Issue 23, 2018

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

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

Supplementary files

Article information

Article type
Paper
Submitted
05 Febr. 2018
Accepted
30 Apr. 2018
First published
30 Apr. 2018
This article is Open Access
Creative Commons BY license

Dalton Trans., 2018,47, 7721-7729

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, 47, 7721 DOI: 10.1039/C8DT00490K

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