【摘 要】
:
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
【机 构】
:
Department of Chemistry and Chemical Engineering,Changchun Institute of Applied Chemistry
论文部分内容阅读
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 complex 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.
其他文献
通过运用蒙特卡罗方法,研究了熵指数对多重数分布的宽度和形状的依赖性,并和NA22实验结果作比较.发现,熵指数对多重数分布的形状变化不敏感,但是却随着分布宽度的增加而减小.
通过熔合蒸发反应65Cu+19F,66Zn+18O及68Zn+16 O,在3种入射束流的能量分别为75MeV,76MeV及80MeV研究了80Rb高自旋态的能级结构.增加了20多条新的γ跃迁,在已知负宇称转晕带上
Bacterial strain PYX-6 that utilizes anthracene, phenanthrene, or pyrene for carbon and energy sources for growth was isolated from a non-polluted lake (Tianchi
针对粲夸克偶素 (Q Q)质量大而寿命长的特点 ,利用最大非微扰强作用反应假说的结果和由此导出的在Q Q之间交换组成Pomeron的色八重态胶团时振幅不存在非微扰型么正修正项的特
近年来,建构主义学习理论引起了人们的广泛关注并成为教育理论界的一个研究热点.其核心观点"自主学习,主动建构"一方面与以人为本的教育理念相吻合,另一方面又与信息化的教育
介绍了用能保证哈密顿系统"辛"性质的Lie映射方法来研究电子储存环中的插入元件对束流动力学的影响.并以此方法对合肥光源中将要安装的波荡器UD-1对储存环的影响作了初步的研
利用单粒子交换方法,研究了D介子衰变到两个赝标粒子中的末态相互作用.通过实验数据中抽取的强相角来分析末态相互作用的效应.
利用相干渡越辐射(CTR)测量短和超短电子束团长度是国际上束测领域新发展的频域测量技术.文中理论分析和数值计算了北京自由电子激光装置的皮秒级的射频电子束团序列产生的CT
Nanogold particles in different sizes, from 5 to 60 nm, were utilized to modify the surface of the quartz crystal microbalance (QCM). It was found that the gold
用标准放射源进行模拟核材料库房监控实验,当放射源被转移出系统的时候,在不同位置探测了γ计数率变化,根据γ计数率变化的距离平方反比规律实现了被转移的放射源的定位,并估