Zinc Thiocarboxylate Complexes as Precursors for Zinc Sulfide Nanoparticles under Aerobic Conditions

摘要: Six new compounds with the formula [Zn(SCOR)2(N–N)] [R = –CH3 (TAc), –C6H5 (TBn); N–N 2,2′-bipyridine (BPY), 1,10-phenanthroline (PHEN), 1,2-bis(4-pyridyl)ethylene (BPE), neocuproine (NEO)] have been obtained by reaction of Zn(CH3COO)2·2H2O corresponding pyridine derivative and thiocarboxylate in methanol ratio Zn/SCOR/N–N 1:2:1. In all compounds, metal atom is bonded to sulfur atoms two thiocarboxylato ligands nitrogen from one imposing a distorted-tetrahedral geometry. The use chelating dipyridine leads discrete monomeric entities [Zn(TAc)2(BPY)] (1), [Zn(TBn)2(BPY)] (2), [Zn(TAc)2(NEO)] (3), [Zn(TBn)2(PHEN)] (4). On contrary, bridging capability BPE ligand gives rise polymeric chains observed [Zn(TAc)2(μ-BPE)] (5) [Zn(TBn)2(μ-BPE)] (6). occurrence Zn···O weak interactions rationalized on basis νC=O shift continuous shape measurements. Additionally, present work demonstrates how ZnS nanoparticles can be dry thermolysis prepared complexes under aerobic conditions moderate temperatures (300 °C). analysis X-ray diffraction pattern SEM/TEM images reveals presence crystallites below 10 nm. influence N-heterocycle crystalline phase (blende or wurtzite), size, purity resulting zinc sulfide discussed.