Nuclear magnetic resonance studies: VII—13C and 15N n.m.r. of diazo compounds
Authors:
- 1 February 1977
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Chemistry
- Vol. 9 (2) , 75-79
Abstract
The 13C and 15N n.m.r. results for a series of diazo compounds are reported. It is found that the diazo carbon is shielded by an extraordinary amount compared with normal sp2 hybridized carbons. The 15N chemical shifts reveal that the terminal nitrogen is deshielded relative to the central one. This is contrary to that expected from charge effects but support is found for this phenomenon in other systems. One‐bond 13C14N coupling in diazomethane is also reported for the first time. INDO MO calculations of the charges and finite perturbation calculations of 13C14N and CH couplings are compared with the experimental results.Keywords
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