Solid-state distortions of nominally square-planar palladium and platinum (R3P)2MX2 complexes as determined by a combination of carbon-13 {proton} and phosphorus-31{proton} NMR spectroscopy
| Autor: | Allen R. Palmer, Jeffrey A. Rahn, Daniel J. O'Donnell, John H. Nelson |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
chemistry.chemical_classification
Chemical shift Carbon-13 Inorganic chemistry Order (ring theory) chemistry.chemical_element Nuclear magnetic resonance spectroscopy Inorganic Chemistry NMR spectra database Crystallography chemistry Phosphorus-31 NMR spectroscopy Physical and Theoretical Chemistry Inorganic compound Palladium |
| Zdroj: | Inorganic Chemistry. 28:2631-2635 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/ic00312a025 |
| Popis: | Phosphorus-31 and carbon-13 NMR spectra have been obtained for a series of 20 (R{sub 3}P){sub 2}MX{sub 2} complexes (R{sub 3}P = MePh{sub 2}P and Me{sub 2}PhP; M = Pd, Pt; X = Cl, Br, I, CN, N{sub 3}) in the solid state by cross-polarization and magic-angle-spinning (CP/MAS) techniques. Comparison of these data with spectral data obtained at 300 K in CDCl{sub 3} solutions was made in order to investigate the influence of local symmetry on {sup 31}P and {sup 13}C chemical shifts in the solid state. It was found that most of these compounds, which have regular square-planar geometries in solution, are distorted in the solid state. The solid-state distortions are evidenced by additional {sup 31}P and {sup 13}C resonances in the CP/MAS spectra as compared to the solution spectra. The nature and degree of these distortions are discussed. 25 refs., 2 figs., 6 tabs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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