Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, UK.
J Phys Condens Matter. 2013 Feb 27;25(8):085505. doi: 10.1088/0953-8984/25/8/085505. Epub 2013 Jan 30.
Ru L(2,3) edge x-ray absorption near-edge spectroscopy spectra of four compounds [Ru(SO(2))(NH(3))(4)X]Y (X = water, Y = (±)-camphorsulfonate(2); X =water, Y = tosylate(2); X =isonicotinamide, Y = tosylate(2); X =pyridine, Y = triflate(2)) are reported before and after optical excitation, which causes photoinduced linkage isomerism of the SO(2) ligand. Principal component analysis reveals consistent changes in the spectra upon photoisomerization, suggesting a partial oxidation of the Ru ion. These results demonstrate that x-ray absorption near-edge spectroscopy is an effective means of probing photoinduced linkage isomerism.
报道了在光激发前后四种化合物[Ru(SO(2))(NH(3))(4)X]Y（X = 水，Y = (±)-樟脑磺酸酯(2)；X = 水，Y = 对甲苯磺酸盐(2)；X = 异烟酰胺，Y = 对甲苯磺酸盐(2)；X = 吡啶，Y = 三氟甲磺酸酯(2))的 Ru L(2,3) 边缘 X 射线吸收近边光谱。主成分分析表明，光致异构化后光谱发生了一致的变化，表明 Ru 离子发生了部分氧化。这些结果表明，X 射线吸收近边光谱是探测光致键异构化的有效手段。
