捐赠体稳定抗 (I) 和 (I) 离子:较重的价值同电子类型的碳素
Mujahuddin M Siddiqui1, Samir Kumar Sarkar1, Mohd Nazish1
1Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany.
Journal of the American Chemical Society
|January 12, 2021
概括
研究人员合成了第一个稳定的二坐标 (I) 和 (I) 离子,这对于理解更重的第15组元素至关重要. 这些新型化合物为重型p块元素的低氧化状态和结合提供了洞察力.
科学领域:
- 无机化学
- 有机金属化学
- 主要组化学
背景情况:
- 较重的15组元素 (如和) 的低价值,双坐标化合物的分离是困难的,因为它们倾向于形成二聚体或寡聚体.
- 现有研究在低氧化状态下稳定这些元素面临挑战,限制了它们独特的化学性质的研究.
研究的目的:
- 报告第一个成功合成和特征的捐赠者稳定两个坐标的 (I) 和 (I) 离子.
- 引入一个具有八个价值电子的15组元素的新类非循环.
- 为了探索更重的,价值同电子类型的碳素.
主要方法:
- 使用石墨 (KC8) 减少和三化物
- 使用循环氨基 (cAAC) 来稳定产生的金属离子.
- 通过NMR光谱,循环电压测量,单晶X射线衍射和计算研究进行表征.
主要成果:
- 成功将两个坐标的Sb (I) 和Bi (I) 离子分离为三盐:[cAAC) 2Sb][OTf]和[cAAC) 2Bi][OTf].
- 化合物1和2代表了一类新型的15组非循环,作为加的较重,价值同电子类型.
- 综合性鉴定证实了这些新型低价值物种的结构和特性.
结论:
- 通过开发捐赠体稳定的双坐标Sb (I) 和Bi (I) 离子,克服了分离这些物种的先前限制.
- 这些发现为探索低价值较重主要组元素的化学过程开辟了新的途径.
- 描述的化合物作为理解这种化学领域的键和反应性的重要模型.
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