NMR Broad Band Spectrometer

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

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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

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(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3

e

C-13 Spectra

(CH3-CH2-CH2-CH2)3Sn-Si(CH3)3

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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

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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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