Abstract
Two ternary complexes of manganese(II) indole-2-carboxylate (2-IC−) or isoquinolinecarboxylate (IQC−) with 1,10-phenanthroline (phen) in methanol or in dimethylacetamide (DMA) were synthesized and studied by X-ray diffraction and IR spectra. [Mn(C9H6NO2)2(C12H8N2)2]·CH4O (1) crystallizes in the triclinic space group P-1 with cell parameters of a = 10.548(2) Å, b = 14.168(3) Å, c = 14.580(3) Å, α = 62.35(2)°, β = 69.16(2)°, γ = 78.61(2)°, V = 1802.4(6) Å3 and Z = 2; [Mn(C10H6NO2)2(C12H8N2)].C4H9NO (2) crystallizes in the monoclinic space group P21/a with cell parameters of a = 15.304(5) Å, b = 12.871(5) Å, c = 17.421(5) Å, β = 114.39(1), V = 3125(2) Å3 and Z = 4. In 1, Mn is six-coordinate by two bidentate phen ligands and two 2-IC− ligands and exhibits a very distorted octahedral geometry. This complex is solvated by methanol involved in hydrogen bonding. In 2, Mn atom is surrounded by one bidentate phen ligand and two bidentate IQC− ligands. The complex exhibits a distorted octahedral geometry around the MnII atom. The crystal structure is completed by a disordered DMA solvate molecule. The IR spectra of both compounds are slightly different in the range 4000–2400 cm−1 which may be attributed to hydrogen bond lack in 2.
Index Abstract
Two ternary complexes of manganese(II) indole-2-carboxylate (2-IC−) or isoquinolinecarboxylate (IQC−) with 1,10-phenanthroline (phen) in methanol or in dimethylacetamide (DMA) were synthesized, their X-ray crystal structures were determined and some IR spectra were recorded.
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Lemoine, P., Viossat, V., Dayan, E. et al. Synthesis, Crystal Structure and IR Spectra of Complexes of Mn(II) by Indole-2-Carboxylic or Isoquinoline-1-Carboxylic Acids and 1,10-Phenanthroline. J Chem Crystallogr 40, 852–858 (2010). https://doi.org/10.1007/s10870-010-9753-3
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DOI: https://doi.org/10.1007/s10870-010-9753-3