Synthesis, structure, and nonlinear optical properties of diarylpolyynes |
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Authors: | Luu Thanh Elliott Erin Slepkov Aaron D Eisler Sara McDonald Robert Hegmann Frank A Tykwinski Rik R |
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Affiliation: | Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2 Canada. |
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Abstract: | A series of alpha,omega-diarylpolyynes has been synthesized. In addition to the synthesis of three hexaynes (3a-c), a notably improved synthesis of 1,16-diphenylhexadecaoctayne (5) is described. The third-order nonlinear optical characteristics for these molecules have been studied and show a substantial increase in molecular hyperpolarizability (gamma) as a function of increasing length. The unusual solid-state structures of compounds 3a and 3b are reported. |
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