Diphenylene-Tetracyanoquinodimethane Cocrystals as Stable Organic Rectifiers

Rui Li; Jinfeng Li; Yajing Sun; Xiaotao Zhang; Wenping Hu

doi:10.1002/cplu.201900197

Diphenylene-Tetracyanoquinodimethane Cocrystals as Stable Organic Rectifiers

Chempluschem. 2019 Sep;84(9):1245-1248. doi: 10.1002/cplu.201900197. Epub 2019 Jun 12.

Authors

Rui Li¹, Jinfeng Li¹, Yajing Sun¹, Xiaotao Zhang¹, Wenping Hu^{1

2}

Affiliations

¹ Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science, Tianjin University Collaborative Innovation Canter of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China.
² Key Laboratory of Organic Solids Institute of Chemistry, Chinese Academy of Science (ICCAS), Beijing, 100190, P. R. China.

PMID: 31944064
DOI: 10.1002/cplu.201900197

Abstract

A promising cocrystal material that acts as a rectifier was prepared by a simple procedure of solution volatilization. (E)-1,2-diphenylethene (STB) and 7,7',8,8'-tetracyanoquinodimethane (TCNQ) were used as donor and acceptor respectively, and aggregate in an ordered fashion in the stilbene-tetracyanoquinodimethane (STC) cocrystal that comprises 1 : 1 donor/acceptor mixed-stacked charge-transfer (CT) complexes. The strong CT interaction between the donor and acceptor is the main driving force for the self-assembly. The cocrystals show rectifying characteristics with a rectification ratio of 26. This result suggests that cocrystal engineering provides a great possibility to obtain rectifying materials from small, readily available organic molecules.

Keywords: charge transfer; cocrystals; donor-acceptor complexes; rectifiers; self-assembly.

Publication types

Research Support, Non-U.S. Gov't