10.1021/jacs.5b00877.s005
Masaru Tanioka
Masaru
Tanioka
Shinichiro Kamino
Shinichiro
Kamino
Atsuya Muranaka
Atsuya
Muranaka
Yousuke Ooyama
Yousuke
Ooyama
Hiromi Ota
Hiromi
Ota
Yoshinao Shirasaki
Yoshinao
Shirasaki
Jun Horigome
Jun
Horigome
Masashi Ueda
Masashi
Ueda
Masanobu Uchiyama
Masanobu
Uchiyama
Daisuke Sawada
Daisuke
Sawada
Shuichi Enomoto
Shuichi
Enomoto
Reversible
Near-Infrared/Blue Mechanofluorochromism
of Aminobenzopyranoxanthene
American Chemical Society
2015
exhibit
fluorescence wavelength
Mechanofluorochromism
AminobenzopyranoxantheneMechanochromic
switchable
arrangement
monomer
interconversion
Switching
application
Reversible
molecule
compound
analyses
fluorescence responses
dimeric
crystal
2015-05-27 00:00:00
Dataset
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.