Marr Zoe Y, Thapa Magar Rajani, Fournier Bertrand, Benedict Jason B, Rack Jeffrey J
Department of Chemistry, The State University of New York at Buffalo Buffalo NY 14260 USA
Department of Chemistry and Chemical Biology, University of New Mexico Albuquerque NM 87131-001 USA
Chem Sci. 2023 Jun 8;14(26):7279-7284. doi: 10.1039/d3sc01526b. eCollection 2023 Jul 5.
We report the first instance of observing the phototriggered isomerization of dmso ligands on a bis sulfoxide complex, [Ru(bpy)(dmso)], in the crystalline solid state. The solid-state UV-vis spectrum of the crystal demonstrates an increase in optical density around 550 nm after irradiation, which is consistent with the solution isomerization results. Digital images of the crystal before and after irradiation display a notable color change (pale orange to red) and cleavage occurs along planes, (1̄01) and (100), during irradiation. Single crystal X-ray diffraction data also confirms that isomerization is occurring throughout the lattice and a structure that contains a mix of the , and ,/, isomer was attained from a crystal irradiated . irradiation XRD studies reveal that the percentage of the O-bonded isomer increases as a function of 405 nm exposure time.
我们报道了首次在晶体固态下观察到双亚砜配合物[Ru(bpy)(dmso)]上二甲基亚砜（dmso）配体的光触发异构化现象。晶体的固态紫外可见光谱表明，照射后在550nm左右光密度增加，这与溶液异构化结果一致。照射前后晶体的数字图像显示出明显的颜色变化（浅橙色变为红色），并且在照射过程中沿（1̄01）和（100）平面发生解理。单晶X射线衍射数据也证实异构化在整个晶格中发生，并且从照射后的晶体中获得了一种包含顺式和反式异构体混合物的结构。照射XRD研究表明，O键合异构体的百分比随405nm曝光时间的增加而增加。
