Jump to main content
Jump to site search

Issue 17, 2015
Previous Article Next Article

A Zr metal–organic framework based on tetrakis(4-carboxyphenyl) silane and factors affecting the hydrothermal stability of Zr-MOFs

Author affiliations

Abstract

A new (4,8)-connected Zr-MOF porous zirconium metal–organic framework (Zr-MOF) with flu topology, Zr63-O)43-OH)4(TCPS)2(H2O)4(OH)4 (1, TCPS = tetrakis(4-carboxyphenyl) silane) with a BET specific area of 1402 m2 g−1 has been constructed and fully characterized. 1 is stable in air and acid media but unstable in water and basic media, and thermally stable up to 200 °C. The new MOF is a wide band gap semiconductor with Eg = 3.95 eV. The excitation of 1 at 260 nm gives a ligand-based emission peak at 435 nm. After solvent exchange processes and activation at 200 °C, this MOF exhibits high storage capacities for H2, CH4 and CO2. We summarized the hydrothermal stability data of Zr-MOFs, calculated the NBO (natural bond orbital) charges of the coordinating oxygen atoms of the corresponding carboxylate ligands and analyzed the influencing factors. Besides the known reasons of hydrothermal stabilities of Zr-MOFs, we demonstrated that NBO charges of coordinating atoms of the ligands can be used to explain the hydrothermal stabilities of Zr-MOFs.

Graphical abstract: A Zr metal–organic framework based on tetrakis(4-carboxyphenyl) silane and factors affecting the hydrothermal stability of Zr-MOFs

Back to tab navigation

Supplementary files

Article information


Submitted
29 Jan 2015
Accepted
25 Mar 2015
First published
02 Apr 2015

Dalton Trans., 2015,44, 8049-8061
Article type
Paper
Author version available

A Zr metal–organic framework based on tetrakis(4-carboxyphenyl) silane and factors affecting the hydrothermal stability of Zr-MOFs

S. Wang, J. Wang, W. Cheng, X. Yang, Z. Zhang, Y. Xu, H. Liu, Y. Wu and M. Fang, Dalton Trans., 2015, 44, 8049 DOI: 10.1039/C5DT00421G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements