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1.
YANG Ying-Qun LI Chang-Hong LI Wei KUANG Yun-Fei 《结构化学》2007,26(9):1076-1080
A one-dimensional chain-like coordination polymer [Mn(phen)(2,4,6-TMBA)2(H2O)]n has been synthesized from 2,4,6-trimethylbenzoic acid, 1,10-phenanthroline and anhydrous manga- nese(Ⅱ ) sulfate and then characterized. Crystal data for this complex: tetragonal, space group I41, a = 2.05643(16), b = 2.05643(16), c = 1.3939(2) nm, V = 5.8946(11) nm3, Mr = 579.54, Z = 8, Dc = 1.306 g/cm3, μ(MoKα) = 0.490 mm-1, F(000) = 2424, S = 0.985, the final R = 0.0411 and wR = 0.0950. The Flack factor is -0.01(2). The crystal structure shows that two neighboring man- ganese(Ⅱ ) ions are linked together by one bridge-chelating 2,4,6-trimethylbenzoic group, forming a one-dimensional chain structure. The manganese(Ⅱ ) ion is coordinated with two nitrogen atoms of one 1,10-phenanthroline, three oxygen atoms from three 2,4,6-trimethylbenzoic acids and one water oxygen atom, giving a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex was also investigated. 相似文献
2.
Two new europium (Ⅲ) coordination polymers formulated as Eu2(H2O)2(ox)4 ]· (C5H6N)2 ·2H 2 O(1) and Eu 2(ad)3(H2O)4 ]·0.25H2O (2) (H2ox = oxalic acid, H2ad = adipic acid) have been synthesized from the self-assembly of lanthanide ions Eu 3+ with flexible oxalic and adipic acid ligands, respectively. Structural analyses revealed that complex 1 exhibits three-dimensional metalorganic frameworks, and 2 has intricate two-dimensional interpenetrated metal-organic networks. In addition, the photoluminescent properties of complexes 1 and 2 were discussed in detail, which shows strong red emission, corresponding to 5 D0 → 7 F 2 transition of Eu3+ ions. 相似文献
3.
CMAO Jiang-Gao 《结构化学》1998,(5)
1INTR0DUCTI0NLanthanidecarboxylatecomplexeshavebeenwidelystudiedt1iandm0starefoundtoexhibitavarietyofdimericorinfinitechainstructures.Recentstudiesinourlaboratoryhavedem0nstratedthattheprototypetertiaryaminebetaine(Me,N CHzC0z-)anditsderivativesareusefulinthegenerationoflanthanidecarb0xylate-likecomplexeswithnewstructuralfeaturesduetotheiroverallchargeneutralityandpossibleinclusionofvariouskindsofcounteranionsinthestructuret2~4i.Thelan-thanidecomplexesisolatedsofarhavebeenfoundtobemononu… 相似文献
4.
The self-assembly of 5-bromoisophthalic acid (H2BIPA) with Tb(NO3)3·6H2O under hydrothermal conditions gives rise to a 3D coordination polymer, [Tb2(BIPA)3(CH3CH2OH)]n (1), which was characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal is of monoclinic system, space group P21/c with a = 19.2591(17), b = 8.2537(7), c = 18.5663(17), β = 104.4720(10)°, V = 2857.6(4)3, C26H15Br3O13Tb2, Mr = 1092.95, Dc = 2.540 g/cm3, F(000) = 2040, μ = 9.173 mm-1 and Z = 4. The final R = 0.0324 and wR = 0.0767 for 5299 observed reflections (I > 2σ(I)). Complex 1 displays an unusual three-dimensional (4,6)-connected network with (48.66.8)2(44.62)2(42.84) topology, which is different from [Tb(HBDC)(BDC)(H2O)4]·3.3H2O (BDC = isophthalate) because the -Br substituent of isophthalate results in different electronic effect and steric hindrance to change the coordination modes of carboxylate groups in the assembly process. Moreover, luminescent properties of 1 have also been investigated in the solid state. 相似文献
5.
