The bipyridine adducts of N-phenyldithiocarbamato complexes of Zn(II) and Cd(II); synthesis, spectral, thermal decomposition studies and use as precursors for ZnS and CdS nanoparticles

Damian C Onwudiwe; Christien A Strydom

doi:10.1016/j.saa.2014.08.004

The bipyridine adducts of N-phenyldithiocarbamato complexes of Zn(II) and Cd(II); synthesis, spectral, thermal decomposition studies and use as precursors for ZnS and CdS nanoparticles

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Jan 25:135:1080-9. doi: 10.1016/j.saa.2014.08.004. Epub 2014 Aug 13.

Authors

Damian C Onwudiwe¹, Christien A Strydom²

Affiliations

¹ Chemical Resource Beneficiation (CRB) Research Focus Area, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa. Electronic address: dcconwudiwe@gmail.com.
² Chemical Resource Beneficiation (CRB) Research Focus Area, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.

PMID: 25173525
DOI: 10.1016/j.saa.2014.08.004

Abstract

Bipyridine adducts of N-phenyldithiocarbamato complexes, [ML(1)2L(2)] (M=Cd(II), Zn(II); L(1)=N-phenyldithiocarbamate, L(2)=2,2' bipyridine), have been synthesized and characterised. The decomposition of these complexes to metal sulphides has been investigated by thermogravimetric analysis (TGA). The complexes were used as single-source precursors to synthesize MS (M=Zn, Cd) nanoparticles (NPs) passivated by hexadecyl amine (HDA). The growth of the nanoparticles was carried out at two different temperatures: 180 and 220 °C, and the optical and structural properties of the nanoparticles were studied using UV-Vis spectroscopy, photoluminescence spectroscopy (PL), transmission emission microscopy (TEM) and powdered X-ray diffraction (p-XRD). Nanoparticles, whose average diameters are 2.90 and 3.54 nm for ZnS, and 8.96 and 9.76 nm for CdS grown at 180 and 220 °C respectively, were obtained.

Keywords: CdS; Dithiocarbamate; Morphology; Nanoparticles; Optical properties; ZnS.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

2,2'-Dipyridyl / chemical synthesis*
2,2'-Dipyridyl / chemistry
Amines / chemistry
Cadmium / chemistry*
Cadmium Compounds / chemistry*
Calorimetry, Differential Scanning
Coordination Complexes / chemical synthesis
Coordination Complexes / chemistry
Hydrocarbons / chemistry
Magnetic Resonance Spectroscopy
Nanoparticles / chemistry*
Nanoparticles / ultrastructure
Optical Phenomena
Spectrometry, Fluorescence
Spectroscopy, Fourier Transform Infrared
Sulfides / chemistry*
Temperature
Thermogravimetry
Thiocarbamates / chemical synthesis*
Thiocarbamates / chemistry
X-Ray Diffraction
Zinc / chemistry*
Zinc Compounds / chemistry*

Substances

Amines
Cadmium Compounds
Coordination Complexes
Hydrocarbons
Sulfides
Thiocarbamates
Zinc Compounds
Cadmium
cadmium sulfide
2,2'-Dipyridyl
Zinc
zinc sulfide
hexadecylamine