Nitroxide radical as a probe for hydrogen bonding in chloro- and fluoroanilines
✍ Scribed by T. Krysiak; I. Wawer; Z. Kȩcki
- Book ID
- 103991182
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 50 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0969-806X
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## Abstract ^13^C NMR contact shifts induced by the 2,2,6,6,‐tetramethylpiperidine nitroxide radical (TMPN) were measured for __N__,__N__‐dimethyl‐__para__‐substituted benzamides and __N__,__N__‐dimethyl‐β‐bromo‐ and ‐α,β‐methylacrylamides. The shifts were linear functions of radical concentration,
l3slinctive pallems of C.. C, CI.\_.CI and C...CI non-bonded short contacLs are oblained for 4 A short axis fi-structures and for nor&s~~ctures in a senes of polychlor~aromatics, phenols and anilines. The direclions of the shortest Cl \_ \_ \_ Cl and C.--C contacts provide an insight mto the role or
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