Issue 45, 2013

Relating pore hydrophilicity with vapour adsorption capacity in a series of amino acid based metal organic frameworks

Abstract

A new Zn based porous homochiral metal–organic framework, ThrZnOAc, belonging to unh topology, has been synthesized using pyridyl functionalized threonine and Zn(OAc)2 as the metal precursor. Stepwise substitution of the homochiral MOF backbone by simply changing the sidearm of the amino acids (isopropyl in the case of valine, methyl in alanine and hydroxyethyl in threonine) resulted in increased water adsorption in ThrZnOAc compared to the previously reported ValZnOAc/AlaZnOAc. Extensive solvent sorption isotherms (water, methanol, isopropanol and toluene) have been carried out, which revealed high solvophilic interaction with polar solvents in ThrZnOAc due to the polar pore [2-hydroxyethyl {–CH(OH)CH3} sidearm of the amino acid], which is not prominent in the corresponding valine/alanine counterparts. The aforementioned functionalization in a series of isostructural amino acid based MOFs with the only difference being in the sidearm and their emergence as enhanced solvophilic materials is unprecedented in the MOF literature.

Graphical abstract: Relating pore hydrophilicity with vapour adsorption capacity in a series of amino acid based metal organic frameworks

Supplementary files

Article information

Article type
Paper
Submitted
10 jun 2013
Accepted
13 avg 2013
First published
14 avg 2013

CrystEngComm, 2013,15, 9634-9640

Relating pore hydrophilicity with vapour adsorption capacity in a series of amino acid based metal organic frameworks

T. Kundu, S. C. Sahoo and R. Banerjee, CrystEngComm, 2013, 15, 9634 DOI: 10.1039/C3CE41083H

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

Spotlight

Advertisements