title: A new, higher yielding synthetic route towards dodecaphenyl cage silsesquioxanes: synthesis and mechanistic insights.
abstract: Cage dodecaphenylsilsesquioxane (T12-Phenyl) was synthesized in a one batch, mildly basic aqueous solution under room temperature conditions using a trialkoxysilane precursor. Significant improvements in synthetic yield (>95%) were observed compared with previous reports. Kinetic studies of the hydrolysis of phenyltrimethoxysilane were conducted and the condensation was monitored by (29)Si NMR which revealed the presence of a transient, intermediary T1 species as the pathway to dodecaphenylsilsesquioxane spherulites, and the tendency for T12 structures over T8, T10, and other substructures was explained through MM2 simulations.
authors: Nanohybrids Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seong-Buk Gu, Seoul 136-791, Korea.
authors: Albert S
authors: AS
authors: Lee
authors: Seung-Sock
authors: SS
authors: Choi
authors: He Seung
authors: HS
authors: Lee
authors: Kyung-Youl
authors: KY
authors: Baek
authors: Seung Sang
authors: SS
authors: Hwang