二苯甲酰甲烷和N，N-二甲基丙二胺混配体的锌和镉配合物的合成、晶体结构和热性质研究

合成了二苯甲酰甲烷与N,N-二甲基丙二胺混配配合物Zn(dmapa)(dbm)₂(1) 和Cd(dmapa)(dbm)₂(2)。用元素分析、红外光谱对配合物进行了表征,并用X-射线单晶衍射测定了配合物的晶体结构。配合物1属单斜晶系,P2₁/n空间群;配合物2属三斜晶系,P1 空间群。中心金属离子(Zn、Cd)与来自2个dbm^-配体的4个O原子和来自dmapa配体的2个N原子配位,形成变型的八面体构型。研究了2个配合物的热稳定性。     

A 2-D Copper Coordination Polymer [Cu(4,4''''-bpy)(H_2O)_4](C_4H_2O_4)(H_2O)_4 Integrated by Hydrogen Bonds and VDW Interactions

1 INTRODUCTION A great deal of interest in transition metal com- plex assembly has recently been devoted to the development of rational synthetic routes to novel one-, two- and three-dimensional crystal frameworks, due to their potential applications in…     

Synthesis, Crystal Structure and Luminescence Property of [Co(hmz)_2(H_2O)_4]·2H_2O

A new mononuclear Co(II) complex, [Co(hmz)2(H2O)4]·2H2O, has been synthesized by the reaction of Co(CH3COO)2·4H2O with 1-(4-hydroxyphenyl)-5-mercaptotetrazole (Hhmz). It crystallizes in the monoclinic system, space group P21/n with a = 13.502(5), b = 6.718(3), c = 13.972(6) , β = 117.532(4)o, V = 1123.9(8) 3, Z = 2, M r = 553.45, F(000) = 570, Dc = 1.635 g/cm3, μ = 1.008 mm–1, the final R = 0.0272 and wR = 0.0684 for 2194 observed reflections (I > 2σ(I)). The Co(II) is six-coordinated by two nitrogen atoms from two hmz–1 ligands and four water molecules, forming an octahedral geometry. The intermolecular hydrogen bonding and offset-panel π-π stacking interactions between the adjacent molecules extend the compound into a three- dimensional supramolecular framework. The title compound emits strong blue fluorescent light (λem(max) = 427 nm) at room temperature and is red-shifted compared with free ligand Hhmz (λem(max) = 342 nm).     

萘氧乙酸构筑的铕(Ⅲ)和钐(Ⅲ)配合物的水热合成、晶体结构及荧光性质

用水热方法合成了2个异质同晶镧系稀土配位聚合物,{[Ln₂(2-naph)₄(H₂O)₂](2-naph)₂·2H₂O}_n(Eu,1;Sm,2)(2-naph=2-萘氧乙酸根),并通过X-射线衍射的方法测定了它们的结构。2个配合物均为沿着b轴方向扩展的一维链结构,是由一对2-萘氧乙酸配体连接二聚体单元[Ln₂(2-naph)₄(H₂O)₂]而形成的。在每个[Ln₂(2-naph)₄(H₂O)₂]二聚体单元中,2个螯合-桥连配位模式的2-萘氧乙酸配体和2个桥连配位模式的2-萘氧乙酸配体连接2个Ln(Ⅲ)原子形成了1个次级构筑单元(SBU)。每个Ln(Ⅲ)原子与1个水分子和6个2-萘氧乙酸配体进行连接,形成了1个八配位的变形的四方反棱柱的配位环境。另外,2个桥连配位的2-naph连接2个相邻的Ln(Ⅲ)原子形成了1个8-原子环。单链通过O-H…O氢键连接形成了二维层状超分子结构。此外,配合物1和2的热重分析以及室温下的固态荧光性质也在文中得到进一步研究和讨论。     

H键连接的三维超分子化合物[M(H2O)6](HL)2的合成、表征与结构[H2L=1-(4-羟基苯)-5-四氮唑硫乙酸，M=MnⅡ，CoⅡ，NiⅡ，ZnⅡ]

