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Issue 4, 2012
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Novel global-like second-order nonlinear optical dendrimers: convenient synthesis through powerful click chemistry and large NLO effects achieved by using simple azo chromophore

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Abstract

In this paper, global-like dendrimers, G1-TPA, G2-TPA and G3-TPA, bearing 9, 21 and 45 azobenzene chromophore moieties, respectively, were conveniently prepared with high purity and satisfactory yields, through the combination of divergent and convergent approaches, coupled with the utilization of the powerful Sharpless “click” reaction. Due to their perfect 3D structure and the isolation effect of the exterior benzene moieties and the interior triazole rings, these global-like dendrimers exhibited large d33 (a second harmonic generation coefficient) values, e.g., 246.0 pm V−1 for G3-TPA, which, to the best of our knowledge, is a new record reported so far for simple azo chromophore moieties.

Graphical abstract: Novel global-like second-order nonlinear optical dendrimers: convenient synthesis through powerful click chemistry and large NLO effects achieved by using simple azo chromophore

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Article information


Submitted
23 Oct 2011
Accepted
18 Jan 2012
First published
19 Jan 2012

Chem. Sci., 2012,3, 1256-1261
Article type
Edge Article

Novel global-like second-order nonlinear optical dendrimers: convenient synthesis through powerful click chemistry and large NLO effects achieved by using simple azo chromophore

W. Wu, L. Huang, C. Song, G. Yu, C. Ye, Y. Liu, J. Qin, Q. Li and Z. Li, Chem. Sci., 2012, 3, 1256
DOI: 10.1039/C2SC00834C

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