording ,-Unsaturated Carbonyl Com-pounds O
R2R1
BF3•OMe2
OR2
R1
Ph R1
OOMeR2
Ph
OMe
Ph
OMe
OMe Ph R1
O
R2 = CH(CH3)R1
BF3•OMe2
- Hydride complex- Proton
Takashi Jobashi, Masaomi Takano, TetsuoHino, Katsuya Maeyama, Keigo Fugami,Hiroyuki Ozaki, Kenji Ogino, and NoriyukiYonezawa
1248 Fabrication of Calcium Carbonate withExquisite Morphologies and Colors througha New Controlled Precipitation Approach
Wei Shan, Bo Wang, Ya-Hong Zhang, Bi-YunWu, and Yi Tang
1250 Direct Observation of Polytungstate Clusterand Monolayer Tungstate on ZirconiumOxide by High-resolution TEM
Direct observation of WO3/ZrO2 by using high-resolution TEM images revealed the
formation of polytungstate cluster with a narrow size distribution ranging in 0.4−0.7 nm, and
the agglomeration into monolayer tungstate after the aging at 1073 K.
Tungstate monolayer
5 nm5 nm
Polytungstate cluster
Atsushi Satsuma, Hitoshi Yokoi, HiroyukiNishiyama, Shiro Kakimoto, Satoshi Sugaya,Takafumi Oshima, and Tadashi Hattori
1252 Novel Anion Exchange Resin-based Catalystfor Liquid-phase Methanol Synthesis at 373–393K
Two model processes, a semi-batch operation and a continuous flow
catalyst performance is sufficiently high.
CO/2H2
Solid catalyst(Cu−Resin-OCH3)
MeOH (liq)
operation for methanol synthesis are possible without recycle if the
Ken-ichi Aika, Hidenobu Kobayashi, KenjiHarada, and Koji Inazu
C-150 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1254 The Effect of the Si/Al Ratio on the Photolu-minescence Properties of Cu(I)SAPO-5Catalysts
SAPO-5
N2O N2 + O2 N2O
O O O O O O
Si Al P Al P
O OO O O O O O O O
Cu(I)Cu(I)
hν hν
The Cu(I) species characterized by
presence of H2O vapor at 298 K.
the photoluminescenc around490 nm, which is produced by thereduction of Cu(II) ion exchangedwith the bridging hydroxy group(Si−OH−Al) SAPO’sof frameworkwas found to play an importantrole as a stable active site for thephotocatalytic decomposition ofN2O into and even2N 2O in the
at
Haijun Chen, Masaya Matsuoka, JinlongZhang, and Masakazu Anpo
1256 Hybridization of Surface-modified Semicon-ductor Nanoparticles and a Resin
CdSe nanoparticle capped by SH-PMMA polymers (prepared by RAFT technique)
CdSeCdSe
: TOPO : SH-PMMA
Kazuaki Matsumoto, Ryotaro Tsuji, YoshiharuYonemushi, and Tatsushi Yoshida
1258 Synthesis of the Sterically Fixed BiliverdinDerivative Bearing the Z-anti C/D-RingComponent
+
NHMe
Me
O
Ts
NH
CO2tBu
Cl
CO2Allyl
OHC
N
CO2H
N
MeMe
O HNMe
HN
MeO
CO2H
A
BC
D
D
C
HN
MeO Sp-Tol
Ts
A
HNMe
CHO
CO2Allyl
tBuO2CB
Zanti
+
Mostafa A. S. Hammam, Yasue Murata, HidekiKinoshita, and Katsuhiko Inomata
1260 Formation of Surface Nano-step Structuresand Improvement of Photocatalytic Activ-ities of NaTaO3 by Doping of Alkaline EarthMetal Ions
Doping ofSr2+ ions
Formation of nano-step structuresand fine particles!!
Non-doped NaTaO3 Sr-doped NaTaO3
1 µm 0.1 µm
The strategy of improvement of photocatalytic activity Water splitting onNiO (0.2 wt %)/NaTaO3:Sr (2%)using a 400-W high pressureHg-lampH2: 9.5 mmol h–1
