| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1301378 | Inorganic Chemistry Communications | 2015 | 5 Pages |
•Two coordination polymers based on hexanuclear Co6 and dinuclear Mn2 clusters•Conformation selectivity was occurred in two complexes.•Antiferromagnetic interactions were observed in two complexes.
Two new coordination polymers, [Co3(μ7-CTA)(bipy)(μ3-OH)2(μ2-H2O)]·3H2O (1) and [Mn2(μ6-CTA)(bipy)(H2O)2]·H2O (2), have been prepared by a flexible cyclohexane-1,2,4,5-tetracarboxylic acid (H4CTA) with a chelating co-ligand, 2,2’-bipyridine (bipy). Complex 1 is a two-dimensional (2D) structure based on unusual hexanuclear cluster (Co6) nodes and CTA linkers, while 2 exhibits a 1D chain based on dinuclear cluster (Mn2) units and CTA linkers. Structural analysis revealed that the conformation of H4CTA in 1 exhibits a (a,e,e,a) fashion and transforms to a thermodynamically more stable conformation (e,a,e,e) type in 2. 1 and 2 showed antiferromagnetic interactions.
Graphic AbstractTwo cluster-based low dimensional coordination polymers constructed from conformation-flexible cyclohexanetetracarboxylate and chelating bipyridyl ligand, displaying various conformations and antiferromagnetic properties.Figure optionsDownload full-size imageDownload as PowerPoint slide
