TY - JOUR
T1 - Complex assembly from planar and twisted π-conjugated molecules towards alloy helices and core-shell structures
AU - Lei, Yilong
AU - Sun, Yanqiu
AU - Zhang, Yi
AU - Zhang, Hongyang
AU - Zhang, Haihua
AU - Meng, Zhengong
AU - Wong, Wai Yeung
AU - Yao, Jiannian
AU - Fu, Hongbing
PY - 2018/12/1
Y1 - 2018/12/1
N2 -
Integrating together two dissimilar π-conjugated molecules into controlled complex topological configurations remains a largely unsolved problem owing to the diversity of organic species and their respective different assembly features. Here, we find that two structurally similar organic semiconductors, 9,10-bis(phenylethynyl)anthracene (BA) and 5,12-bis(phenylethynyl)naphthacene (BN), co-assemble into two-component helices by control of the growth kinetics as well as the molar ratio of BA/BN. The helical superstructures made of planar and twisted bis(phenylethynyl) derivatives can be regarded as (BA)
x
(BN)
1−x
alloys, which are formed due to compatible structural relationship between BA and BN. Moreover, epitaxial growth of (BA)
x
(BN)
1−x
alloy layer on the surface of BA tube to form BA@(BA)
x
(BN)
1−x
core-shell structure is also achieved via a solute exchange process. The precise control over composition and morphology towards organic alloy helices and core-shell microstructures opens a door for understanding the complex co-assembly features of two or more different material partners with similar structures.
AB -
Integrating together two dissimilar π-conjugated molecules into controlled complex topological configurations remains a largely unsolved problem owing to the diversity of organic species and their respective different assembly features. Here, we find that two structurally similar organic semiconductors, 9,10-bis(phenylethynyl)anthracene (BA) and 5,12-bis(phenylethynyl)naphthacene (BN), co-assemble into two-component helices by control of the growth kinetics as well as the molar ratio of BA/BN. The helical superstructures made of planar and twisted bis(phenylethynyl) derivatives can be regarded as (BA)
x
(BN)
1−x
alloys, which are formed due to compatible structural relationship between BA and BN. Moreover, epitaxial growth of (BA)
x
(BN)
1−x
alloy layer on the surface of BA tube to form BA@(BA)
x
(BN)
1−x
core-shell structure is also achieved via a solute exchange process. The precise control over composition and morphology towards organic alloy helices and core-shell microstructures opens a door for understanding the complex co-assembly features of two or more different material partners with similar structures.
UR - http://www.scopus.com/inward/record.url?scp=85055071761&partnerID=8YFLogxK
U2 - 10.1038/s41467-018-06489-3
DO - 10.1038/s41467-018-06489-3
M3 - Journal article
C2 - 30341293
AN - SCOPUS:85055071761
VL - 9
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 4358
ER -