A Novel Tridentate-N,N,S Iminothiolate Ligand That Leads to the Formation of S-Bridged Dinickel(II) and Tetracobalt(III) Structures

Asako Igashira-Kamiyama, Masayuki Saito, Takumi Konno

doi:10.1246/cl.2009.1168

A Novel Tridentate-N,N,S Iminothiolate Ligand That Leads to the Formation of S-Bridged Dinickel(II) and Tetracobalt(III) Structures

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Asako Igashira-Kamiyama

Department of Chemistry, Graduate School of Science, Osaka University
Masayuki Saito

Department of Chemistry, Graduate School of Science, Osaka University
Takumi Konno

Department of Chemistry, Graduate School of Science, Osaka University

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<jats:title>Abstract</jats:title> <jats:p>Treatment of dicyandiamide, 2-aminoethanethiol hydrochloride, and NiCl2·6H2O in water gave an S-bridged dinickel(II) complex, [Ni2(L)2]Cl2 ([1]Cl2), which contains novel tridentate-N,N,S iminothiolate ligands with a biguanide moiety (L−). Another S-bridged complex containing L−, [Co{Co(L)2}3]6+ ([2]Cl6), which has the first example of a hexol S-bridged structure, was obtained by the stepwise reaction of [1]Cl2 with Na4edta and CoCl2·6H2O in water.</jats:p>