Synthesis, crystal and molecular structure of the novel complex [dinitrato{N,N-bis(1-methylbenzimidazol-2-ylmethyl)methylamine}[cobalt(II)

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Co(NO3)2·6H2O reacts with N,N-bis(1-methylbenzimidazol-2-ylmethyl)methylamine (Me2L) in MeOH/ Et2O solution at ca. 5°C, yielding a novel, penta-coordinate complex, formulated as [Co(NO3)2(Me2L)], which was characterized by means of structural, spectroscopic and magnetic measurements. The Co atom is coordinated in distorted trigonal bipyramidal geometry by three N and two O atoms. The ligand Me2L is coordinated in a facial mode and two coordinated O atoms from the nitrato ligands are in cis-positions.

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