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Octakis(1,1,2‐trimethylpropyl)octasilacubane: Synthesis, Molecular Structure, and Unusual Properties
Author(s) -
Matsumoto Hideyuki,
Higuchi Koichi,
Kyushin Soichiro,
Goto Midori
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199213541
Subject(s) - cyclic voltammetry , spectroscopy , chemistry , crystallography , orange (colour) , wavelength , electronic structure , photochemistry , materials science , computational chemistry , electrochemistry , physics , optoelectronics , electrode , food science , quantum mechanics
The thermodynamically and kinetically stable peralkyloctasilacubane 1 is formed in the reaction of SiCl 3 (R = CMe 2 CHMe 2 ) with Na. The orange‐red compound is soluble in hydrocarbons and was characterized by spectroscopy and X‐ray crystallography. Both its long‐wavelength electronic transition in the UV/VIS spectrum at λ ≈ 500 nm and its low oxidation potential found by cyclic voltammetry at 0.43 V—unusual values for cy‐clopolysilanes—are traced back to the highly strained Si 8 framework.
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