O2: 4.7 mmol h–1
Akihide Iwase, Hideki Kato, Hiroaki Okutomi,and Akihiko Kudo
1262 Spongiacysteine, a Novel Cysteine Derivativefrom Marine Sponge Spongia sp.
O
N
CO2H
S
OHOH
H
spongiacysteine
• Isolated from Japanese sponge Spongia sp.• Antimicrobial activity
Keiko Kobayashi, Hiroki Shimogawa, AkiraSakakura, Toshiaki Teruya, Kiyotake Suenaga,and Hideo Kigoshi
Chemistry Letters Vol.33, No.10 (2004) C-151
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1264 Self-assembly of Tetramethylated Resorcin-[4]arene to Form Molecular Capsules Incor-porating Methanol, Ethanol, and Imidazole:A Comparison with the Unsubstituted Resor-cin[4]arene System
Katsuyuki Aoki, Toshiki Nagae, Rei Matsubara,and Ikuhide Fujisawa
1266 Amorphous Molecular Materials with HighCarrier Mobilities: Thiophene- and Seleno-phene-Containing Tris(oligoarylenyl)amines X
XX
N
X
XX
N
X = S : TTPAX = Se : TSePA
X = S : TPTPAX = Se : TPSePA
Hitoshi Ohishi, Masatake Tanaka, HiroshiKageyama, and Yasuhiko Shirota
1268 Color Changes Dependent on the AnisotropicIntercalation of Poly(diacetylenecarboxy-lates) in LDH Clay Hybrids
OOO
O
OOOOOOO
O
LDH LDH
mono-[16,1] mono-[10,11]
Toshio Itoh, Tetsuya Shichi, Tatsuto Yui,Hiroki Takahashi, and Katsuhiko Takagi
1270 Self-assembly of a Novel ManganiferousCoordination Polymer with Mixed Ligands A novel coordination polymer, [(NA)(ONA)Mn(II)] n
(HNA = nicotinic 2H ONA = 2-hydroxyni-acid;
cotinic acid) has been hydrothermally synthesized.It up ofmade mixed-ligands and hexa-is
Mn(II)coordinated linkers. ONA groups bridge Mnions, the right- and left-handed helicaltorisegiving[(ONA)Mn]n chains. The helical are furtherchainsheld groups to form a novel 3-DNAbytogether
chain labeled in cyan color.framework. showsThe diagram one right-handedYouwei Yao, Qiang Cai, Huizhong Kou,
Hengde Li, Dan Wang, Ranbo Yu, Yunfa Chen,and Xianran Xing
1272 One-pot Solution-phase Synthesis of Para-magnetic Co2P Nanorods
A solution-phase route has been developed for the synthesis of cobalt phosphide nanorods. Themicroscope analysis reveals that the nanorods have width of about 10 nm and length of 200−300 nm,which exhibit paramagnetic behavior down to 2 K.
Hongwei Hou, Qing Yang, Chenrong Tan,Guangbin Ji, Benxi Gu, and Yi Xie
C-152 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1274 Insulinomimetic Vanadyl–Hydroxythiazole-thione Complexes with VO(S2O2) Coordina-tion Mode: The Correlation between the Ac-tivity and Hammett’s Substituent Constant
N
SS
OR
N
SS
OR
V
O
VO(S2O2)Akira Katoh, Mika Yamaguchi, Ryota Saito,Yusuke Adachi, and Hiromu Sakurai
1276 New Approach for the Recovery of BisphenolA fromWater Using Inclusion Complex withQuinoline Derivatives
1.0 M HCl (4.0 mL)
4(1.1 mmol)
OHHON
host-guestcomplexation
3 was recovered in 87% yieldfrom the water solution
Bisphenol A (3) Quinoline (4)
0.1 M NaOH (45.0 mL)
3(1.0 mmol)
inclusion crystal of 3 with 4
Bunpei Hatano, Akiko Aikawa, HideyukiTagaya, and Hiroki Takahashi
1278 Microwave Assisted Facile One-Pot Synthe-sis of 188Re-Complex Using a Tetrahydrobo-rate Exchange Resin. A Bifunctional Chelat-ing Agent for Radiopharmaceuticals HN
SS
NH
3
Na188ReO4, BER, SnCl2 • 2H2O
MWI, 5 min, 300 W
N
SS
N
Re
O
188
5
H
Sang Hyun Park, Hui Jeong Gwon, and KyungBae Park
1280 Palladium-Catalyzed Mizoroki–Heck-typeReactions Using Telluronium Salts
RR
+
Pd(II) catAgOAc
CH3CN, 50 °CTe+Me2I-
X : H, 4-Me, 4-MeO, 4-CF3, 2-Me, 2-MeO R : CO2Bu, CN, CHO, COMe, Ph
X X
Kazunori Hirabayashi, Yoshiko Nara, ToshioShimizu, and Nobumasa Kamigata
1282 A Novel Layered Structure of a New Cadmi-um Chlorophosphate with an ImidazoliumTemplate
Wei Liu, Hao-Hong Chen, Xin-Xin Yang,Man-Rong Li, Ming-Hui Ge, and Jing-Tai Zhao
Chemistry Letters Vol.33, No.10 (2004) C-153
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1284 Growth of Mesoscale Tubular CdS Crystalsvia a Hydrothermal Method
Tubular structure CdS with the range of 0.5−2 mm
3−6 µm in the wall thickness, were successfully
hydrothermal method at 350 ˚C.
