Design of a humidity-stable metal-organic framework using a phosphonate monoester ligand

Benjamin S Gelfand; Jian-Bin Lin; George K H Shimizu

doi:10.1021/ic502478u

Design of a humidity-stable metal-organic framework using a phosphonate monoester ligand

Inorg Chem. 2015 Feb 16;54(4):1185-7. doi: 10.1021/ic502478u. Epub 2015 Feb 3.

Authors

Benjamin S Gelfand¹, Jian-Bin Lin, George K H Shimizu

Affiliation

¹ Department of Chemistry, University of Calgary , Calgary, Alberta T2N 1N4, Canada.

PMID: 25646642
DOI: 10.1021/ic502478u

Abstract

Phosphonate monoesters are atypical linkers for metal-organic frameworks, but they offer potentially added versatility. In this work, a bulky isopropyl ester is used to direct the topology of a copper(II) network from a dense to an open framework, CALF-30. CALF-30 shows no adsorption of N2 or CH4 however, using CO2 sorption, CALF-30 was found to have a Langmuir surface area of over 300 m(2)/g and to be stable to conditions of 90% relative humidity at 353 K owing to kinetic shielding of the framework by the phosphonate ester.