Syntheses and characterization of nickel(II) dithiocarbamate complexes containing NiS4 and NiS2PN moieties: Nickel sulphide nanoparticles from a single source precursor期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Syntheses and characterization of nickel(II) dithiocarbamate complexes containing NiS4 and NiS2PN moieties: Nickel sulphide nanoparticles from a single source precursor

Authors:	Felicia F. Bobinihi Jejenija Osuntokun Damian C. Onwudiwe

Affiliation:	1. Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural Science and Agriculture, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa;2. Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural Science and Agriculture, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa;3. Federal college of Education, P.M.B. 1026, Okene, Kogi-State, Nigeria

Abstract:	In this study, ammonium N-benzyldithiocarbamate was synthesized and used to prepare homoleptic Ni(II) bis(N-benzyldithiocarbamate) (1) and heteroleptic Ni(II) complexes involving isocyanate (2) and cyanide (3) ions. The complexes were characterized by elemental analysis, Fourier transform infra-red (FTIR), and NMR (¹H and ¹³C) spectroscopic techniques. Complex 2 was further characterized by single crystal X-ray diffraction analysis. The FTIR showed bidentate co-ordination for all the complexes as the v(C $/>N) stretching frequency were in the 980–1050<!-- --> <!-- -->cm<sup>?1</sup> region without any splitting. Thermal decomposition profile of the complexes showed decomposition resulting in the formation of nickel sulphides. The homoleptic complex <strong>1</strong> was utilized as single source precursor (SSP) to prepare Nickel sulphide nanoparticles. The synthesis of the nanoparticles was conducted using different capping molecules (with various alkyl chain lengths), and at different reaction temperature and time. Pure phase Heazlewoodite (Ni<sub>3</sub>S<sub>2</sub>) nanoparticles were obtained from the X-ray diffraction study. The TEM analysis showed that the type of capping agent, reaction temperature, and time of reaction have significant effect on the morphology and size of the nanoparticles. The optical properties of the nanoparticles were studied using absorption and fluorescence spectroscopies, and they displayed evidence of quantum confinement effect.</td> </tr> <tr> <td align=$
Keywords:	Nickel sulphide Dithiocarbamate Nanoparticles Morphology
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