Observation of31P−31P Indirect Spin−Spin Coupling in Copper−Bis(phosphine) Complexes by Two-Dimensional Solid-State NMR

1996 ◽  
Vol 35 (11) ◽  
pp. 3113-3116 ◽  
Author(s):  
Gang Wu ◽  
Roderick E. Wasylishen
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Spin Coupling ◽  
Two Dimensional ◽  
Phosphine Complexes ◽  
Spin Spin Coupling

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.

scholarly journals Spying on the boron–boron triple bond using spin–spin coupling measured from 11B solid-state NMR spectroscopy

2015 ◽  
Vol 6 (6) ◽  
pp. 3378-3382 ◽  
Author(s):  
Frédéric A. Perras ◽  
William C. Ewing ◽  
Theresa Dellermann ◽  
Julian Böhnke ◽  
Stefan Ullrich ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Triple Bond ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Solid State Nmr Spectroscopy ◽  
Spin Spin Coupling ◽  
Insight Into

Boron–boron J coupling constants provide new insight into the nature of the boron–boron triple bond.

scholarly journals Probing interactions through space using spin–spin coupling

2014 ◽  
Vol 43 (17) ◽  
pp. 6548-6560 ◽  
Author(s):  
Martin W. Stanford ◽  
Fergus R. Knight ◽  
Kasun S. Athukorala Arachchige ◽  
Paula Sanz Camacho ◽  
Sharon E. Ashbrook ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Spin Coupling ◽  
X Ray ◽  
Solid State Nmr Spectroscopy ◽  
X Ray Crystallography ◽  
B3lyp Calculations ◽  
Spin Spin Coupling

A series of eight 5-(TeAr)-6-(SePh)acenaphthenes (Ar = aryl) were prepared and structurally characterised by X-ray crystallography, solution and solid-state NMR spectroscopy and DFT/B3LYP calculations.

Local Packing Disorders in a Polymer Crystal by Two Dimensional Solid-State NMR

2007 ◽  
Vol 40 (19) ◽  
pp. 6789-6792 ◽  
Author(s):  
Toshikazu Miyoshi ◽  
Wei Hu ◽  
Hideaki Hagihara
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Two Dimensional ◽  
Polymer Crystal

ChemInform Abstract: Applications of Two-Dimensional Solid State NMR

ChemInform ◽  
1987 ◽  
Vol 18 (51) ◽  
Author(s):  
W. S. VEEMAN ◽  
A. P. M. KENTGENS ◽  
R. JANSSEN
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Two Dimensional

Two-dimensional solid-state NMR studies of crystalline poly(ethylene oxide): Conformations and chemical shifts

Polymer ◽  
2005 ◽  
Vol 46 (25) ◽  
pp. 11737-11743 ◽  
Author(s):  
D.J. Harris ◽  
T.J. Bonagamba ◽  
M. Hong ◽  
K. Schmidt-Rohr
Keyword(s):  
Solid State ◽  
Ethylene Oxide ◽  
Solid State Nmr ◽  
Chemical Shifts ◽  
Two Dimensional ◽  
Nmr Studies ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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