利用配体1-(4-羟基苯)-5-巯基四氮唑(H₂L)和金属盐酸盐在水溶液中反应,合成了4种离子型化合物,并测定了它们的晶体结构。分析结果显示它们是异质同晶,都属于P1空间群,分子通式为[M(H₂O)₆](HL)₂[M=Mn^Ⅱ (1),Co^Ⅱ (2),Ni^Ⅱ (3),Zn^Ⅱ (4     

Tb(Ⅲ)金属有机框架材料对Cu^2+和Fe^3+的荧光检测

通过溶剂热法成功合成出一种新型的配位化合物,命名为[Tb(L)(H2O)2]n(1)(H3L=4,4’,4"-((1,3,5-三嗪-2,4,6-三基)三(硫代二基))三苯甲酸)。单晶衍射分析结果显示配合物1属于单斜晶系,C2/c空间群。所有的配体桥连金属离子形成了一个具有一维孔道的三维框架。此外,荧光研究结果表明:Cu^2+和Fe^3+对配合物1具有明显的荧光淬灭响应。     

基于2，6-双(3'-吡啶)-四硫富瓦烯的Zn/Co配位聚合物的光电流响应特性

首次报道了以2,6-双(3''-吡啶)-四硫富瓦烯(3''-py-TTF-3-py)为配体得到的2个新型配位聚合物：[Zn(3''-py-TTF-3-py)₂(TPA)]_n(1)和[Co(3''-py-TTF-3-py)₂(TPA)]_n(2)(H₂TPA=对苯二甲酸)。X射线单晶衍射结果显示配合物1和2为异质同晶结构。光电流测试结果表明,S…S键的相互作用和配合物的配位中心金属离子都对光电流响应信号有着明显的影响。     

Syntheses, Characterizations, Crystal Structures and Antibacterial Activities of Two Zinc(II) Complexes with a Schiff Base Derived from o-Vanillin and p-Toluidine

Two new zinc(II) complexes, [Zn2L2Cl4]·2[ZnL(CH3OH)Cl2] 1 and [ZnL2(NO3)2] 2, were synthesized by reacting ZnX2·nH2O (X = Cl-, NO3-) and a Schiff base ligand 2-[(4-me- thylphenylimino)methyl]-6-methoxyphenol (C15H15NO2, L) which was obtained by the condensation of o-vanillin (2-hydroxy-3-methoxybenzaldehyde) with p-toluidine. Both 1 and 2 were characterized by single-crystal X-ray diffraction technique, elemental analysis, molar conductance, FT-IR, UV-Vis, 1H-NMR spectra and thermogravimetric analysis. The Schiff base ligand and its zinc(II) complexes have been tested in vitro to evaluate their antibacterial activity against bacteria, viz., Escherichia Coli, Staphylococcus aureus and Bacillus Subtilis. The results show that these complexes have higher activity than the corresponding free Schiff base ligand against the same bacteria.     

二维钡配位聚合物[Ba( μ5-1，8-nap)]n的水热合成、晶体结构和荧光性质

通过水热法合成得到1个以1,8-萘二酸(1,8-nap)为配体的Ba(Ⅱ)配合物 [Ba(μ₅-1,8-nap)]_n(1)。X射线单晶衍射测定结果表明：配合物属于单斜晶系,空间群P2₁/c。配合物最小不对称单元由1个九配位的钡原子和1个1,8-萘二酸配体构成。每个1,8-萘二酸配体连接五个钡原子,每个钡原子连接五个1,8-萘二酸配体,在(100)平面上形成二维双层结构。此外,对配合物的固态荧光性质做了测定,结果显示其在紫光区有荧光发射。     

由苯骈咪唑-5-羧酸构筑的Cd(Ⅱ)配合物的水热合成、晶体结构和荧光性质

通过水热合成的方法得到1个由苯骈咪唑-5-羧酸(HL)配体构筑的Cd(Ⅱ)配合物[Cd(L)₂(H₂O)]_n。在配合物中,镉中心为变形的八面体配位构型。每个配体连接着2个镉原子,每个镉原子通过4个配体相互连接,在bc面上形成以平行四边形为基本结构单元的二维层状结构,层与层之间通过N-H…O和O-H…O氢键连接形成三维超分子网络结构。此外,我们还研究和讨论了配合物的固态荧光性质。