A diamondoid net sustained by halogen bonds: employing a cyclobutane to generate a tetrahedral architecture
A diamondoid net sustained by halogen bonds: employing a cyclobutane to generate a tetrahedral architecture
复制标题
DOI：
10.1039/d0ce00627k
复制
发表时间：
2020-07-14
期刊：
影响因子：
3.1
通讯作者：
Groeneman, Ryan H.
中科院分区：
文献类型：
--
作者：
Oburn, Shalisa M.;Santana, Carlos L.;Groeneman, Ryan H.
采用固态生成的节点构建了卤素键合的八重互穿类金刚石网络。具体而言，四面体状结构，rctt-四（4-吡啶基）环丁烷（4，4 '-TPCB），与刚性卤素键供体，1，4-二碘全氯苯结合的共结晶，实现了金刚石状结构。在共晶体中，发现4，4 '-TPCB形成三种类型的键，其基于由中心环丁烷环的固有rctt-立体化学实现的一个顺式和两个反式取向。因此，4，4 '-TPCB能够适应金刚烷网的约束，这是由于侧接的4-吡啶基的柔性。
A halogen-bonded eight-fold interpenetrated diamondoid net was constructed employing a node generated in the solid state. Specifically, co-crystallization of a tetrahedral-like tecton, rctt-tetrakis(4-pyridyl)cyclobutane (4,4'-TPCB), combined with a rigid halogen-bond donor, 1,4-diiodoperchlorobenzene, achieved a diamondoid architecture. In the co-crystal, 4,4'-TPCB is found to form three types of linkages based on one cis- and two transorientations enabled by the intrinsic rctt-stereochemisty of the central cyclobutane ring. Thus, 4,4'-TPCB is able to adapt to the constraints of the diamondoid net owing to the flexibility of the pendant 4-pyridyl groups.