Department of Chemistry , The University of Adelaide , Adelaide , SA 5005 , Australia.
Institute of Natural and Mathematical Sciences , Massey University , Auckland 0632 , New Zealand.
Org Lett. 2019 Dec 6;21(23):9574-9578. doi: 10.1021/acs.orglett.9b03737. Epub 2019 Nov 20.
Substituted bullvalenes are dynamic shape-shifting molecules that exist within complex reaction networks. Herein, we report the synthesis of di- and trisubstituted bullvalenes and investigate their dynamic properties. Trisubstituted bullvalenes share a common major isomer which shows kinetic metastability. A survey of the thermodynamic and kinetic landscapes through computational analysis together with kinetic simulation provides a map of the internal dynamics of these systems.
取代的牛烯是存在于复杂反应网络中的动态形状转变分子。在此,我们报告了二取代和三取代牛烯的合成,并研究了它们的动态性质。三取代的牛烯具有一个共同的主要异构体,表现出动力学亚稳性。通过计算分析和动力学模拟对热力学和动力学景观进行调查,为这些系统的内部动力学提供了一个图谱。