Synthesis, optical properties and crystal structure of (E,E)-1,3-(3,4:9,10-dibenzododeca-1,11-diene-5,7-diyne-1,12-diyl)benzene oleh Hikaru Watanabe, Takuma Sato, Michiki Sumita, Mei Shiroyama, Daichi Sugawara, Tomoki Tokuyama, Yasuhiro Okuda, Kan Wakamatsu, Haruo Akashi, Akihiro Orita