基于3,3′,5,5′-(1,3-苯基)-联苯四羧酸构筑的两个配位聚合物的合成、晶体结构和荧光性质(英文)

以3,3′,5,5′-(1,3-苯基)-联苯四羧酸(H4btb)与1,10-菲咯啉(phen)为配体,分别与硝酸镉和硝酸锌在水热条件下反应合成2个一维[Cd(H2btb)(phen)]n(1)和二维{[Zn2(btb)(phen)]·1.5H2O}n(2)配位聚合物,并对其进行了元素分析、红外光谱、热重分析和X-射线单晶衍射测定。配合物1属于单斜晶系,空间群为C2/c,晶胞参数:a=2.82845(13)nm,b=1.08554(5)nm,c=1.81768(8)nm,β=96.4850(10)°,V=5.5453(4)nm3,Z=8,Dc=1.670Mg·m-3,F(000)=2800,R1=0.0339,wR2=0.0718[I2σ(I)],配体H4btb的2个羧基分别采取μ1-η1∶η1、μ2-η2∶η1配位模式连接镉原子形成一维带状结构。化合物2也属于单斜晶系,空间群为P21/c,晶胞参数:a=1.7471(3)nm,b=1.2511(2)nm,c=2.1870(3)nm,β=120.911(11)°,V=4.1014(11)nm3,Z=4,Dc=1.491Mg·m-3,F(000)=1876,R1=0.0673,wR2=0.1749[I2σ(I)],全部去质子的H4btb配体的4个羧基分别采取μ1-η1∶η0、μ1-η1∶η1、μ2-η1∶η1配位模式连接锌原子形成一维链,链间通过μ2-η1∶η1桥连羧基扩展为(3,5)-连接的二维(42·67·8)(42·6)网状结构。同时研究了2个配合物的荧光性质。     

新型含硫化合物的合成及其晶体结构研究

通过简单的一步亲核取代反应合成了一新型含硫化合物(4-羧基甲硫醇基-2,3,5,6-四氯-苯硫醇基)乙酸(1),产物经乙酸乙酯重结晶分离纯化,并在适当的条件下培养得到单晶,测定了该化合物的晶体结构,以及其DMSO加合物的晶体结构.其中该化合物晶体属于单斜晶系,空间群为P21/c,a=0.508 93(4)nm,b=0.969 81(7)nm,c=1.439 1(1)nm,β=91.036(4)°,V=0.710 20(9)nm3,Z=2,Dc=1.843 g/cm3,F(000)=392,μ=1.133,R1[I2σ(I)]=0.097 3,wR2[I2σ(I)]=0.193 1.其DMSO加合物的晶体结构属于正交晶系,空间群为Pnma,a=1.372 48(2)nm,b=2.883 6(4)nm,c=0.461 48(6)nm,V=1.826 4(4)nm3,Z=4,Dc=1.703 g/cm3,F(000)=936,μ=1.010,R1[I2σ(I)]=0.088 8,wR2[I2σ(I)]=0.203 9.晶体结构分析表明,分子间氢键是这一化合物的一大特点.     

单核铜配合物[Cu~(II)(HIPP)(pydc)(H_2O)]的合成和晶体结构

用溶剂热合成方法合成了一个单核铜配合物CuII(HIPP)(pydc)(H2O),采用元素分析法和X射线单晶衍射法对该配合物的组成和结构进行了表征.配合物CuII(HIPP)(pydc)(H2O)属于正交晶系,空间群是Pbca.a=0.663 93(18)nm,b=2.062 2(6)nm,c=2.619 1(7)nm,α=90°,β=90°,γ=90°,V=3.585 9(17)nm3,Z=8,ρc=1.693g·cm-3,F(000)=1 864,GOF=0.882,R1=0.037 4,wR2=0.111 8[I2σ(I)].中心铜原子与配体脱质子2,6-吡啶二甲酸的2个羧基氧原子和1个氮原子、HIPP的1个氮原子和1个氧原子及1个水分子中的氧原子形成六配位的变形八面体.结构分析表明晶体中分子间含有氢键.     

