柔性环己烷六酸和刚性草酸配体桥连的稀土配位聚合物的水热合成与结构研究

草酸铽与水合环己烷六酸(H6LⅠ.H2O)(顺式椅式构型LⅠ:a,e,a,e,a,e)在水热条件下反应生成一种新颖的三维稀土配位聚合物[Tb4(LⅡ)(ox)3(H2O)8](LⅡ为反式椅式构型:e,e,e,e,e,e;ox为草酸根),通过元素分析和红外光谱对这个配位聚合物进行了表征。X射线单晶衍射分析表明该配合物属于三斜晶系,P1空间群,晶胞参数为:a=0.60203(4)nm,b=1.08278(8)nm,c=1.29446(9)nm,α=67.908 0(10)°,β=82.109 0(10)°,γ=83.887 0(10)°,V=0.773 07(9)nm3,Z=2。在这个配合物的形成中,顺式构型的H6LⅠ配体发生构型转变形成LⅡ配体,LⅡ配体采取μ8-桥连模式将Tb离子连接成一个具有孔洞的二维(Tb-LⅡ)配位层。由μ2-和μ4-桥连模式构成的一维(Tb-ox)链将二维(Tb-LⅡ)层连接成一个具有孔道的三维配位框架,ox配体和水分子通过配位作用和氢键作用填充在孔道中。     

基于2，6-二(2-苯并咪唑基)吡啶配体的锌(Ⅱ)、镍(Ⅱ)配合物的合成、晶体结构及荧光性质

通过水热反应,合成了2,6-二(2-苯并咪唑基)吡啶(BBPY)和2,6-吡啶二羧酸(DPA)的锌髤配合物[Zn(BBPY)(DPA)].H2O(1)及镍髤配合物[Ni(BBPY)2]SO4(2)。对它们进行了元素分析、红外光谱、热重等表征,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,Cc空间群,晶胞参数a=1.6945(12)nm,b=1.2721(9)nm,c=1.0658(7)nm,β=92.506(12)°。配体2,6-二(2-苯并咪唑基)吡啶中的3个氮原子与2,6-吡啶二羧酸中的1个氮和2个羧基氧原子与锌髤配位,形成六配位的畸变八面体构型;配合物2也属单斜晶系,P21/c空间群,晶胞参数a=1.3735(8)nm,b=1.3838(8)nm,c=2.0270(11)nm,β=106.133(10)°。配体中每个2,6-二(2-苯并咪唑基)吡啶中的3个氮原子与镍髤配位,也形成六配位的畸变八面体构型。室温固态荧光测试显示,配合物1在428.9 nm(λmax)处具有强的荧光发射。     

基于环己二酸和双苯并咪唑配体的一维钴(Ⅱ)配位聚合物的合成、结构和催化性能研究

水热条件下,合成了钴(Ⅱ)配位聚合物{[Co(L)(chdc)].2H2O}n(1)(L=1,3-二(苯并咪唑-1-甲基)苯,H2chdc=1,4-环己烷二酸)。结构分析表明,配合物1的晶体属于单斜晶系,C2/c空间群,晶胞参数为a=1.4504(1)nm,b=1.834 9(2)nm,c=2.128 7(2)nm,β=94.325(1)°,V=5.649 2(9)nm3,Z=4。该配合物为一维环状链结构,并进一步通过链间的π-π作用自组装成二维超分子结构。配合物1作为类芬顿反应的催化剂降解刚果红显示较高的活性。     

基于酰腙和菲咯啉配体的镉、铜配合物的水热合成、晶体结构和性质

合成了一种酰腙类[ONO]三齿Schiff碱5-溴水杨醛缩噻吩-2-甲酰腙(H_2Brsth),并以菲咯啉(Phen)为第二配体通过水热反应制备了两种金属配合物[Cd_2(μ-Brsth)_2(Phen)_2](1)和[Cu(Brsth)(Phen)](2),经元素分析、红外光谱、紫外光谱、荧光光谱、热重分析和X射线单晶衍射分析对它们进行了表征。1的晶体属单斜晶系,C2/c空间群,晶胞参数a=2.116 36(13)nm,b=1.163 35(7)nm,c=1.872 43(12)nm,β=100.981(2)°,V=4.525 6(5)nm~3,Z=4;2的晶体属三斜晶系,P1空间群,晶胞参数a=0.911 7(2)nm,b=1.089 4(3)nm,c=1.272 9(3)nm,α=64.923(4)°,β=82.006(5)°,γ=67.768(5)°,V=1.059 6(5)nm~3,Z=2。1是一种双核配合物,Cd髤的配位环境为畸变的八体构型;2是一种单核配合物,Cu髤则处于四方锥配位环境。配合物1在443 nm激发光作用下可发射很强的绿色荧光,最大发射波长525 nm,而配体的荧光发射峰则位于475 nm。     

