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  • Title: Synthesis, spectroscopy, and characterization of some bis-nicotinamide metal(II) dihalide complexes.
    Author: Ataç A, Yurdakul Ş, Berber S.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2011 Oct 15; 81(1):684-9. PubMed ID: 21782494.
    Abstract:
    We report synthesis of six new bis-nicotinamide metal(II) dihalide complexes [M(nia)(2)Cl(2); M = Mn, Co; nia:nicotinamide, M(nia)(2)Br(2); M = Mn, Hg; M(nia)(2)I(2); M = Cd, Cu], and their characterization by combining infrared spectroscopy with density functional theory (DFT) calculations. Infrared spectra indicate that ring-nitrogen is the active donor cite, and the atomic structure of the complexes is determined to be polymeric octahedral or distorted polymeric octahedral. Spin polarized electronic ground state is obtained for Mn, Co, and Cu halide complexes. The colors of the complexes also support the conclusion of octahedral coordination around the metal atoms, in agreement with DFT results.
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