Hydrothermal syntheses and structures of cobalt(II) and copper(II) coordination polymers with 1-tetrazole-phenyl-4-methylphosphonate ligands

Tiffany M. Smith Pellizzeri, Y. Z. Zhang, Jonathan Gooch, Adam Lau, Sharde McLeish, Kim R. Dunbar, Jon Zubieta

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Hydrothermal reactions of copper(II) and cobalt(II) salts with 1-tetrazole-phenyl-4-methylphosphonic acid yielded the coordination polymers [Cu(H2O)(HO3PCH2C6H4CN4)]·H2O (1·H2O) and [Co(H2O)2(HO3PCH2C6H4CN4H)2]·2H2O (2·2H2O). Compound 1·H2O is two dimensional and is constructed from chains of trans-corner sharing, ‘4+2’ axially distorted {CuO4N2} octahedra. These chains are linked through the organic tethers of the ligands in the doubly deprotonated form{HO3PCH2C6H4CN4}2−to propagate in two-dimensions. In contrast, compound 2·2H2O is one-dimensional and features {CoO4N2} octahedra linked through pairs of ligands in the singly deprotonated form {HO3PCH2C6H4CN4H}−1, i.e. with the tetrazole terminus in the neutral form. The magnetic properties of compound 1·H2O reflect the structure where the Cu(II) ions are bridged by syn-syn phosphate and tetrazolate Cu-N-N-Cu bridges, with the former linkage likely to transfer ferromagnetic coupling whereas the latter leads to antiferromagnetic coupling. The two competing pathways lead to negligible overall coupling.

Original languageEnglish (US)
Pages (from-to)109-115
Number of pages7
JournalInorganica Chimica Acta
Volume458
DOIs
StatePublished - 2017

Keywords

  • Metal-organophosphonate
  • Mixed tetrazole/phosphonic acid ligand
  • Solid state coordination chemistry
  • cobalt(II)-tetrazole-phosphonate chain
  • copper(II)-tetrazolate-phosphonate network

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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