由联苯二甲酸构筑的锌、镉配位聚合物的合成、结构及性质研究

用凝胶扩散法合成了2个新型的配位聚合物{[Zn(bpdc)(H2O)2].H2O}n(1)和[Cd(bpdc)(H2O)2]n(2)(H2bpdc=4,4′-联苯二甲酸)。X-射线单晶衍射分析表明配合物1属于单斜晶系,C2/c空间群,晶胞参数为a=0.693 66(11)nm,b=3.160 7(5)nm,c=0.626 80(9)nm,β=96.467°;配合物2属于正交晶系,Pnma空间群,晶胞参数为a=0.586 69(7)nm,b=2.914 1(4)nm,c=0.786 63(10)nm。热重分析和荧光光谱分析表明配合物1和2的热稳定性较好,与游离配体相比其荧光的发射波长发生红移而强度明显增强。     

一维链状配位聚合物{[Cu(μ-H_2L)(L)Cl](ClO_4)_3}_∞的合成、结构及磁性研究(L=N,N'-双(吡啶基-3-亚甲基)-1,5-二氮环辛烷)

设计合成了一个新型吡啶基二氮环配体L(N,N'-双(吡啶基-3-亚甲基)-1,5-二氮环辛烷)及其铜配位聚合物{[Cu(滋-H2L)(L)Cl](ClO4)3}∞(1),研究了此配合物的晶体结构、光谱及磁性质。该配合物属正交晶系,Pnma空间群,晶胞参数为a=3.5170(17)nm,b=1.0440(5)nm,c=1.1966(6)nm,V=4.394(4)nm3,Z=4。配体L以顺式螯合和反式桥联两种不同的配位形式将铜离子连接起来形成一维链状阳离子结构。     

新型Co(Ⅱ)配位聚合物的溶剂热合成与晶体结构

利用柔性含咪唑基配体1,3,5-三(咪唑-1-甲基)苯(L)与硫酸钴在溶剂热条件下反应,得到了一个配位聚合物{[Co(L)(EG)0.5(H2O)(SO4)]·EG·H2O}n(EG=乙二醇),并利用元素分析、红外光谱、X-射线单晶衍射等方法对其进行了表征。研究结果表明:此配合物属于三斜晶系,P1空间群,晶胞参数a=0.87430(9)nm,b=1.17042(13)nm,c=1.31161(14)nm,α=83.830(2)°,β=78.004(2)°,γ=73.938(2)°,V=1.2598(2)nm~3,Z=2。配合物中配体L连接Co(Ⅱ)形成一维链状结构,EG分子在配合物中连接链内的两个Co(Ⅱ)金属中心,硫酸根离子作为端基配体与Co(Ⅱ)配位。固态配合物中相邻的一维链通过分子间氢键O-H···O作用进一步构建为二维超分子结构。热重分析结果表明其配合物具有较好的热稳定。     

配合物[Cd（1,3-BDC）（L）（H2O）2]·H2O的水热合成、晶体结构和荧光性质

利用水热方法制备了一个新的过渡金属镉配合物[Cd(1,3-BDC)(L)(H2O)2]·H2O(1,3-H2BDC=间苯二甲酸,L=2-(3-吡啶基)-1H-苯并咪唑),并通过元素分析、红外光谱和X-射线单晶衍射方法确定了该配合物的晶体结构.结构分析表明该配合物属于单斜晶系,P21/c空间群,晶胞参数a=1.016 41(6)nm,b=2.088 42(12)nm,c=1.001 38(6)nm,β=106.336 0(10)°,V=2.039 8(2)nm3,Z=4,R1=0.020 7,wR2=0.494.配合物中CdⅡ离子与L配体的1个吡啶N原子、1,3-BDC的4个氧原子和2个配位水的O原子配位,形成七配位的扭曲十面体结构.配体1,3-BDC的桥连相邻的CdⅡ离子形成一维聚合物链,相邻链间通过氢键和π…π作用形成三维超分子网络,并对该配合物的热稳定性和荧光性质进行了研究.     

