10.1021/ja4102634.s004
Guangfeng Liu
Guangfeng
Liu
Jie Liu
Jie
Liu
Yang Liu
Yang
Liu
Xutang Tao
Xutang
Tao
Oriented
Single-Crystal-to-Single-Crystal Phase Transition
with Dramatic Changes in the Dimensions of Crystals
American Chemical Society
2014
Dramatic Changes
Dimensions
crystal dimensions
Oriented
CrystalsWe report
cocrystal
phenomenon
polymorph
CuQ
basis
pattern
mechanism
thickness
Phase
Transition
ambient conditions
convert
transition
analysis
length
phase
stimulation
2014-01-15 00:00:00
Media
https://acs.figshare.com/articles/media/Oriented_Single_Crystal_to_Single_Crystal_Phase_Transition_with_Dramatic_Changes_in_the_Dimensions_of_Crystals/2332201
We report here a new polymorph of
cocrystal CuQ<sub>2</sub>-TCNQ
that shows an oriented single-crystal-to-single-crystal phase transition
along its <i>a</i>-axis at ambient conditions. Upon mechanical
stimulation, it converts into another polymorph accompanied by almost
doubling its length and halving its thickness. Our crystallographic
studies indicate the dramatic changes in crystal dimensions resulted
from the prominent changes of molecular stacking patterns. A reasonable
mechanism for the phenomenon was proposed on the basis of the structural,
microscopic, and thermal analysis.