%0 Journal Article %T Synthesis and Crystal Structures of Phenylethynylpyridinium Derivatives for Second-Order Nonlinear Optics %A Umezawa, Hirohito %A Okada, Shuji %A Oikawa, Hidetoshi %A Matsuda, Hiro %A Nakanishi, Hachiro %J Bulletin of the Chemical Society of Japan %V 78 %N 2 %P 344-348 %@ 0009-2673 %D 2005-02-11 %I Oxford University Press %~ DeepDyve