硫化与一氧化碳和氧化的反应性
Nathaniel J Hartmann1, Guang Wu1, Trevor W Hayton1
1Department of Chemistry and Biochemistry, University of California Santa Barbara , Santa Barbara, California 93106, United States.
Journal of the American Chemical Society
|September 9, 2016
概括
这项研究探讨了硫化与一氧化碳和一氧化的反应. 它揭示了新的复合物的形成以及在生物系统中重要的化离子.
科学领域:
- 无机化学
- 有机金属化学
- 生物有机化学
背景情况:
- 过渡金属硫化物在生物过程中至关重要.
- 了解它们与小分子的反应性是生物无机化学的关键.
- 硫化复合物为研究这种反应提供了一个独特的平台.
研究的目的:
- 调查一个掩盖的终端硫化复合物与一氧化碳 (CO) 和氧化 (NO) 的反应性.
- 描述这些反应产生的产物.
- 确认从氧化反应中形成化离子.
主要方法:
- 硫化复合物的合成和表征[K(18-皇冠-6) ][L(tBu)) Ni ((II) ((S) ].
- 复合物与一氧化碳 (CO) 和氧化 (NO) 的反应.
- 由此产生的复合物和离子的分离和结构确定.
主要成果:
- 硫化复合物与二氧化碳发生反应,形成碳化硫化复合物,[K(18-皇冠-6) ][L(tBu)) Ni ((II) ((S,C:η ((2) -COS) ].
- 与NO的反应产生了酸,[{L}tBu}Ni{NO}]和酸离子,[{K}18-皇冠-6}SSNO.
- 化离子 (SSNO) 的分离提供了第一次证据,证明过渡金属硫化物与NO反应形成了这种生物相关物种.
结论:
- 被掩盖的硫化复合体对CO和NO具有明显的反应性.
- 从NO反应中形成酸离子是生物无机化学的一个重要发现.
- 这项工作扩大了对过渡金属硫化物复合物的小分子激活的理解.
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