From Frustrated Packing to Tecton-Driven Porous Molecular Solids

被引：8

作者：

Gunawardana, Chamara A. ^{[1
]}

Sinha, Abhijeet S. ^{[1
]}

Reinheimer, Eric W. ^{[2
]}

Aakeroy, Christer B. ^{[1
]}

机构：

[1] Kansas State Univ, Dept Chem, Manhattan, KS 66506 USA

[2] Americas Corp, 9009 New Trails Dr, The Woodlands, TX 77381 USA

来源：

CHEMISTRY-SWITZERLAND | 2020年 / 2卷 / 01期

关键词：

crystal engineering; porous material; molecular recognition; halogen bond; co-crystal; molecular tecton; binary solid; network structure; sigma-hole; molecular electrostatic potential; CRYSTAL-STRUCTURES; ORGANIC-MOLECULES; DIAMONDOID NETS; C-H; HALOGEN; ETHYNYLBENZENE; FRAMEWORKS; STORAGE;

D O I：

10.3390/chemistry2010011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Structurally divergent molecules containing bulky substituents tend to produce porous materials via frustrated packing. Two rigid tetrahedral cores, tetraphenylmethane and 1,3,5,7-tetraphenyladamantane, grafted peripherally with four (trimethylsilyl)ethynyl moieties, were found to have only isolated voids in their crystal structures. Hence, they were modified into tecton-like entities, tetrakis(4-(iodoethynyl)phenyl)methane [I4TEPM] and 1,3,5,7-tetrakis(4-(iodoethynyl)phenyl)adamantane [I(4)TEPA], in order to deliberately use the motif-forming characteristics of iodoethynyl units to enhance crystal porosity. I4TEPM not only holds increased free volume compared to its precursor, but also forms one-dimensional channels. Furthermore, it readily co-crystallizes with Lewis basic solvents to afford two-component porous crystals.

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收藏

页码：179 / 192

页数：14

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