β-Functionalized ethylchalcogenolate complexes of lead(II): Synthesis, structures and their conversion into lead chalcogenide nanoparticles |
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| Authors: | Gotluru Kedarnath Liladhar B Kumbhare Sandip Dey Amey P Wadawale Vimal K Jain Goutam K Dey |
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| Institution: | aChemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India;bMaterials Science Division, Bhabha Atomic Research Centre, Mumbai 400 085, India |
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| Abstract: | The reactions of Pb(OAc)2·3H2O with NaER yield homoleptic colorless to yellow complexes of composition, Pb(ER)2] (ER = SCH2CH2NMe2 (1), SeCH2CH2NMe2 (2) and SeCH2CH2COOMe (3)). These complexes were characterized by elemental analyses, UV–Vis and 1H NMR data. Molecular structures of Pb(ECH2CH2NMe2)2] (E = S or Se) have been established by single crystal X-ray diffraction analyses. These molecules have a distorted trigonal bipyramidal configuration around lead with the nitrogen atoms of the chelating chalcogenolate ligands occupying the axial positions. Thermal behavior of these complexes was studied by TG analysis. Pyrolysis in a furnace or in HDA (hexadecylamine) gave PbE nanoparticles which were characterized by UV–Vis, photoluminescence, XRD, EDAX, and TEM measurements. |
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| Keywords: | Lead selenolate PbSe Nanoparticles Crystal structure TEM |
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