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Issue 47, 2008
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In search of molecular precursors for cadmium sulfide—new complexes with a sulfur-rich kernel: cadmium(II) tri-tert-butoxysilanethiolates with additional diethyldithiocarbamato ligand

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Abstract

The reaction of dimeric bis(tri-tert-butoxysilanethiolato)cadmium(II) [Cd{SSi(OBut)3}2]21 with diethyldithiocarbamate sodium salt in the presence of quaternary ammonium salts resulted in formation of three new heteroleptic cadmium(II) complexes—the first silanethiolate species possessing additionally other S-donor ligands. Neutral 2 as well as ionic compounds 3 and 4 can be obtained with a good yield depending on the quaternary salt and solvent used. Their X-ray structures have been determined—complex [Cd{SSi(OBut)3}(S2CNEt2)]22 turned out to be dimeric in the solid state, while 3 and 4 are monometallic species with a [Cd{SSi(OBut)3}2(S2CNEt2)] anion. The cadmium atom in each case has been found tetra-coordinated with a distorted CdS4 kernel. Elemental and spectral analyses (IR, NMR, UV-vis) were carried out. Thin films of 2 and 3 prepared on SiO2 substrates viaspin coating technique were analysed by AFM and XPS. The thermal decomposition product of 2 was analysed using XRD, EDS, SEM and TEM measurements and identified as hexagonal CdS.

Graphical abstract: In search of molecular precursors for cadmium sulfide—new complexes with a sulfur-rich kernel: cadmium(ii) tri-tert-butoxysilanethiolates with additional diethyldithiocarbamato ligand

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Publication details

The article was received on 14 Apr 2008, accepted on 05 Sep 2008 and first published on 30 Oct 2008


Article type: Paper
DOI: 10.1039/B806248J
Citation: Dalton Trans., 2008,0, 6825-6831
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    In search of molecular precursors for cadmium sulfide—new complexes with a sulfur-rich kernel: cadmium(II) tri-tert-butoxysilanethiolates with additional diethyldithiocarbamato ligand

    A. Kropidłowska, J. Chojnacki, A. Fahmi and B. Becker, Dalton Trans., 2008, 0, 6825
    DOI: 10.1039/B806248J

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