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Synthesis, characterisation and thermal properties of Sn(II) pyrrolide complexes

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Abstract

SnO is a rare example of a stable p-type semiconductor material. Here, we describe the synthesis and characterisation of a family of Sn(II) pyrrolide complexes for future application in the MOCVD and ALD of tin containing thin films. Reaction of the Sn(II) amide complex, [{(Me3Si)2N}2Sn], with the N,N-bidentate pyrrole pro-ligand, L1H, forms the hetero- and homoleptic complexes [{L1}Sn{N(SiMe3)2}] (1) and [{L1}2Sn] (2), respectively, bearing the 2-dimethylaminomethyl-pyrrolide ligand (L1). Reaction of [{(Me3Si)2N)}2Sn] with the pyrrole-aldimine pro-ligands, L2H–L7H, results in the exclusive formation of the homoleptic bis-pyrrolide complexes [{L2–7}2Sn] (3–8). All complexes have been characterised by elemental analysis and NMR spectroscopy, and the molecular structures of complexes 1–5 and 8 are determined by single crystal X-ray diffraction. TG analysis and isothermal TG analysis have been used to evaluate the potential utility of these systems as MOCVD and ALD precursors.

Graphical abstract: Synthesis, characterisation and thermal properties of Sn(ii) pyrrolide complexes

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Publication details

The article was received on 05 Feb 2018, accepted on 30 Apr 2018 and first published on 30 Apr 2018


Article type: Paper
DOI: 10.1039/C8DT00490K
Citation: Dalton Trans., 2018, Advance Article
  • Open access: Creative Commons BY license
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    Synthesis, characterisation and thermal properties of Sn(II) pyrrolide complexes

    J. D. Parish, M. W. Snook, A. L. Johnson and G. Kociok-Köhn, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT00490K

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