in in10−20 µmlength, the external diameter and
grown in sodium hydroxide solution via a
c
Xinzheng Liu and Fan Guo
1286 Preparation of Mixed-metal PolynuclearComplexes by Stepwise Phosphine-bridgingReaction
PdCl
Cl P
P
PdP
P ClCl
Pt
4-Cltp
P4-Cltp
PRh
PClCl
RhP Cl Cl2Cl-
P
P
4-Cltp
PPdP
(BF4)
PdP
Cl P
P PdP
P P
ClPt
4-Cltp
P4-Cltp
P2
(BF4)2
[Rh2Cl4Cp*2]
trans-[PtCl2(NCPh)2]
Sen-ichi Aizawa, Tatsuya Kawamoto, andKenji Saito
1288 Selective Production of "-Caprolactam viaLiquid-phase Beckmann Rearrangement ofCyclohexanone Oxime over HUSY Catalyst
ε-Caprolactam was selectively producedthrough the liquid-phase Beckmannrearrangement of cyclohexanone oximeover HUSY catalyst when the by-productsformation was effectively retarded byblockage of the corresponding activecenters of pre-adsorbed water andbenzonitrile molecules.
NOH
NH
O
H2O-HUSY
in PhCN
Cyclohexanoneoxime
ε -Caprolactam 97% selectivity
Chawalit Ngamcharussrivichai, Peng Wu, andTakashi Tatsumi
1290 Delocalization of Positive and NegativeCharge Carriers on Oligo- and Poly-fluo-renes Studied by Low-Temperature MatrixIsolation Technique
Oligofluorenes with well-defined chain length (n = 1–5) have been synthesized by step-by-stepSuzuki coupling reaction. The spectroscopy of radical anions and cations indicates the clearrelationship between the transition energy and the chain length without saturation in the degree ofdelocalization of excess electrons or holes.
Yoshiko Koizumi, Shu Seki, Anjali Acharya,Akinori Saeki, and Seiichi Tagawa
1292 Direct Observation of Hydroxyapatite Nucle-ation from Amorphous Phase in a Stoichio-metric Calcium/Phosphate Aqueous Solu-tion
In the BF image (left), the morphology of the individual particles is spherical (shape of ACP),not of rod-like shape (HAp crystals). However, the DF image (right) shows many tiny brightspots, which is the evidence of the presence of tiny crystals. Nuclei of the HAp crystals seemto be nucleated directly from ACP and they will develop to rod-like or acicular shapes later.
Sujin Kim, Hyun-Seung Ryu, Hyunho Shin,Hyun Suk Jung, and Kug Sun Hong
C-154 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1294 A Single-source Approach to MetastableNi3S4 Crystallites and Their Optical Proper-ties NiCl2 + 2 NaS2CNEt2 → Ni(S2CNEt2)2 + 2NaCl
Ni3S4
Xiangying Chen, Zhenghua Wang, XiongWang, Junxi Wan, Jianwei Liu, and Yitai Qian
1296 Synthesizing Multidentate Ferrocenylphos-phines: A Powerful Route to Dissymmetri-cally Tri-Substituted Ferrocenes. X-rayStructure and 13CNMR of a Diaryl–Alkyl-phosphino Ferrocene
The new mixed diaryl/alkyl triphosphine1,2-bis(diphenylphosphino)-1'-(diisopropylphosphino)-4-tert-butylferrocene, Fc(P)2
tBu(PiPr).
