Department of Biological Sciences, Webster University, St Louis, Missouri 63119, USA.
Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, USA.
Acta Crystallogr C Struct Chem. 2021 Feb 1;77(Pt 2):111-115. doi: 10.1107/S2053229621000590. Epub 2021 Jan 22.
The formation of a self-interpenetrated honeycomb molecular network based upon 4,6-dichlororesorcinol (4,6-diCl res), a water molecule, and the photoproduct rtct-tetrakis(pyridin-4-yl)cyclobutane (rtct-TPCB) is reported. Interestingly, only three of the four pyridine rings on the central cyclobutane ring are found to engage in O-H...N hydrogen bonds with either the 4,6-diCl res or an included water molecule, resulting in a three-connected net. Notably, the solid (4,6-diCl res)·(rtct-TPCB)·(HO), CHClO·CHN·HO, contains channels that run along the crystallographic b axis, which are found to be interpenetrated. Although rtct-TPCB has been employed as a bridging ligand in the formation of numerous metal-organic materials, surprisingly neither the single-component X-ray structure nor any multi-component molecular solids based upon this stereoisomer have been reported previously. Lastly, the single-crystal X-ray structure of the photoproduct rtct-TPCB is also reported.
本文报道了一种基于 4,6-二氯间苯二酚（4,6-diCl res）、一个水分子和光产物 rtct-四（吡啶-4-基）环丁烷（rtct-TPCB）的自穿插蜂窝状分子网络的形成。有趣的是，在中环丁烷环上的四个吡啶环中，只有三个被发现与 4,6-diCl res 或包含的水分子形成 O-H…N 氢键，从而形成三连接网络。值得注意的是，固态（4,6-diCl res）·（rtct-TPCB）·（HO），CHClO·CHN·HO 中含有沿结晶学 b 轴延伸的通道，这些通道被发现是穿插的。尽管 rtct-TPCB 已被用作形成许多金属有机材料的桥联配体，但令人惊讶的是，以前既没有报道过这种立体异构体的单一成分 X 射线结构，也没有报道过任何基于该立体异构体的多成分分子固体。最后，还报道了光产物 rtct-TPCB 的单晶 X 射线结构。
