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二苯并18-冠-6铵与硫氰酸银配合物的晶体结构
Crystal and Molecular Structure of DB18-Crown-6 Ammonium with Silver(I) Thiocyanate Complex
【摘要】 标题化合物[(NH4)(DB18C6)]2[Ag(SCN)2]2其晶体属三斜晶系,空间群为P1。晶胞参数:a=14.003(2),b=14.461(3),c=14.887(2),a=66.51(2),β=66.70(1),γ=76.09(2)°,V=2527.13 3,Mr=1205.0,Z=2,Dx=1.58g/cm3,μ=9.88cm-1。偏差因子Rw=0.081,独立可观测点数[I>3σ(I)]为3351个,在配合物分子中,二苯并18-冠-6与NH4+形成配阳离子,Ag+与硫氰酸根形成配阴离子,二者以静电力形成配合物。银原子被两个SCN-的S原子桥联和硫氰酸根上的硫,氮杂配,使整个分子形成一条高分子长链。
【Abstract】 The crystal structure of the title complex belongs to the triclinic space group P1 with cell parameters:a= 14. 003(2),b=14. 461(3),c=35.092(6)A,a=66. 51(2),β=66. 70(1),γ=76. 09(2)°,Z=2,Dx= 1. 58 g/cm ̄3,V=2527. 1 A ̄3. R=0. 077 and Rw=0.081.The chemical formula of the crystal is [(NH4 ) (DB18C6]2[Ag (SCN )2]2.Its composition was determined by elemental analyses and X-ray structure analyses.The result of crystal structure analyses shows that in the crystal complex DB18C6 ccordinates with ammonium and silver(I) with thiocyanates.The [(NH4) (DB18C6)] ion and [Ag2(SCN)4]  ̄(2-)ion are combined with by electronic force.
- 【文献出处】 结构化学 ,CHINESE JOURNAL OF STRUCTUNAL CHEMISTRY , 编辑部邮箱 ,1995年03期
- 【分类号】O614.122
- 【被引频次】1
- 【下载频次】57