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http://hdl.handle.net/2074/1256
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| DC Field | Value | Language |
|---|
| contributor.author | Khalid, Abu | - |
| contributor.author | Singh, Ajai K | - |
| date.accessioned | 2006-01-24T08:38:59Z | - |
| date.available | 2006-01-24T08:38:59Z | - |
| date.issued | 1997 | - |
| identifier.citation | Polyhedron, 16(1), 33-37 | en |
| identifier.uri | http://eprint.iitd.ac.in/dspace/handle/2074/1256 | - |
| description.abstract | A (N,Te,N) ligand 2-(2-pyridoethyletelluro)ethylpyridine (1) has been synthesized by reacting in situ generated Na2Te with 2-(2-chloroethyl)pyridine. The PdII and PtII complexes of stoichiometry [MCl·1]Cl have been studied. The deshielding of ortho protons of pyridine and CH2Te signal (up to 0.5 ppm) indicate that 1 ligates in a tridentate mode. The red shift (20–25 cm−1) in ν(Te---C(alkyl)) supports the involvement of Te in coordination. Molecular weights and ΛM values of these complexes support their ionic nature (1 : 1 electrolyte). The reactions of 2-(chloromethyl)pyridine and 2,6-bis(chloromethyl)pyridine with ArTeNa (Ar = 4-MeOC6H4) could not produce (N,Te) and Te,N,Te) ligands comprising pyridyl groups. The CHCl3 present as a solvent in these reactions reacted with ArTeNa resulting in (ArTe)2CH2. To understand the behaviour of Te donor site vis-à-vis pyridyl group the single crystal structure of Pd{4-MeC6H4TeCH2CH2-2-(C5H4N)}Cl2 · 2CHCl3 was solved. An endo, puckered chelate ring is formed by (N,Te) ligand. The trans influence of the pyridyl group appears to be lower or comparable to that of tellurium. | en |
| format.extent | 50990 bytes | - |
| format.mimetype | application/pdf | - |
| language.iso | en | en |
| subject | diorganotelluride | en |
| subject | palladium | en |
| subject | platinum | en |
| subject | synthesis | en |
| subject | complexation | en |
| subject | structure | en |
| title | Asymmetric diorganotellurides containing substituted pyridyl groups—synthesis and ligation with palladium(II) and platinum(II). Crystal structure of [Pd{4-MeC6H4Te CH2CH2-2-(C5H4N)} Cl2] · 2CHCl3 | en |
| type | Article | en |
| Appears in Collections: | Chemistry
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| khalidasy1997.pdf | | 49Kb | Adobe PDF | View/Open |
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