【摘 要】
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A new iodoplumbate polymer incorporating copper iodide complex cation{[Cu(Ⅱ)(bipy)2I][PbI3](H2O)2}n 1(bipy = 2,2'-bipyridine)has been synthesized and structura
【机 构】
：
College of Chemistry and Chemical Engineering
论文部分内容阅读
A new iodoplumbate polymer incorporating copper iodide complex cation{[Cu(Ⅱ)(bipy)2I][PbI3](H2O)2}n 1(bipy = 2,2'-bipyridine)has been synthesized and structurally determined.It crystallizes in the triclinic system,space group P(1)with a = 7.979(4),b = 14.538(11),c = 15.853(8)(A),α = 110.77(2),β = 97.955(18),γ = 104.88(2)°,V = 1607.3(17)A3,Z = 2,C20H16CuI4N4O2Pb,Mr= 1122.72,Dc = 2.320 g/cm3,F(000)= 1006,μ(MoKa)= 9.753,the final R= 0.0627 and wR = 0.1741 for 4846 observed reflections with I> 2σ(I).Structural analysis indicates that 1 consists of 2-D {[Cu(Ⅱ)(bipy)2I}nn+cation layers(based on π-π interaction and hydrogen bonds)and[PbI3]nn-polyanions.The C-H…I hydrogen bonds between {[Cu(Ⅱ)(bipy)2I]}nn+cation layers and[PbI3]nn-polyanious lead to the formation of an interesting 3-D network.Optical absorption spectrum indicates that 1 is a semiconductor,which is further validated by DFT calculation.Its electronic structure is also discussed.
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