13C and 77Se NMR of some organometallic derivatives with Ti, Zr and Hf
✍ Scribed by P. Granger; B. Gautheron; G. Tainturier; S. Pouly
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 328 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
C and 77Se NMR was carried out on dicyclopentadienyl derivatives of Ti, Zr and W with selenium bonded directly to the metal. Although '"C NMR is not sensitive to different substitution, 77Se NMR is valuable and refiects the influence of the different organic substituents and the nature of the metals bonded to the selenium atom.
📜 SIMILAR VOLUMES
## Abstract ^77^Se and ^13^C chemical shift of 19 1,2,3‐selenadiazoles are discussed in terms of substituent effects and conforma‐tional behaviour of the molecules. It is shown that the ^77^Se chemical shifts of such compounds are suitable tools for chiral discrimination in diastereomeric compounds
## Abstract The results of ^13^C and (when pertinent) ^77^Se NMR spectra of thiopene and selenophene derivatives containing exocyclic selenium atoms are presented. The ^77^Se spectra show an interaction between nitro or carbonyl groups and selenium when they are __ortho__ to each other. The measure
## Abstract A series of substituted tetraselenafulvalenes (TSeFs) was studied in solution using ^1^H, ^13^C and ^77^Se NMR spectroscopy. Chemical shifts and heteronuclear coupling constant values were determined and assigned. Novel two‐dimensional H(Se)C and H(C)Se triple‐resonance correlation expe
## Abstract The ^13^C, ^15^N and ^77^Se NMR data (chemical shifts and coupling constants) of some cycloakeno‐1,2,3‐selenadiazoles are presented. Extremely large ^77^Se chemical shifts are found. ^15^N, ^77^Se coupling constants, obtained at natural abundance, are reported for the first time. Strong