Crystal polymorphism and crystalline-state photochromism of a rhodium dithionite complex with <i>n</i>-methoxypropyl moieties
Crystal polymorphism and crystalline-state photochromism of a rhodium dithionite complex with <i>n</i>-methoxypropyl moieties
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含<i>n</i>-甲氧基丙基部分的连二亚硫酸铑配合物的晶体多晶型和晶态光致变色现象
DOI：
10.1039/d1ce01613j
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发表时间：
2022
期刊：
影响因子：
3.1
通讯作者：
Nakai Hidetaka
中科院分区：
文献类型：
--
作者：
Kajiwara Yuu;Nakai Hidetaka
以n-甲氧丙基四甲基环戊二烯（CpMPro = η5-C5 Me 4 nC 3 H6 OCH 3）和光敏连二亚硫酸根（μ-O2 SSO 2）为配体的铑双核配合物[（CpMProRh）2（μ-CH 2）2（μ-O2 SSO 2）]（1 MPro）形成了两种多晶型晶体（一种为块状α晶体，另一种为片状β晶体）。通过含时X射线衍射实验，研究了β晶体中1 MPro的晶态光致变色，包括从μ-O_2SSO_2络合物（1 MPro）到相应的μ-O_2SOSO络合物（2 MPro）的光致异构化和从2 MPro到1 MPro的热逆反应。将β晶体的结果与α晶体的结果进行了比较：β晶体的热反反应时间是α晶体的8倍。
A rhodium dinuclear complex having n-methoxypropyltetramethylcyclopentadienyl (CpMPro = η5-C5Me4nC3H6OCH3) and photoresponsive dithionite (μ-O2SSO2) ligands, [(CpMProRh)2(μ-CH2)2(μ-O2SSO2)] (1MPro), was found to form two polymorphic crystals (a previously reported block-like α-crystal and a newly obtained plate-like β-crystal). The crystalline-state photochromism of 1MPro in the β-crystal, which involves photoisomerization from the μ-O2SSO2 complex (1MPro) to the corresponding μ-O2SOSO complex (2MPro) and a thermal back-reaction from 2MPro to 1MPro, was successfully studied by performing time-dependent X-ray diffraction experiments. The results obtained from the β-crystal were compared with the previous results obtained from the α-crystal: the thermal back-reaction in the β-crystal is eight times longer than that in the α-crystal.