Crystal structure and characterization of a new one-dimensional copper(II) coordination polymer containing a 4-amino-benzoic acid ligand.

ABSTRACT: A Cu^II coordination polymer, catena-poly[[[aqua-copper(II)]-bis-(μ-4-amino-benz-o-ato)-κ² N:O;κ² O:N] monohydrate], {[Cu(pABA)₂(H₂O)]·H₂O}_n (pABA = p-amino-benzoate, C₇H₄NO₂ ^-), was synthesized and characterized. It exhibits a one-dimensional chain structure extended into a three-dimensional supra-molecular assembly through hydrogen bonds and π-π inter-actions. While the twinned crystal shows a metrically ortho-rhom-bic lattice and an apparent space group Pbcm, the true symmetry is monoclinic (space group P2/c), with disordered Cu atoms and mixed roles of water mol-ecules (aqua ligand/crystallization water). The luminescence spectrum of the complex shows an emission at 345 nm, cf. 349 nm for pABAH.

SUBMITTER: Gogia A 

PROVIDER: S-EPMC10915671 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature