title: Preparation of ZnS nanosheets from (2,2'-bipyridine)bis(1,2,3,4-tetrahydroquinolinecarbodithioato-S,S')zinc(II).
abstract: (2,2'-Bipyridine)bis(1,2,3,4-tetrahydroquinolinecarbodithioato-S,S')zinc(II), [Zn(thqdtc)(2)(2,2'-bipy)] (1) has been synthesized from bis(1,2,3,4-tetrahydroquinolinecarbodithioato-S,S')zinc(II), [Zn(thqdtc)(2)] (2) and characterized by elemental analysis, IR and NMR spectroscopy and single crystal X-ray analysis. In the (13)C NMR spectrum, complex 1 showed a single low-field resonance associated with back bone carbon of dithiocarbamate (N(13)CS(2)) at 209.2 ppm. Single crystal X-ray analysis of 1 showed that the zinc ion is in a distorted octahedral environment of two nitrogen atoms and four sulfur atoms around it. The complex 1 has been used as single source precursor for the preparation of ZnS nanosheets via solvothermal method. The ZnS nanosheets have been characterized by powder XRD, EDAX, TEM, UV-Vis and fluorescence spectroscopy. TEM studies indicate that the nanosheets are very thin. The nanosheets obtained show quantum size effect in their UV-Vis absorption spectrum. The strong emission peak centered at 415 nm in fluorescence spectrum could be attributed to the electron-hole recombination from internal vacancies for Zn and S atoms.
authors.affiliation: Department of Chemistry, Annamalai University, Annamalainagar 608 002, India.
authors.forename: N
authors.initials: N
authors.lastname: Srinivasan
authors.forename: S
authors.initials: S
authors.lastname: Thirumaran
authors.forename: Samuele
authors.initials: S
authors.lastname: Ciattini
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D011804:Quinolines / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013440:Sulfides / Q000737:chemistry*; D013859:Thiocarbamates / Q000737:chemistry*; D014961:X-Ray Diffraction; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D011804:Quinolines; D013440:Sulfides; D013859:Thiocarbamates; D017967:Zinc Compounds; D015082:2,2'-Dipyridyl; C542964:1,2,3,4-tetrahydroquinoline; C031238:zinc sulfide