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Solvent‐Induced Crystalline‐State Emission and Multichromism of a Bent π‐Surface System Composed of Dibenzocyclooctatetraene Units
Author(s) -
Nishiuchi Tomohiko,
Tanaka Keita,
Kuwatani Yoshiyuki,
Sung Jooyoung,
Nishinaga Tohru,
Kim Dongho,
Iyoda Masahiko
Publication year - 2013
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.201203952
Subject(s) - bent molecular geometry , molecule , thermochromism , solvent , conjugated system , materials science , crystallization , crystallography , cyclooctatetraene , chemistry , photochemistry , polymer , organic chemistry , composite material
All bent out of shape : The solvent of crystallization effectively enhances the emission of flexible, bent, π‐conjugated molecules in the crystalline state owing to control of the packing of the molecules in the structure. Multichromism such as thermochromism and vapochromism also arises from the solvent‐controlled packing. This crystalline‐state emission is attributable to the flexibility of cyclooctatetraene units of the bent π‐conjugated molecules in the solid state (see figure).