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乙烯与和一氧化碳的光反应
Klara Edel1, Matthias Krieg1, Dirk Grote2
1Institut für Organische Chemie, Universität Tübingen , Auf der Morgenstelle 18, 72076 Tübingen, Germany.
Journal of the American Chemical Society
|October 11, 2017
概括
使用光谱学研究了反应性中间体烯. 它与有可逆的反应,与一氧化碳有不可逆的反应,形成新型类甲和类甲.
科学领域:
- 有机金属化学
- 光谱学
- 摄影化学
背景情况:
- 在正式去除两个结合伙伴后, (BR3) 可以产生 (RB).
- 玻利是各种化学反应中的反应性中间体.
- 乙烯 (PhB) 是通过二挤出合成的.
研究的目的:
- 调查乙烯 (PhB) 的特性和反应性.
- 使用光谱方法来描述烯及其反应产物.
- 探索烯与N2和CO等小分子的光化学反应.
主要方法:
- 在冷条件下隔离矩阵.
- 紫外线/紫外线,红外线和ESR光谱用于表征.
- 密度函数理论 (DFT) 计算用于结构分析.
主要成果:
- 乙烯在375 nm (S0 → S2) 呈现吸收带,在518 nm (S0 → S1) 呈现弱带.
- 在光化学条件下,烯与N2反应可逆,与CO反应不可逆.
- 这些光产品,PhBNN和PhBCO,具有三重电子基态和线性结构,由DFT证实.
结论:
- 乙烯对N2和CO具有电友反应性.
- 这项研究提供了第一个对玻尿酸和的类型的例子.
- 突出了烯的反应性,展示了其作为合成前体的潜力.
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