Synthesis,Structure and Light‐Harvesting Properties of Some New Transition‐Metal Dithiocarbamates Involving Ferrocene |
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Authors: | Abhinav Kumar Ratna Chauhan Kieran C Molloy Prof Gabriele Kociok‐Köhn Dr Lal Bahadur Prof Nanhai Singh Prof |
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Institution: | 1. Department of Chemistry, Faculty of Science, Lucknow University, Lucknow 226 007 (India);2. Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi 221005 (India), Fax: (+91)?542‐2368127;3. Department of Chemistry, University of Bath, Bath BA2 7AY (UK) |
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Abstract: | Nine new transition‐metal dithiocarbamates involving ferrocene (Fc), namely, M(FcCH2Bzdtc)2] (M=NiII ( 1 ), CuII ( 2 ), CdII ( 3 ), HgII ( 4 ), PdII ( 5 ), PtII ( 6 ) and PbII ( 7 ); Bzdtc=N‐benzyl dithiocarbamate) and M(FcCH2Bzdtc)3] (M=CoII ( 8 ) and UO2VI ( 9 )), have been synthesised and characterised by micro analyses, IR spectroscopy, 1H and 13C NMR spectroscopy, and in three cases by single‐crystal X‐ray analysis. The peak broadening in the 1H spectrum of the copper complex indicates the paramagnetic behaviour of this compound. A square‐planar geometry around the nickel and copper complexes and distorted linear geometry around the mercury complex have been found. The latter geometry is attributed to the bulkiness of the methylferrocenyl and benzyl groups. The observed single quasi‐reversible cyclic voltammograms for complexes 2 , 8 and 9 indicate the stabilisation of a metal centre other than Fe in their characteristic oxidation state. These complexes have been used as a photosensitiser in dye‐sensitised solar cells. |
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Keywords: | dithiocarbamates ferrocene heterometallic complexes solar cells transition metals |
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