Chiral features of metal phthalocyanines sitting atop the pre-assembled TiOPc monolayer on Ag(111)

Hao Zhu; Huanjun Song; Wenhui Zhao; Zhantao Peng; Dan Liu; Lingbo Xing; Jingxin Dai; Zhichao Huang; Peilin Liao; Yuan Wang; Kai Wu

doi:10.1039/C9CP03198G

Chiral features of metal phthalocyanines sitting atop the pre-assembled TiOPc monolayer on Ag(111)†

Hao Zhu,

^a Huanjun Song,

^ab Wenhui Zhao,

^a Zhantao Peng,

^a Dan Liu,

^a Lingbo Xing,

^a Jingxin Dai,

^a Zhichao Huang,

^a Peilin Liao,*^c Yuan Wang

*^a and Kai Wu

*^a

Author affiliations

* Corresponding authors

^a BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
E-mail: kaiwu@pku.edu.cn, wangy@pku.edu.cn

^b Research Institute of Aerospace Special Materials and Processing Technology, Beijing, China

^c School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, USA
E-mail: peilin.lpl@gmail.com

Abstract

The chiral features of the top-layer TiOPc molecules on monolayered TiOPc assembly on Ag(111) were carefully investigated by scanning tunnelling microscopy and local work function measurements. Combined with the density functional theory calculations, systematic experimental explorations of the TiOPc/TiOPc, CuPc/TiOPc and TiOPc/CuPc systems on Ag(111) revealed that the chirality originated from asymmetric electronic interactions rather than conformational change, which might be related to the high performance of the photoelectronic devices based on the MPc complexes.

Physical Chemistry Chemical Physics

Chiral features of metal phthalocyanines sitting atop the pre-assembled TiOPc monolayer on Ag(111)†

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Chiral features of metal phthalocyanines sitting atop the pre-assembled TiOPc monolayer on Ag(111)

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