Syntheses, structures and magnetic properties of two neutral coordination polymers of cobalt(II) containing a tailored aromatic diamine and pseudohalides as bridging units: Control of dimensionality by varying pseudohalide

Sumitava Khan, Subhasis Roy, Kishalay Bhar, Rajarshi Ghosh, Chia Her Lin, Joan Ribas, Barindra Kumar Ghosh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Two neutral coordination polymers of the types 2D [Co(bnzd)(dca) 2]n (1) and 3D [Co(bnzd)(N3)2] n (2) (bnzd = benzidine; dca = dicyanamide) have been synthesized and characterized. X-ray structural analyses reveal that each cobalt(II) center in 1 and 2 is hexacoordinated with octahedral geometry. Compound 1 has a 2D sheet structure with a (4,4) topology bridged through bidentate bnzd and double μ1,5 dca units. An extended 3D network structure in 2 is seen formed by μ1,3-azide and bidentate bnzd bridges. Variable-temperature magnetic susceptibility measurements of 1 and 2 show antiferromagnetic coupling among the cobalt(II) centers mediated through pseudohalide bridges.

Original languageEnglish
Pages (from-to)40-45
Number of pages6
JournalInorganica Chimica Acta
Volume398
DOIs
Publication statusPublished - 2013 Mar 24
Externally publishedYes

Keywords

  • Antiferromagnetism
  • Benzidine metal complexes
  • Cobalt(II) coordination polymers
  • Pseudohalide bridges
  • X-ray structure

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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