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Synthesis and Structural Characterization of Dibromidobis(N,N′-dimethylthiourea-κS)cadmium(II) and Diiodidobis(N,N′-dimethylthiourea-κS)cadmium(II)

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Abstract

Cadmium(II) complexes, dibromidobis(N,N′-dimethylthiourea-S)cadmium(II), [Cd(Dmtu)2Br2] (1) and diiodidobis(N,N′-dimethylthiourea-S)cadmium(II), [Cd(Dmtu)2I2] (2), have been prepared and their structures have been determined by X-ray crystal structure analysis. Compound 1 crystallized in the monoclinic space group C2/c, and the metal ion is situated on a twofold rotation axis. Compound 2 also crystallized in a monoclinic space group, P21/c, but here the molecules have no crystallographic symmetry. In both compounds the cadmium atom is bonded to two halide ions and to two dimethylthiourea molecules through the sulfur atoms in a tetrahedral environment. The molecules are linked via N–H⋯Halide hydrogen bonds to form infinite one-dimensional chains in 1 and infinite two dimensional networks in 2. The complexes were also characterized by IR and NMR spectroscopy and the data are consistent with the structures of the compounds.

Graphical Abstract

Cadmium(II) complexes, dibromidobis(N,N′-dimethylthiourea-S)cadmium(II), [Cd(Dmtu)2Br2] (1) and diiodidobis(N,N′-dimethylthiourea-S)cadmium(II), [Cd(Dmtu)2I2] (2), have been prepared and their structures have been determined by X-ray crystal structure analysis. In both compounds the cadmium atom is bonded to two halide ions and to two dimethylthiourea molecules through the sulfur atoms in a tetrahedral environment. The molecules are linked via N–H⋯Halide hydrogen bonds to form infinite one-dimensional chains in 1 and infinite two dimensional networks in 2. The complexes were also characterized by IR and NMR spectroscopy and the data are consistent with the structures of the compounds.

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Authors and Affiliations

  1. Department of Chemistry, University of Engineering and Technology, Lahore, 54890, Pakistan

    Saeed Ahmad

  2. Institute of Physics, University of Neuchâtel, rue Emile-Argand 11, CH-2009, Neuchâtel, Switzerland

    Muhammad Altaf & Helen Stoeckli-Evans

  3. Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia

    Anvarhusein A. Isab

  4. Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan

    Muhammam Riaz Malik, Saqib Ali & Shaukat Shuja

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  1. Saeed Ahmad
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  2. Muhammad Altaf
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  3. Helen Stoeckli-Evans
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  4. Anvarhusein A. Isab
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  5. Muhammam Riaz Malik
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  6. Saqib Ali
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  7. Shaukat Shuja
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Correspondence to Saeed Ahmad.

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Ahmad, S., Altaf, M., Stoeckli-Evans, H. et al. Synthesis and Structural Characterization of Dibromidobis(N,N′-dimethylthiourea-κS)cadmium(II) and Diiodidobis(N,N′-dimethylthiourea-κS)cadmium(II). J Chem Crystallogr 41, 1099–1104 (2011). https://doi.org/10.1007/s10870-011-0052-4

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  • DOI: https://doi.org/10.1007/s10870-011-0052-4

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