Citation:
KONG Zhi-Guo, WANG Wei, ZHANG Bing. Synthesis, Crystal Structure and Luminescence of a New Two-dimensional Pb(II) Coordination Polymer[J]. Chinese Journal of Structural Chemistry,
2016, 34(10): 1503-1507.
doi:
10.14102/j.cnki.0254-5861.2011-0715
Synthesis, Crystal Structure and Luminescence of a New Two-dimensional Pb(II) Coordination Polymer
摘要:
A new two-dimensional Pb(II) coordination polymer, [Pb2(L)(tpphz)1.5(NO3)2]·H2O (1), has been obtained by the hydrothermal reaction of tetrapyrido[3,2-a:2',3'-c:3",2"-h:2"',3"'-j]-phenazine (tpphz) and 2,2'-bipyridyl-3,3'-dicarboxylic acid (H2L). It crystallizes in monoclinic, space group P21/c with a=15.344(3), b=14.111(3), c=21.963(4) Å, β=106.89(3)°, V=4550.1(16) Å3, Z=4, C48H26N13O11Pb2, Mr=1375.20, Dc=2.007 g/cm3, F(000)=2628, μ(MoKa)=7.471 mm-1, R=0.0339 and wR=0.0808. In 1, the two crystallographically independent tpphz ligands adopt the same bis-chelating coordination mode, but they play different roles in the structure of 1. One type of tpphz ligands bridge the Pb(II) cations to generate a zigzig chain, where the L anions are located on one side of the chain. Further, adjacent chains are linked by the other type of tpphz ligands into a two-dimensional layer structure. Additionally, the solid state luminescent property of 1 was also studied at room temperature.
English
Synthesis, Crystal Structure and Luminescence of a New Two-dimensional Pb(II) Coordination Polymer
Abstract:
A new two-dimensional Pb(II) coordination polymer, [Pb2(L)(tpphz)1.5(NO3)2]·H2O (1), has been obtained by the hydrothermal reaction of tetrapyrido[3,2-a:2',3'-c:3",2"-h:2"',3"'-j]-phenazine (tpphz) and 2,2'-bipyridyl-3,3'-dicarboxylic acid (H2L). It crystallizes in monoclinic, space group P21/c with a=15.344(3), b=14.111(3), c=21.963(4) Å, β=106.89(3)°, V=4550.1(16) Å3, Z=4, C48H26N13O11Pb2, Mr=1375.20, Dc=2.007 g/cm3, F(000)=2628, μ(MoKa)=7.471 mm-1, R=0.0339 and wR=0.0808. In 1, the two crystallographically independent tpphz ligands adopt the same bis-chelating coordination mode, but they play different roles in the structure of 1. One type of tpphz ligands bridge the Pb(II) cations to generate a zigzig chain, where the L anions are located on one side of the chain. Further, adjacent chains are linked by the other type of tpphz ligands into a two-dimensional layer structure. Additionally, the solid state luminescent property of 1 was also studied at room temperature.
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