title: Group 12 metal monoselenocarboxylates: synthesis, characterization, structure and their transformation to metal selenide (MSe; M = Zn, Cd, Hg) nanoparticles.
abstract: Reactions of [MCl2(tmeda)] with potassium salts of monoselenocarboxylic acids gave complexes of the general formula [M(SeCOR)2(tmeda)] (M = Zn, Cd; R = Ph, Tol; Tol = C6H4-p-CH3; tmeda = Me2NCH2CH2NMe2). The analogous mercury complexes were unstable at room temperature and afforded HgSe nanoparticles during the course of reaction. All the complexes were characterized by elemental analysis, IR, UV-vis, NMR (1H, 13C, 77Se, 113Cd) data. The X-ray structural analysis of [Cd(SeCOPh)2(tmeda)] revealed that the complex is a discrete monomer having an approximate tetrahedral coordination environment around the central metal atom with monodentate (Se-bonded) selenocarboxylates. Thermal behavior of these complexes was studied by TG analysis. Pyrolysis in a furnace or in HDA (hexadecylamine) gave MSe nanoparticles, which were characterized by XRD, EDAX, SEM and absorption spectroscopy.
authors.affiliation: Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
authors.forename: Gotluru
authors.initials: G
authors.lastname: Kedarnath
authors.forename: Liladhar B
authors.initials: LB
authors.lastname: Kumbhare
authors.forename: Vimal K
authors.initials: VK
authors.lastname: Jain
authors.forename: Prasad P
authors.initials: PP
authors.lastname: Phadnis
authors.forename: Munirathinam
authors.initials: M
authors.lastname: Nethaji
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D002264:Carboxylic Acids / Q000737:chemistry*; D018360:Crystallography, X-Ray; D017669:Mercury Compounds / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D008958:Models, Molecular; D008968:Molecular Conformation; D018036:Selenium Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D013053:Spectrophotometry; D014961:X-Ray Diffraction; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D002264:Carboxylic Acids; D017669:Mercury Compounds; D018036:Selenium Compounds; D017967:Zinc Compounds