Solvent effects on the structure of N-methylpyrrole as studied by nmr in nematic solvents
โ Scribed by N. Suryaprakash; A.C. Kunwar; C.L. Khetrapal
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 299 KB
- Volume
- 107
- Category
- Article
- ISSN
- 0009-2614
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๐ SIMILAR VOLUMES
Solvent effects on the nitrogen shieldings of N,N-dimethylacetamidine (1) were found to be extremely large for the imino group (about 120 ppm) and for the amino moiety (about 50 ppm). A detailed analysis of the solvent-induced variations revealed contributions from three large interactions. These ar
H NMR studies on thialene (cyclopenta[b]thiapyran) oriented in a nematic liquid crystalline phase are reported. The indirect spin-spin and direct dipolar Couplings and the chemical shifts between the protons are derived from the spectral analysis. The intra-ring proton-proton indirect couplings deri