Fe P(1)
CNT(1)
CNT(2)
P(2)
P(3)
C(5)
C(14)
C(13)
Jean-Cyrille Hierso, Vladimir V. Ivanov,Regine Amardeil, Philippe Richard, andPhilippe Meunier
1298 Double Elimination Protocol for Access toPyridine-Containing Arylene–Ethynylenes
NOHCN
C6H13
SO(=NTs)Ph
SO(=NTs)Ph
+
NN N
N
C6H13
C6H13
Akihiro Orita, Takehiko Nakano, TaisakuYokoyama, Govindarajulu Babu, and JunzoOtera
1300 A Novel Au12 Supramolecule Composed ofTwo-, Three-, and Four-coordinated Au(I)Centers Constructed on the S3 Scaffolding
Keiko Nunokawa, Tetsuya Sunahara, SatoruOnaka, Kazuya Okazaki, Hiroyuki Imai,Katsuya Inoue, and Tomoji Ozeki
1302 Characteristics of Pyrimidine Nucleobasesthrough Inter-base Interactions on the Crys-tals of the Ternary Copper(II) Complexes
Intermolecular Triple Hydrogen Bonding Interaction
Koichiro Jitsukawa, Mamoru Mizutani,Hidekazu Arii, Ichiro Kubo, Yasuyuki Izu,Tomohiro Ozawa, and Hideki Masuda
Chemistry Letters Vol.33, No.10 (2004) C-155
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1304 Stereoselective Preparation of -Hydroxy-carboxamide by Manganese Complex Cata-lyzed Hydration of,-Unsaturated Carbox-amide with Molecular Oxygen and Phenylsi-lane
PhSiH3
O2 (1 atm)5 mol% Mn(dpm)3
diastereoselectivity
O
Xc*
OHR
O
Xc*R
NXc* =Favored
Disfavored
90 97%
Mitsuo Sato, Yasuhiko Gunji, Taketo Ikeno,and Tohru Yamada
1306 Oxidative Desulfurization of Diesel Oil withHydrogen Peroxide in the Presence of AcidCatalyst in Diesel Oil/Acetic Acid BiphasicSystem
H2O2
acid cat.SR R
SR R
SR R
O
SR RO
[Oil phase]
[AcOH phase]+
OKazumasa Yazu, Mitsunori Makino, and KojiUkegawa
1308 Solvent-free Imino-Aldol Three-componentCouplings on a Conveniently-prepared andReusable Phosphoric Acid-Silica Gel Sup-port
HN
R3 R4
O
R5H3PO4-SiO2
Ar, −5 oC, 16 h
R1
R2
R1CHO + R2NH2
R3
R4
OSiMe3
R5
Sandra Lock, Norikazu Miyoshi, and MakotoWada
1310 Identification of Reaction Model of PyrolysisReaction of HDPE
t/t 0.9
0.0 0.2 0.4 0.6 0.8 1.0
Co
nve
rsio
n
0.0
0.2
0.4
0.6
0.8
1.0
718K723K728K733K
1310
6 5
11
412 9
8 3
7 2
1
Seungdo Kim, Young-Chun Kim, and Eun-SukJang
1312 Single-crystal-to-Single-crystal Polymeriza-tion of 4,40-ButadiynedibenzylammoniumDisorbate UV
X-Rayγ-Ray
Toru Odani, Shuji Okada, Chizuko Kabuto,Tatsumi Kimura, Hiro Matsuda, AkikazuMatsumoto, and Hachiro Nakanishi
C-156 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1314 Microwave-assisted Synthesis of Single-crystalline CuO Nanoleaves
500 nm500 nm
Single-crystalline CuO nanoleaves with anaverage thickness of about 10 nm and withlateral sizes of hundreds of nanometers toseveral micrometers have been successfullysynthesized by microwave-heating of anaqueous solution containing copper saltand sodium hydroxide.
Zhen-Hua Liang and Ying-Jie Zhu
1316 Iridium-Catalyzed Addition Reactions ofEthynylsilane to Quinolines and Isoquino-lines Activated by Acyl Chloride
N
R1R3
N
R1R2
R4
R4
R3
H TMS
ClCO2Ph or ClCOPh
[IrCl(COD)]2(1~5 mol%)
N
CO2Ph TMS
R3 R1
N
R2
R1
COPh
TMS
R4
R4
R3
2,6-Lutidine
THF, 24 h
R2R2
Yusuke Yamazaki, Ken-ichi Fujita, and RyoheiYamaguchi
1318 ZnO Particles Encapsulated in Porous Cu2ONanoparticle Layer Prepared by UV Light-Induced Photoreduction of Cu(NO3)2.3H2Oover ZnO in Methanol Suspension (111)
(110)
(200)
40 41 42 43 44 45
30 40 50 60
Cu2O/ZnO
ZnO
Inte
nsity
/ a.
u.
2 thetaLianhai Lu and Roland A. Fischer
1320 Synthesis and Characterization of Monodis-perse ZnS Nanospheres
200 250 300 350 400 450 500 550 600 650 7000
100
200
300
400
500
600
700
800
900
1000
1100
Inte
nsity
/a.u
.
