Sulphur-nitrogen chelating agents. VII. Five- and six-coordinate complexes of cobalt(II), nickel(II), and copper(II) with an S-N-S tridentate ligand
- 1 January 1969
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 22 (9) , 1817-1823
- https://doi.org/10.1071/ch9691817
Abstract
Mono-ligand complexes of the tridentate ligand N-(2-methylthiophenyl)- 2?-methylthiophenylmethyleneimine (SNS) of the type MX2(SNS) (M = Co, Ni, Cu; X = Cl, Br, I, or FCS) have been prepared. The electronic spectra indicate that the cobalt halide complexes are five-coordinate, whereas the complex Co(NCS)2- (SNS) and the nickel complexes are six- coordinate and polymeric. The copper complexes CuX2(SNS) (X = Cl, Br) are possibly five-coordinate. ��� The bis-complexes of nickel [Ni(SNS)2]X2 (X = ClO4, BF4) are high- spin but the complex [Co(SNS)2](ClO4)2 appears to be a rare example of a low-spin octahedral complex of cobalt(II).Keywords
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