The effect of solvents on the electronic structure of symmetetrical polymethinecyanines 1H- and 13C-NMR Spectroscopic investigations
✍ Scribed by M. Wähnert; S. Dähne; R. Radeglia; M.A. Alperovich; I.I. Levkoev
- Publisher
- Elsevier Science
- Year
- 1977
- Weight
- 950 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0378-4487
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The transmission of electronic effects across the ferrocene analogues of chalcones [3‐aryl‐1‐ferrocenyl‐2‐propene‐1‐ones (series 1) and 1‐aryl‐3‐ferrocenyl‐2‐propene‐1‐ones (series 2)], as well as the conformations of both types of ferrocene analogues have been studied. The ferrocene an
## Abstract Carbon and proton NMR spectra of 3‐hydroxypyridine and its O‐methyl and N‐methyl derivatives have been analysed, and are compared with the spectra of the corresponding 2‐ and 4‐substituted pyridines. It is shown, that contrary to quantum chemical predictions and in agreement with chemic
The 1H, 13C and 15N NMR spectra of a series of 5-alkylthio-3-aryl-2-cyano-5-dialkylaminopenta-2,4-dienenitriles (4 and 5) with di †erent amino and aryl substituents were recorded. The NMR chemical shifts are correlated with electronic e †ects of the substituents on the donor side of the butadiene sy
and t3C-NMR spectra of compositionally homogeneous samples of chlorinated natural rubber containing 0.4-3.0 CI/C 5 have been investigated. In the samples of composition CI/C 5 ~< 1 there are no units containing > 1 chlorine atom, meaning that chlorine does not add to C-----C double bond. Simultaneou