| 环金属钌(Ⅱ)亚硝酰配合物的制备及其光化学性质 |
| Preparation and photochemical properties of cyclometalated ruthenium(Ⅱ) nitrosyl complexes |
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| 摘要: 以2-(4-甲基)苯基吡啶为C,N-配体构筑的环金属钌配合物1与NOBF4在不同反应条件下,以较高产率获得了2个环金属钌(Ⅱ)亚硝酰配合物2和3。温度提高和有氧条件更有利于3的生成。核磁共振谱、质谱、红外光谱及单晶结构显示这2个亚硝酰配合物均具有{RuⅡ-NO+}特征。电化学及紫外可见吸收光谱进一步证实了这一点。随后,对钌亚硝酰配合物2在光照下的产物进行分离并通过NMR和质谱表征,结果表明:此类亚硝酰配合物在光照下断裂Ru-NO并释放NO,金属中心以Ru (Ⅱ)稳定存在。 |
| 关键词: 环金属钌配合物 钌亚硝酰配合物 NO 2-苯基吡啶 光解反应 |
| 基金项目: 国家自然科学基金(No.21971258)资助。 |
| Abstract: Complex 1 with 2-(4-methylphenyl)pyridine as C, N-ligand was used to react with NOBF4 under different conditions to afford two cyclometalated ruthenium(Ⅱ) nitrosyl complexes 2 and 3 in high yields. Herein, increasing temperature and aerobic conditions were favored by the generation of 3. NMR, MS, IR, and single-crystal X-ray structure analysis showed that these two nitrosyl complexes have {RuⅡ-NO+} characteristics. This was further confirmed by electrochemistry and UV-Vis absorption spectra. Subsequently, the photolyzed product of ruthenium nitrosyl complex 2 was separated and characterized by NMR and MS spectra. The result showed that such nitrosyl complexes could give a release of NO by the breakage of Ru-NO under the light, along with Ru(Ⅱ) as the oxidation state. |
| Keywords: cyclometalated ruthenium complex ruthenium nitrosyl complex NO 2-phenylpyridine photolysis reaction |
| 投稿时间：2022-11-23 修订日期：2023-04-09 |
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| 王艺荣,李珍,吴俣豪,李襄宏,张丙广.环金属钌(Ⅱ)亚硝酰配合物的制备及其光化学性质[J].无机化学学报,2023,39(5):867-873. |
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