ISSN:
0749-1581
Keywords:
Tertiary phosphine derivatives
;
Metal complexes
;
Solid-state
;
31P NMR spectra
;
Solvation effects
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
An investigation of bis(diphenylphosphino)methane dioxide (dppm dioxide), cis-[PtCl2(PPh3)2] cis-[PtCl2{P(p-C6H4Cl)3}2] and cis-[PtBr2(PPh3)2] by solid-state CP/MAS 31P NMR spectroscopy, x-ray powder diffraction and 1H, 13C{1H} and 31P{1H} solution NMR methods illustrates the sensitivity of the appearance of solid-state NMR spectra to solvation effects in crystalline solids. The presence or absence of solvent of crystallization and the slow loss of solvent of crystallization from a sample over time are clearly manifested in the solid-state NMR spectra as the local site symmetry in the solid is changed. These effects have led workers to report different data for a given compound when, in fact, different types of solvates were investigated.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260310504
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