Metal-Organic Frameworks Based on Previously Unknown Zr8/Hf8 Cubic Clusters

被引：200

作者：

Feng, Dawei ^{[1
]}

Jiang, Hai-Long ^{[1
,2
]}

Chen, Ying-Pin ^{[1
]}

Gu, Zhi-Yuan ^{[1
]}

Wei, Zhangwen ^{[1
]}

Zhout, Hong-Cai ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

[2] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

来源：

INORGANIC CHEMISTRY | 2013年 / 52卷 / 21期

关键词：

BOND-VALENCE PARAMETERS; ZIRCONIUM; OXIDATION; CYCLOHEXANE; EFFICIENT; HAFNIUM(IV); CHEMISTRY; ZEOLITE; FAMILY; SERIES;

D O I：

10.1021/ic4018536

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The ongoing study of zirconium- and hafnium-porphyrinic metal-organic frameworks (MOFs) led to the discovery of isostructural MOFs based on Zr-8 and Hf-8 clusters, which are unknown in both cluster and MOF chemistry. The Zr8O6 cluster features an idealized Zr-8 cube, in which each Zr atom resides on one vertex and each face of the cube is capped by one mu(4)-oxygen atom. On each edge of the cube, a carboxylate from a porphyrinic ligand bridges two Zr atoms to afford a 3D MOF with a very rare (4,12)-connected ftw topology, in which two types of polyhedral cages with diameters of similar to 1.1 and similar to 2.0 nm and a cage opening of similar to 0.8 nm are found. The isostructural Zr- and Hf-MOFs exhibit high surface areas, gas uptakes, and catalytic selectivity for cyclohexane oxidation.

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页码：12661 / 12667

页数：7

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