【摘 要】
：
The title complex [(ArO)2(THF)Sm(μ-OH)]2·2THF (Ar = C6H2-tBu3-2,4,6) was obtained by the hydrolysis of divalent (ArO)2Sm(THF)3·THF in toluene. It crystallize
【机 构】
：
Department of Chemistry
论文部分内容阅读
The title complex [(ArO)2(THF)Sm(μ-OH)]2·2THF (Ar = C6H2-tBu3-2,4,6) was obtained by the hydrolysis of divalent (ArO)2Sm(THF)3·THF in toluene. It crystallizes in monoclinic, space group P21/c with a = 14.7968(14), b = 18.6981(15), c = 16.8264(17) (A), β = 109.366(2)°, V = 4392.0(7) (A)3, Z = 2, C88H150O10Sm2, Mr = 1668.78, Dc = 1.262 g/cm3, F(000) = 1764 and μ(MoKα) = 1.377 mm-1. The final R and wR are 0.0318 and 0.0749, respectively for 9038 observed reflections with I > 2(σI). The complex possesses a dimeric structure with two centrosymmetric hydroxyl bridges. The samarium atom is coordinated by five oxygen atoms to form a distorted square pyramidal geometry with the average Sm-O(Ar) distance of 2.1757(19) (A). There are H-bond interactions be- tween the molecules.
其他文献
相对于优质校家长、学生、教师素质较高,项目、经费、社会资源调配充裕的情况,小规模学校如何突破办学困局,走特色发展之路,一直是研究及实践者所困扰、思考的问题.笔者根据
以氨基硫脲为初始原料,合成了5-氨基-1,3,4-噻二唑-2-硫基乙酰肼,再与不同的芳香醛(酮)反应,得到了12个标题化合物。其结构均经IR1、HNMR1、3CNMR和MS等测试手段所确认。
St
实验证明,芘功能化单分子层荧光薄膜的荧光能被溶液中的硝基苯显著猝灭,为了找到猝灭的根本原因,本文采用分子动力学模拟方法来研究猝灭的机理。模拟结果表明,该薄膜在真空环
Periodic wave solutions to the dispersive long-wave equations are obtained by using the F-expansion method, which can be thought of as a generalization of the J
A novel ZnO/Chitosan composite matrix was developed to fabricate the H2O2 biosensor.This material combined the advantages of inorganic species, ZnO, and organic
The classical deterministic dynamics of a Brownian particle with a time-dependent periodic perturbation in a spatially periodic potential is investigated. We ha
O-Phosphoryl serine derivative can perform self-catalytic esterification reaction in the mixture of CH3OH and CHCl3 at the room temperature. The phosphoryl grou
A series of novel oxazolidinone analogues were prepared by a new and efficient synthetic method and their antibacterial activities were determined. These compou
In this paper, four transformations are introduced to solve single sine-Gordon equation by using the knowledge of elliptic equation and Jacobian elliptic functi
When the motion of a particle is constrained, an excess term exists using hermitian form of Cartesian momentum pi (i = 1, 2, 3) in usual kinetic energy (1/2μ)