论文部分内容阅读
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 crystallizesfrom 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 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_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’_2SmI 1 (Cp ’= MeOCH_2CH_2C_5H_4), and (2 -methoxyethylcyclopentadienyl) samarium diioidide complex Cp’SmI_2 · 2THF 2.Compound 1 crystallizesfrom 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 trigonalbipyramid.The coordination number of Sm (III) in 1 is 9. The crysal of 2 belongs to the monoclinic crystal system, space group P2_1 / c with a = 16.304 (6), b = 8.335 (2), c = 16.527 (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.