Synthesis and structures of cadmium(II) complexes of a series of multinucleating N/S donor ligands |
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| Authors: | Tanya K Ronson Harry Adams Lindsay P Harding Ross W Harrington William Clegg Michael D Ward |
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| Institution: | 1. Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK;2. Department of Chemistry and Biological Sciences, University of Huddersfield, Huddersfield, HD1 3DH, UK;3. School of Natural Sciences (Chemistry), Newcastle University, Newcastle upon Tyne, NE1 7RU, UK;4. CCLRC Daresbury Laboratory, Warrington WA4 4AD, UK |
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| Abstract: | The coordination chemistry of a series of bis-bidentate ligands with cadmium(II) ions has been investigated. The ligands, containing two N,S-donor chelating (pyrazolyl/thioether) fragments, have afforded complexes of a variety of structural types (dinuclear M2L2 ‘mesocate’ complexes, a one-dimensional chain coordination polymer and a simple mononuclear complex) according to whether the bis-bidentate ligands act as bridges spanning two metal ions, or a tetradentate chelate to a single metal ion. The p-phenylene and m-biphenyl spaced ligands L1 and L3 form dinuclear M2L2 complexes where the ligands are arranged in a ‘side-by-side’ fashion. In contrast the m-phenylene spaced ligand L2 forms a one-dimensional coordination polymer where the ligands adopt a highly folded conformation. The 1,8-naphthalene spaced ligand L4 adopts a tetradendate chelating mode and affords a simple mononuclear complex. |
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| Keywords: | Cadmium Coordination chemistry Crystal structure Mesocate Coordination polymer |
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