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Investigation of solvation effects on the solid‐state 31 P NMR spectra of tertiary phosphine derivatives and metal complexes
Author(s) -
Davies Julian A.,
Dutremez Sylvain G.
Publication year - 1993
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260310504
Subject(s) - chemistry , nmr spectra database , phosphine , crystallization , solvation , nuclear magnetic resonance spectroscopy , crystallography , solid state nuclear magnetic resonance , solvent , carbon 13 nmr , metal , crystal structure , spectral line , stereochemistry , nuclear magnetic resonance , organic chemistry , physics , astronomy , catalysis
An investigation of bis(diphenylphosphino)methane dioxide (dppm dioxide), cis ‐[PtCl 2 (PPh 3 ) 2 ] cis ‐[PtCl 2 {P( p ‐C 6 H 4 Cl) 3 } 2 ] and cis ‐[PtBr 2 (PPh 3 ) 2 ] by solid‐state CP/MAS 31 P NMR spectroscopy, x‐ray powder diffraction and 1 H, 13 C{ 1 H} and 31 P{ 1 H} 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.