摘要
在乙腈介质中培养出由水合硝酸钪与15-冠-5(15C5)组成的配合物(Sc(NO_3)_3(H_2O)_2]·(15C5)单晶。对配合物进行了元素分析、红外光谱、溶解性及摩尔电导测定和X射线结构分析。
The single crystal of the complex [Sc(NO_3)_3(H_2O)_2]·(15C5) has been prepared and characterized by elemental analyses, IR spectra, solubility and molar conductance measurements. The structure of the complex is determined by X-ray Single crystal diffraction analysis. The crystal of the compiex is monoclinic, space group P2_1/n with cell parameters: a=8.485(2), b=15.863(3), c=16.149(2), β=102.49(2)°, Z=4, Dc=1.52g/cm^3, Do=1.51g/cm^3. The structure has been refined to R=0.046 and Rw=0.052 using 2744≥3σ(I) observed data. Here the crown is not coordinated to the metal ion but is linked to the [Sc(NO_3)_3(H_2O)_2] unit by O_(……) H-O bonds. The Sc-O bond lengths are 2.195～2.245 for nitrato-and 2.120～2.143 for water oxygens respectively.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1989年第2期13-16,共4页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金
