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Synthesis, Characterization and Crystal Structure Determination of a Hepta-coordinated Cadmium(II) Complex with Thiocyanato-bridges

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Abstract

A new cadmium(II) complex [(C28H24N6)Cd(SCN)2]2(CH3OH)2 (1) has been synthesized and characterized by IR, UV spectra, TG-DTA technique and single crystal X-ray diffraction analysis. The crystallographic data for compound 1: triclinic P1¯, a = 9.630(2) Å, b = 11.123(3) Å, c = 15.396(4) Å, α = 106.93(1)°, β = 91.60(1)°, γ = 99.99(1)°, V = 1,548.5(6) Å3, Z = 1, Dc = 1.512 mg/m3, F(000) = 716, R 1 = 0.0332, wR 2 = 0.0907. The molecule contains a symmetrical dinuclear unit in which two Cd(II) ions are double bridged by two di-μ-1,3-SCN− anoins with a cadmium–cadmium separation of 6.48 Å. Each Cd(II) ion is seven-coordinated with six nitrogen atoms and a sulfur atom to form a monocapped trigonal prism coordination geometry. In addition, the molecule is further connected by multiform intermolecular C–H···π, π···π interactions and hydrogen bonds to form a three-dimensional supramolecular structure.

Graphical Abstract

A hepta-coordinated Cd(II) complex which exhibits a distorted a monocapped trigonal prism coordination geometry has been achieved by using bisbidentate Schiff-base ligand and thiocyanate anion.

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Acknowledgments

We are grateful for financial support from the National Natural Science Foundation of China (No. 20701012), the Foundation of the Education Ministry of China (No. 207068) and the Education Department of Henan Province of China (No. 2007150011, No. 2008B150002).

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Authors and Affiliations

  1. Molecular and Crystal Engineering Institute, School of Chemistry and Chemical Engineering, Henan University, 475004, Kaifeng, People’s Republic of China

    Dongbin Dang, Jide Sun, Yan Bai, Hui Gao & Weili Shang

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  1. Dongbin Dang
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  2. Jide Sun
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  3. Yan Bai
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  4. Hui Gao
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  5. Weili Shang
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Correspondence to Yan Bai.

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Dang, D., Sun, J., Bai, Y. et al. Synthesis, Characterization and Crystal Structure Determination of a Hepta-coordinated Cadmium(II) Complex with Thiocyanato-bridges. J Chem Crystallogr 39, 683–687 (2009). https://doi.org/10.1007/s10870-009-9555-7

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