In this work, we report a new two-dimensional Sr(II) coordination polymer, namely, [Sr(L)(phen)(H20)] (1), based on 3,5-dinitro-salicylic acid (H2L) and 1,10-phenanthroline (phen). It crystallizes in mon...In this work, we report a new two-dimensional Sr(II) coordination polymer, namely, [Sr(L)(phen)(H20)] (1), based on 3,5-dinitro-salicylic acid (H2L) and 1,10-phenanthroline (phen). It crystallizes in monoclinic, space group P2/1 with a = 15.479(3), b = 9.4020(19), c = 13.884(3)/k, β= 103.76(3)°, V= 1962.5(7) A3, Z = 4, C19H12SrN4O8, Mr = 511.95, Dc = 1.733 g/cm^3, F(000) = 1024,μ(MoKa) = 2.805 mm^-1, R = 0.0411 and wR = 0.1069. In 1, each L anion bridges three Sr(II) atoms by using carboxylate and hydroxyl groups, yielding a two-dimensional layer structure. The phen ligands are alternately attached to both sides of the layer. The π-π stacking between L and phen in the same layer and hydrogen-bonding interactions between water molecule and carboxylate oxygen atom play an important role in stabilizing the layer structure of 1. The solid state luminescent property of 1 was also studied at room temperature.展开更多
基金Supported by the Institute Foundation of Siping City(No.2013036)
文摘In this work, we report a new two-dimensional Sr(II) coordination polymer, namely, [Sr(L)(phen)(H20)] (1), based on 3,5-dinitro-salicylic acid (H2L) and 1,10-phenanthroline (phen). It crystallizes in monoclinic, space group P2/1 with a = 15.479(3), b = 9.4020(19), c = 13.884(3)/k, β= 103.76(3)°, V= 1962.5(7) A3, Z = 4, C19H12SrN4O8, Mr = 511.95, Dc = 1.733 g/cm^3, F(000) = 1024,μ(MoKa) = 2.805 mm^-1, R = 0.0411 and wR = 0.1069. In 1, each L anion bridges three Sr(II) atoms by using carboxylate and hydroxyl groups, yielding a two-dimensional layer structure. The phen ligands are alternately attached to both sides of the layer. The π-π stacking between L and phen in the same layer and hydrogen-bonding interactions between water molecule and carboxylate oxygen atom play an important role in stabilizing the layer structure of 1. The solid state luminescent property of 1 was also studied at room temperature.