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NMR Broad Band Spectrometer
Slide show byMike Condren
Spectra Collected byCraig Bradley
of Anasazi Instruments
![Page 2: NMR Broad Band Spectrometer Slide show by Mike Condren Spectra Collected by Craig Bradley of Anasazi Instruments](https://reader035.vdocument.in/reader035/viewer/2022062216/56649dda5503460f94acfdd3/html5/thumbnails/2.jpg)
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
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H-1 Spectra(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
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Coupled to 29Si
Coupled to 117Sn & 119Sn
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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)
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DEPT C-13 Spectra
e
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e
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C-13 Spectra
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
e
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Coupling to 119Sn
Coupling to 117Sn
Coupled to both Sn nuclides
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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
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Modifications to the Magnet Consol
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Equipment for Changing Frequency
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Probe Area
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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
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Si-29 Spectra
Coupling to 119Sn
Coupling to 117Sn
(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3
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