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Diacetylene‐Bridged Periodic Mesoporous Organosilicas with Aggregates: Synthesis and Charge/Energy‐Transfer Properties
Author(s) -
Wang Hui,
Han Shuhua,
Hu Yongfeng,
Dynes James J.
Publication year - 2016
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201600290
Subject(s) - diacetylene , mesoporous organosilica , mesoporous material , materials science , xanes , acceptor , electron transfer , electron acceptor , molecule , charge transfer complex , absorption (acoustics) , photochemistry , absorption spectroscopy , spectroscopy , chemical engineering , chemistry , mesoporous silica , polymer , organic chemistry , polymerization , optics , catalysis , physics , quantum mechanics , composite material , condensed matter physics , engineering
Abstract Diacetylene‐bridged periodic mesoporous organosilicas (DAPMOs) with aggregates were synthesized and characterized. The DAPMO‐based donor–acceptor charge‐transfer (CT) system was prepared under ambient conditions, in which the diacetylenic groups in the pore walls were the electron donors and the decylviologen molecules acted as electron acceptors in the pore channels. The UV/Vis diffuse reflectance spectra and soft X‐ray absorption near‐edge structure (XANES) spectroscopy showed the formation of the CT complex. Importantly, energy transfer from the diacetylene aggregates to the CT complex occurred upon excitation at 330 nm, which was demonstrated by the fluorescence spectra of the CT systems. This design of hybrid organic–inorganic materials based on PMOs is promising to construct effective electron and energy transfer systems to fabricate optoelectronic materials.