[Cu(en)_2]~(2+)修饰的二维仲钨酸化合物:[{Na_3(H_2O)_(10)}_2H_2{Cu(en)_2(H_2W_(12)O_(42))}]·16H_2O(英文)

利用水热合成法制备了一种基于[Cu(en)2]2+修饰的仲钨酸化合物:[{Na3(H2O)10}2H2{Cu(en)2(H2W12O42)}].16H2O(en=乙二胺)(1),借助元素分析、X射线单晶衍射分析I、R、UV、热分析和X射线光电子能谱对这种化合物进行了结构和性质研究.化合物(1)属于三斜晶系,P-1空间群.晶胞参数为:a=1.183 2(5)nm,b=1.296 0(6)nm,c=1.416 9(6)nm,α=63.348 0(10)°,β=82.844 0(10)°,γ=68.907 0(10)°,V=1.810 0(14)nm3,Z=1,R1[I2σ(I)]=0.024 7,wR2[I2σ(I)]=0.058 2.化合物(1)通过仲钨酸阴离子,铜离子和[Na3(H2O)10]3+三核簇形成了新型的二维层状结构.     

对咪唑基苯甲酸镉(Ⅱ)配合物的合成及结构研究

利用水热法合成了2个新的对咪唑基苯甲酸镉配合物Cd(C10N2O2H7)2·H2O(1)和Cd2(H2O)5(C10N2O2H7)(C9O6H3)·4H2O(2),通过元素分析、红外光谱和X-射线单晶衍射进行了表征.结果表明:化合物1属于正交晶系,Pnna空间群,a=1.389 5(5)nm,b=1.665 4(5)nm,c=0.828 2(5)nm,V=1.916 5(15)nm3,Z=4,R1=0.026 3,wR2=0.0793;化合物2属于单斜晶系,P21/c空间群,晶胞参数a=1.370 2nm,b=1.751 1nm,c=1.255 7(4)nm,β=114.819(6)°,V=2.734 6(14)nm3,Z=4,R1=0.057 3,wR2=0.166 7.     

基于1,2,4-苯三酸与[2,3-f]吡嗪并[1,10]菲咯啉配体的钴髤及镉髤配合物的水热合成与晶体结构(英文)

利用水热技术,合成了2个新的配合物{[Co(Hbtc)(Pyphen)(H2O)].H2O}n(1)和{[Cd2(btc)(Pyphen)2Cl].2H2O}n(2)(H3btc=1,2,4-苯三酸,Pyphen=[2,3-f]吡嗪并[1,10]-菲咯啉),并通过X-射线单晶衍射、元素分析、热重分析和荧光进行了表征。配合物1属三斜晶系,空间群P1,a=0.643 44(13)nm,b=1.202 9(2)nm,c=1.371 6(3)nm,α=95.03(3)°,β=90.46(3)°,γ=103.54(3)°,V=1.027 7(4)nm3,Z=2,CoC23H16N4O8,Mr=535.31,Dc=1.730 g.cm-3,μ(Mo Kα)=0.900 mm-1,F(000)=546,GOOF=1.089,R=0.099 2,wR=0.249 0;配合物2属三斜晶系,空间群P1,a=0.968 93(8)nm,b=1.223 82(10)nm,c=1.592 21(14)nm,α=67.486 0(10)°,β=73.158 0(10)°,γ=78.468 0(10)°,V=1.660 9(2)nm3,Z...     

1,3-二(4-咪唑基)苯构筑的两个金属-有机框架化合物:合成、晶体结构和荧光性质（英文）

利用1,3-二(4-咪唑基)苯(L)和过渡金属盐反应,通过水热法方法合成了2个新颖的金属有机框架化合物:[Cd(L)(SO4)]n(1)和{[Ni(L)(SO4)]·H2O}n(2)。利用元素分析、红外、粉末衍射、热重分析等对MOFs进行了表征。通过X射线单晶衍射表明:1属于正交晶系,Pnma空间群,a=0.70728(5)nm,b=1.34381(9)nm,c=1.40731(9)nm,V=1.33758(16)nm^3,Dc=2.079 g·cm^-3,Z=4,F(000)=824,GOF=1.072,R1=0.0190,wR2=0.0506。2属于三斜晶系,P1空间群,a=0.98665(18)nm,b=1.1457(2)nm,c=1.3025(2)nm,α=65.029(3)°,β=83.497(3)°,γ=86.423(4)°,V=1.3260(4)nm^3,Dc=1.441 g·cm^-3,Z=2,F(000)=592,GOF=1.016,R1=0.0434,wR2=0.0771。2个MOFs均为二维的层状结构。此外,对MOFs的热稳定性和荧光性质也进行了研究。     

基于8-羟基喹啉衍生物镉配合物制备与晶体结构

以季铵盐配体L与Cd(NO_3)_2·4H_2O反应得到配合物[Cd(L)(NO_3)(H_2O)]·NO_3,并通过X射线衍射、红外光谱、质谱等表征了结构.单晶衍射结果表明中心原子Cd(Ⅱ)与去质子化的L~-的3个O原子和一个N原子,1个单齿配位的硝酸根,1个水的O原子和相邻配体2-吡啶N原子配位,形成一维链状结构.晶体属单斜晶系,Pn空间群,晶胞参数a=0.763 54(6)nm,b=0.912 15(7)nm,c=1.856 50(14)nm,α=90.00,β=91.524 0(10),γ=90.00,V=1.292 53(17)nm~3,Z=2,D_c=1.780 g/cm~3,μ=0.921 mm~(-1),F(000)=696,GOF on F~2=1.023,~aR_1[I2σ(I)],wR_2=0.037 7,0.090 6,R_1[all data],wR_2=0.043 7,0.094 4.     

