Mass spectrometry of complex compound of bis-thiourea-lead (II) chloride

Keywords: thiourea complex compounds, complexation, lead sulphide, mass spectrometry

Abstract

    Complex compounds of lead salts and thiourea are of interest due to the possibility of their practical application as precursors in the deposition of metal sulphide films. It is relevant to establish the relationship between the composition and structure of the initial complex compounds and the structure of the sulphides formed as a result of their thermal destruction. This paper presents the results of studying the complex compounds formed in an aqueous solution of lead chloride and thiourea.
    The structure of the complex compounds was determined by matrix-assisted laser desorption/ionisation mass spectrometry. The mass spectrometry data confirmed the formation of the [Pb((NH2)2CS)2Cl2] complex in the solution, which is a precursor in the deposition of PbS films. It was demonstrated that mass spectrometry fragmentation of the molecular ion of the [Pb((NH2)2CS)2Cl2] compound leads to the formation of a lead sulphide ion.
    The obtained data confirm the formation of the lead-sulphur bonds in the inner sphere of the complex compound, which are fragments of the crystal structure of the prospective sulphide formed during the thermolysis of the complex.

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Author Biographies

Mikhail Y. Krysin , Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation

Dr. Sci. (Chem.), Associate Professor, Professor of Department of Organic Chemistry, Voronezh State University (Voronezh, Russian Federation)

Victor N. Semenov, Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation

Dr. Sci. (Chem.), Professor, Chair of Department of General and Inorganic Chemistry, Voronezh State University (Voronezh, Russian Federation)

Tatyana V. Samofalova, Voronezh State University, 1 Universitetskaya pl., Voronezh 394018, Russian Federation

Cand. Sci. (Chem.), Associate Professor of the Department of General and Inorganic Chemistry, Voronezh State University (Voronezh, Russian Federation)

Nadezhda M. Ovechkina, Voronezh State Medical University named after N. N. Burdenko, 10 Studencheskaya st., Voronezh 394036, Russian Federation

Assistant of the Department of Chemistry, Voronezh State Medical University named after N. N. Burdenko (Voronezh, Russian Federation)

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Published
2023-07-07
How to Cite
Krysin , M. Y., Semenov, V. N., Samofalova, T. V., & Ovechkina, N. M. (2023). Mass spectrometry of complex compound of bis-thiourea-lead (II) chloride. Kondensirovannye Sredy I Mezhfaznye Granitsy = Condensed Matter and Interphases, 25(3), 462-466. https://doi.org/10.17308/kcmf.2023.25/11268
Section
Short communication

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