Crystal structure of light-induced colored species from photochromic dimer of 1,4-bis(imidazolyl)tetrafluorobenzene
Crystal structure of light-induced colored species from photochromic dimer of 1,4-bis(imidazolyl)tetrafluorobenzene
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DOI：
10.1246/cl.2005.1552
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发表时间：
2005-11-05
影响因子：
1.6
通讯作者：
Abe, J
中科院分区：
文献类型：
--
作者：
Kikuchi, A;Abe, J
在紫外光照射下，1,4-双(咪唑基)四氟苯的光致变色二聚体在溶液和固体中产生有色的瞬时物质。尽管形成光致变色二聚体的二聚反应阻碍了有色物质在室温下的分离和表征，但可以从200K的光照射二聚体的甲苯溶液中成功获得有色物质的单晶，并且通过X射线衍射分析明确地确定了有色物质的分子结构。
On irradiation with UV light, the photochromic dimer of 1,4-bis(imidazolyl)tetrafluorobenzene produced the colored transient species in solution and solid. Though the dimerization reaction to form the photochromic dimer prevents the isolation and characterization of the colored species at room temperature, the single crystals of the colored species could be successfully obtained from the light-irradiated toluene solution of the dimer at 200K, and the molecular structure of the colored species is unambiguously determined by the X-ray diffraction analysis.