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新化合物PbCuP2O7的单晶通过高温固相反应制备得到,使用X一射线四园衍射仪测定了它的单晶结构.PbCuP2O7属单斜晶系,空间群为P21/n,晶胞参数:α=5.381(1),b=8.2O5(2),C=12.57O(3)A,β=90.49(3)°,Z=4.使用1311个I>2σ(I)反射修正101个变量参数,最终收敛到R=0.O54.其晶体结构是由共顶点的CuO5四方锥和P2O7集团沿α轴形成较大的孔道所组成,Pb原子位于由两个四方锥和三个PO4四面体的棱所夹的五角形孔道中.
The single crystal of the new compound PbCuP2O7 was prepared by solid-state reaction at high temperature. The single crystal structure of PbCuP2O7 was determined by X-ray diffraction analysis. PbCuP2O7 belongs to the monoclinic system with space group P21 / n. The unit cell parameters are α = 5.381 (1), b = 8.2O5 (2), C = 12.57O (3) A, β = 90.49 (3) °, Z = 4. Using 1311 I> 2σ (I) reflections, 101 variable parameters were corrected, eventually converging to R = 0. O54. The crystal structure is composed of a total of vertex CuO5 tetragonal pyramids and P2O7 groups along the α axis to form larger channels, Pb atoms located in the two square pyramids and three PO4 tetrahedral edges of the pentagonal confined edges of the channel.