Proton-Triggered Hypsochromic Luminescence in 1,1'-(2,5-Distyryl-1,4-phenylene) Dipiperidine.
A proton-triggered hypsochromic luminescent chromophore 1,1'-(2,5-distyryl-1,4-phenylene) dipiperidine (DPD) was designed and synthesized. Upon treatment by hydrochloric acid (HCl), the emission of DPD showed a large hypsochromic shift in both THF solution and microcrystals. Theoretical calculations and powder X-ray diffraction experiments reveal that the switchable emission of DPD originated from the change of the distribution and the spatial arrangement of the frontier molecular orbitals, and the different stacking modes of DPD in microcrystals also contribute to the switchable emission of DPD in aggregates.
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Jinlong
J
Chen
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Suqian
S
Ma
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Jibo
J
Zhang
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Lijuan
L
Wang
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Ling
L
Ye
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Bao
B
Li
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Bin
B
Xu
State Key Laboratory of Supramolecular Structure and Materials, Jilin Unversity, Qianjin Street No. 2699, Changchun 130012, People's Republic of China.
Wenjing
W
Tian
acid/base stimuli; aggregating structure; frontier molecular orbitals; stacking mode; switchable fluorescent emission