Diazine based ligand supported CoII3 and CoII4 coordination complexes: role of anions

Yeasin Sikdar, Ranadip Goswami, Ritwik Modak, Megha Basak, María José Heras Ojea, Mark Murrie, Sanchita Goswami

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4 Citations (Scopus)


We report the synthesis and characterisation of a family of three CoII4 and two CoII3 complexes from a symmetrical diazine ligand, H2hyda = N,N-bis(3-methoxy salicylidene)hydrazine. The metallic skeletons of all complexes reveal a nearly linear arrangement of CoII centers. The present results highlight the profound influence of anions on the structural outcome of a complex. Furthermore, distortion imposed by the twisted nature of the diazine-based ligand depends on the use of associated anions which results in triple helical CoII4 and double helical CoII3 entities. The CoII ions in complexes 1-3 are antiferromagnetically coupled leading to an S = 0 ground state. In contrast, complexes 4 and 5 exhibit a magnetic ground state, but exhibit different behaviours at low temperatures due to differences in crystal packing and hence intermolecular interactions.

Original languageEnglish
Pages (from-to)17587-17596
Number of pages10
JournalNew Journal of Chemistry
Issue number21
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry


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