一维链状配位聚合物{[Cu(μ-H2L)(L)Cl](ClO4)3}∞的合成、结构及磁性研究(L=N,N′-双(吡啶基-3-亚甲基)-1,5-二氮环辛烷)

设计合成了一个新型吡啶基二氮环配体L(N,N′-双(吡啶基-3-亚甲基)-1,5-二氮环辛烷)及其铜配位聚合物{[Cu(μ-H2L)(L)Cll(ClO4)3l}∞(1),研究了此配合物的晶体结构、光谱及磁性质.该配合物属正交晶系,Pnma空间群,晶胞参数为a=3.5170(17)nm,b=1.0440(5)nm,c=1.1966(6)nm,V=4.394(4)nm3,Z=4.配体L以顺式螯合和反式桥联两种不同的配位形式将铜离子连接起来形成一维链状阳离子结构.     

两个异亚硝基乙酰丙酮-n-芳基亚胺Pd(Ⅱ)配合物的合成、谱学性质和PdCl(C6H5一IAI)(C6H5NH2)的晶体结构

合成了两个异亚硝基乙酰丙酮-n-芳基亚胺的Pd(Ⅱ)配合物,PdCl(C6H5一IAI)(C6H5NH2)(1)和PdCl(P-CH3C6H4－IAI)(P-CH3C6HtNH2)(2),并测定了配合物1的晶体结构.配合物1晶体属正交晶系,空间群为Pca2l,晶胞参数a一1.858 7(4)nm,b＝0.938 0(2)nm,c一2.123 7(4)nm,2=8,F(000)一1 760,μ＝1.160 mm-1,R1＝O.027 二齿Schiff碱配体的异亚硝基(肟基)的N原子和亚胺的N原子,苯胺基N原子和CL-离子与Pd(Ⅱ)配位,形成PdN3Cl平面正方形配位构型.红外和喇曼光谱表明,形成配合物后νC=O和νc=N 移向低频,而vN-.o则移向高频.电子光谱说明存在π-π*和d-π*跃迁     

镍(Ⅱ)/2,4,6-吡啶三酸配合物的合成和结构(英文)

采用水热方法合成了镍(Ⅱ)/2,4,6-吡啶三酸(H3L=2,4,6-pyridinetricarboxylic acid)的配合物(1);利用红外光谱和单晶X射线衍射表征了其晶体结构.配合物1属三斜晶系,P-1空间群,晶胞参数为:a=1.020 27(15)nm,b=1.112 93(17)nm,c=1.461 6(2)nm,α=75.026(3)°,β=78.291(2)°,γ=65.384(2)°,V=1.449 0(4)nm3,Z=2.配合物中的镍(Ⅱ)离子处于两种不同的配位环境.其中部分镍(Ⅱ)离子与配体中的两个羧基及氮原子配位,其余的镍(Ⅱ)离子与六个水分子配位;而配体吡啶环上的4-位羧基未与Ni(Ⅱ)离子配位.与此同时,配合物中形成复杂的氢键,通过氢键连接形成三维结构.     

含有微孔结构的吡啶二羧酸金属锰配位聚合物(英文)

<正>0 Introduction The realm of crystal engineering has provided a sound junction between aesthetics of crystalline architectures[1-2]and their potential functions[3-4],of which the ultimate destination is to successfully achieve     

新型吡啶基羧酸席夫碱配体镍配合物的合成和晶体结构

通过新合成的吡啶基羧酸席夫碱配体（5-(吡啶基-3-亚甲基氨基)间苯二甲酸H2L）,和镍盐反应制备了一个新的镍配合物{[Ni(HL)₂(H₂O)₂]·2H₂O}_n(1),利用元素分析及X-射线单晶衍射对其进行了表征。结构分析结果表明标题化合物属于三斜晶系,P1 空间群,晶胞参数为a=0.764 79(11) nm,b=0.870 49(13) nm,c=1.081 13(16) nm,α=85.583(2)°,β=82.614(2)°,γ=81.565(2)°,V=0.704 82(18) nm³,Z=1,D_c=1.586 g·cm^-3,μ=0.763 mm^-1,F(000)=350。在配合物的结构中,Ni(Ⅱ)的配位构型为畸变的八面体。配合物中每个配体通过羧酸氧和吡啶氮原子和金属配位形成一维链状结构,并通过体系中丰富的氢键作用链接成为三维框架并加以稳定。     

