十二甲-密-十二甲酸盐的活性盐的合成和稳定性(2-)
Sergei V Ivanov1, Susie M Miller, Oren P Anderson
1Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
Journal of the American Chemical Society
|April 17, 2003
概括
这项研究报告了稳定的B(12)F(12)(2-) 盐的合成和表征. 这些盐具有显著的化学和热稳定性,表明它们在各种化学应用中具有强大的弱协调离子的潜力.
科学领域:
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
背景情况:
- 新型离子的开发对于推进化学合成和材料科学至关重要.
- 弱协调性离子是催化和电化学应用中必不可少的组成部分.
- 十二酸盐,B(12) H(12) ((2-),是已知的稳定的无机集群,但其化模拟物具有独特的特性.
研究的目的:
- 为了合成和表征B(12)F(12)(2-) 离子的各种盐.
- 评估B(12)F(12)(2-) 离子及其盐的化学和热稳定性.
- 探索B(12)F(12)(2-) 作为一个强大的弱协调离子的潜在应用.
主要方法:
- 通过K(2) B(12) H(12) 与HF和F(2) /N(2) 的反应合成盐.
- 通过转化反应制备其他盐 (CPh(3)(+),N(n-Bu)(4)(+),NH(n-C(12) H(25))(3)(+),NH(4)(+),Li(+)) 通过转化反应.
- 使用热稳定性测试,使用强酸/和氧化剂的反应性研究,电化学分析和单晶X射线衍射进行表征.
主要成果:
- 已经成功合成了多种B(12)F(12)(2-) 的盐,包括一种可溶于芳香碳化合物溶剂中的可溶盐.
- 该B(12) F(12) ((2-) 离子表现出异常的热稳定性 (高达480°C) 和对强酸,和氧化剂的惰性.
- X射线衍射揭示了[CPh(3)](2)[B(12)F(12)]盐中的离子和离子之间的弱相互作用.
- 电化学研究显示了高氧化潜力 (4.9V与Li(+/0)).
结论:
- 乙二二二二二) 离子在热和化学上都非常稳定.
- 它的强大性质和弱的协调能力使其成为需要稳定离子的应用程序的有希望的候选者.
- 在电池和催化剂等领域,对B(12) F(12) ((2-) 的应用进行进一步研究是有必要的.
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