Applications of two-dimensional phosphorus-31 CP/MAS NMR techniques for studying metal phosphine complexes in the solid state

1992 ◽  
Vol 11 (10) ◽  
pp. 3242-3248 ◽  
Author(s):  
Gang Wu ◽  
Roderick E. Wasylishen
Keyword(s):  
Solid State ◽  
Mas Nmr ◽  
Two Dimensional ◽  
Phosphine Complexes ◽  
Nmr Techniques ◽  
Cp Mas Nmr

Synthesis, solid state 31P CP-MAS NMR infrared and Raman studies of mercury(II) complexes of 1,3,5-triaza-7-phosphaadamantane (PTA)

1989 ◽  
Vol 67 (8) ◽  
pp. 1319-1323 ◽  
Author(s):  
Elmer C. Alyea ◽  
Keith J. Fisher ◽  
Steve Johnson
Keyword(s):  
Solid State ◽  
Chemical Shifts ◽  
Mas Nmr ◽  
Water Soluble ◽  
Coupling Constants ◽  
Nitrate Complex ◽  
Nmr Studies ◽  
Phosphine Complexes ◽  
Water Soluble Phosphine ◽  
Cp Mas Nmr

Insoluble mercury(II) complexes of a water-soluble phosphine, 1,3,5-triaza-7-phosphaadamantane (PTA), have been studied by solid state 31P CP-MAS NMR, infrared and Raman spectroscopies. Complexes of the type (PTA)HgX2 show larger coordination chemical shifts but similar J(31P—199Hg) coupling constants to those previously observed for similar trialkylphosphine complexes. These complexes all appear to be dimeric or polymeric. The nitrate complex of the form (PTA)2Hg(NO3)2 has also been isolated and complexes of the type (PTA)4Hg2+ are shown to exist. Keywords: mercury(II) phosphine complexes, solid state 31P NMR studies.

scholarly journals Interactions of Fullerenes and Calixarenes in the Solid State Studied with 13C CP-MAS NMR

1994 ◽  
Vol 116 (15) ◽  
pp. 6965-6966 ◽  
Author(s):  
Rene M. Williams ◽  
Jurriaan M. Zwier ◽  
Jan W. Verhoeven ◽  
Gerda H. Nachtegaal ◽  
Arno P. M. Kentgens
Keyword(s):  
Solid State ◽  
Mas Nmr ◽  
Cp Mas Nmr ◽  
13C Cp Mas Nmr

A solid-state 31P NMR study of 1:1 silver–triphenylphosphine complexes — Interpretation of 1J(107,109Ag,31P) values,

2009 ◽  
Vol 87 (7) ◽  
pp. 1090-1101 ◽  
Author(s):  
Fu Chen ◽  
Se-Woung Oh ◽  
Roderick E. Wasylishen
Keyword(s):  
Solid State ◽  
Spin Coupling ◽  
Coupling Mechanism ◽  
P Values ◽  
X Ray Crystallography ◽  
Phosphine Complexes ◽  
Nmr Study ◽  
Fermi Contact ◽  
Spin Spin Coupling ◽  
Cp Mas Nmr

High-resolution solid-state 31P NMR spectroscopy was used to investigate a series of 1:1 silver–triphenylphosphine complexes, [Ph3PAgX]n, where X is a monovalent anion and n = 1, 2, 3, 4, or ∞. The 31P CP MAS NMR spectra reveal the number of distinct phosphorus sites in these complexes as well as the |1J(109Ag,31P)| values, which range from 401 ± 10 Hz (X = N3–) to 869 ± 10 Hz (X = SO3CF3–). The data obtained here and in earlier investigations indicate that |1J(109Ag,31P)| values for silver–tertiary phosphine complexes decrease as Ag–P bond lengths increase. This experimental conclusion is supported by DFT calculations, which also indicate that the Fermi-contact mechanism is the only important spin–spin coupling mechanism for 1J(109Ag,31P) in these complexes. In addition, the crystal structure of a silver–triphenylphosphine trifluoroacetate tetramer was determined using X-ray crystallography, and the structure of a silver–triphenylphosphine chloride tetramer was reinvestigated.

Selective polarization inversion in solid state high-resolution CP MAS NMR

1988 ◽  
Vol 77 (2) ◽  
pp. 343-347 ◽  
Author(s):  
Wu Xiaoling ◽  
Zhang Shanmin ◽  
Wu Xuewen
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Mas Nmr ◽  
Cp Mas Nmr
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