Structural chemistry of dihalogenopalladium(II) and platinum(II) complexes of heteroleptic N,S- and N,Se-donor ligands based on the 2-organochalcogenomethylpyridine motif
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| Title: | Structural chemistry of dihalogenopalladium(II) and platinum(II) complexes of heteroleptic N,S- and N,Se-donor ligands based on the 2-organochalcogenomethylpyridine motif |
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| Authors: | Jones, Roderick C., Canty, Allan J.1, Gardiner, Michael G. Michael.Gardiner@utas.edu.au, Tolhurst, Vicki-Anne1 |
| Source: | Inorganica Chimica Acta. Oct2011, Vol. 376 Issue 1, p290-295. 6p. |
| Subjects: | Molecular structure, Palladium compounds, Platinum compounds, Metal complexes, Ligands (Chemistry), Pyridine, Selenium |
| Abstract: | Abstract: The structural chemistry of dihalogenopalladium(II) and platinum(II) complexes of 2-organochalcogenomethylpyridine ligands is described. Complexes with a methyl group in the 6-position of the pyridyl ring, 6-MepyCH2ER, form dimeric complexes [trans-PdX2(μ-6-MepyCH2SePh-N,Se)]2 (X=Br (1), I (2)) or mononuclear complexes trans-PdI2(6-MepyCH2SR-N)2 (R=Me (5), Ph (6)). Absence of a 6-methyl substituent results in the bidentate configuration observed for PdI2(pyCH2SePh-N,Se) (3) and PdI2(4-MepyCH2SMe-N,S) (4). Related platinum(II) complexes are mononuclear including PtCl2(6-MepyCH2SPh-N,S) (8) as an analogue of trimeric [trans-PdCl2(μ-6-MepyCH2SPh-N,S)]3. Differences between palladium and platinum appear to result from a combination of steric and electronic factors. [Copyright &y& Elsevier] |
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| Database: | Engineering Source |
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