Hydrothermal Synthesis and Crystal Structure of a Cadmium（Ⅱ） Polymer with One-dimensional Chain Structure： [Cd（MDPPz）（BDC）（H2O）]n

A metal-organic coordination compound formulated as [Cd(MDPPz)(BDC)(H2O)]n 1 (MDPPz=11-methyldipyrido[3,2-a:2',3'-c]phenazine,BDC=1,4-benzenedicarboxylate) has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectrum,fluorescence spectrum and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system,space group C2/c,with a=30.673(8),b=9.623(3),c=20.784(6) ,β=98.646(3)o,V=6065(3)3,C27H17CdN4O5,Mr=589.85,Dc=1.292 g/cm3,μ(MoKα)=0.757 mm-1,F(000)=2360,Z=8,the final R=0.0381 and wR=0.0855 for 4191 observed reflections (I>2σ(I)). 1 exhibits blue fluorescence property at room temperature.     

Synthesis and Characterization of Two Chiral Cadmium Coordination Compounds Constructed from (1S,1′S)-1,1′-(4-amino-4H-1,2,4-triazole-3,5-diyl)diethanol

Two chiral cadmium coordination compounds,(S)-[Cd(deoatrz)2 Cl2](1)and(S)[Cd(deoatrz)2 (NO3)2](2)(deoatrz=(1S,1 S)-1,1-(4-amino-4H-1,2,4-triazole-3,5-diyl)diethanol),are reported.Both 1 and 2 are mononuclear,crystallizing in tetragonal P41212 chiral space group with Z=2.For1,a=11.520(3),b=11.520(3),c=15.175(1),V=2013.6(1)3,Mr=527.7,Dc =1.741 g/cm 3,μ=1.386mm-1,F(000)=1064,the final GOF=1.05,R=0.0147 and wR=0.0433 for1932 observed reflections with I>2σ(I).For 2,a=12.201(3),b=12.201(3),c=15.027(4),V=2237.1(1)3,Mr=580.8,Dc=1.725 g/cm 3,μ=1.047mm-1,F(000)=1176,the final GOF=1.00,R=0.0201 and wR=0.0415 for 2408 observed reflections with I>2σ(I).Compounds 1 and 2 are connected into three-dimensional supramolecular networks through hydrogen bonding interactions.     

[Pb6(H2O)2(cit)4]·3H2O和Pb(tar)(H2O)2两种柔性酸和铅的配位聚合物的水热合成与表征

在水热条件下, 合成了2个含柔性配体柠檬酸和酒石酸的二价铅配位聚合物[Pb6(H2O)2(cit)4]·3H2O(1)(H3cit=citric acid)及Pb(tar)(H2O)2(2)(tar=tartaric acid). 用红外光谱、差热-热重、元素分析、粉末X射线衍射及单晶X射线衍射等手段对化合物进行了表征. 化合物1属三斜晶系, P1空间群, a=0.97053(19) nm, b=0.9764(2) nm, c=1.0955(2) nm, α=109.016(3)°, β=98.380(3)°, γ=92.136(3)°, V=0.9671(3) nm3, Z=2, R1=0.0420, wR2=0.1049, GOF=1.064. 在化合物1的不对称结构单元中, 有3个铅离子以及2个柠檬酸阴离子和2个游离的水分子. 铅离子分别以4, 5, 7配位与柠檬酸配合形成了中性的三维骨架结构. 化合物2属于正交晶系, Pbca空间群, a=1.39739(6) nm, b=0.64922(2) nm, c=1.80354(10) nm, V=1.63620(13) nm3, Z=8, R1=0.0283, wR2=0.0649, GOF=1.014. 在化合物2的不对称结构单元中, 有1个铅离子、1个酒石酸分子和1个水分子, 六配位的铅和酒石酸形成了一维外消旋的无限长链, 链与链之间通过氢键连接成一个三维超分子结构. 在化合物1和2中, 两种配体均出现了α羟基和α羧基螯合的配位模式, 铅的6s孤电子对均显示了立体化学活性, 使配位键分布于半球区域.     

