质子启动的可逆基 - 顶端挤出在宏多面基基纳博中
Jonathan Bould1, Miroslava Litecká1, William Clegg2
1Institute of Inorganic Chemistry of the Czech Academy of Sciences, 250 68 Husinec-Řež č.p. 1001, Czech Republic.
基纳博离子的质子化触发了根本性的重组,形成了新的中性物种. 脱还原会再生原来的离子,而进一步的反应会产生稳定的化合物或分解产物.
科学领域:
- 无机化学 无机化学
- 集团化学 集团化学
- 主要组 元素化学 元素化学
背景情况:
- 基纳博阳离子[E2B17H18]- (E = S, Se) 具有宏多面结构,具有两个相同的10顶尖子集群.
- 了解集群重组和反应性对于合成新型含化合物至关重要.
研究的目的:
- 为了研究质子化甲基纳博离子的结构和化学后果.
- 为了探索由此产生的中性物种的反应性和稳定性.
- 描述新集群架构和转换的特征.
主要方法:
- [E2B17H18] - 离子 (E = S, Se) 的质子化.
- 单晶X射线衍射 (SCXRD) 用于2a的结构确定.
- 多元分子核磁共振光谱 (实验和DFT计算) 用于表征.
- 密度函数理论 (DFT) 计算用于光谱分析和机械洞察力.
主要成果:
- 质子化诱导了激进的集群重组,产生了转移稳定的中性E2B17H19物种 (2a,2b),具有两个不同的nido-10-vertex子集群.
- 一个石化原子被挤出,形成一个桥梁单位μ2-{EH},并且可以在去质子化后重新整合.
- 化合物2a和2b经过脱,形成已知的E2B17H17 (3),而2b也通过损失产生SeB17H19 (4).
结论:
- 石墨烯离子的质子化导致了独特的集群重组和石墨烯原子的挤出.
- 转移稳定的中性物种表现出可逆的脱和随后的性脱.
- 这些发现扩大了团已知的化学成分,并突出了新型结构和化合物的途径.
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