Synthesis and characterisation of cobalt(III) complexes with 1,1-dimethylethylene-diamine (1,1-dmen) and 1,2-propanediamine (pn)

Samiran Mitra, Dilip Kumar Dey, Nirmal Kumar Karan, Georgina Rosair

Research output: Contribution to journalArticle

Abstract

Two stable diamine complexes [Co(1,1-dmen)2(NCS)2]SCN · (H2O)1.5 (1) and [Co(pn)2(NCS)2]SCN · (H2O)1.5 (2) have been synthesised and characterised by elemental analysis, i.r. and electronic spectra and t.g.a. The structure of (1) has been confirmed by single-crystal X-ray diffraction and reveals that the cobalt complex has octahedral geometry and consists of two crystallographically independent cations, both situated on centres of inversion. In the crystal structure of (1), free H2O molecules and SCN- ions form an extensive hydrogen bonding network with the cation. It is an ordered pseudo-polymorph of a previous structure determination. Both (1) and (2) are diamagnetic.

Original languageEnglish
Pages (from-to)613-616
Number of pages4
JournalTransition Metal Chemistry
Volume27
Issue number6
DOIs
Publication statusPublished - Sep 2002

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