Synthesis, Characterisation and Thermal Properties of Sn(II) Pyrrolide Complexes

Research output: Contribution to journalArticle

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 a 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, NMR spectroscopy, and the molecular structures of complexes 1-5 and 8 determined by single crystal X-ray diffraction. TG analysis and isothermal TG analysis have been used to evaluate the utility of these systems as potential MOCVD and ALD precursors.
LanguageEnglish
Number of pages9
JournalDalton Transactions
Volume47
Issue number23
Early online date30 Apr 2018
DOIs
StatusPublished - 21 Jun 2018

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Pyrroles
Thermodynamic properties
Metallorganic chemical vapor deposition
Ligands
Bearings (structural)
Tin
Amides
Molecular structure
Nuclear magnetic resonance spectroscopy
Single crystals
Semiconductor materials
X ray diffraction
Thin films
Chemical analysis

Keywords

  • tin
  • pyrrolide
  • TGA
  • ALD
  • MOCVD
  • Precursors

Cite this

Synthesis, Characterisation and Thermal Properties of Sn(II) Pyrrolide Complexes. / Parish, James D.; Snook, Michael W.; Johnson, Andrew L.; Kociok-Kohn, Gabriele.

In: Dalton Transactions , Vol. 47, No. 23, 21.06.2018.

Research output: Contribution to journalArticle

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N2 - 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 a 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, NMR spectroscopy, and the molecular structures of complexes 1-5 and 8 determined by single crystal X-ray diffraction. TG analysis and isothermal TG analysis have been used to evaluate the utility of these systems as potential MOCVD and ALD precursors.

AB - 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 a 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, NMR spectroscopy, and the molecular structures of complexes 1-5 and 8 determined by single crystal X-ray diffraction. TG analysis and isothermal TG analysis have been used to evaluate the utility of these systems as potential MOCVD and ALD precursors.

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