A tetracene dimer, 5,5'-bitetracene (55BT), has successfully been synthesized for the first time and its structure was confirmed by X-ray single crystal analysis. The electrochemical and optical properties of 55BT were investigated and compared to those of tetracene. Although the photoluminescence quantum yield of 55BT was slightly higher than that of tetracene, the results of the transient absorption spectroscopy suggested the triplet formation by singlet fission in solution.

中文翻译：

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5,5'-Bitetracene的合成与表征

并四聚体二聚体5,5'-链烷（55BT）首次成功合成，其结构通过X射线单晶分析得到了证实。研究了55BT的电化学和光学性能，并将其与并四苯进行了比较。尽管55BT的光致发光量子产率略高于并四苯，但瞬态吸收光谱法的结果表明溶液中单重裂变形成了三重态。