In situ STM investigation of two-dimensional chiral assemblies through Schiff-base condensation at a liquid/solid interface.
Nanoscaled two-dimensional (2D) chiral architectures are increasingly receiving scientific interest, because of their potential applications in many domains. In this paper, we present a new method for constructing 2D chiral architectures on surface. Based on in situ Schiff-base reaction of achiral dialdehyde with two types of achiral amines at the solid/liquid interface, two chiral species have been directly formed and confirmed by means of a scanning tunneling microscopy (STM) technique. This work introduces a novel strategy to construct 2D surface chirality, which might be applied in fabricating functional films and nanoelectronic devices.
National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China.
Fang-Yun
FY
Hu
Xue-Mei
XM
Zhang
Xiao-Chen
XC
Wang
Shuai
S
Wang
Hai-Qiao
HQ
Wang
Wu-Biao
WB
Duan
Qing-Dao
QD
Zeng
Chen
C
Wang
D000447:Aldehydes / Q000737:chemistry; D000588:Amines / Q000737:chemistry; D016252:Microscopy, Scanning Tunneling; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry
D000447:Aldehydes; D000588:Amines; D011108:Polymers