NMR studies on some N-nitramines and N-nitrosamines
โ Scribed by A.R. Farminer; G.A. Webb
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 420 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0040-4020
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๐ SIMILAR VOLUMES
## Abstract Natural abundance ^17^O NMR data for seven aliphatic, nine cyclic and thirteen aromatic __N__โnitrosamines, recorded at room temperature in acetonitrile, are reported. Differences in chemical shifts among and within the three groups are discussed in terms of electronic and steric effect
## Abstract High precision ^14^N nuclear screening data are presented for some alkylโ and arylโ__N__โsulphinylamines. For the alkyl compounds the ฮฒ effect is seen to produce a decrease in screening and the opposite influence from the ฮณ effect is also observed. An exception to the general tendency f
## Abstract Molecular modeling by molecular mechanics (MM2) calculations were used to predict conformational preferences of cyclic __N__โnitrosamines. The results were compared with ^1^H NMR data. The observed geminal coupling constants ^2^__J__ were considerably stronger for __syn__ than for __ant
## Abstract ^15^N and ^13^C chemical shifts and the ^1^__J__(^15^N^15^N), ^1^__J__(^15^N^13^C) and ^1^__J__(^13^CH) coupling constants have been determined for a number of ^15^Nโenriched cyclic and acyclic secondary nitramines. The results are interpreted in terms of both electronegativity effects