Tellurium imaging composition including improved reductant precursor and method

摘要

Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae <IMAGE> <IMAGE> <IMAGE> where Y1 is alkoxy, Y2 is chloro or alkoxy and Y3 is hydrogen, chloro or alkoxy. Methods are provided for synthesizing the reductant precursors.