Premium
Intermolecular Charge‐Transfer Interactions Facilitate Two‐Photon Absorption in Styrylpyridine–Tetracyanobenzene Cocrystals
Author(s) -
Sun Lingjie,
Zhu Weigang,
Wang Wei,
Yang Fangxu,
Zhang Congcong,
Wang Shufeng,
Zhang Xiaotao,
Li Rongjin,
Dong Huanli,
Hu Wenping
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201703439
Subject(s) - intermolecular force , cocrystal , supramolecular chemistry , absorption (acoustics) , chemical physics , acceptor , two photon absorption , crystal engineering , charge (physics) , materials science , chemistry , nanotechnology , photochemistry , crystallography , hydrogen bond , molecule , crystal structure , organic chemistry , optics , physics , quantum mechanics , composite material , laser , condensed matter physics
Cocrystals of 4‐styrylpyridine and 1,2,4,5‐tetracyanobenzene were successfully prepared by supramolecular self‐assembly. Donor–acceptor interactions between the molecular components are the main driving force for self‐assembly and contribute to intermolecular charge transfer. The cocrystals possess two‐photon absorption properties that are not observed in the individual components; suggesting that two‐photon absorption originates from intermolecular charge‐transfer interactions in the donor–acceptor system. The origin of two‐photon absorption in multichromophore systems remains under‐researched; thus, the system offers a rare demonstration of two‐photon absorption by cocrystallization. Cocrystal engineering may facilitate further design and development of novel materials for nonlinear optical and optoelectronic applications.