摘要
Reactions of samarium triiodides with 2 equivalents of potassium 2-methoxyethyl- cyelopentadienyl or 1 equivalent of potassium 2-methoxyethylcyclopentadienyl in tetrehydrofuran afford bis- (2-methoxyethylcyclopentadienyl) samarium iodide complex Cp′_2 SmI 1 (Cp′=MeOCH_2CH_2C_5H_4),and (2- methoxyethylcyclopentadienyl) samarium diioidide complex Cp′SmI_2·2THF 2.Compound 1 crystallizes from THF/hexane in orthorhombic space group P2_12_12_1 with cell dimensions a= 11.074(4),b= 12.929(9), c=12.269(4) ,V=1756.9 ~3 and D_(cacld)=1.978 g/cm^3 for Z=4.The central metal Sm is coordinated with two Cp′ ring centroids,one iodine atom and two oxygen atoms of Cp′ forming a distorted trigonal bipyramid.The coordination number of Sm (Ⅲ) in 1 is 9.The crysal of 2 belongs to the monoclinie crystal system,space group P2_1/c with a=16.304(6),b=8.335(2),c=16.527(5) ,β=111.8 (1)°,V= 2085.3 ~3 D_(cacld)=2.138 g/cm^3 and Z=4.The central metal Sm is coordinated by one Cp′ ring centroid, two iodine atoms,one oxygen atom of Cp′ and two oxygen atoms of THF forming a distorted octahedron. The coordination number of Sm (Ⅲ) in 2 is 8.
Reactions of samarium triiodides with 2 equivalents of potassium 2-methoxyethyl-cyelopentadienyl or 1 equivalent of potassium 2-methoxyethylcyclopentadienyl in tetrehydrofuran afford bis-（2-methoxyethylcyclopentadienyl） samarium iodide complex Cp′<sub>2</sub> SmI 1 （Cp′=MeOCH<sub>2</sub>CH<sub>2</sub>C<sub>5</sub>H<sub>4</sub>）,and （2-methoxyethylcyclopentadienyl） samarium diioidide complex Cp′SmI<sub>2</sub>·2THF 2.Compound 1 crystallizesfrom THF/hexane in orthorhombic space group P2<sub>1</sub>2<sub>1</sub>2<sub>1</sub> with cell dimensions a= 11.074（4）,b= 12.929（9）,c=12.269（4） ,V=1756.9 <sup>3</sup> and D<sub>cacld</sub>=1.978 g/cm<sup>3</sup> for Z=4.The central metal Sm is coordinatedwith two Cp′ ring centroids,one iodine atom and two oxygen atoms of Cp′ forming a distorted trigonalbipyramid.The coordination number of Sm （Ⅲ） in 1 is 9.The crysal of 2 belongs to the monoclinie crystalsystem,space group P2<sub>1</sub>/c with a=16.304（6）,b=8.335（2）,c=16.527（5） ,β=111.8 （1）°,V=2085.3 <sup>3</sup> D<sub>cacld</sub>=2.138 g/cm<sup>3</sup> and Z=4.The central metal Sm is coordinated by one Cp′ ring centroid,two iodine atoms,one oxygen atom of Cp′ and two oxygen atoms of THF forming a distorted octahedron.The coordination number of Sm （Ⅲ） in 2 is 8.
基金
the National Natural Science Foundation of China
