期刊
INORGANICA CHIMICA ACTA
卷 363, 期 13, 页码 3589-3596出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2010.07.065
关键词
Dithiocarbimate; Complex salts; Heteroleptic; Semi-conductor; Photoluminescence
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi [01(2290)/09/EMR-II]
- Department of Chemistry, Banaras Hindu University
- EPSRC (UK)
- University of Reading for funds
Two new complex salts of the form (Bu4N)(2)[Ni(L)(2)] (1) and (Ph4P)(2)[Ni(L)(2)] (2) and four heteroleptic complexes cis-M(PPh3)(2)(L) [M = Ni(II) (3), Pd(II) (4), L = 4-CH3OC6H4SO2N=CS2] and cis-M(PPh3)(2)(L') [M = Pd(II) (5), Pt(II) (6), L' = C6H5SO2N=CS2] were prepared and characterized by elemental analyses, IR, H-1, C-13 and P-31 NMR and UV-Vis spectra, solution and solid phase conductivity measurements and X-ray crystallography. A minor product trans-Pd(PPh3)(2)(SH)(2), 4a was also obtained with the synthesis of 4. The NiS4 and MP2S2 core in the complex salts and heteroleptic complexes are in the distorted square-plane whereas in the trans complex, 4a the centrosymmetric PdS2P2 core is perforce square planar. X-ray crystallography revealed the proximity of the ortho phenyl proton of the PPh3 ligand to Pd(II) showing rare intramolecular C-H center dot center dot center dot Pd anagostic binding interactions in the palladium cis-5 and trans-4a complexes. The complex salts with sigma(rt) values similar to 10 (5) S cm (1) show semi-conductor behaviors. The palladium and platinum complexes show photoluminescence properties in solution at room temperature. (C) 2010 Elsevier B.V. All rights reserved.
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