Syntheses and characterizations of three-dimensional channel-like polymeric lanthanide complexes constructed by 1,2,4,5-benzenetetracarboxylic acid

The hydrothermal reaction of YbCl(3) small middle dot6H(2)O with 1,2,4,5-benzenetetracarboxylic dianhydride resulted in [[Yb((b)btec)(1/4)((d)btec)(3/6)(H(2)O)(2)](4).6H(2)O](n)() (1) (H(4)btec = 1,2,4,5-benzenetetracarboxylic acid), and the solvothermal reaction of Er(NO(3))(3) small middle dot6H(2)O or TbCl(3).6H(2)O with 1,2,4,5-benzenetetracarboxylic dianhydride in H(2)O/acetic acid gave rise to [[Er(2)((c)btec)(2/4)((e)btec)(2/4)((f)btec)(2/4)(H(2)O)(4)].4H(2)O](n)() (2) and [[Tb(H(2)btec)(2/4)((f)btec)(3/6)(H(2)O)].2H(2)O](n)() (3), respectively. Complex 1 crystallizes in monoclinic space group C2/m with a = 20.8119(5) A, b = 17.6174(1) A, c = 5.7252(2) A, beta = 92.324(1) degrees, and Z = 1. 1 possesses a three-dimensional framework consisting of eight-coordinate ytterbium centers and two kinds of channels along the c axis. Complex 2 crystallizes in triclinic space group P with a = 9.6739(5) A, b = 11.0039(5) A, c = 11.5523 A, alpha = 104.8330(10) degrees, beta = 91.0000(10) degrees, gamma = 114.2570(10) degrees, and Z = 2. 2 has a three-dimensional framework comprising both eight- and nine-coordinate erbium centers and channels along the a axis. Complex 3 crystallizes in monoclinic space group P2(1)/n with a = 10.7246(12) A, b = 7.1693(9) A, c = 17.158(2) A, beta = 97.109(2) degrees, and Z = 4. 3 shows a three-dimensional framework containing nine-coordinate terbium centers and channels along the b axis. Uncoordinated water molecules occupy the channels in the three complexes. TGA and XRPD were determined for the three complexes, and the results illustrate that the framework of 1 is retained upon removal of uncoordinated and coordinated water molecules.     

Hydrothermal Synthesis and Crystal Structure of a Novel Dinuclear Co(Ⅱ) Complex: [Co2(2,2(')-bpy)2((-L)2(L)2(μ-H2O)] (HL = 4-Chlorobenzoic Acid)

A new 4-chlorobenzoic acid bridge Co(Ⅱ) complex [Co2(2,2(')-bpy)2(μ-L)2(L)2(μ- H2O)] (HL = 4-chlorobenzoic acid) has been obtained by hydrothermal synthesis, and X-ray single-crystal diffraction analysis shows that it crystallizes in the monoclinic system, space group C2/c with a = 22.537(5), b = 16.212(3),c = 15.306(3)(A), β= 124.37(3)°, V = 4616.1(16) (A)3, Mr = 1070.45, Dc = 1.540 g/cm3, Z = 4, μ = 1.012 mm-1, F(000) = 2176, the final R = 0.0338 and Wr = 0.0810. The title complex is composed of dinuclear [Co2(2,2(')-bpy)2(μ-L)2(L)2(μ-H2O)] molecules. Each Co(Ⅱ) atom is coordinated by two nitrogen atoms from one 2,2'-bipyridine ligand, three oxygen atoms from three 4-chlorobenzoic ions and another oxygen atom from one water molecule. The two Co(Ⅱ) atoms are connected by two 4-chlorobenzoic ions and one bridged water molecule. The dinuclear molecules are interlinked by hydrogen bond and π-π stacking interactions into a three-dimensional supramolecular network.     

