A soluble molecular variant of the semiconducting silicondiselenide

Silicondiselenide is a semiconductor and exists as an insoluble polymer (SiSe ) which is prepared by reacting elemental silicon with selenium powder in the temperature range of 400-850 °C. Herein, we report on the synthesis, isolation, and characterization of carbene stabilized molecular silicondise...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2015-01, Vol.6 (9), p.5230-5234
Main Authors: Chandra Mondal, Kartik, Roy, Sudipta, Dittrich, Birger, Maity, Bholanath, Dutta, Sayan, Koley, Debasis, Vasa, Suresh Kumar, Linser, Rasmus, Dechert, Sebastian, Roesky, Herbert W
Format: Article
Language:English
Subjects:
Diffraction
Electron density
Mass spectrometry
Mathematical analysis
Molecular structure
Selenium
Semiconductors
Solvents
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Summary:Silicondiselenide is a semiconductor and exists as an insoluble polymer (SiSe ) which is prepared by reacting elemental silicon with selenium powder in the temperature range of 400-850 °C. Herein, we report on the synthesis, isolation, and characterization of carbene stabilized molecular silicondiselenide in the form of (cAAC) Si Se ( ) [cAAC = cyclic alkyl(amino)carbene]. is synthesized reaction of diatomic silicon(0) compound (cAAC) Si ( ) with black selenium powder at -78 °C to room temperature. The intensely orange colored compound is soluble in polar organic solvents and stable at room temperature for a month under an inert atmosphere. decomposes above 245 °C. The molecular structure of has been confirmed by X-ray single crystal diffraction. It is also characterized by UV-vis, IR, Raman spectroscopy and mass spectrometry. The stability, bonding, and electron density distributions of have been studied by theoretical calculations.
ISSN:2041-6520
2041-6539
DOI:10.1039/c5sc01516b