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Issue 41, 2016
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The effect of alkyl chain length on the structure of lead(II) xanthates and their decomposition to PbS in melt reactions

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Abstract

A series of lead(II) alkylxanthates, [Pb(S2COR)2] (R = ethyl (1), n-propyl (2), n-butyl (3), n-hexyl (4) or n-octyl (5)) have been prepared and explored as single source precursors for use in melt reactions to form lead sulfide. X-ray single crystal structures of (2), (3) and (4) were used along with previously reported structures to investigate the influence of structure and chain length on the materials produced. The complexes were decomposed at 150, 175 or 200 °C forming PbS nanocrystals as confirmed by XRD and TEM. Analysis by SEM shows that the choice of precursor had an influence on nanocrystal size with longer alkyl chains resulting in smaller cubic nanocrystals. In addition to cubes, anisotropic growth was observed from decomposition of compound (5).

Graphical abstract: The effect of alkyl chain length on the structure of lead(ii) xanthates and their decomposition to PbS in melt reactions

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Publication details

The article was received on 19 Jul 2016, accepted on 09 Sep 2016 and first published on 22 Sep 2016


Article type: Paper
DOI: 10.1039/C6DT02859D
Citation: Dalton Trans., 2016,45, 16345-16353

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    The effect of alkyl chain length on the structure of lead(II) xanthates and their decomposition to PbS in melt reactions

    P. D. McNaughter, S. A. Saah, M. Akhtar, K. Abdulwahab, M. A. Malik, J. Raftery, J. A. M. Awudza and P. O'Brien, Dalton Trans., 2016, 45, 16345
    DOI: 10.1039/C6DT02859D

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