On the structure of cadmium iso­propyl­xanthate. Corrigendum

Tiekink, E.R.T.

doi:10.1107/S0108270100005771

addenda and errata

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 56| Part 9| September 2000| Page 1176

https://doi.org/10.1107/S0108270100005771

On the structure of cadmium isopropylxanthate. Corrigendum

Edward R. T. Tiekink ^a ^*

^aDepartment of Chemistry, The University of Adelaide, Australia 5005
^*Correspondence e-mail: edward.tiekink@adelaide.edu.au

(Received 14 January 2000; accepted 14 April 2000)

A full description for the structure of bis(O-isopropyldithiocarbonato)cadmium(II), [Cd(C₄H₇OS₂)₂], is presented. The structure comprises an interconnected network of 16-membered [–Cd—S—C—S–]₄ rings that arises from the presence of bidentate bridging ligands. The resultant layers are stacked along the a axis.

1. Comment

The structural chemistry of the binary zinc, cadmium and mercury 1,1-dithiolates {e.g. xanthate (⁻S₂COR), dithiocarbamate (⁻S₂CNR₂) and dithiophosphate [⁻S₂P(OR)₂]} is rich in its diversity with many varied motifs being found (Cox & Tiekink, 1997 ). Hence, isolated monomeric, dimeric and cyclotetrameric structures are known, as are linear, layer and three-dimensional polymeric arrays. Often the structures are quite complicated and open to interpretation owing to the variety of metal–ligand interactions. In this context, two

distinct motifs are known for [Cd(S₂COR)₂]. A square-planar geometry is found in the structure with R = CH₂CH₂OMe (Abrahams et al., 1988

), with weak Cd⋯S

interactions above and below the square plane. The other motif features tetrahedrally coordinated Cd, i.e. when R = Et (Iimura et al., 1972

) and R = Bu (Rietveld & Maslen, 1965

). The recently reported structure of [Cd(S₂COC₃H₇)₂] also conforms to this motif (Tomlin et al., 1999

). The structure of [Cd(S₂COC₃H₇)₂], (I

), is shown in Fig. 1

. Each Cd atom is tetrahedrally coordinated by four S atoms, each of which is derived from a bridging xanthate ligand; molecular dimensions are as given in the original report. The structure is best described as being based on a square of Cd atoms, with each edge defined by a bridging xanthate, as emphasized in Fig. 1

. The 16-membered [–Cd—S—C—S–]₄ rings thus formed are connected to neighbouring rings via bridging ligands to form a layer structure. Symmetry-related layers stack along the crystallographic a axis separated by hydrophobic interactions.

Supporting information

Crystal structure: contains datablock global. DOI: https://doi.org/10.1107/S0108270100005771/bk1523sup1.cif

Computing details top

References

Abrahams, B. F., Hoskins, B. F., Tiekink, E. R. T. & Winter, G. (1988). Aust. J. Chem. 41, 1117–1122. CSD CrossRef CAS Google Scholar
Cox, M. J. & Tiekink, E. R. T. (1997). Rev. Inorg. Chem. 17, 1–23. CrossRef CAS Google Scholar
Iimura, Y., Ito, T. & Hagihara, H. (1972). Acta Cryst. B28, 2271–2279. CSD CrossRef CAS IUCr Journals Web of Science Google Scholar
Johnson, C. K. (1976). ORTEPII. Report ORNL-5138. Oak Ridge National Laboratory, Tennessee, USA. Google Scholar
Rietveld, H. M. & Maslen, E. N. (1965). Acta Cryst. 18, 429–436. CSD CrossRef CAS IUCr Journals Web of Science Google Scholar
Tomlin, D. W., Cooper, T. M., Zelmon, D. E., Gebeyehu, Z. & Hughes, J. M. (1999). Acta Cryst. C55, 717–719. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar

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