Wavelengh/nm
EX EM
------ annealed ZnS
Yue Zhang, Qing Peng, XunWang, and YadongLi
1322 A Study on the Electronic Effect of Reactionsof -Allylpalladiums Using 2-Arylsulfonyl-oxy-3-chloropropenes with Ethyl Malonateand Their Synthetic Utilization
H
H
OCl
O2S X
H
H
ONu
O2S X
Nucleoplile
Pd(0)
MeO>Me>Cl,Br>NO2
rate orderKohei Gotoh, Yasutaka Matsuura, FuminoriHatanaka, Setsuko Sato, Shinzoh Kagabu, andMitsuhiro Yoshimatsu
Chemistry Letters Vol.33, No.10 (2004) C-157
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1324 A Novel One-pot Synthesis of CyanohydrinAlkyl Ethers from Aldehydes Catalyzed byIron(III) Chloride
OR'
R CNRCHO
TMSCNR'OTMS
R = Aryl, Alkyl; R' = Benzyl, Allyl, Alkyl (1o, 2o)
cat. FeCl3
up to 98%
Katsuyuki Iwanami and Takeshi Oriyama
1326 Facile Route for the Preparation of HollowSilica Using Aromatic Desilylation in Phenyl-silsesquioxane Particles
Seung Hoon Han, Tae Sung Si, and Sang ManKoo
1328 Frontier Electron Density Pattern of DioxinCongeners
HOMO of 2,3,7,8-tetrachlorinated dibenzo-p-dioxin.Yoshihiro Mizukami
1330 Pt-implanted Boron-doped DiamondElectrodes for Electrochemical Oxidation ofHydrogen Peroxide
Comparison of Pt-implanted BDD and Pt metal shows much larger signal to background ratio forthe electrochemical oxidation of hydrogen peroxide at Pt-implanted BDD.
Tribidasari A. Ivandini, Rika Sato, YoshihiroMakide, Akira Fujishima, and Yasuaki Einaga
1332 Microwave-assisted Synthesis of Flower-like ZnO Nanosheet Aggregates in a Room-temperature Ionic Liquid
A fast and environmentally benign microwave-assisted route has been developed forsynthesis of flower-like ZnO nanosheets aggregates in ionic liquids. This method may beextended to synthesize other oxides nanomaterials.
a b
Jieming Cao, Jun Wang, Baoqing Fang, XinChang, Mingbo Zheng, and Haiyan Wang
C-158 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1334 High-Pressure Synthesis and Properties of aCerium Germanide CeGe3 with the CubicCu3Au Type Structure
Ce
Ge
CeGe3
0
50
100
150
0 100 200 300Temperature / K
ρ /
µΩ
cm
Hiroshi Fukuoka and Shoji Yamanaka
1336 Novel Families of Hole-TransportingMonomers and Polymers
O
N
O
NAr NN
Ar NN
NN
HO OH
S S S* *n
SHHS S
(C2H5)3N
Vytautas Getautis, Juozas Vidas Grazulevicius,Tadas Malinauskas, Vygintas Jankauskas, ZbigTokarski, and Nusrallah Jubran
1338 Simple Route for Synthesis of PbS DendriticNanostructured Materials
Novel PbS dendritic nanostructured materials aresynthesized using 2-aminoethanethiol (AET) via simplehydrothermal approach. The morphology evolution ofPbSrod-shapednanostructures is well illustrated and explained in termsof the adsorption of AET molecule on the crystalsurface.
one-dimensionalnanodots,zero-dimensionalfromdendriticthree-dimensionaltostructure
Qing Huang and Lian Gao
1340 A New Approach for the Au/Ag Alloy Nano-particle Formation through the Reduction ofAg(I) to Ag(0) by Amine and IntermetallicElectron Transfer from Ag(0) to Gold(I)Complex
AgI
Growth stage
AuI
NEt3
Intrametallicelectron transfer
Alloy nanoparticles
[Au(C13H27CO2)(PPh3)] +
C13H27CO2Ag
NEt 3
20 nm
Au0
Ag0
Ag0 reductionMari Yamamoto and Masami Nakamoto
1342 An Efficient Catalyst for Low TemperatureSolid-phase Cyclization of Poly(o-hydroxy-amide)
An quantitative solid-phase cyclization of poly(o-hydroxyamide) into poly(benzoxazole) has beendemonstrated using an acid catalyst (5-propylsulfonyloxyimino-5H-thiophen-2-ylidene)-2-(methylphenyl)acetonitrile (PTMA) at 250 °C in 10 min.
HN
HN
OHHO
OCF3F3C PTMA
PHA PBO
ON
O
NCF3F3C
nn
250 °C, < 10 minO O O
Fumihiro Toyokawa, Ken-ichi Fukukawa, YujiShibasaki, and Mitsuru Ueda
Chemistry Letters Vol.33, No.10 (2004) C-159
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1344 Preparation Method Allowing Self-isolationof CdS Nanocrystals Emitting IntenseBand-gap Luminescence
Susumu Kuwabata, Keiko Ueda-Sarson, andTsukasa Torimoto
1346 Large Scale Synthesis of Carbon HollowSpheres from Metal Zinc Powder andEthanol
A simple method was used to prepare carbon hollowspheres with average size of about 400 nm in diameterfrom metal zinc powder and ethanol. The FE-SEM andTEM images show that these carbon spheres have aball-like and vessel-like morphology, all of which havesmooth surfaces and a quite uniform diameter.
