Topological difference in 2D layers steers the formation of rigid and flexible 3D supramolecular isomers: impact on the adsorption properties

Prakash Kanoo; Ryotaro Matsuda; Ryo Kitaura; Susumu Kitagawa; Tapas Kumar Maji

doi:10.1021/ic300695v

Topological difference in 2D layers steers the formation of rigid and flexible 3D supramolecular isomers: impact on the adsorption properties

Inorg Chem. 2012 Sep 3;51(17):9141-3. doi: 10.1021/ic300695v. Epub 2012 Aug 17.

Authors

Prakash Kanoo¹, Ryotaro Matsuda, Ryo Kitaura, Susumu Kitagawa, Tapas Kumar Maji

Affiliation

¹ Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560 064, India.

PMID: 22900642
DOI: 10.1021/ic300695v

Abstract

Starting with the same precursors, pyridine-2,3-dicarboxylate (pyrdc) and 4,4'-bipyridyl (bipy), two 3D porous coordination polymers, {[Cu(bipy)(0.5)(pyrdc)]·3H(2)O} (1) and {[Cu(bipy)(0.5)(pyrdc)]·0.5bipy·3H(2)O} (2), have been synthesized by changing the solvent system from MeOH/H(2)O to EtOH/H(2)O. Single-crystal structure analysis revealed that 1 and 2 are supramolecular isomers with 3D pillared-layer structures having 1D channel systems. Isomer 1 has a flexible structure and shows gated adsorption behavior, while framework 2 has a rigid backbone and exhibits the adsorption properties of typical microporous materials.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adsorption
Isomerism
Methanol / chemistry
Models, Molecular
Molecular Conformation*
Polymers / chemical synthesis
Polymers / chemistry*
Pyridines / chemistry

Substances

Polymers
Pyridines
pyridine
Methanol