ROTATION ABOUT THE N-2-N-3 BOND IN 3,3-DIMETHYL-1-(ISOXAZOL-3-YL)-TRIAZENES

Citation
A. Tontini et al., ROTATION ABOUT THE N-2-N-3 BOND IN 3,3-DIMETHYL-1-(ISOXAZOL-3-YL)-TRIAZENES, Journal of the Chemical Society. Perkin transactions. II (Print), (11), 1998, pp. 2361-2363
Citations number
12
Categorie Soggetti
Chemistry Physical","Chemistry Inorganic & Nuclear
ISSN journal
03009580
Issue
11
Year of publication
1998
Pages
2361 - 2363
Database
ISI
SICI code
0300-9580(1998):11<2361:RATNBI>2.0.ZU;2-I
Abstract
The rotational barrier around the N-2-N-3 bond of a series of 3,3-dime thyl-1-(isoxazol-3-yl)triazenes was evaluated by means of NMR line sha pe analysis. The results obtained were compared to N-15 chemical shift measurements and semi-empirical quantum mechanical calculations. An i ncrease of N-2-N-3 bond order, possibly due to an electron withdrawing effect of the isoxazole ring, was noted in our compounds.