DEPT Spectra COSY Spectra HETCOR Spectra. DEPT-90, DEPT-135 Distortionless Enhancement by Polarization Transfer Preferred procedure for determining #

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Presentation transcript:

DEPT Spectra COSY Spectra HETCOR Spectra

DEPT-90, DEPT-135 Distortionless Enhancement by Polarization Transfer Preferred procedure for determining # protons attached to carbons Variable proton pulse angle  is set at 90 o and 135 o In DEPT-90, only CH shows. In DEPT-135, CH 2 ’s are phased down, CH and CH 3 are phased up

Adjustment of 1 H pulse angle Avoids overlapping multiplets

2-Heptanone, CPD and DEPT-35

6-Methyl-5-hepten-2-ol Standard CPD Spectrum

DEPT-90 DEPT-135

Limonene

Ipsenol CPD, DEPT-135, DEPT 90

Correlated Spectroscopy

FT of the t 1 domain, acetone

A-B coupling in COSY Spectrum

Isobutyl Alcohol

1 H NMR Spectrum of Ipsenol

COSY Spectra of Ipsenol

HETCOR Spctrum of Ipsenol