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Original Articles

Synthesis and X-Ray Structures of Zinc(II) and Cadmium(II) Heteroleptic Complexes Involving 1,1-Dithiolate and N-Donor Ligands

, , , &
Pages 1475-1488 | Received 30 Oct 2013, Accepted 06 Mar 2014, Published online: 15 Sep 2014
 

GRAPHICAL ABSTRACT

Abstract

A series of zinc(II) and cadmium(II) complexes, involving a combination of S–donor (xanthates and dithiophosphates) and N-donor (1,10-phen = 1,10-phenanthroline, 2,2′–bipy = 2,2′-bipyridine) ligands, of the composition [Cd(S2COnPr)2(2,2′-bipy)] (1), [Cd(S2COnPr)2(1,10-phen)] (2), [Cd(S2P(OEt)2)2(2,2′-bipy)] (3), [Cd(S2P(OEt)2)2(1,10-phen)] (4), [Zn(S2COnPr)2(2,2′-bipy)] (5), [Zn(S2COnPr)2(1,10-phen)] (6), [Zn(S2P(OEt)2)2(2,2′-bipy)] (7), and [Zn(S2P(OEt)2)2(1,10-phen)] (8) was prepared. The complexes (18) were characterized by elemental analysis and single-crystal X-ray analysis. X-ray structures revealed that the coordination geometries vary from octahedral (complexes 14), through square-pyramidal (complexes 5 and 6) to tetrahedral (complexes 7 and 8), depending on a combination of the central metal atoms and the corresponding S-donor and N-donor ligands. Similarities and discrepancies among the individual molecular structures as well as noncovalent contacts stabilizing crystal structures are discussed in more detail.

ACKNOWLEDGMENT

We would like to thank to Prof. Steinar Husebye (Department of Chemistry, University of Bergen, Norway) for valuable discussion.

SUPPLEMENTAL MATERIAL

Supplementary data for this article can be accessed on the publisher's website, www.tandfonline.com/gpss

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