Premium
Cover Feature: Preparation of Siloxane‐Based Microporous Crystals from Hydrogen‐Bonded Molecular Crystals of Cage Siloxanes (Chem. Eur. J. 64/2018)
Author(s) -
Sato Naoto,
Kuroda Yoshiyuki,
Wada Hiroaki,
Shimojima Atsushi,
Kuroda Kazuyuki
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201805252
Subject(s) - silanol , microporous material , siloxane , hydrogen bond , intermolecular force , materials science , hydrothermal circulation , crystallography , cage , chemical engineering , molecule , chemistry , organic chemistry , composite material , polymer , catalysis , engineering , mathematics , combinatorics
Ordered assembly assisted by H bonds and subsequent intermolecular connection of double‐four ring (D4R) siloxanes modified with dimethylsilanol groups was performed to prepare siloxane‐based microporous crystals with a non‐hydrothermal method. Intermolecular H bonding of the dimethylsilanol groups led to a pillared‐layer structure consisting of D4R units. A new crystalline microporous material retaining the original ordered arrangement was formed by bridging adjacent cages within the crystals by direct silylation of the silanol groups with trichlorosilane. More information can be found in the Full Paper by A. Shimojima, K. Kuroda et al. on page 17033.