catena-Poly[[di-aqua-bis-(1,3-di-hydro-3-oxo-isobenzo-furan-1-acetato)-copper(II)]-μ- N, N'-(ethane-1,2-di-yl)dinicotinamide]

Sean R Pumford; Robert L LaDuca

doi:10.1107/S2414314623007642

catena-Poly[[di-aqua-bis-(1,3-di-hydro-3-oxo-isobenzo-furan-1-acetato)-copper(II)]-μ- N, N'-(ethane-1,2-di-yl)dinicotinamide]

IUCrdata. 2023 Sep 8;8(Pt 9):x230764. doi: 10.1107/S2414314623007642. eCollection 2023 Sep.

Authors

Sean R Pumford¹, Robert L LaDuca²

Affiliations

¹ H. H. Dow High School, Midland, MI 48640, USA.
² E-35 Holmes Hall, Michigan State University, Lyman Briggs College, 919 E. Shaw Lane, East Lansing, MI 48825, USA.

Abstract

The title compound, {[Cu(C₁₀H₇O₄)₂(C₁₄H₁₄N₄O₂)(H₂O)₂]_n, contains octa-hed-rally coordinated Cu^II ions ligated by two bis-(1,3-di-hydro-3-oxo-1-isobenzo-furan-acetate (dibf) ligands and two trans water mol-ecules, linked by N,N'-(ethane-1,2-di-yl)dinicotinamide (edn) ligands into mono-periodic coordination polymer chains. The dibf ligands exhibit a pseudo-mirror positional disorder over two positions in a 89.2 (3)/10.8 (3) ratio; the central amide groups of the edn ligands are disordered pseudo-rotationally in the same ratio. These mono-periodic chain motifs are held into supra-molecular di-periodic supra-molecular layers by means of N-H⋯O hydrogen bonding between edn amide groups and unligated dibf carboxyl-ate O atoms. In turn, the supra-molecular layers are held by crystal packing forces into the full crystal structure of the title compound.

Keywords: coordination polymer; crystal structure; dibf; edn; in situ lactonization.

Grants and funding

Funding for this work was provided by the Lyman Briggs College of Science at Michigan State University.