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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