ISSN:
1572-8854
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Summary The crystal structure of tetrakis(N,N′-diallylthiourea)nickel(II) iodide [Ni(C7H12N2S)4I2] has been determined by a three-dimensional X-ray analysis. FinalR, after anisotropic least-squares refinement, is 8·8%. The crystals are tetragonal (P4/n):a = 11·24(1),c = 15·43(1) Å,Z = 2. Ni(II) is on a 4-fold axis; the coordination around it is flattened pyramidal and involves four sulphur atoms from four diallylthiourea molecules (Ni-S = 2·221 Å). Ni(II) is out of the plane through the sulphur atoms by 0·40 Å. Two I- ions lie on opposite sides with respect to the nickel atom along the 4-fold axis, at distances Ni...I(1) = 3·74 Å, Ni...I(2) = 6·64 Å. The orientation of the allylthiourea molecules is determined mainly by a hydrogen bond formed by one nitrogen (N(1)) with the iodine which is nearer to the nickel.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01200422
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