Abstract
Two fluorescent Zn(II) polymers (1 and 2) with different dicarboxylic acid co-ligands have been obtained under hydrothermal reaction conditions. In 1 and 2, the flexible bmb adopts two trans-conformations with different Ndonor···N–Csp3···Csp3 torsion angles, generating 3-D interspersed (412·63)-pcu grids. The dicarboxylic acid co-ligands influence the conformation of bmb, which lead to diverse spatial structures from a single helix to a 2-D lattice network. Photoluminescence investigations reveal that 1 has a redshift compared with o-H2oba (4,4'-oxydibenzoic acid) and 2 has a blueshift of 20 nm compared with H2bpdc ([1,1'-biphenyl]-4,4'-dicarboxylic acid), which can be attributed to a ligand-centered charge transfer.
Published Version
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