Influence of Anions in Silver Supramolecular Frameworks: Structural Characteristics and Sorption Properties.

被引：48

作者：

Bassanetti, Irene ^{[1
]}

Mezzadri, Francesco ^{[1
]}

Comotti, Angiolina ^{[2
]}

Sozzani, Piero ^{[2
]}

Gennari, Marcello ^{[1
]}

Calestani, Gianluca ^{[1
]}

Marchio, Luciano ^{[1
]}

机构：

[1] Univ Parma, Dipartimento Chim Gen & Inorgan, I-43100 Parma, Italy

[2] Univ Milano Bicocca, Dept Mat Sci, I-20125 Milan, Italy

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 22期

关键词：

COORDINATION POLYMERS; ADSORPTION; COMPLEXES; SEPARATION; ISOMERISM; NETWORK; STORAGE; LIGAND;

D O I：

10.1021/ja303940d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The complexation of a preorganized thioether-functionalized bis(pyrazoly)methane ligand (L) with silver precursors produces supramolecular structures organized at two hierarchical levels: [AgL](6)(X)(6) metal-organic cyclic hexamers and their organization in 3D architectures. The cyclic toroidal hexamers of 22-26 angstrom external diameter are found to be stable already in solution before self-assembly into the crystalline state. In the 3D lattice, the hexameric building block are arranged in different highly symmetric space groups as a function of a variety of anions (cubic Fd $(3) over bar $ with PF6- or BF4- and rhombohedral R $(3) over bar $ with CF3SO3- or NO3-) and form cavities with the geometrical shapes of Platonic solids (tetrahedron and octahedron) that can be occupied by a variety of solvent molecules. Upon evacuation, cubic crystals can produce stable frameworks with permanent porosity, which can absorb reversibly several vapors, CO2 and CH4.

引用

页码：9142 / 9145

页数：4

共 35 条

[31] Methane and carbon dioxide storage in a porous van der Waals crystal [J].