cg201211e_si_001.pdf (200.42 kB)
C–H···π Interaction Induced Formation of Microtubes with Enhanced Emission
journal contribution
posted on 2012-03-07, 00:00 authored by Cuiping Zhao, Zhongliang Wang, Yinlong Yang, Chao Feng, Wei Li, Yanan Li, Yuping Zhang, Feng Bao, Yuliang Xing, Xiujuan Zhang, Xiaohong ZhangHigh luminescent bis(salicylaldehyde)o-phenylenediimine(salophen)
microtubes with rectangular cross sections were successfully synthesized
by a self-assembly method. Accompanied by the formation of microtubes,
a remarkable enhanced emission was observed. Crystal structure analysis
and theoretical studies were both investigated in detail. It was found
that a conformation change induced by multiple C–H···π
interactions between adjacent molecules was responsible for the formation
of microtubes. The edge-to-face C–H···π
interactions also resulted in molecular structural rigidification,
which made salophen a stronger emitter in microtubes.