Neutral and Cationic Chelidonate Coordination Polymers with N,N'-Bridging Ligands by unknow

Author:unknow
Format: pdf
Tags: The biomolecule chelidonic acid (H2chel, 4-oxo-4H-pyran-2,6-dicarboxylic acid) has been used to build new coordination polymers with the bridging N,N'-ligands 4,4'-bipyridine (4,4-bipy) and 1,2-bis(4-pyridyl)ethane (bpe). Four compounds have been obtained as single crystals: 1D cationic coordination polymers [M(4,4-bipy)(OH2)4]2+ with chelidonate anions and water molecules in the second coordination sphere in 1[Zn(4,4-bipy)(H2O)4]chel3H2O (2) and in the two pseudopolymorphic 1[Cu(4,4-bipy)(H2O)4]chelnH2O (n = 3, 4a; n = 6, 4b), and the 2D neutral coordination polymers 2[Zn(chel)(4,4-bipy)(H2O)]2H2O (1) and 2[Zn(chel)(bpe)(H2O)]H2O (3) where the chelidonate anion acts as a bridging ligand. The effects of the hydrogen bonds on the crystal packing were analyzed. The role of the water molecules hosted within the crystals lattices was also studied., zinc complexes; copper(II) complexes; coordination polymers; chelidonic acid; metallosupramolecular compounds; H-bonding pattern; X-ray diffraction


Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.