Highly Stable Five-Coordinated Mn(II) Polymer [Mn(Hbidc)]_n (Hbidc=1<i>H</i>-Benzimidazole-5,6-dicarboxylate): Crystal Structure, Antiferromegnetic Property, and Strong Long-Lived Luminescence

Abstract

A novel five-coordinated Mn(II) polymer 1 H -benzimidazole-5,6-dicarboxylato manganese (II) ([Mn(Hbidc)] n, 1 ) possessing abundant hydrogen bonds and π−π stacking interactions, synthesized by the hydrothermal reaction between MnSO 4 and a multifunctional organic aromatic ligand H 3 bidc, displays antiferromagnetic character, strong long-lived red luminescence (λ max = 726 nm and τ = 0.3 ms) as well as high thermal stability (up to ca. 500 °C).