nmr broad band spectrometer
DESCRIPTION
NMR Broad Band Spectrometer. Slide show by Mike Condren Spectra Collected by Craig Bradley of Anasazi Instruments. All Spectra Shown is for One Sample. The spectra of (n-Bu) 3 Sn-Si(CH 3 ) 3 was collected on our Anasazi EFT-60 FT-NMR Spectrometer: H-1 spectra DEPT C-13 Spectra - PowerPoint PPT PresentationTRANSCRIPT
NMR Broad Band Spectrometer
Slide show byMike Condren
Spectra Collected byCraig Bradley
of Anasazi Instruments
All Spectra Shown is for One Sample
The spectra of (n-Bu)3Sn-Si(CH3)3
was collected on our Anasazi EFT-60FT-NMR Spectrometer:
H-1 spectraDEPT C-13 Spectra
C-13 SpectraSi-29 Spectra
Sn-117/Sn-119 Spectra
H-1 Spectra(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e e
}
Coupled to 29Si
Coupled to 117Sn & 119Sn
DEPT C-13 NMR Spectra
Type C CH CH2 CH3
135o 0 + - +
90o 0 + 0 0
45o 0 + + +
Normal + + + +
Distortionless Enhancement by Polarization Transfer (DEPT Spectroscopy)
DEPT C-13 Spectra
e
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e
C-13 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e
e
Coupling to 119Sn
Coupling to 117Sn
Coupled to both Sn nuclides
Changing to another Nucleus
• Takes less than 5 minutes
• Begin by typing the nucleus to be analyzed into the computer
• Follow instructions on the upper right corner of monitor
Modifications to the Magnet Consol
Equipment for Changing Frequency
Probe Area
Sn-117/Sn-119 Spectra
Coupled to 29Si
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e
Coupled to C
Coupled to C
Spinning side bands
C and e C on Si
{
Si-29 Spectra
Coupling to 119Sn
Coupling to 117Sn
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e