Wu Zhang, Jianwei Liu, Zhen Huang, DekunMa, Jianbo Liang, and Yitai Qian
1348 Construction of Z-scheme Type Heterogene-ous Photocatalysis Systems for Water Split-ting into H2 and O2 under Visible LightIrradiation
H2-Photocatalyst
Fe2+
Fe3+
O2-Photocatalyst
Electron relayFe3+/Fe2+ couple
BiVO4 (BG: 2.4 eV)Rh-doped SrTiO3
(Energy gap: 2.4 eV)
Donor level(Rh3+)
O2, H+
H2O
Visible light
CB
VBh+
H+
H2Pt
h+
CB
VB
Visible light
e–
e–
Hideki Kato, Mikihiro Hori, Ryoko Konta,Yoshiki Shimodaira, and Akihiko Kudo
1350 Preparation of "-Caprolactam via Beck-mann Rearrangement of CyclohexanoneOxime: A Mild and Recyclable Process
N N SO2ClCF3SO3
ionic liquid
NOH
N
O
ionic liquid
ScCO2 + CHCl3
(CH2)n
1. n = 3, 2. n = 4
Kun Qiao, Youquan Deng, Chiaki Yokoyama,Hikaru Sato, and Miki Yamashina
1352 Synthesis of Controllable Crystalline Nano-TiO2 at Low Temperature Controllable crystalline nano-TiO2
with high surface area wassuccessfully synthesized at lowtemperature with reversemicroemulsion method by simplyvarying the proportion of Cl– andSO4
2– in aqueous phase ofmicroemulsion. The mechanism offorming different contents ofanatase is proposed. Thephotocatalytic activity of thesamples shows that anatase andrutile have a synergistic effect inenhancing the photocatalyticactivity of TiO2.
Maocheng Yan, Feng Chen, and Jinlong Zhang
C-160 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1354 A New Class of Substrates for the Nucleo-philic 5-endo-trigCyclization, 1-Trifluorome-thylvinyl Compounds: Syntheses of Indolineand Pyrrolidine Derivatives
N
CF3
N
CF2
N
CF3
or"5-endo -trig "
–
Ts Ts Ts
Junji Ichikawa, Takashi Mori, and Yu Iwai
1356 Iron-Catalyzed Dechlorination of ArylChlorides
ClR
BuMgCl (3 equiv.)10 mol% FeCl3
THF, 50 °CH
R
R = electron-donating group high yield
Haiqing Guo, Ken-ichiro Kanno, and TamotsuTakahashi
1358 The Influence of Polytypic Structures on theSolid-state 13CNMR Spectra of n-Alkanes Mon
Orth II
Intensity
40 30 20 1013C Chemical Shift /ppm
32°C
CH3
inner-CH2
18 16 14
Orth II:15.2 ppmMon:15.5 ppm
The difference in solid-state 13C NMR spectra between the two polytypic structures of n-C36H74
Hideki Kubota, Fumitoshi Kaneko, ChikayoAkita, and Tatsuya Kawaguchi
1360 Allylimidazolium Halides as Novel RoomTemperature Ionic Liquids
Introduction of allyl group onto imidazolium salts improvedviscosity, thermal property and ionic conductivity of thesalts containing halide anion.
Tomonobu Mizumo, Edy Marwanta, NoriyoshiMatsumi, and Hiroyuki Ohno
1362 An Efficient Method for the Ether FormingReaction between Alkyl Diphenylphosphi-nate and Alkoxytrimethylsilane by the Pro-motion of Trimethylsilyl Triflate
Ph2POR R'OTMS ROR'TMSOTf
O
Yohei Kobashi, Tomofumi Minowa, andTeruaki Mukaiyama
Chemistry Letters Vol.33, No.10 (2004) C-161
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1364 Addition of Organostannanes to IsocyanateCatalyzed by a Rhodium Complex
OCNR1 +R1
O
HN R2R2 SnBu3
cat Rh(I)PhOH
THF, 70 °C
Tooru Koike, Masabumi Takahashi, NobumichiArai, and Atsunori Mori
1366 Fabrication of Novel Vanadium DioxideNanorods as CathodeMaterial for Recharge-able Lithium Batteries
VO2(B) nanorods in diameter of40–60 nm and in length up to1–2 µm were fabricated via asurfactant-assisted hydrothermalmethod. Electrochemical test resultsdemonstrate that the nanorodsshow an initial discharge specificcapacity of 306 and 245 mAh/g inthe fifteenth cycle.
