Photoconversion of 6, 13-α-Diketopentacene in the Crystalline Phase
Photoconversion of 6, 13-α-Diketopentacene in the Crystalline Phase
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6, 13-α-二酮并五苯在晶相中的光转化
DOI：
10.1039/c4cp01607f
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
H. Yamada
中科院分区：
文献类型：
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作者：
S. Masuo*;K. Tanaka;M. Oe;H. Yamada
研究了结晶相前体 6,13-二氢-6,13-乙醇并五苯-15,16-二酮 (PDK) 光转化为并五苯的情况。当用 470 nm 光照射时，光转换甚至在结晶相中也进行。尽管晶相光转换速率比溶液中慢得多，但在长时间的光照射下实现了定量光转换。通过使用共焦显微镜观察 PDK 晶体的荧光图像和光谱，PDK 的光转换也在单微米大小的晶体水平上得到了证实。当晶体中的一些 PDK 分子光转化为并五苯时，观察到晶体的破坏。这些结果表明PDK的晶相光转换是通过晶体的破坏进行的。结果实现了定量光转换。
The photoconversion of a crystalline-phase precursor, 6,13-dihydro-6,13-ethanopentacene-15,16-dione (PDK), into pentacene was examined. Upon irradiation with 470 nm light, the photoconversion proceeded even in the crystalline phase. Although the rate of the crystalline phase photoconversion was much slower than that in solution, quantitative photoconversion was achieved upon lengthy photoirradiation. The photoconversion of PDK was also confirmed at the single μm-sized crystal level by observing fluorescence images and spectra of the PDK crystal using confocal microscopy. Destruction of the crystal was observed when some of the PDK molecules in the crystal were photoconverted into pentacene. These results indicate that the crystalline-phase photoconversion of PDK proceeded through the destruction of the crystal. Quantitative photoconversion was achieved as a result.