摘要
在乙腈介质中培养出硝酸钪和苯并-15-冠-5形成的配合物单晶[Sc(NO_(3)),(H_(2)O)_(2))。(B15C5),对其进行了熔点、元素分析、红外光谱、摩尔电导等方面的鉴定。X射线结构分析表明,该晶体属单斜晶系,空间群为P2_(1)/n,晶胞参数为:α=9.405(6),b=15.569(8),c=15.896(2),β=95.92(1)°,V=2315.53,,Z=4,Dc=1.53g/cm^(3),D0=1.54g/cm^(3)。Sc(Ⅲ)离子同三个双齿硝酸根和两个水分子配位,构成八配位的配合物,并通过氢键与冠醚形成分子缔合物。
The single crystal of the complex[Sc(NO_(3)),(H3O)2[·(B15C5)has been prepared and characterized by elemental analyses,1R spectra and molar conductance.The structure of the complex is determined by X-ray single crystal diffraction analyses.The crystal of the complex is monoclinic,space group P2_(1)/n with cell parameters:a=9.405(6),b=15.569(8),c=15.896(2)A,β=95.92(1)°,V=2315.5A3,Z=4,Dc=1.538/cm^(3),D0=1.54g/cm^(3).The structure has been refined to R=0.051 and Rw=0.055 using 3172≥3σ(Ⅰ)observed data.Here the crown is not coordinated to the metal ion but is linked to the[Sc(NO_(3))3(H_(2)O)2]molecule by O...H-O bonds.The Sc-O bond lengths are 2.158(3)-2.254(3)A for nitrato-and 2.123(3)-2.143(3)A for water oxygens.
作者
谭民裕
甘新民
唐宁
邹今平
祝英
王欣
Tan Minyu;Gan Xinmin;Tang Ning;Zou Jinping;Zhu Ying;Wang Xin(Department of Chemistry,Lanzhou University,Lanzhou;Analysis and Testing Centre,Lanzhou University,Lanzhou)
出处
《高等学校化学学报》
SCIE
EI
CAS
1988年第12期1217-1221,共5页
Chemical Journal of Chinese Universities
基金
国家教育委员会资助课题。
