TY - JOUR
T1 - A π-conjugated system with flexibility and rigidity that shows environment-dependent RGB luminescence
AU - Yuan, Chunxue
AU - Saito, Shohei
AU - Camacho, Cristopher
AU - Irle, Stephan
AU - Hisaki, Ichiro
AU - Yamaguchi, Shigehiro
PY - 2013/6/19
Y1 - 2013/6/19
N2 - We have designed and synthesized a π-conjugated system that consists of a flexible and nonplanar π joint and two emissive rigid and planar wings. This molecular system exhibits respectively red, green, and blue (RGB) emission from a single-component luminophore in different environments, namely in polymer matrix, in solution, and in crystals. The flexible unit gives rise to a dynamic conformational change in the excited state from a nonplanar V-shaped structure to a planar structure, leading to a dual fluorescence of blue and green colors. The rigid and planar moieties favor the formation of a two-fold π-stacked array of the V-shaped molecules in the crystalline state, which produces a red excimer-like emission. These RGB emissions are attained without changing the excitation energy.
AB - We have designed and synthesized a π-conjugated system that consists of a flexible and nonplanar π joint and two emissive rigid and planar wings. This molecular system exhibits respectively red, green, and blue (RGB) emission from a single-component luminophore in different environments, namely in polymer matrix, in solution, and in crystals. The flexible unit gives rise to a dynamic conformational change in the excited state from a nonplanar V-shaped structure to a planar structure, leading to a dual fluorescence of blue and green colors. The rigid and planar moieties favor the formation of a two-fold π-stacked array of the V-shaped molecules in the crystalline state, which produces a red excimer-like emission. These RGB emissions are attained without changing the excitation energy.
UR - http://www.scopus.com/inward/record.url?scp=84879390468&partnerID=8YFLogxK
U2 - 10.1021/ja404198h
DO - 10.1021/ja404198h
M3 - Article
C2 - 23721361
AN - SCOPUS:84879390468
SN - 0002-7863
VL - 135
SP - 8842
EP - 8845
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 24
ER -