一个单金属双体复合体
Madeleine C Levis1, Monte L Helm1,2, John F C Turner1
1Department of Chemistry, University of Sussex, Brighton, UK.
研究人员合成和表征了第一个bis ((cyaphido) 复合体,转-[Ru ((dppe) 2(CP) 2]. 这项工作证明了在复合体中多个cyapido配体的稳定性和合成可访问性.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 酸盐化学 酸盐化学
背景情况:
- 酸连接体 (CP) 是新型含的酸连接体 (CN) 的类似物.
- 锡亚菲多连接体的协调化学和电子特性尚未得到充分理解.
- 之前的研究主要集中在单基亚菲多复合物上.
研究的目的:
- 合成和表征第一个bis ((cyaphido) 复合体.
- 为了研究具有多个cyapido连接体的复合物的合成可访问性和稳定性.
- 为了比较ciaphido和cyano配体的电子特性.
主要方法:
- 通过Me3SiCP的协调和脱离,从[Ru(dppe) 2CP]+中合成转化[Ru(dppe) 2CP的合成.
- 从相同的阳离子和NaCN中合成异构体模拟物trans-[Ru(dppe) 2(CN) ((CP) ].
- 使用X射线晶体学和光谱学方法合成的复合物的结构特征.
主要成果:
- 第一个双 (cyaphido) 复合体,转-[Ru(dppe) 2(CP) 2,已成功合成和表征.
- 这项研究表明了携带多个cyapido连接体的鲁复合物的合成可行性和稳定性.
- 直接比较显示,与蓝配体相比,赛亚菲多配体表现出增强的π-酸度和更高的π-捐赠者特征.
结论:
- 双 (Bis(cyaphido) 复合体是合成可获得的和稳定的.
- 与其同类电子同类物 - - 色体相比,色体具有独特的电子特性.
- 这项工作扩大了有机金属化学的范围,涉及含的配体.
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