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Samii R, Zanders D, Fransson A, Bačić G, Barry ST, Ojamäe L, Kessler V, Pedersen H, O'Brien NJ. Synthesis, Characterization, and Thermal Study of Divalent Germanium, Tin, and Lead Triazenides as Potential Vapor Deposition Precursors. Inorg Chem 2021; 60:12759-12765. [PMID: 34362251 PMCID: PMC8424630 DOI: 10.1021/acs.inorgchem.1c00695] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Only a few M-N bonded divalent group 14 precursors are available for vapor deposition, in particular for Ge and Pb. A majority of the reported precursors are dicoordinated with the Sn(II) amidinates, the only tetracoordinated examples. No Ge(II) and Pb(II) amidinates suitable for vapor deposition have been demonstrated. Herein, we present tetracoordinated Ge(II), Sn(II), and Pb(II) complexes bearing two sets of chelating 1,3-di-tert-butyltriazenide ligands. These compounds are thermally stable, sublime quantitatively between 60 and 75 °C (at 0.5 mbar), and show ideal single-step volatilization by thermogravimetric analysis.
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Affiliation(s)
- Rouzbeh Samii
- Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
| | - David Zanders
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S5B6, Canada.,Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, Bochum 44801, Germany
| | - Anton Fransson
- Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
| | - Goran Bačić
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S5B6, Canada
| | - Sean T Barry
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S5B6, Canada
| | - Lars Ojamäe
- Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
| | - Vadim Kessler
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, P.O. Box 7015, Uppsala 75007, Sweden
| | - Henrik Pedersen
- Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
| | - Nathan J O'Brien
- Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
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Gyton MR, Leverett AR, Cole ML, McKay AI. Bulky bis(aryl)triazenides: just aspiring amidinates? A structural and spectroscopic study. Dalton Trans 2020; 49:5653-5661. [DOI: 10.1039/d0dt00285b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The triazenide ligand is compared to the isoelectronic formamidinate with regards donor capacity, coordination chemistry and capacity to stabilise reactive main group species.
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Affiliation(s)
- Matthew R. Gyton
- School of Chemistry
- University of New South Wales
- Kensington
- Australia
| | | | - Marcus L. Cole
- School of Chemistry
- University of New South Wales
- Kensington
- Australia
| | - Alasdair I. McKay
- School of Chemistry
- University of New South Wales
- Kensington
- Australia
- School of Chemistry
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