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

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Presentation on theme: "DEPT Spectra COSY Spectra HETCOR Spectra. DEPT-90, DEPT-135 Distortionless Enhancement by Polarization Transfer Preferred procedure for determining #"— Presentation transcript:

1 DEPT Spectra COSY Spectra HETCOR Spectra

2 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

3 Adjustment of 1 H pulse angle Avoids overlapping multiplets

4 2-Heptanone, CPD and DEPT-35

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

6 DEPT-90 DEPT-135

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10 Limonene

11 Ipsenol CPD, DEPT-135, DEPT 90

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13 Correlated Spectroscopy

14 FT of the t 1 domain, acetone

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17 A-B coupling in COSY Spectrum

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21 Isobutyl Alcohol

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23 1 H NMR Spectrum of Ipsenol

24 COSY Spectra of Ipsenol

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29 HETCOR Spctrum of Ipsenol

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