A novel arylazoplatinum complex has been prepared by displacement of diphenylacetylene from diphenylacetylenebis(triphenylphosphine)platinum using an aryldiazonium salt. If the reaction is performed under hydrogen, followed by addition of dry hydrogen chloride, an arylhydrazonium salt can be isolated, thus a facile homogeneous hydrogenation of an arylazoplatinum complex has been achieved for the first time. I.r., n.m.r. and conductivity data support the formulae given and it is reasonable to speculate that the intermediate reactive in hydrogenation is a platinum(II) species with a readily available coordination site. © 1974.
A novel arylazoplatinum complex which is readily hydrogenated
TONIOLO, Luigi;
1974-01-01
Abstract
A novel arylazoplatinum complex has been prepared by displacement of diphenylacetylene from diphenylacetylenebis(triphenylphosphine)platinum using an aryldiazonium salt. If the reaction is performed under hydrogen, followed by addition of dry hydrogen chloride, an arylhydrazonium salt can be isolated, thus a facile homogeneous hydrogenation of an arylazoplatinum complex has been achieved for the first time. I.r., n.m.r. and conductivity data support the formulae given and it is reasonable to speculate that the intermediate reactive in hydrogenation is a platinum(II) species with a readily available coordination site. © 1974.
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