Solution and solid‐state structural chemistry of tungsten pyrazolylborate π‐allyl complexes: 2D  183 W and  1 H NOESY NMR studies | Zendy

Pregosin Paul S. | Zendy; Macchioni Alceo | Zendy; Templeton Joseph L. | Zendy; White Peter S. | Zendy; Feng Shaoguang | Zendy

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Solution and solid‐state structural chemistry of tungsten pyrazolylborate π‐allyl complexes: 2D 183 W and 1 H NOESY NMR studies

Author(s) -

Pregosin Paul S.,

Macchioni Alceo,

Templeton Joseph L.,

White Peter S.,

Feng Shaoguang

Publication year - 1994

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.1260320707

Subject(s) - chemistry , two dimensional nuclear magnetic resonance spectroscopy , crystallography , octahedron , nmr spectra database , nuclear magnetic resonance spectroscopy , stereochemistry , solid state , solid state nuclear magnetic resonance , crystal structure , tungsten , boron , spectral line , nuclear magnetic resonance , organic chemistry , physics , astronomy

2D 1 H NOESY and inverse detected 183 W NMR measurements for the pseudo‐octahedral η 3 ‐allyl complexes W(CO) 2 (Tp′)(η 3 ‐CH 2 CHCDPh) (1) and W(CO) 2 (Tp′)(η 3 ‐CH 2 CHCHCH 3 ) (2), where Tp′ = hydridotris(3,5‐dimethylpyrazolyl)borate are reported. The observed solution structure for 1 differs from that found in the solid‐state via x‐ray diffraction (isomers can arise due to allyl rotation and/or coordination of either allyl face). Crystal data for 1: WC 26 H 31 BN 6 O 3 , space group P2 1/ c , a = 9.775(1) Å, b = 17.360(2) Å, c = 16.144(5) Å, β = 102.26(2)°, V = 2677(1) Å 3 , Z = 4.

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