Wen Chen, Junfeng Peng, Liqiang Mai, HuaYu, and Yanyuan Qi
1368 Preparation of Protected Nanoparticlesof Bismuth Telluride by Laser Ablation inSolution
Norihisa Watanabe, Jun Kawamata, and NaokiToshima
1370 One-pot Synthetic Method of Allyl Sulfides:Samarium-induced Allyl Bromide MediatedReduction of Alkyl Thiocyanates and DiarylDisulfides in Methanolic Medium
RSCNSm/Allyl bromide/ MeOH
rt, 30min
ArSSAr ArSCH2CH=CH2
RSCH2CH=CH2
Sm/Allyl bromide/ MeOH
rt, 30min Yield: 76% 83%
Yield: 80% 93%
Zhuang-Ping Zhan and Kai Lang
1372 Ab initio Studies on Synthetic Routes of Gly-cine from Simple Molecules via Ammonoly-sis of Acetolactone: Applications of theScaled Hypersphere Search Method
New synthetic routes of glycine have been discovered by theoretical search of ab initio potential energy surfaces. One stepreaction of acetolactone with ammonia can produce glycine without byproducts, and its activation energy is 1.6 kcal•mol-1.Acetolactone can be produced from either carbon dioxide and singlet methylene (CO2 + CH2) or carbon monoxide andformaldehyde (CO + HCHO) with respective activation energies of 3.2 and 36.3 kcal•mol-1.
acetolactone
C
O
C O
Glycine
CO2 + CH2
CO + HCHO C
O
C
ON
+ NH3
Satoshi Maeda and Koichi Ohno
C-162 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1374 Synthesis and Electrochemical Properties ofSingle-crystal CdV2O6 Nanowire Arrays
Single-crystal cadmium vanadate (CdV2O6)
with that of bulk CdV2O6.
nanowire arrays with the average diameterof 100 nm and length of up to 20 µm werefabricated by a hydrothermal process at140 °C Electrochemicalfor 12 h. testshows that these nanowire arrays deliver arelatively large discharge capacity of90 mA vs at 0.1 mAmetalLi−1gh −2cm(voltage comparedV)3.2−2.0ofwindowXiangying Chen, Xiong Wang, Zhenghua
Wang, Junxi Wan, Jianwei Liu, and Yitai Qian
1376 Synthesis and Luminescent Properties of aNew Twisted Copolymer Containing Phenyl-enevinylene and Spirobifluorene OHC
CHO
t-BuOK
THF
OC4H9
C4H9On+
OC4H9
OC4H9
P(OC2H5)2
(C2H5O)2P OO
Bing Huang, Jun Li, Pin Shao, Jingui Qin,Zuoquan Jiang, Gui Yu, and Yunqi Liu
1378 Zn/CeCl3.7H2O-TBPB: A New and ‘Green’Promoter System for Rapid and Regioselec-tive Thiolyzation of 1,2-Epoxides with ArylDisulfides
O
R
ArSSArZn / CeCl3. 7H2O-TBPB
70 °C
ArS
OH
OH
or SAr
R R
+
Ahmad R. Khosropour, Mohammad M.Khodaei, and Kazem Ghozati
1380 Photochromism of a Diarylethene Trimer ina Bulk Amorphous Phase
MeMe
N
S
S
S
Me
Me
MeMe
Me
Me
S
Me
S
S
N
S
S
S
Me
Me
Me
Me
Me
SF2
F2
F2
F2
S
S
F2F2
F2 F2
F2
Me
MeMe
Me
hν
hν '
F2
F2
F2
F2
F2F2
F2 F2
F2
Arisa Tomari, Tadatsugu Yamaguchi, NaotakaSakamoto, Yuji Fujita, and Masahiro Irie
1382 Crystallization Process of TiO2 Nanopar-ticles in an Acidic Solution
300 400 500 600
A RAR
tpep
=24 h
tpep
=10 min
th/c
=24 h
th/c
=10 min
Inte
nsity
(arb
.uni
t)
Raman shift (cm−1)
Addition of nitric acid at 30 °C to hydrolysis and condensation (h/c)product for peptization yields anatase from amorphous phaseas early as 10 min of peptization (tpep = 10 min) as seen in the Ramanspectrum. However, the anatase formed under such condition has alocally distorted atomic arrangement, as confirmed by a broad bandbetween 425 and 605 cm-1 and shift from the position of anatase (A:515 cm-1). Such a metastable anatase would be prone to dissolve asthermodynamically stable Ti(OH)2
2+ reported in the literature, which, inturn, would crystallize to rutile, which is the eventual phase by thepeptization in this work. The activation energy of the new two-stepprocess at 30 °C has certainly been greatly lowered from a solid-statereaction as the latter requires about 400−1200 °C for directanatase/rutile conversion.Hyunho Shin, Hyun Suk Jung, Kug Sun Hong,
and Jung-Kun Lee
Chemistry Letters Vol.33, No.10 (2004) C-163
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1384 Synthesis and Characterization of BariumSulfate Nanotubes
Tubular barium sulfate, havingdiameters in the range of 200–350 nmand length up to 30 microns, wasfabricated by a nanochannel reactor.The process is very simple, efficient,and easy to control, which can be usedto prepare a wide range of tubularinorganic nanomaterials.