GAO En-Jun GU Xiao-Fu SUN Ya-Guang YIN Hong-Xi WU Qiong LIU Lei ZHU Ming-Chang ZHANG Wan-Zhong 《中国化学》2008,26(11):2133-2136
A novel coordination polymer, [Mn(PDC)H2O]n (1) (H2PDC=pyridine-2,3-dicarboxylic acid), has been hydrothermally synthesized and characterized by elemental analysis, IR and single crystal X-ray diffraction. X-ray single crystal structural analyses revealed that two-dimensional frameworks were formed, and further assembled into a three-dimensional supramolecular structure bridged by PDC ligands. Moreover, the magnetic study of complex 1 shows weak antiferromagnetic interaction between the neighboring Mn(II) centers within the chains and even weak ferromagnetic interactions between the Mn(II) centers in different chains. 相似文献
6.
One novel complex Mn2(phen)2(p-CBA)4(H2O) has been hydrothermally syn- thesized from p-chlorobenzoic acid (p-CBA), 1,10-phenanthroline (phen) and anhydrous man- ganese(Ⅱ) sulfate and then characterized. Crystal data for this complex: monoclinic, space group C2/c, with a = 2.3416(3), b = 1.5604(2), c =1.5605(2) nm, β = 121.048(2)o, V = 4.8849(12) nm3, Dc = 1.510 g/cm3, Mr = 555.26, Z = 8, μ = 0.798 mm-1, F(000) = 2256, GOOF = 1.032, the final R = 0.0393 and wR = 0.0816. The crystal structure shows that two neighboring manganese(Ⅱ ) ions are linked together by two bridge-chelating p-chlorobenzoic groups and one bridging water molecule, forming a cage structure with the Mn–Mn bond distance of 0.3512 nm. Each manganese(Ⅱ ) ion is coordinated by two nitrogen atoms of one 1,10-phenanthroline molecule and four oxygen atoms from three p-chlorobenzoic acid anions and one water molecule, giving a distorted octahedral coordination geometry. The cyclic voltammetric behavior of the complex was also investigated. 相似文献
7.
A new cadmium(Ⅱ) coordination polymer,namely,[KCd2(edta)I]n(1,H4edta = ethylenediaminetetraacetic acid),has been prepared and structurally characterized by single-crystal X-ray diffraction.Crystallographic data for 1:C10H12Cd2IKN2O8,Mr = 679.02,monoclinic,space group P21/n,a = 9.870(5),b = 8.989(4),c = 19.082(10) ,β = 104.581(10)o,V = 1638.5(13) 3,Z = 4,Dc = 2.753 g/cm3,μ = 4.776 mm-1,F(000) = 1272,the final R = 0.0473 and wR = 0.1311 for 2846 observed reflections with I > 2σ(I).Polymer 1 features a 2-D layered structure,in which each edta4-ligand chelates/bridges five adjacent six-/seven-coordinated Cd(Ⅱ) centers with all ten donors(eight oxygen and two nitrogen) involved with coordination.Additional iodide I-ions as counterions are bound to the Cd(Ⅱ) centers in a terminal mode and the potassium K+ ions are located in the layers and surrounded by O and I atoms from neighboring environment.The thermal stability of 1 has been discussed. 相似文献
8.
1 INTRODUCTION The metal-organic coordination polymers have proved to be promising in developing new mate- rials[1]. It is crucial to select or synthesize the suita- ble bridging organic ligand. Some simple rigid li- gands are skillfully employed[2~4].… 相似文献
9.
