形成,表征和结合cis-和trans-[PtCl2{Te(CH2) 6}2,cis-trans-[Pt3Cl6{Te(CH2) 6}4,和cis-trans-[Pt4Cl8{Te(CH2)
Marko Rodewald1, J Mikko Rautiainen2, Helmar Görls1
1Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University of Jena, Humboldt Str. 8, 07743 Jena, Germany.
Molecules (Basel, Switzerland)
|November 25, 2023
概括
一个新的-乙烯复合物,[PtCl2{Te(CH2) 6}2] (1),被合成和表征. 在溶解后,它以有利于跨异构体的动态平衡为异构体,其他复合物也被确定.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- -乙烯复合物的合成和表征对于理解它们的结构多样性和反应性至关重要.
- 循环电在有机金属化合物中提供了独特的协调可能性.
研究的目的:
- 为了合成和表征一种新的复合物,其中包括一个周期性甲连接体.
- 研究固态和溶液态的行为,包括异构和多核复合物的形成.
- 探索-乙烯化合物的协调模式和结构特征.
主要方法:
- 合成[PtCl2{Te(CH2)6}2] (1) 来自Te(CH2)6和cis-[PtCl2(NCPh) 2).
- 单晶X射线衍射用于结构确定1,2,3和4的复合体.
- 核磁共振 (NMR) 谱学用于研究溶液状态异体化.
- 密度函数理论 (DFT) 计算和分子中的原子量子理论 (QTAIM) 分析,以获得结合见解.
主要成果:
- 复合物1结晶为cis-和trans-异构体,其中通过动态平衡,trans-异构体在溶液中占主导地位.
- 多核复合体2 ([Pt3Cl6{Te(CH2)6}4]) 和3 ([Pt4Cl8{Te(CH2)6}4]) 的形成和结构特征,这些复合体具有罕见的桥梁 Telluroether 连接物.
- 在再结晶时识别了一个DMSO-添加物复合物4 ([PtCl2{S(O) ((CD3) 2}{Te(CH2) 6})).
结论:
- 这项研究突出了复合物与循环乙烯的丰富结构化学,包括异构化和复杂的多核物种的形成.
- 桥接 Telluroether 连接体在这些白金集群的组装中发挥着重要作用.
- DFT和QTAIM分析为合成复合物的电子结构和结合特性提供了宝贵的见解.
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