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氰尿酸钡的晶体结构
Crystal Structure of Cyanuric Barium
【摘要】 报道了氰尿酸钡[Ba(C3H2N3O3)2·(H2O)2]的晶体结构。晶体属三斜晶系,空间群为P1,晶胞参数为:a=8.884(3).b=9.422(4),c=7.201(4)A,α=97.75(4),β=101.76(4),γ=85.05(3)°;Mr=429.49,Z=2,Dc=2.44g/cm3。V=583.6(4)A3,μ=34.56cm-1,λ(MoKα)=0.71069A,F(000)=412,I>3σ(I)的衍射点2091个。结构用TEXSAN程序包以直接法解出,经全距阵最小二乘法修正,最后R因子为0.029,Rω=0.037.中心离子Ba2+的配位数为10,Ba2+离子处于6个配位原子形成的平面的中心位置上,另外4个配位原子则处于平面外,分布在Ba2+离子的周围。
【Abstract】 The crystal of tittle compound belongs to triclinic, space group P1 with α= 8. 884 (3),b=9. 422(4) , c=7. 201 (4) A ,α=97. 75(4) ,β= 101. 76(4) ,γ=85. 05(3)°: V= 583.6(4) A3,D_c=2. 44 g/cm ̄(-3), Z=2, M_r=429. 49, μ= 34. 56 cm ̄(-1), (MoKα) =0. 71069 A , F(000)=412. The final R=0. 029, R_ω=0. 037. The coordination number of barium ion is 10, and the barium ion locate in the center of the plane made by four O atoms and two N atoms from four cyanuric ions, the four O atoms from four water molecules locate outside the plane.
- 【文献出处】 结构化学 ,CHINESE JOURNAL OF STRUCTUNAL CHEMISTRY , 编辑部邮箱 ,1994年06期
- 【分类号】O627.22
- 【被引频次】2
- 【下载频次】76