Manganese(II) complex of the 'tripod' ligand tris(2-benzimidazolylmethyl)amine. Seven-coordinate Mn(II) in the crystal structure

Aderemi R. Oki, Pardhiva Gogineni, Michael Yurchenko, Victor G. Young

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Mn(II) coordination compounds with tripodal N,N,N-tris-(2-benzimidazolylmethyl)amine (TMBA) have been synthesized and spectro-scopically characterized. The crystal structure of [Mn(TMBA) (NO3) (CH3OH)] (NO3) H2O has been determined. The compound crystallizes in the monoclinic space group P21/c with four formula units in a cell of dimensions a = 11.3825(2), b = 13.4338(2), c = 17.9548(3) Å, β = 100.026(1)°; final R = 0.0299, based on 4745 independent reflections. The structure indicates the complex ion has a heptacoordinate metal center with a coordination polyhedron best described as a capped octahedron. The octahedron is defined by three nitrogen atoms from the benzimidazole moieties (N(1A), N(1C) and N(1B)), the oxygen atom of the methanol O(41), and two oxygen atoms from the coordinating nitrate group O(11) and O(12). The capping ligating atom is the bridging N(1) from the TMBA ligand with a longer Mn-N distance of 2.551(1) Å.

Original languageEnglish (US)
Pages (from-to)279-283
Number of pages5
JournalInorganica Chimica Acta
Volume257
Issue number2
DOIs
StatePublished - Apr 30 1997

Keywords

  • Crystal structures
  • Manganese complexes
  • Seven-coordinate complexes
  • Tripodal ligand complexes

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