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A New Cobalt(II)‐Layered Network Based on Phenyl(carboxymethyl) Phosphinate
Author(s) -
Costantino Ferdinando,
Ienco Andrea,
Midollini Stefano,
Orlandini Annabella,
Rossin Andrea,
Sorace Lorenzo
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000276
Subject(s) - phosphinate , chemistry , cobalt , carboxylate , bifunctional , crystallography , molecule , ligand (biochemistry) , metal organic framework , metal , metal ions in aqueous solution , solvent , inorganic chemistry , polymer chemistry , stereochemistry , adsorption , organic chemistry , catalysis , biochemistry , receptor , fire retardant
In the presence of 4,4′‐bipyridine (4,4′‐bipy) and Co II metal ions, a bifunctional phosphinate‐carboxylate ligand, phenyl(carboxymethyl) phosphinate (pcc), forms a new polymeric metal‐organic framework (MOF), [[Co(pcc)(4,4′‐bipy)(H 2 O)](H 2 O) 1.5 ] n ( 1 ). The structure consists of 2D slabs connected by solvent water molecules with cobalt metal atoms in two different coordination environments. The temperature‐dependent X‐ray powder diffraction analysis of 1 shows the formation of dehydrated phases in the range 120–180 °C. The dehydration–rehydration process is reversible. The overall magnetic behaviour of complex 1 is dominated by single ion effects with only weak exchange coupling interactions, due to the syn / anti conformation of the Co–O–C–O–Co path.