Abstract
The syntheses and structures of the coordination polymers [Cd(ppeb)2(H2O)2]n·(NO3)2n (1), [Cd(ppeb)2(ClO4)2]n (2), [Cd(opeb)2(NO3)2]n (3) and [Cd(opeb)2(H2O)2]n·(ClO4)2n (4), where ppeb and opeb represent the 1,4- and 1,2-isomers of bis[2-(3-pyridyl)ethyl]-benzene, C20H20N2, respectively, are described. Each structure contains trans-CdO2N4 octahedra. In 1 and 2, they are bridged by pairs of ligands to generate looped chains, whereas in 3 and 4 the ligands link the metal nodes into squashed 44 polymeric sheets. In 1 and 4, O–H…O hydrogen bonds from the coordinated water molecules to the uncoordinated anions help to consolidate the structures.
Original language | English |
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Pages (from-to) | 1719-1732 |
Number of pages | 14 |
Journal | Journal of Coordination Chemistry |
Volume | 68 |
Issue number | 10 |
Early online date | 17 Mar 2015 |
DOIs | |
Publication status | Published - 2015 |
Bibliographical note
AcknowledgementsWe thank the EPSRC National Crystallography Service (University of Southampton) for the X-ray data collections and the EPSRC National Mass Spectrometry Service (University of Swansea) for the high-resolution mass spectra data.
Keywords
- cadmium
- coordination polymer
- flexible ligand