New “X-type” second-order nonlinear optical (NLO) dendrimers: fewer chromophore moieties and high NLO effects

Runli Tang; Shengmin Zhou; Wendi Xiang; Yujun Xie; Hong Chen; Qian Peng; Gui Yu; Binwen Liu; Huiyi Zeng; Qianqian Li; Zhen Li

doi:10.1039/C5TC00182J

New “X-type” second-order nonlinear optical (NLO) dendrimers: fewer chromophore moieties and high NLO effects†

Runli Tang,^a Shengmin Zhou,^a Wendi Xiang,^a Yujun Xie,^a Hong Chen,^a Qian Peng,^b Gui Yu,^b Binwen Liu,^c Huiyi Zeng,^c Qianqian Li^a and Zhen Li*^a

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* Corresponding authors

^a Department of Chemistry, Wuhan University, Wuhan 430072, China
E-mail: lizhen@whu.edu.cn, lichemlab@163.com
Fax: +86 027 68755363

^b Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100080, China

^c Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou 350002, China

Abstract

New types of “X-type” NLO dendrimers, C2 and C3, in which the chromophore moieties were arranged in order, were rationally designed. The special topology of the chromophore moieties contributed a great deal to the good NLO performance of C2 and C3: the d₃₃ value of C2 (containing only five chromophore moieties) was 157.4 pm V⁻¹, while that of C3 (containing nine chromophore moieties) achieved 195.2 pm V⁻¹, much larger than that of C1 (74.7 pm V⁻¹, containing three chromophore moieties) and the fifth generation dendrimer (G5) (193.1 pm V⁻¹, bearing 62 pieces of chromophore moieties). Through careful experimental and theoretical analysis, their structure–property relationship was explained, and discussed in detail.

Journal of Materials Chemistry C

New “X-type” second-order nonlinear optical (NLO) dendrimers: fewer chromophore moieties and high NLO effects†

Abstract

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New “X-type” second-order nonlinear optical (NLO) dendrimers: fewer chromophore moieties and high NLO effects

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