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|Title: ||Synthesis and Molecular Structures of the Cobalt Complexes (eta(4)-C(4)Me(4)) Co(CO)(2)SnCl(3), (eta(4)-C(4)Me(4))Co(CO)(2)(TeI(2)Ph), and (eta(4)-C(4)Me(4))Co(CO)(2) (TeBrIPh) with the Shortened Co-Sn and Co-Te Bonds|
|Authors: ||TORUBAEV, YV|
|Issue Date: ||2009|
|Publisher: ||MAIK NAUKA/INTERPERIODICA/SPRINGER|
|Citation: ||RUSSIAN JOURNAL OF COORDINATION CHEMISTRY, 35(1), 1-5|
|Abstract: ||The complex (eta(4)-C(4)Me(4))Co(CO)(2)I (I) reacted with excess SnCl(2) in boiling THF to give, through replacement of the iodide ligand by the fragment SnCl 3, the mononuclear complex (eta(4)-C(4)Me(4))Co(CO)(2)SnCl(3) (II) containing the Co-Sn bond (2.459(1)angstrom). In a reaction of complex I with phenyltellurenyl halides PhTeI and PhTeBr, an analogous insertion into the cobalt - iodine bond yielded (eta(-)C(4)Me(4))Co(CO)(2)(TeI(2)Ph) (III) and (eta(4)-C(4)Me(4))Co(CO)(2)(TeBrIPh) (IV), respectively. This type of coordination of the aryltellurenyl halide fragment to the transition metal atom was observed for the first time. X-ray diffraction analysis revealed a substantial shortening of the formally single Co-Sn and Co-Te bonds in complexes II - IV compared to the sum of the covalent radii of the corresponding atoms.|
|Appears in Collections:||Article|
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