Title: NMR Broad Band Spectrometer
1NMR Broad Band Spectrometer
- Slide show by
- Mike Condren
- Spectra Collected by
- Craig Bradley
- of Anasazi Instruments
2All Spectra Shown is for One Sample
- The spectra of (n-Bu)3Sn-Si(CH3)3
- was collected on our Anasazi EFT-60
- FT-NMR Spectrometer
- H-1 spectra
- DEPT C-13 Spectra
- C-13 Spectra
- Si-29 Spectra
- Sn-117/Sn-119 Spectra
3H-1 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3 d g b
a e
e
Coupled to 117Sn 119Sn
d
Coupled to 29Si
a, b, g
4DEPT C-13 NMR Spectra
Distortionless Enhancement by Polarization
Transfer (DEPT Spectroscopy)
- Type C CH CH2 CH3
- 135o 0 -
- 90o 0 0 0
- 45o 0
- Normal
5DEPT C-13 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3 d g b
a e
g
b
d
a
e
6C-13 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3 d g b
a e
Coupled to both Sn nuclides
Coupling to 119Sn
Coupling to 117Sn
a
d
b
g
e
7Changing 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
8Modifications to the Magnet Consol
9Equipment for Changing Frequency
10Probe Area
11Sn-117/Sn-119 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3 d g b
a e
Spinning side bands
Coupled to 29Si
Coupled to g C
Coupled to a C
b C and e C on Si
12Si-29 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3 d g b
a e
Coupling to 119Sn
Coupling to 117Sn