Tetrakis[μ-2-(3,4-dimethoxyphenyl)acetato]-κ3O1,O1′:O1;κ3O1:O1,O1′;κ4O1:O1′-bis{[2-(3,4-dimethoxyphenyl)acetato-κ2O1,O1′](1,10-phenanthroline-κ2N,N′)erbium(III)}

Abstract

In the dimeric centrosymmetric title complex, [Er2(C10H11O4)6(C12H8N2)2], the ErIII ion is nine-coordinated by five 2-(3,4-dimethoxylphenyl)acetic acid (DMPA) ligands via seven O atoms and two N atoms from a bis-chelating 1,10-phenanthroline (phen) ligand in a distorted tricapped trigonal-prismatic geometry. The DMPA ligands are coordinated to the ErIII ion in bis-chelate, bridging and bridging tridentate modes. Relatively weak intramolecular C—H...O interactions reinforce the stability of the molecular structure. Intermolecular C—H...O interactions are also observed.