Crystallization-induced emission enhancement of highly electron-deficient dicyanomethylene-bridged triarylboranes

Guanming Liao; Jia Zhang; Xiaoyan Zheng; Xiaodi Jia; Jialiang Xu; Fenggui Zhao; Nan Wang; Kanglei Liu; Pangkuan Chen; Xiaodong Yin

doi:10.1039/D1CC03311E

Crystallization-induced emission enhancement of highly electron-deficient dicyanomethylene-bridged triarylboranes†

Guanming Liao,^ab Jia Zhang,^a Xiaoyan Zheng,

*^a Xiaodi Jia,^c Jialiang Xu,

^c Fenggui Zhao,^a Nan Wang,

^a Kanglei Liu,^a Pangkuan Chen

*^a and Xiaodong Yin

*^a

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* Corresponding authors

^a Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China
E-mail: yinxd18@bit.edu.cn, pangkuan@bit.edu.cn, xiaoyanzheng@bit.edu.cn

^b School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, P. R. China

^c School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, P. R. China

Abstract

A highly electron-deficient dicyanomethylene-bridged triarylborane, ^FMesB-TCN, was reported with a low-lying LUMO and crystallization-induced emission enhancement in its block-shape crystal. DFT calculations revealed lower re-organization energy of the block crystal than that of the weakly emissive acicular crystal. This work explored a novel boron-containing skeleton with interesting optical properties.

Chemical Communications

Crystallization-induced emission enhancement of highly electron-deficient dicyanomethylene-bridged triarylboranes†

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Crystallization-induced emission enhancement of highly electron-deficient dicyanomethylene-bridged triarylboranes

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