Chemistry Division, Bhabha Atomic Research Centre, Mumbai-400 085, India E-mail : jainvk@barc.gov .in Manuscript received 14 November 2007, accepted 14 November 2007 This lecture intends to present recent results on design and development of molecular precursors for the synthesis of some binary and ternary compound semiconductor nanoparticles. A wide variety of complexes of Group II, III, IV and V elements with dithiocarboxylate, xanthate, dithiocarbamate, selenocarboxylate and N,

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... oalkylchalcogenolates have been prepared and characterized by spectroscopic and single crystal X-ray diffraction techniques. Several of these complexes on thermolysis yield bulk as well as nanoparticles of metal chalcogenides (ME : M = Zn, Cd, Hg, Pb; E = S, Sc, Te) and M2S3 (M = In, Sb, Bi)). The latter have been characterized by XRD, EDAX, SEM, TEM, SAED and photoluminescence.