Gas Sorption Studies on a Microporous Coordination Polymer Assembled from 2D Grid Layers by Strong π–π Interactions. Issue 3 (21st January 2014)

• Record Type: Journal Article
• Authors: Lv, Xiaoxia; Li, Liangjun; Sun, Xiaoming; Zhang, Hongyu; Cai, Jinjun; Wang, Chao; Tang, Sifu; Zhao, Xuebo
• Is Part Of: Chemistry, an Asian journal. Volume 9:Issue 3(2014:Mar.)
• Page Start: 901
• Page End: 907
• Publication Date: 2014-01-21
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201301327
• Languages: English
• ISSNs: 1861-4728

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The microporous coordination polymer [Co(H₂L)(bipy)_0.5]<bold>⋅</bold>2 H₂O (<bold>1</bold>, bipy=4, 4′‐bipyridine) was synthesized on the basis of the V‐shaped flexible diphosphonate ligand (2, 4, 6‐trimethyl‐1, 3‐phenylene)bis(methylene)diphosphonic acid (H₄L) and the auxiliary bipy ligand under hydrothermal conditions. The structure of this compound was characterized by single‐crystal X‐ray diffraction. By joining the diphosphonate ligands and bipy through tetrahedral [CoO₃N] clusters, a 2D square grid layered network was formed. Further stacking of these layers on the basis of π–π interactions resulted in a pseudo‐3D microporous network with 1D channels running through the <italic>a</italic> axis. Gas sorption studies for CO₂, H₂, CH₄, N₂, and O₂ on this coordination polymer were performed, and the results revealed interesting dynamic and hysteresis sorption behavior toward H₂ at low temperature.</p> </abstract>