Coordination polymers based on 3,3′,4,4′-benzophenone-tetracarboxylate and N-containing pillars: syntheses, structure, characterization and properties

(3,4)‐Connected Twofold Interpenetrated Network with Right‐ and Left‐Handed Helical Chains: Synthesis, Crystal Structure, and Luminescence Sensing

“…Obviously, Zn1 has much larger bond lengths than Zn2, which is mainly because they possess different coordination environments and arrangements. Moreover, the bond length data in the present research is consistent with those in previous research about Zn‐based coordination polymers , …”

Impact of N-donor auxiliary ligands on three new Co(ii)-based coordination polymers with symmetrical tetracarboxylate ligands: a magnetism study

“…12,13 Herein, we have chosen 5,5′-(ethene-1,2-diyl)diisophthalic acid (Scheme 1), namely (H 4 L), and explored its potential application in the hydrothermal generation of Co( ii )-based CPs. In order to select H 4 L as a principal block, the below characteristics have been considered: 14–16 (1) this carboxylic acid shows eight possible coordination sites (eight carboxylate oxygen donors), which can generate diverse coordination modes; (2) the H 4 L linker shows two aromatic rings that cannot rotate or twist to inhibit the generation of the interpenetration mode due to a rigid and full framework; and (3) the coordination chemistry of this building block is still unexplored. In addition, N-donor ligands with different conformations, rigidity/flexibility, and spacer lengths have been widely used as ancillary ligands in the assembly of the CPs.…”

Polynuclear Ni(II)/Co(II)/Mn(II) Complexes Based on Terphenyl–Tetracarboxylic Acid Ligand: Crystal Structures and Research of Magnetic Properties

“…Mn1 is five-coordinated with four O atoms (O1A, O2, O5B, O9C) of four tpta 4− anions as well as an oxygen atom (O4) of one aqua ligand; Mn2 lies in an askew octahedral geometry by connecting to four O atoms (O2, O10C, O7D, O8D) of three tpta 4− ligands in the equatorial plane, one O6B of a tpta 4− and one O3 of one coordinated water molecule occupying the axial sites. The Mn−O distances all lie in the normal range 52,53.…”