Influence of the phosphorus lone pair on coupling constants in vinylphosphines | Zendy

Mitchell Terence N. | Zendy; HeescheWagner Kerstin | Zendy; Belt HeinzJoachim | Zendy

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Influence of the phosphorus lone pair on coupling constants in vinylphosphines

Author(s) -

Mitchell Terence N.,

HeescheWagner Kerstin,

Belt HeinzJoachim

Publication year - 1991

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.1260290115

Subject(s) - chemistry , lone pair , coupling constant , phosphorus , crystallography , coupling (piping) , stereochemistry , computational chemistry , organic chemistry , molecule , quantum mechanics , physics , mechanical engineering , engineering

Multinuclear NMR data are presented and discussed for a variety of vinylphosphines in which the vinyl group bears one, two or three substituents; these include organic and trimethylstannyl residues. The orientation of the phosphorus lone pair can be determined from two‐bond phosphorus‐carbon coupling constant values. The magnitudes of the 3 J (PCCSn), 4 J (PCCSnC) and 5 J (PCCSnCH) coupling constants are clearly determined by a throughspace interaction when P and C are in a cis configuration.

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