Reaction of (ArO)2Sm(THF)4 (ArO = 2,6-di- tert-butyl-4-methylphenolate) with Et2AlCl in THF gives SmCl2 (1) and (ArO)AlEt2(THF) (2) via ligand exchange. Complex 1 reacts with cyclooctatetraene (C8H8) to give [(C8H8)Sm...Reaction of (ArO)2Sm(THF)4 (ArO = 2,6-di- tert-butyl-4-methylphenolate) with Et2AlCl in THF gives SmCl2 (1) and (ArO)AlEt2(THF) (2) via ligand exchange. Complex 1 reacts with cyclooctatetraene (C8H8) to give [(C8H8)SmCl(THF)2]2(3).Crystal structural determinations show that compl 2 has a monomeric structure,the aluminum atom is coordinated by two carbon atoms and two oxygen atoms,to form a distorted tetrahedron. Complex 3 has a dimeric structure,the samarium atom is coordinated by a cyclooctatetraenyl ring,two chorine atoms and two oxygen atoms,the coordination number of the central metal is 9.展开更多
Reaction of [(ButCp)2Er(μ-Cl)]2 with ButLi in 1:1 molar ratio in THF at –78℃, after work-up, afforded the trimetallic erbium tetrahydride complex [Li(THF)4][{(ButCp)2Er(μ-H)}3 (μ3-H)] (1) by [β-hydrogen eliminat...Reaction of [(ButCp)2Er(μ-Cl)]2 with ButLi in 1:1 molar ratio in THF at –78℃, after work-up, afforded the trimetallic erbium tetrahydride complex [Li(THF)4][{(ButCp)2Er(μ-H)}3 (μ3-H)] (1) by [β-hydrogen elimination reaction. Crystal structure determination reveals that complex 1 has discrete ion pair structure. The anion is composed of three (ButCp)2Er units to form a triangle array connected by three bridged hydrogen atoms, and the fourth hydrogen atom coordinated to three Er3+ ions. The coordination num-ber for each Er3+ ion is 9.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.20072027).
文摘Reaction of (ArO)2Sm(THF)4 (ArO = 2,6-di- tert-butyl-4-methylphenolate) with Et2AlCl in THF gives SmCl2 (1) and (ArO)AlEt2(THF) (2) via ligand exchange. Complex 1 reacts with cyclooctatetraene (C8H8) to give [(C8H8)SmCl(THF)2]2(3).Crystal structural determinations show that compl 2 has a monomeric structure,the aluminum atom is coordinated by two carbon atoms and two oxygen atoms,to form a distorted tetrahedron. Complex 3 has a dimeric structure,the samarium atom is coordinated by a cyclooctatetraenyl ring,two chorine atoms and two oxygen atoms,the coordination number of the central metal is 9.
文摘Reaction of [(ButCp)2Er(μ-Cl)]2 with ButLi in 1:1 molar ratio in THF at –78℃, after work-up, afforded the trimetallic erbium tetrahydride complex [Li(THF)4][{(ButCp)2Er(μ-H)}3 (μ3-H)] (1) by [β-hydrogen elimination reaction. Crystal structure determination reveals that complex 1 has discrete ion pair structure. The anion is composed of three (ButCp)2Er units to form a triangle array connected by three bridged hydrogen atoms, and the fourth hydrogen atom coordinated to three Er3+ ions. The coordination num-ber for each Er3+ ion is 9.
