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A revision of the structure of (bipyridyl-N,N')-dicyanoplatinum(II)

Connick, William B. and Henling, Lawrence M. and Marsh, Richard E. (1996) A revision of the structure of (bipyridyl-N,N')-dicyanoplatinum(II). Acta crystallographica. Section B, Structural science, 52 (5). pp. 817-822. ISSN 0108-7681. doi:10.1107/S0108768196002674.

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In a previous X-ray crystallographic study of crystals of Pt(bpy)(CN)_2 (bpy = 2,2'-bipyridine) the planar molecules were reported to be exactly eclipsed, stacked directly on top of one another with a spacing of 3.33 Å so as to form a linear Pt· · ·Pt· · ·Pt chain. A reinvestigation shows this structure to be incorrect. The presence of weak intermediate layer lines indicates that the repeat distance along the stacking direction is 6.66 Å rather than 3.33 Å. Successive molecules within the stack are rotated by 180° and the resulting Pt-atom chain is slightly zigzag with a Pt· · ·Pt· · ·Pt angle of 168.6 (1)°. The implications are discussed of the determination and refinement of an apparently satisfactory, although grossly wrong, structure that was based on an incorrect unit cell and an incorrect space group.

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Additional Information:© 1996 International Union of Crystallography. Received 27 November 1995; accepted 22 February 1996. We thank H. B. Gray, K. I. Hardcastle and V. M. Miskowski for helpful discussions. This work was supported by NSF CHE-9311587 (H.B.G.).
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Caltech Division of Chemistry and Chemical Engineering9163
Issue or Number:5
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:73670
Deposited By: Tony Diaz
Deposited On:26 Jan 2017 20:04
Last Modified:11 Nov 2021 05:20

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