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Research article2021Peer reviewedOpen access

Synthesis, Characterization, and Thermal Study of Divalent Germanium, Tin, and Lead Triazenides as Potential Vapor Deposition Precursors

Samii, Rouzbeh; Zanders, David; Fransson, Anton; Bacic, Goran; Barry, Sean T.; Ojamae, Lars; Kessler, Vadim; Pedersen, Henrik; O'Brien, Nathan J.


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 degrees C (at 0.5 mbar), and show ideal single-step volatilization by thermogravimetric analysis.

Published in

Inorganic Chemistry
2021, Volume: 60, number: 17, pages: 12759-12765

    UKÄ Subject classification

    Materials Chemistry

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