Acta Crystallographica Section B

Structural Science

Volume 54, Part 5 (October 1998)


research papers



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Acta Cryst. (1998). B54, 663-670    [doi:10.1107/S0108768198000536]

A Reversible Non-disruptive Phase Transition Shown by the Zinc Iodide Dimethylformamide Complex ZnI2(dmf)2

R. A. Edwards, A. J. Easteal, O. P. Gladkikh, W. T. Robinson, M. M. Turnbull and C. J. Wilkins

Synopsis: ZnI2(dmf)2, zinc diiodide bis(dimethylformamide), shows a reversible non-disruptive phase change at 228 K. The space group changes from C2/c to P21/n, with two new conformationally different molecules arising at low temperature from rotation of one of the dmf ligands through angles of either +25 or -43°. Application of differential scanning calorimetry gives [Delta]H = 1.44 kJ mol-1.


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Structure factor file (CIF format) (158.5 kbytes)
Contains datablock str40b


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Structure factor file (CIF format) (235.0 kbytes)
Contains datablock stru2


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