A new Cd(Ⅱ) coordination polymer, namely, [Cd(1,3-bip)(3,5-pdc)]n(1,3-bip =1,3-bis(imidazol)propane and 3,5-pdc = pyridine-3,5-dicarboxylic acid) has been synthesized under hydrothermal conditions. Compound 1 was characterized by infrared spectrum, elemental analysis,powder X-ray diffraction(PXRD) and single-crystal X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 1.40178(7), b = 1.72502(12), c = 1.41635(6) nm, β =92.653(4)o, V = 3.4212(3) nm3, Z = 4, C316H15 Cd N5O4, Mr = 453.73, Dc = 1.762 g/cm, F(000) =1808, μ = 1.310 mm-1, R = 0.0899 and w R = 0.1945. In compound 1, each 3,5-pdc ligand links three Cd(Ⅱ) ions and each Cd(Ⅱ) attaches to bip ligands to form a complicated 2D double-layer structure. In addition, the thermal stability and luminescent property of 1 have been studied in the solid state at room temperature. 相似文献
10.
The two title complexes,[Cd{3,5-(NO2)2sal}(2,2′-bipy)]n 1 and [Mn{3,5-(NO2)2sal}(2,2′-bipy)]n 2 (3,5-(NO2)2sal=3,5-dinitrosalicylate,2,2′-bipy=2,2′-bipyridine),were synthesized by the hydrothermal reaction and structurally characterized. Complex 1 crystallizes in triclinic,space group P1,a=5.581(4),b=12.071(8),c=12.88(1),α=92.10(3),β=96.73(3),γ =102.02(2)°,C17H10N4O7Cd,Mr=494.69,V=841(1)3,Z=2,Dc=1.954 g/cm3,F(000)=488,μ =1.353 mm-1,R=0.0248 and wR=0.0761. Complex 2 crystallizes in monoclinic with space group P21/c,a=8.604(3),b=23.88(1),c=8.894(3),β=102.45(1)°,C17H10N4O7Mn,Mr=437.23,V= 1785(1) 3,Z=4,Dc=1.627 g/cm3,F(000)=884,μ=0.791 mm-1,R=0.0471 and wR=0.1250. Complex 1 possesses an infinite 1D polymeric chain structure consisting of the repeated basic four-membered ring units (Cd2O2) and eight-membered ring units (CdOCO)2. Compound 2 displays a linear 1D chain through Mn(Ⅱ) atoms and bridging carboxylate groups of 3,5-dinitrosalicylic acid ligands with the Mn…Mn separation of 4.472(2). The fluorescence properties and cyclic voltammetric behaviors of the complexes are also reported. 相似文献
11.
PreparationandCrystalStructureofBis(2-thenoyltrifluoroacetone)Copper(Ⅱ)WangDong-Mei;YangRui-Na;HuYi-Min;JinDou-Man(HenanInsti... 相似文献
12.
A new aromatic carboxylate ligand,namely 5-(pyrrolidin-1-yl)-1,3-benzenedicar-boxylic acid(H2pybdc),was synthesized and characterized by FT-IR and single-crystal X-ray diffraction analysis.It crystallizes in triclinic system,P1 space group with a = 10.05(5) ,b = 11.53(5),c = 12.92(6) ,α = 112.11(6)°,β = 92.79(7)°,γ = 102.98(7)°,V = 1337.113,Z = 4,Mr = 253.25,Dc = 1.258 g.cm-3,μ = 0.099 mm-1,F(000) = 536,the final R = 0.0822 and wR = 0.2575 for 1893 observed reflections(I >2σ(I)).Based on it,a two-dimensional grid-type Zn(Ⅱ) coordina-tion polymer of {[Zn(pybdc)(bpy)(H2O)].2H2O.0.5CH3OH}n(1) was solvothermally synthesized,which crystallizes in triclinic,space group P1 with a = 10.218(5) ?,b = 11.176(5) ,c =11.350(5) ,α = 95.855(5)°,β = 94.248(5)°,γ = 101.421(5)°,V = 1257.9(2) 3,Z = 2,Mr = 524.84,Dc = 1.386 g.cm-3,μ = 1.024 mm-1,F(000) = 546,the final R = 0.0635 and wR = 0.1879 for 3913 observed reflections(I >2σ(I)). 相似文献
13.
