Ampt Kirsten A M, Burling Suzanne, Donald Steven M A, Douglas Susie, Duckett Simon B, Macgregor Stuart A, Perutz Robin N, Whittlesey Michael K
Department of Chemistry, University of York, Heslington, York YO10 5DD, UK.
J Am Chem Soc. 2006 Jun 14;128(23):7452-3. doi: 10.1021/ja0622397.
Low-temperature UV irradiation of the N-heterocyclic carbene complex Ru(IEt2Me2)(PPh3)2(CO)H2 (IEt2Me2 = 1,3-bis(ethyl)-4,5-dimethylimidazol-2-ylidene) leads to a remarkable photoisomerization reaction. By combining in situ photolysis and parahydrogen experiments to characterize the ultimate photoproducts and DFT calculations to interrogate the structures of the key 16-electron intermediates, the importance of both PPh3 and H2 loss pathways has been established.
对氮杂环卡宾配合物Ru(IEt2Me2)(PPh3)2(CO)H2（IEt2Me2 = 1,3 - 双（乙基）- 4,5 - 二甲基咪唑 - 2 - 亚基）进行低温紫外线照射会引发显著的光异构化反应。通过结合原位光解和仲氢实验来表征最终的光产物，并通过密度泛函理论计算来探究关键的16电子中间体的结构，已确定了三苯基膦和氢气损失途径的重要性。