Xiao-Jing Lu, Xian-Wen Wei, Jian Sun,Yong-Hong Ni, Guang-Chao Zhao, and Yin Ye
1386 Redox-controlled Luminescence of a Cyclo-metalated Dinuclear Platinum ComplexBridged with Pyridine-2-thiolate Ions
Pt2
Pt1
Tamami Koshiyama, Ai Omura, and MasakoKato
1388 Synthesis of Li[Ni1=3Co1=3Mn1=3]O2zFz viaCoprecipitation
DSC traces of theLi[Ni1/3Co1/3Mn1/3]O2-zFz at 4.6 V
150 200 250 300 350
Li[Ni1/3
Co1/3
Mn1/3
]O2-z
Fz
[z = 0.15]
626 J g-1
[z = 0.1]
839.2 J g-1
[z = 0.05]
1733 J g-1
[z = 0]
4227 J g -1
Hea
t flo
w /
W g
-1
Temperature / °C
DSC traces of theLi[Ni1/3Co1/3Mn1/3]O2-zFz at 4.6 V
150 200 250 300 350
Li[Ni1/3
Co1/3
Mn1/3
]O2-z
Fz
[z = 0.15]
626 J g-1
[z = 0.1]
839.2 J g-1
[z = 0.05]
1733 J g-1
[z = 0]
4227 J g -1
Hea
t flo
w /
W g
-1
Temperature / °CSeung-Taek Myung, Gil-Ho Kim, and Yang-Kook Sun
1390 Microwave-assisted Synthesis of Nanocrys-talline Metal Sulfides Using an Ionic Liquid
Nanoparticles of metal sulfides (ZnS andCdS) have been successfully synthesizedusing an ionic liquid 1-n-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4)under microwave heating at 100 °C for 10min.
20nm 20nm
Ya Jiang and Ying-Jie Zhu
1392 A Naphthalimide Fluorescent Sensor forZn2þ Based on Photo-induced ElectronTransfer
A new Zn2+ fluorescent sensor exhibits intense fluorescence after complexation with Zn2+ (innanomolar) under physiological conditions. Other cations such as such as Na +, K+, Ca2+, Mg2+, Fe3+, Ni2+, and Cr3+ have little influence on fluorescent enhancement.
N OOCH3
NH
NN
N
N OOCH3
HN N
N
N
+Zn2+
max= 443 nm em = 539 nm
pH 7.4
λ λ
Zn2+
Jiangli Fan, Yunkou Wu, and Xiaojun Peng
C-164 Chemistry Letters Vol.33, No.10 (2004)
Copyright 2004 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
1394 A Cation-exchange Resin Promoted IminoAldol Reaction, Leading to the Synthesis of2-Isocephem and 2-Oxa-isocephem H
N
O
MeO
PMP
OMe
N
MeO
O
OSO2Me
OMeMeO
OTMS
O
OMeMeO
OMe
ONHPMP
OMe
+Amberlyst® 15 DRYO
O
PMPMakoto Shimizu, Masanori Tachi, and IwaoHachiya
1396 Preparation and Enhanced ElectrochromicProperty of Three-dimensional OrderedMesostructured Mixed Tungsten–TitaniumOxides
Minjia Yuan, Yidong Lu, Bozhi Tian, HaifengYang, Bo Tu, Jilie Kong, and Dongyuan Zhao
1398 Photochromic Properties of DiaryletheneMaleimide Derivatives in Polar Solvents
N OO
SS OMe
Me
CNN OO
SS
Me
CN
OMeR R
hν
hν'
R = HR = NO2
The compounds show photochromism in acetonitrile or in ethanol.Tadatsugu Yamaguchi and Masahiro Irie
1400 Synthesis of Dense Y-zeolite Bulks withLarge Surface Area Using a HydrothermalHot-pressing (HHP) Process
Dense Y-zeolite bulks with a higher specific surface area of approximately 800 m2/g was preparedby HHP treatment at 423 K for 2 h with 40 MPa (1.1 mm in thickness and 20 mm in diameter).
Atsushi Nakahira, Shinichi Takezoe, and YukiYamasaki