Two isostructural helical coordination polymers, {[Cu(dps)2(Hssa)-(H2O)2]·3H2O}n (1) and {[Mn(dps)2(Hssa)(H2O)2]·2H2O}n (2), have been synthesized by the solvothermal reaction of dps and H3ssa with CuCl2 or Mn(CH3COO)2 (dps = 4,4'-dipyridylsulfide, H3ssa = 5-sulfosalicylic acid). Both compounds crystallize in monoclinic, space group P21/n. In either complex, the central metal ion (CuII for compound 1 and MnII for compound 2) is surrounded by one Hssa2ˉ ligand, two coordinated aquas and three dps molecules with a N3O3 donor set in a distorted octahedral coordination geometry. Half of the dps is monodentate and another half acts as μ2-bridging ligands. It is through the bridging function of dps that the neighbouring metal centers are connected and a one-dimensional helical structure of compound 1 or 2 forms. Fluorescence studies indicate that compounds 1 and 2 have blue emission bands centered at 403 and 405 nm, respectively. 相似文献
14.
One-dimensional chain copper(Ⅱ) coordination polymer has been synthesized and characterized in the solvent mixture of water and alcohol with o-acetamidobenzoic acid,4,4'-bipyridine and copper perchlorate.It is of tetragonal,space group P41212 with a=1.57756(10),b= 1.57756(10),c=2.1438(3)nm,V=5.3352(8) nm3,Dc=1.524 g/cm3,Z=4,F(000)=2536,R= 0.0479 and wR=0.0979.The crystal structure shows two coordination modes.The copper(1) is coordinated with two nitrogen atoms of one 4,4'-bipyridine molecule and two oxygen atoms from two o-acetamidobenzoic acid molecules,forming a distorted tetrahedral coordination geometry;the copper(2) is coordinated with two nitrogen atoms of one 4,4'-bipyridine molecule,four oxygen atoms from two o-acetamidobenzoic acid molecules and two water molecules,generating a distorted octahedral coordination geometry.The result of TG analysis shows that the title complex is stable below 180.0 ℃. 相似文献
15.
LIU Chun-Bo CHEN Jing BAI Hong-Ye WANG Shen-Tang WANG Qing-Wei CHE Guang-Bo 《结构化学》2012,31(8):1182-1186
In the title coordination compound,[Cu(HDPPZC)(SO4)(H2O)]2 (1,HDPPZC=dipyrido[3,2-a:2,3-c]-phenazine-2-carboxylic acid),has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction,elemental analysis and magnetic susceptibility measurement.It crystallizes in triclinic,space group P1 with a=0.69485(6),b=0.76878(4),c=1.76638(13)nm,α=99.437(6),β=94.690(6),γ=95.735(6)o,V=0.92151(12) nm 3,Z=1,Cu2C38 H24 N 8S2O14,Mr=1007.85,Dc= 1.816 g·cm-3,F(000)=510,GOOF=0.988,the final R=0.0580 and wR=0.0689.The structural analyses reveal that complex 1 shows discrete dinuclear clusters,which are further linked by hydrogen bonding and π·π stacking interactions to form a three-dimensional supramolecular compound.Magnetic measurement shows ferromagnetic and antiferromagnetic exchange interactions in the sample. 相似文献
16.
A new metal-organic coordination polymer [Zn1.5(PDB)(bix)0.5(μ2-OH)]2n 1 (H2PDB = pyridine-3,4-dicarboxylic acid, bix = 1,4-bis(imidazol-1-ylmethyl)-benzene) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group P2/c with a = 7.411(2), b = 7.848(3), c = 25.048(8), V = 1451.8(8)3, C28H22N6O10Zn3, Mr = 798.63, Dc = 1.827 g/cm3, μ(MoKα) = 2.529 mm-1, F(000) = 804, Z = 2, the final R = 0.0440 and wR = 0.1035 for 1952 observed reflections (I > 2σ(I)). It exhibits a three-dimensional framework structure. Moreover, its luminescent property has been investigated in the solid state. 相似文献
17.
