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The crystals of dichlorobis(thiourea-S)cadmium, [CdCl2{SC(NH2)2}2] (I), and dibromobis(thiourea-S)cadmium, [CdBr2{SC(NH2)2}2], (II), are orthorhombic (Pmn21 and Pnam, respectively), while those of diiodobis(thiourea-S)cadmium, [CdI2{SC(NH2)2}2], (III), are monoclinic (P21/c). In all these compounds, two S atoms from two thiourea molecules and two X (X = halogen) atoms coordinate to Cd in tetrahedral arrangements. Crystal packing is mainly determined by N—H...X hydrogen bonds, but is different in the three cases. The average Cd—X distances increase from 2.541 (1) in (I) to 2.655 (3) in (II) and 2.782 (1) Å in (III), whereas the Cd—S distances in the three compounds are quite similar, their values being 2.517 (1), 2.522 (2) and 2.526 (2) Å (average) for (I), (II) and (III), respectively.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks 1, 2, 3, global

fcf

Structure factor file (CIF format)
Contains datablock 1

fcf

Structure factor file (CIF format)
Contains datablock 2

fcf

Structure factor file (CIF format)
Contains datablock 3

CCDC references: 130420; 130421; 130422

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