Bipolar charge transport in a robust hexacoordinate organosilane
Earnhardt A.W. Boyle K.M. Adams T. Walter M.G. Wang Y. Zhang Y. Adeyemi A. Merkert J. Bimukhanov A.N. Aldongarov A.A. McMillen C.D. Schmedake T.A.
1 March 2022Elsevier B.V.
Journal of Organometallic Chemistry
2022#961
A hexacoordinate organosilane with a SiC4N2 skeleton has been synthesized from the reaction of a tridentate, dianionic, CNC-diphenylpyridine (DPP) ligand with SiCl4. The complex has a distorted octahedral geometry with short Si-N bond lengths averaging 1.9111(14) Å. The Si(DPP)2 complex is resistant to hydrolysis and thermally robust. Thermally evaporated films of Si(DPP)2 exhibit bipolar charge transport, with electron and hole charge mobilities high enough for device applications (µe = 18 × 10−5 cm2V−1s−1 and µh = 1.1 × 10−5 cm2V−1s−1). Computational modeling indicates electron transport involves a conventional π-delocalized LUMO, but that hole transport involves a delocalized σ-bonded HOMO.
Bipolar charge transfer , Hexacoordinate silicon , Hypercoordinate , Organic electronics , Organosilicon
Text of the article Перейти на текст статьи
Department of Chemistry, University of North Carolina at Charlotte, Charlotte, 28223, NC, United States
Margik, Burson 255, 9201, University City Blvd., Charlotte, NC 28223, NC, United States
Nanoscale Science Program, University of North Carolina at Charlotte, Charlotte, 28223, NC, United States
Department of Electrical and Computer Engineering, University of North Carolina at Charlotte, Charlotte, 28223, NC, United States
Department of Technical Physics, Faculty of Physics and Technology, L.N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Laboratory of Physical and Quantum Chemistry, L.N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Department of Chemistry, Clemson University, Clemson, 29634, SC, United States
Department of Chemistry
Margik
Nanoscale Science Program
Department of Electrical and Computer Engineering
Department of Technical Physics
Laboratory of Physical and Quantum Chemistry
Department of Chemistry
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026