hree Inorganic-organic Composite Polyoxotungstates:Syntheses, Characterization and Structures of [Cu(2,2'-bpy)2]5[α-PW11.5Cu0.5O40]·2H2O,[Co(2,2'-bpy)2(N3)2]4H3[α-PW12O40]·3H2O and [Cu(2,2'-bpy)2(4,4'-bpy)]2[α-GeW12O40]·4H2O

Three new inorganic-organic composite polyoxotungstates [Cu(2,2'- bpy)2]5[α- PW11.5Cu0.5O40]·2H2O 1, [Co(2,2'-bp3)2(N3)2]4H3[α-PW12O40]·3H2O 2 and [Cu(2,2'-bpy)2(4,4'- bpy)]2[α-GeW12O40].4H2O 3 (2,2'-bpy = 2,2'-bipyridine, 4,4'-bpy = 4,4'-bipyridine) have been hydrothermally synthesized and structurally characterized. 1 crystallizes in the orthorhombie space group Pna21 with α = 27.847(3), b = 21.597(2), c = 20.1179(19) A, V = 12099(2) A3, Z = 4, GOF= 1.038, R = 0.0427 and wR = 0.1035; 2 belongs to the triclinic space group P1 with a= 12.31150(10), b = 16.1954(4), c = 19.36290(10) A, α = 99.366(11), β=105.168(8),γ = 111.836(8)°, V = 3309.98(9) A3, Z = 1, GOF = 1.024, R = 0.0739 and wR = 0.2216; and 3 crystallizes in the monoclinic space group P21/n with a = 12.858(4), b = 20.943(6), c = 15.598(5) A, β = 102.338(5)°, V = 4103(2) A3, Z = 2, GOF = 1.026, R = 0.0557 and wR = 0.1316. The common structural features of 1～3 are that their molecular structures all consist of a saturated a-Keggin polyoxoanion and several discrete metal-organic moieties. Intriguingly, 2 and 3 are composed of metal-organic coordination moieties with two mixed ligands.     

含混合配体多酸超分子化合物的水热合成、晶体结构及催化活性

在水热条件下合成了四个含混合配体4,4’-bipy和2,2’-bipy/phen的多酸配位聚合物[Cu(4,4’-bipy)(2,2’-bipy)2]2[SiW12O40]?4H2O (1),[Ag4(4,4’-bipy)3(2,2’-bipy)2][SiW12O40]?2H2O (2),[Cu(4,4’-bipy)(phen)]2[H3O]2[SiW12O40]?8H2O (3)和[Cu(4,4’-bipy-Cl)(phen)]2[H3O][PW12O40]?H2O (4) (bipy = 联吡啶,phen = 邻菲罗啉),通过红外光谱、热重、元素分析、X-单晶衍射对聚合物进行了表征,在苯乙烯催化环氧化反应中,3和4显示了较高的催化活性,这与结构中存在配位不饱和金属中心有关.     

Hydrothermal Synthesis and Crystal Structure of a Cadmium(Ⅱ) Polymer with One-dimensional Chain Structure: [Cd(MDPPz)(BDC)(H2O)]n

A metal-organic coordination compound formulated as [Cd(MDPPz)(BDC)(H2O)]n 1 (MDPPz = 11-methyldipyrido[3,2-a:2',3'-c]phenazine, BDC = 1,4-benzenedicarboxylate) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, fluorescence spectrum and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group C2/c, with a = 30.673(8), b = 9.623(3), c = 20.784(6) (A), β = 98.646(3)o, V = 6065(3) (A)3, C27H17CdN4O5, Mr = 589.85, Dc = 1.292 g/cm3, μ(MoKα) = 0.757 mm(1, F(000) = 2360, Z = 8, the final R = 0.0381 and wR = 0.0855 for 4191 observed reflections (I＞2σ(I)). 1 exhibits blue fluorescence property at room temperature.     

Hydrothermal Synthesis and Crystal Structure of a Cadmium(Ⅱ) Polymer with One-dimensional Chain Structure: [Cd(bpy)(BDC)]n·nbpy

A metal-organic coordination polymer [Cd(bpy)(BDC)]n·nbpy (bpy = 2,2'-bipyri- dine, H2BDC = terephthalic acid) has been hydrothermally synthesized and structurally characteri- zed by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. The complex crystallizes in monoclinic, space group C2/c with a = 15.723(5), b = 21.695(5), c = 7.576(5)(A), β = 116.171(7)o, V = 2319.3(18)(A)3, C28H20CdN4O4, Mr = 588.88, Dc = 1.686 g/cm3, μ(MoKα) = 0.987 mm(1, F(000) = 1184, Z = 4, the final R = 0.0464 and wR = 0.0831 for 1882 observed reflections (Ⅰ ＞ 2σI)). It exhibits a three-dimensional network with channels constructed from one-dimensional coordination chains via C-H…O hydrogen bonds and significant aromatic π-π stacking interactions.     

