Four triphenylene (TP) and four hexa-peri-hexabenzocoronene (HBC) derivatives with trialkylsilylethynyl groups were prepared and characterized by differential scanning calorimetry, polarizing optical microscopy, and X-ray diffraction measurements. All compounds were highly soluble in less-polar organic solvents and exhibited a columnar phase, Col(h) or Col(r) for the TPs, and Col(h) for the HBCs. The hole transport ability in the HBCs' columnar phase, 0.4-1.5x10(-3) cm(2) V-1 s(-1) at 40-180 degrees C, and its temperature dependence were determined by the time-of-flight method using a solution technique. (C) 2015 Elsevier Ltd. All rights reserved.
Diorganotelluride-Catalyzed Oxidation of Silanes to Silanols under Atmospheric Oxygen
Diorganotellurides efficiently catalyze the aerobic oxidation of organosilanes under photosensitized conditions to afford the corresponding silanols in excellent yield.
LUKEVITS EH.; GRANIN E. F.; CHARUJSKAYA L. P.; SOKOLOVA N. K.; ERCHAK N. +, LATVRSR ZINATNU AKAD. VESTIS. KIM. SER., IZV. AN LATVSSR. CEP. XIM., 1978+
作者:LUKEVITS EH.、 GRANIN E. F.、 CHARUJSKAYA L. P.、 SOKOLOVA N. K.、 ERCHAK N. +