Cover Feature: Disappearing Polymorphs in Metal–Organic Framework Chemistry: Unexpected Stabilization of a Layered Polymorph over an Interpenetrated Three‐Dimensional Structure in Mercury Imidazolate (Chem. Eur. J. 8/2020)
Cover Feature: Disappearing Polymorphs in Metal–Organic Framework Chemistry: Unexpected Stabilization of a Layered Polymorph over an Interpenetrated Three‐Dimensional Structure in Mercury Imidazolate (Chem. Eur. J. 8/2020)
复制标题
封面专题：金属有机框架化学中消失的多晶型物：咪唑汞中互穿三维结构上层状多晶型物的意外稳定（Chem. Eur. J. 8/2020）
DOI：
10.1002/chem.201905863
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Friščić, Tomislav
中科院分区：
文献类型：
--
作者：
Speight, Isaiah R.;Huskić, Igor;Arhangelskis, Mihails;Titi, Hatem M.;Stein, Robin S.;Hanusa, Timothy P.;Friščić, Tomislav
献给乔尔·伯恩斯坦（1941-2019），以表彰他对固体多晶型的贡献;献给德拉戈·格德尼奇（1919-2018），以表彰他在汞化合物化学方面的工作。“消失的多晶型物”现象在有机固体中得到了很好的证实，并在药物材料科学中产生了深远的影响。这种效果的第一个例子，在含金属的系统一般，特别是在协调网络固体，在这里报道。具体而言，尝试机械化学合成已知的互穿类金刚石（二）汞（II）咪唑金属有机框架（MOF）产生了一种新的，更稳定的多晶型物的基础上的正方形网格（SQL）层。同时，发现迪亚型是高度难以捉摸的，在监测中仅作为短暂的中间体观察到
Dedicated to Joel Bernstein (1941–2019) for his contributions to polymorphism of solids and Drago Grdenić (1919–2018) for his work in the chemistry of mercury compounds (abstraa. The “disappearing polymorph" phenomenon is well established in organic solids, and has had a profound effect in pharmaceutical materials science. The first example of this effect in metal-containing systems in general, and in coordination-network solids in particular, is here reported. Specifically, attempts to mechanochemically synthesize a known interpenetrated diamondoid (dia) mercury (II) imidazolate metal-organic framework (MOF) yielded a novel, more stable polymorph based on square-grid (sql) layers. Simultaneously, the dia-form was found to be highly elusive, observed only as a short-lived intermediate in monitoring