Reversible
Near-Infrared/Blue Mechanofluorochromism
of Aminobenzopyranoxanthene
Masaru Tanioka
Shinichiro Kamino
Atsuya Muranaka
Yousuke Ooyama
Hiromi Ota
Yoshinao Shirasaki
Jun Horigome
Masashi Ueda
Masanobu Uchiyama
Daisuke Sawada
Shuichi Enomoto
10.1021/jacs.5b00877.s005
https://acs.figshare.com/articles/dataset/Reversible_Near_Infrared_Blue_Mechanofluorochromism_of_Aminobenzopyranoxanthene/2163802
Mechanochromic organic molecules
(MOMs) that exhibit a large difference
of fluorescence wavelength between two states have important potential
applications, but few such compounds are known. Here, we report a
new MOM, <i>cis</i>-ABPX01<sup>0</sup>, which shows switchable
near-IR and blue fluorescence responses. Detailed spectrophotometric
and single-crystal X-ray analyses revealed that the near-IR fluorescence
is attributable to fluorescence from slip-stacked dimeric structures
in crystals, while the blue fluorescence is attributable to fluorescence
from the monomer. Switching between the two is achieved by dynamic
structural interconversion between the two molecular packing arrangements
in response to mechanical grinding and solvent vapor-fuming.
2015-05-27 00:00:00
exhibit
fluorescence wavelength
Mechanofluorochromism
AminobenzopyranoxantheneMechanochromic
switchable
arrangement
monomer
interconversion
Switching
application
Reversible
molecule
compound
analyses
fluorescence responses
dimeric
crystal