The solid-state structures of a butadiynylene-linked bidentate halogen bond donor, both as a single component and as a co-crystal with tetra-n-butylammonium iodide, are discussed. Solution-phase binding data indicate that this donor, which possesses only a single degree of conformational freedom, interacts with halides in a 1â:â1 stoichiometry through a convergent binding mode. In contrast, it forms a zigzag-type chain with iodide in the solid state. The X-ray crystallographic data enable detailed studies of the changes in molecular structure and supramolecular organization that accompany the formation of a halogen-bonded network.
本文讨论了一种
丁二烯连接的双叉卤素键供体的固态结构,这种供体既可以是单一成分,也可以是与四正丁基
碘化铵的共晶体。溶液相结合数据表明,这种只具有单构象自由度的供体通过收敛结合模式以 1:1 的配比与卤化物相互作用。与此相反,它在固态下与
碘化物形成人字形链。通过 X 射线晶体学数据,可以详细研究伴随卤素键网络形成的分子结构和超分子组织的变化。