一个镉配位聚合物[Cd(Pyphen)(1，4-BDC)(H2O)]·0.5Pyphen的合成、结构和荧光性质研究

The title complex, [Cd(Pyphen)(1,4-BDC)(H₂O)]·0.5Pyphen (1) (Pyphen=pyrazino[2,3-f][1,10]phenanthr-oline and 1,4-H₂BDc=1,4-benzenedicarboxylic acid) has been obtained by using hydrothermal synthesis and characterized by elemental analysis, IR, fluorescence spectrum and single-crystal X-ray diffraction. It crystallizes in orthorhombic, space group Pbcn with a=2.489 2(5) nm, b=0.967 88(19) nm, c=2.057 0(4) nm, V=4.955 9(17) nm³, Z=8, CdC₂₉H₁₈N₆O₄, M_r=642.89, D_c=1.723 g·cm^-3, F(000)=2 576, μ(Mo Kα)=0.937 mm^-1, R=0.039 6 and wR=0.102 6. The compound 1 exhibits one-dimensional chain structures, which are further stacked through π-π interactions to form supramolecular layers. Solid-state luminescent spectrum of the complex 1 indicates intense fluorescent emission. CCDC: 679004.     

三维金属有机骨架微孔晶体化合物Cd5(BTC)4(H2O)8·6H2O的合成与晶体结构

通过改变合成条件合成了最大宽度达到2.6 nm的特殊“Z”字形孔道的新型金属有机骨架微孔晶体化合物Cd5(BTC)4(H2O)8·6H2O, 并通过ICP、元素分析、热重(TGA)和X射线单晶衍射分析对其进行了表征.     

Hydrothermal Synthesis, Crystal Structure and Photoluminescent Property of a Metal-organic Coordination Polymer with Supramolecular Structure： [Cd2（dpphen）2（BDC）0.5Cl3]n

A novel metal-organic coordination polymer [Cd2(dpphen)2(BDC)0.5Cl3]n (dpphen = 4,7-diphenyl-1,10-phenanthroline, BDC = terephthalate) 1 has been obtained by using hydrothermal synthesis and characterized by elemental analysis, IR, fluorescence spectrum and single-crystal X-ray diffraction. The complex crystallizes in triclinic, space group P1 with a = 9.981(5), b = 10.436(5), c = 21.104(10) , α = 94.640(7), β = 103.160(7), γ = 92.958(8)o, V = 2127.8(17) 3, C52H34Cd2Cl3N4O2, Mr = 1077.98, Dc = 1.682 g/cm3, μ(MoKα) = 1.237 mm-1, F(000) = 1074, Z = 2, the final R = 0.0314 and wR = 0.0757 for 7358 observed reflections (I > 2σ(I)). Furthermore, compound 1 shows blue photoluminescent property at room temperature.     

六次甲基四胺－二羧酸银(Ⅰ)的三维非穿插网状聚合配合物的 合成与结构

报道了四齿配位的六次甲基四胺(hmt)与Ag(Ⅰ)形成的三维非穿插网状结构配合物[Ag2(μ4-hmt)(μ3-oga)]·3H2O(1)和[Ag2(μ4-hmt)(μ3-mpa)]·3H2O(2)(oga=2,2'-氧合二乙酸根,mpa=1,3-苯二甲酸根)的合成与结构,标题配合物都是具有六边形框架的蜂窝状三维非穿插网状结构,而包含在其中的二羧酸根均以单齿-双齿的配位形式出现,配合物1(C10H22Ag2N4O8)属单斜晶系,空间群P21/c,a=0.6366(3)nm,b=1.1736(7)nm,c=2.1998(12)nm,β=97.60(6)°,V=1.629(2)nm^3,Z=4,R1=0.0491,ωR2=0.1231。配合物2(C14H22Ag2N4O7)属单斜晶系,空间群P21/c,a=1.2944(4)nm,b=1.1998(7)nm,c=2.3491(14)nm,β=95.49(4)°,V=3.631(3)nm^3,Z=8,R1=0.0664,ωR2=0.1526.