Mg(II) Coordination Polymers Based on Flexible Isomeric Tetracarboxylate Ligands: Syntheses, Structures, Structural Transformation and Luminescent Properties.

ABSTRACT: By using a new flexible tetracarboxylic acid, bis(3,5-dicarboxyphenyl) adipoamide, H₄L¹, and its isomer, bis(2,5-dicarboxyphenyl)adipoamide, H₄L², three Mg(II) coordination polymers, {[Mg₂(L¹)(H₂O)₂]·2EtOH·3H₂O}_n, 1, [Mg₂(L¹)(H₂O)₈]_n, 2, and {[Mg₂(L²)(H₂O)₆]·H₂O}_n, 3, have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Complexes 1 and 2 are the solvent ratio-dependent hydrothermally stable products. The tetracarboxylate ligand of complex 1 connects eight Mg(II) ions through nine oxygen atoms, resulting in a three-dimensional (3D) 5-connected uninodal net with a rare non-interpenetrating (4⁴.6⁶)-pcu-5-Pmna topology, whereas those

SUBMITTER: Thapa KB 

PROVIDER: S-EPMC6415218 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature