摘要
合成了镝的钼硅杂多配合物K_(10)H_3[Dy(SiMo_(11)O_(39))_2]·20H_2O,用X射线单晶结构分析,确定其空间群为P2_1/n,晶胞参数.结果表明:SiMo_(11)O_(39)^(8-)作为四齿配体与Dy配位,Dy与8个氧原子配位,形成四方反棱柱.K离子的配位数有6、7、8、和94种.讨论了该配合物的振动光谱.
Molybdosilicic heteropoly complex with dysprosium and its single crystal were prepared. The crystal structure with space group .P21/n was determined by means of X-ray single crystal structure analysis method, the unit cell parameters are as follows: a=17. 256(1) A , b=26. 817(1)A , c = 21.797(1)A,β=104. 39(1)°,V = 9770. 2 A3. Z=4, F (000) = 8140,Dc=2. 94 g/cm3. The results show that the dysprosium atom is coordinated to eight oxygen atoms which are from two tetraden-tate ligands SiMo11O398-. The point-group for its local symmetry is pseudonym D4d(staggered). Potassium atoms are coordinated to six,seven, eight or nine O-atoms. Vibration spectrum of the title complex was also discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第1期1-5,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
镝
杂多配合物
晶体结构
振动光谱
Molybdosilicic heteropoly complex, Dysprosium, Crystal structure, Synthesis
