Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-22, 80, Japan.
Chem Commun (Camb). 2011 Jun 21;47(23):6653-5. doi: 10.1039/c1cc11655j. Epub 2011 May 3.
Tetracene octaesters, which were prepared by twofold [2+2+2] cocyclization, were isolated as red, orange, and orange-yellow solids for the methyl, ethyl, and propyl ester derivatives, respectively. X-Ray crystallographic analysis reveals that the difference in solid-state color arises owing to differences in molecular packing.
四环辛酯八酯，通过两次[2+2+2]环三聚反应制备，分别为甲酯、乙酯和丙酯衍生物的红色、橙色和橙黄色固体。X 射线晶体学分析表明，固态颜色的差异是由于分子堆积的不同。
