Structural diversity in pseudohalide complexes of cadmium(II) with N-methylthiourea (Metu): Polymeric [Cd(Metu)2(NCS)2]n versus monomeric [Cd(Metu)2(CN)2] |
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| Authors: | Saeed Ahmad Mohammed Fettouhi Thierry Roisnel Mshari A Alotaibi Abdulrahman I Alharthi Muhammad Riaz Malik |
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| Institution: | 1. Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabiasaeed_a786@hotmail.com;3. Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia;4. Centre de Diffractométrie X (CDIFX), Institut des Sciences Chimiques de Rennes UMR6226 CNRS – Université de Rennes 1, Rennes Cedex, France;5. Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia;6. Department of Chemistry, Government Gordon College, Rawalpindi, Pakistan |
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| Abstract: | Cadmium(II) complexes, catena-polybis(thiocyanato-κN)bis(N-methylthiourea)cadmium(II)], Cd(Metu)2(NCS)2]n (1) and dicyanidobis(N-methylthiourea)cadmium(II), Cd(Metu)2(CN)2] (2) were prepared and their structures were determined by single crystal X-ray analysis. In 1, the cadmium(II) ion is bound to four sulfur atoms of bridging Metu ligands and two nitrogen atoms of thiocyanate adopting a distorted octahedral environment. In 2, the geometry around cadmium is distorted tetrahedral attained by two cyanide ions and two methylthiourea molecules bound through the sulfur atoms. The crystal structures of both complexes show intra and intermolecular hydrogen bonding interactions. The complexes were also characterized by IR and NMR spectroscopy and the spectroscopic data were discussed in terms of the nature of bonding. |
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| Keywords: | Cadmium thiocyanate cyanide N-methylthiourea crystal structure |
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