Assembly, structure and properties of three new multifunctional complexes derived from the naphthalene-based bis(pyridyl)-bis(amide) and benzenetricarboxylic acid
Three new metal(II)–organic coordination complexes, formula as [Cd3(btc)2(3-dpna)2(H2O)2]·8H2O (1), [Zn3(btc)2(3-dpna)2(H2O)2]·4H2O (2) and [Co3(btc)2(3-dpna)2(H2O)2]·2H2O (3) [3-dpna = N1,N4-di(pyridin-3-yl)naphthalene-1,4-dicarboxamide, H3btc = 1,2,4-benzenetricarboxylic acid], have been successfully synthesized by the hydrothermal methods. Complexes 1–3 exhibit similar 3D coordination networks based on the [M3(btc)2(H2O)2]n [M = Cd(II) for 1, Zn(II) for 2, Co(II) for 3] layers and the μ2-bridging 3-dpna ligand containing the naphthalene-bridging group, representing a 4,4,4-connected {42.64}4{64.82} topology. The photocatalyitc properties of complexes 1–3 toward degrading organic dyes, the fluorescent of complexes 1–3 and the fluorescent sensing activities of complexes 1–2 toward detecting metal ions have been studied. Additionally, the electrochemical and electrocatalytic properties of complex 3 have been investigated.
