New quiolinium polymorph with optimal packing for maximal off-diagonal nonlinear optical response

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The influence of polymorphism on the nonlinear optical properties of HMQ-MBS (2-(4-hydroxy-3-methoxystyryl)-1-methylquinolinium 4-methoxybenzenesulfonate) crystals is investigated. By changing the solvent for crystal growth, a new polymorph has been found. While the previously reported alpha-phase of HMQ-MBS, having monoclinic Pc space group symmetry exhibits an optimal molecular packing for maximizing the diagonal component of the second-order nonlinear optical response, the beta-phase of HMQ-MBS has monoclinic Psi space group symmetry and exhibits an optimal molecular packing for maximizing the off-diagonal response. HMQ-MBS is therefore a very interesting compound for a wide range of second-order nonlinear optical applications. (C) 2012 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2013-02
Language
English
Article Type
Article
Keywords

SINGLE-CRYSTALS; GROWTH; DAPSH

Citation

DYES AND PIGMENTS, v.96, no.2, pp.435 - 439

ISSN
0143-7208
DOI
10.1016/j.dyepig.2012.08.022
URI
http://hdl.handle.net/10203/174568
Appears in Collection
CH-Journal Papers(저널논문)
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