Two new 1-naphthoate-based Pb(Ⅱ) complexes, [Pb(phen)(NA)2]n 1 and [Pb(bpp)(NA)2]n 2 (NA = 1-naphthoate, phen = 1,10-phenanthroline, and bpp = 1,3-bi(4-pyri- dyl)propane), were hydrothermally synthesized and structurally characterized. 1 is of monoclinic system, space group C2/c with a = 28.114(3), b = 10.9601(10), c = 8.6843(8) , β = 93.3760(10)°, V = 2671.3(4) 3, Dc = 1.814 g/cm3, Mr = 729.73, Z = 4, F(000) = 1416, μ = 6.360 mm-1, the final R = 0.0346 and wR = 0.0948 for 2184 observed reflections with I > 2σ(I). Complex 2 crystallizes in monoclinic, space group C2/c with a = 26.491(2), b = 8.7773(6), c = 27.893(2) , β = 113.3020(10)°, V = 5956.8(8)3, Dc = 1.668 g/cm3, Mr = 747.78, Z = 8, F(000) = 2928, μ = 5.706 mm-1, the final R = 0.0211 and wR = 0.0493 for 3677 observed reflections with I > 2σ(I). Both complexes present one-dimensional (1-D) zigzag chains extended by anionic NA linkers for 1 and bridged by neutral bpp connectors for 2, which are further aggregated into 2-D supramolecular networks by interchain π···π stacking interactions. In addition, the two solid-state complexes exhibit different strong emissions at room temperature, suggesting their potential applications as fluorescence materials. 相似文献
18.
1 INTRODUCTION A variety of transition metal complexes with barbiturates have been prepared owing to their important roles in clinical detection and identi- fication of drug[1~5]. They have the general formula of M(Ⅱ)(barb)2L2, where M is a transition metal (Co, Cr, Zn, Cu etc), barb the anion of a substituted barbituratic acid and L an organic base, usually pyridine. In these complexes, the donor atom in the barbiturate anion is a deprotonated nitrogen atom and, the coordination … 相似文献
19.
Two new isomorphous metal-organic coordination polymers, [Zn(dhmdb)(2,2'- bpy)]n 1 and [Zn(dhmdb)(1,10-phen)]n 2, have been obtained under hydrothermal reactions from 4,4'-(dihydroxymethylene)dibenzoic acid (H2dhmdb), Zn(NO3)2·6H2O and 2,2'-pyridine or 1,10- phenanthroline, respectively. Compounds 1 and 2 have been characterized by FT-IR spectroscopy, thermal analysis and single-crystal X-ray diffraction. The zigzag chains of 1 and 2 are linked into three-dimensional supramolecular networks by both O-H…O hydrogen bonds and π…π stacking interactions. Crystal data for 1: ZnC25H18N2O6, Mr = 507.78, orthorhombic, space group Pbca, a = 14.031(3), b = 10.826(2), c = 27.343(6), V = 4153.5(14)3, Z = 8, Dc = 1.624 g/cm3, F(000) = 2080, μ = 1.231 mm-1, R = 0.0699 and wR = 0.1829. Crystal data for 2: ZnC27H18N2O6, Mr = 531.80, orthorhombic, space group Pbca, a = 13.796(3), b = 10.809(2), c = 28.612(6), V = 4266.8(15)3, Z = 8, Dc = 1.656 g/cm3, F(000) = 2176, μ = 1.203 mm-1, R = 0.0454 and wR = 0.1399. 相似文献
20.
1 INTRODUCTION The polymeric metal complexes with extended structures are of great interest because of their useful chemical or physical properties[1]. Due to the noticeable fact that the aromatic polycarboxylate can provide versatile coordination mode and the non-coplanar structure of the carboxylate groups and the benzene rings, a lot of efforts in this field have been particularly directed to the preparation of aromatic polycarboxylate (such as phthalate, tere- phthalate and isophthal… 相似文献