在十核和八核黄金之间的光诱导异构驱动的结构转化 (I) 硫化物
Liao-Yuan Yao1, Vivian Wing-Wah Yam1
1Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China.
Journal of the American Chemical Society
|March 6, 2015
概括
光辐射诱导黄金 (I) 硫化中的联体异体化,将十金转化为八十十金,具有独特的光物理特性.
科学领域:
- 无机化学 无机化学 有机化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 多核黄金(I) 硫化团以其独特的结构和光物理特性而闻名.
- 连接物异构化可以影响金属集群的核和对称性.
- 了解这些转变是设计新型功能材料的关键.
研究的目的:
- 研究多核黄金中联体异构的结构和光物理后果.
- 描述从一个十金的变化 (I) 到一个八十十金的变化 (I) 集群.
- 探索黄金-黄金结合在集群稳定性和属性的作用.
主要方法:
- 在黄金 (I) 硫化物中对cis-1,2-bis(diphenylphosphino) 乙烯 (dppee) 连接体进行光辐射.
- 使用NMR,质谱,元素分析和单晶X射线衍射进行表征.
- 通过紫外线吸收,辐射和31P NMR光谱学监测溶液中的转化.
主要成果:
- 光辐射诱导的dppee配体的cis-to-trans异体化.
- 这种异质化引发了结构性转变,从一个十金到一个八十十金.
- 由此产生的星团由于核度和对称度的变化,表现出明显不同的光物理行为.
- 黄金的互动对稳定集群至关重要.
结论:
- 连接物异构化是一种可行的途径,可以诱导多核黄金(I) 硫化团中的结构转变.
- 这种转换导致了独特的光物理性质,为光敏材料提供了潜在的潜力.
- 这项研究强调了在集群化学中超分子相互作用的重要性.
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