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[Ln(DMSO)_7Cl][BPh_4]_2(Ln=La、Nd、Sm、Eu、Gd、Tb、Dy、Tm)的合成、性质及[Eu(DMSO)_7Cl][BPh_4]_2的晶体结构

SYNTHESIS, PROPERTIES OF SOME LANTHANIDE(Ⅲ) COMPLEXES [Ln(DMSO)\-7Cl][BPh\-4]\-2 AND CRYSTAL STRUCTURE OF [Eu(DMSO)\-7Cl][BPh\-4]
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摘要 以二甲亚砜( D M S O) 作配体与三价希土离子配位,选用四苯硼酸根 B Ph4 - 作为大阴离子,合成了一系列希土配合物[ Ln( D M S O)7 Cl][ B Ph4]2( Ln = La 、 Nd 、 Sm 、 Eu 、 Gd 、 Tb 、 Dy 、 Tm) ,并用元素分析,红外光谱对其进行表征,采用单晶 X射线四圆衍射测定了[ Eu( D M S O)7 Cl][ B Ph4]2 的晶体结构。铕配合物属三斜晶系,空间群为 P1- ,晶胞参数 Eu : a = 12 .539(2) , b = 12 .755(2) , c = 24 .583(3)〓; α= 93 .406(8) , β= 104 .630(8) , γ= 112 .873(12)°, V= 3455 .4(8) 〓3 , Z= 2 , Mr = 1372 .73 , Dc= 1 .319 g·cm - 3 , μ= 1 .204 m m - 1 , F(000) = 1424 , R= 0 .0349 , Rw = 0 .0818 。配位大阳离子[ Eu( D M S O)7 Cl]2 + 中希土 Eu( Ⅲ) 的配位数是8 ,来自七个亚砜配体的亚磺酰基氧原子和一个氯离子与希土配位,形成一畸变的四方反棱柱大阳离子配位多面体,而四苯硼酸根仅? A series of complexes of LnCl\-3· n H\-2O with dimethylsulfoxide and sodium tetraphenylboron with general formula [Ln(DMSO)\-7Cl][BPh\-4]\-2 (Ln=La\, Nd\, Sm\, Eu\, Gd\, Tb\, Dy\, Tm) have been prepared and characterized by means of elemental analysis, IR spectra. The crystal and molecular structure of [Eu(DMSO)\-7Cl][BPh\-4]\-2 has been determined by single crystal X ray diffraction. The complexes of Eu crystallize in the triclinic system, space group \{\%P\%\{1-\}\}. a =12.539(2), b =12.755(2), c =24.583(3); α =93.406(8), β =104.630(8), γ =112.873(12)°, V =3455.4(8)\+3, Z=2, M r=1372.73, D c=1.319 g·cm\+\{-3\}, μ =1.204 mm\+\{-1\}, F (000)=1424, R =0.0349, R w=\{0.0818.\} The Eu(Ⅲ) ion is coordinated to a chloride and seven oxygen from seven monodenate dimethylsulfoxides. The coordination polyhedron around Eu is a distorted squar antiprism polyhedron. Tetraphenylboron anions BPh\-4\+- are charge equilibrium ions.\;\;
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 1999年第5期607-612,共6页 Chinese Journal of Inorganic Chemistry
关键词 配合物 二甲亚砜 亚砜 四苯硼酸盐 稀土 synthesis\ \ \ crystal structure\ \ \ lanthanide complex\ \ \ dimethylsulfoxide tetraphenylboron
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