Preparation of acentric porous coordination frameworks from an interpenetrated diamondoid array through anion-exchange procedures: crystal structures and properties

The formation, crystal structures, and properties of a series of three-dimensional (3-D) Cu(II) coordination polymers, [[Cu(L)2(H2O)2](PF6)2(H2O)(1.25)]n (1), [[CuL(N3)2](H2O)(1.5)]n (2), and [[CuL(H2O)(SO4)](H2O)2]n (3), with an angular bridging ligand 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (L) are reported. Complex 1 crystallizes in the tetragonal I4(1)/a space group (a = b = 13.462(2) A, c = 46.47(1) A, Z = 8), complex 2 in the orthorhombic Pna2(1) space group (a = 6.379(2) A, b = 10.060(3) A, c = 27.232(9) A, Z = 4), and complex 3 in the orthorhombic P2(1)2(1)2(1) space group (a = 5.510(2) A, b = 10.576(4) A, c = 28.34(1) A, Z = 4). Different polymeric frameworks are obtained by only varying the counterions. These include the 2-fold interpenetrated diamondoid structure of 1, the acentric alpha-Po network of 2, and the chiral open framework of 3 with (6(3)).(6(9).8) topology. The interesting anion-exchange, porous, and magnetic properties of these coordination supramolecules have been investigated in detail.     

两个镉的配位聚合物的原位水热合成、晶体结构与荧光性质

在水热条件下, 以3-氨基-1,2,4-三唑-5-甲酸(AmTHZAC)为配体, 原位反应得到了两个镉的配位聚合物 Cd(AmTAZ)Cl(1)和[Cd(AmTAZ)(BDC)(H2O)2]·1.25H2O(2)(AmTAZH=3-amino-1,2,4-triazole, H2BDC=benzene-1,4-dicarboxylic acid), 采用红外光谱、差热-热重、CHN元素分析及单晶X射线衍射等手段对晶体结构进行了表征, 并研究了化合物1和2的荧光性质. 化合物1属正交晶系, P2(1)2(1)2(1)空间群, a=0.6452(3) nm, b=0.7848(5) nm, c=1.0449(6) nm, V=0.5291(5) nm3, Z=4, 最后一致性因子[I＞2σ(I)], R1=0.0226, wR2=0.0377, GOF=1.087. 化合物2属正交晶系, Pmc2(1)空间群, a=0.7100 nm, b=0.9920 nm, c=1.2561 nm, V=0.8847 nm3, Z=8, 最后一致性因子[I＞2σ(I)], R1=0.0934, wR2=0.2456, GOF=1.031.     

Structural Studies and Photoluminescence of a Novel Mercury（Ⅱ） Complex Based on a Tris[4-（1-pyrazolyl）-phenyl]amine

A novel iodine-bridged mercury（Ⅱ） complex [Hg（L）（μ-I）（I）]2 was isolated by a reaction between HgI2 and the organic ligand tris[4-（1-pyrazolyl）phenyl]amine L, and the complex and ligand were both characterized by FT-IR spectroscopy, ^1H NMR and elemental analysis. The complex crystallizes in monoclinic space group P21/c with a = 9.579（5）, b = 27.331 （5）, c = 11.268（5） А, β= 105.624（5）°, Z = 2, Dc = 2.099 g·cm^-3 and μ= 7.620 mm^-1. The title complex C54H42Hg2I4N14 is a diplex bridged dinuclear complex consisting of two Hg（Ⅱ） ions, two ligands, two bridging I-anions, and two terminal I-anions. Universal hydrogen bonds in the complex with the partners of neighboring molecule have generated a supramolecular arrangement. Solid-state emission of the ligand and its complex have been investigated at room temperature.     

不对称三芳基三氮唑的钴配合物中三氮唑-吡啶间二面角的反常变化

以3-对甲氧基苯基-4-对溴苯基-5-(2-吡啶基)-1,2,4-三氮唑(L)作为配体,合成了1个钴配合物[CoL2(H2O)2](ClO4)2.2C2H5OH,对其进行了红外、电喷雾质谱、热重分析和单晶结构表征,该配合物属于单斜晶系,空间群P21/n,a=0.876 3(5)nm,b=3.384 4(18)nm,c=0.920 3(5)nm,β=102.961(8)°,V=2.660(2)nm3,Z=2,R1=0.064 4。单晶结构表明,钴离子处于1个扭曲的八面体配位环境中,2个水分子呈反式配位,每个配体L通过三氮唑上的1个氮原子和吡啶氮原子参与配位。配体配位后三氮唑-吡啶间二面角反而变大。热重分析表明该配合物在345℃开始发生分解。