Synthesis, Crystal Structure, and Second-Order Nonlinear Optical Properties of New Stilbazolium Salts
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2007-01
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Journal Article
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Abstract
Two derivatives of the highly nonlinear optical crystal DAST (4-N,N-dimethylamino-4‘-N‘-methyl-stilbazolium tosylate) with m-trifluoromethylbenzene-sulfonate (DSMFS) and p-trifluoromethylbenzenesulfonate (DSPFS) replacing the p-toluenesulfonate of DAST have been synthesized and characterized. X-ray crystallographic analyses revealed that the crystal structure of DSPFS is monoclinic Cc and very similar to that of DAST, whereas DSMFS possesses a centrosymmetric structure with two molecules with different orientations on one site. A Kurtz powder test has shown that DSPFS exhibits a large second-order optical nonlinearity 3 orders of magnitude greater than that of the urea standard.
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7 (1)
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83 - 86
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American Chemical Society
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03306 - Nesper, Reinhard (emeritus)
02024 - Small Molecule Crystallography Center
03255 - Günter, Peter (emeritus)