【摘 要】
：
稀土金属的配位化合物不仅具有特殊的拓扑结构,还在气体吸附、光学、磁性、催化等功能材料领域有潜在的应用价值,因而备受关注[1].吡啶羧酸类配体因其含有吡啶环N原子和
【机 构】
：
福建师范大学化学与材料学院,福州,350007
论文部分内容阅读
稀土金属的配位化合物不仅具有特殊的拓扑结构,还在气体吸附、光学、磁性、催化等功能材料领域有潜在的应用价值,因而备受关注[1].吡啶羧酸类配体因其含有吡啶环N原子和羧基O原子,所以具有丰富多样的配位方式和较强的配位性能而被广泛应用于配位聚合物的合成当中.本文以5-(吡啶基-3-甲氧基)-间苯二甲羧酸(H2L)为有机配体,引入Sm3+为金属源在水热条件下反应得到了一个2D层状配位聚合物{[Sm2L3(H2O)4]·(4,4-bpy)·3H2O}n.化合物中Sm3+离子采取Sm(O9)单盖帽的四方反棱柱和Sm(O8)四方反棱柱两种不同的配位几何构型.两个相邻的Sm1离子之间和相邻Sm2离子之间均通过L2-配体上的1个羧基基团桥连形成双核单元.2个晶体学独立的L2-配体将这些相邻的{Sm2}单元连接形成1D链状结构.这些1D链之间进一步通过另一晶体学独立的L2-配体连接成二维层状结构,如图2所示.
其他文献
Recently, people have emphasized on closed shell systems (e.g.CH41, H2O2-4, Ar5) that have been found to form a number of new intriguing molecular compounds wit
The preparation of a new series of dinuclear zinc reagents is reported (eqs 1 and 2).Unlike α, ω-difunctionalized perfluoroalkyl di-Grignard reagents, which h
Due to its extreme sensitivity to a number of factors such as lattice mismatch, defect accumulation, interfacial bond formation, and dipoles formation, effe
In layered transition-metal dichalcogenides (TMDs), superconductivity often emerges in the vicinity of symmetry-breaking charge-density-wave (CDW) ground st
随着纳米科学技术的迅速兴起，量子点开始受到越来越多的关注。通过控制量子点的形状、结构与尺寸就可以调节其能隙，以满足器件设计的不同需要。本文选取MoS2量子点，对其结构
The spacecraft wrapped by the thermal protection system in service will inevitably suffer the hypervelocity impact by the space debris.
Millimeter-sized boron carbide ceramic hollow microspheres have promising practical application in the encapsulation of nuclear fusion materials in the fiel
In the presence of discharges,SF6 dissociation products (such as SF2,SF3 and SF4) react with the unavoidable trace water and oxygen,forming several toxic an
In this paper,we used FDTD Solutions software to simulate the reflectance of two-dimensional photonic crystal by changing duty ratio from 40%to 70%.The diff
Computer-generated holograms(CGHs)are commonly used in optical interferometry for producing reference wavefronts with desired shapes.Uncertainties from the