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Crystal and Molecular Structure of Trichloro-oxobis(triphenylphosphineoxide)tungsten(V), (1). Single-crystal Electron Spin Resonance Spectra of (1) and Tetraphenylarsonium Aquatetrachloro-oxotungstate(V) and Electronic Structures of these and Some Related Molybdenum(V) Compounds

DOI: 10.1039/DT9800001475

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1475 - 1481 (1980)

Update date:2022-08-15

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Authors:

Hill, Lesley H.Hill, Lesley H.

Howlader, Nepal C.Howlader, Nepal C.

Mabbs, Frank E.Mabbs, Frank E.

Hursthouse, Michael B.Hursthouse, Michael B.

Malik, K. M. AbdulMalik, K. M. Abdul

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Article abstract of DOI:10.1039/DT9800001475

The crystal structure of (1) has been determined by X-ray crystallographic methods.The compound crystallises in the monoclinic space group C2/c with a=14.002(6), b=13.059(7), c=19.158(8) Angstroem, β=96.00(3)o, and Z=4.The molecule is disordered over two orientations in the crystal and possesses a crystallographically imposed C2 axis passing through the W atom.The disordered atoms are Cl(2) and O(2).Molecular dimensions are W-Cl(1), 2.369(4); W-O(1), 2.088(11); W-Cl(2), 2.242(10); and W-O(2), 2.053(22) Angstroem.Single-crystal e.s.r. spectra of (1) diluted in the niobium analogue gave g1=1.739 +/- 0.002, g2=1.763 +/- 0.002, and g3=1.770 +/- 0.002, whilst a similar study on gave g<*>=1.806 +/- 0.001 and g<*>=1.765 +/- 0.001.The e.s.r. data for , , and 2> are discussed in terms of an angular-overlap model for their electronic structures.

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