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1.
Three coordination polymers, namely, {[Zn(L)(BPY)]·DMF·H2O}n (1), {[Zn(L)(TPY)]·0.5H2BDC·H2O}n (2), {[Cd(L)(H2O)2]·DMF}n (3), have been synthesized based on a rigid linear carboxylate ligand (H2L = 2′,5′-dimethoxy-[1,1′:4′,1″-terphenyl]-4,4″-dicarboxylic acid) and different lengths of pyridine ligands (TPY = 4,3′:5′,4″-terpyridine; BPY = 4,4′-bipyridine). These complexes have been characterized by single crystal X-ray diffraction, infrared spectroscopy, thermogravimetry, elemental analysis, and powder X-ray diffraction measurements. Complex 1 is a 6-connected 3-fold interpenetrating pcu net with point symbol {412 ∙ 63}, 2 and 3 can be simplified as 4-connected sql nets with point symbol {44 ∙ 62}. In addition, their photoluminescent properties are also investigated in detail. 相似文献
2.
《Inorganic chemistry communications》2007,10(7):767-771
Two novel metal coordination polymers, [Zn(nic)(isonic)]n (1) and [Cu(nic)(isonic)]n (2) (H2nic = nicotinic acid, H2isonic = isonicotinic acid), have been hydrothermally synthesized and characterized by elemental analysis, IR, and single crystal X-ray diffraction. X-ray single-crystal structural analyses reveal that 1 and 2 are isomorphous, two-dimensional interpenetrating (4, 4) frameworks bridged by nic and isonic ligands, and further assembled into a three-dimensional supramolecular structure via π–π stacking interaction. Moreover, 1 displayed photoluminescent properties in the blue range at room temperature. 相似文献
3.
An ether bridged tetracarboxylic acid ligand, 5-(3′,4′-Dicarboxylphenoxy)-isophthalic acid (H4L) was used to construct two Co(II) coordination polymers in presence of different nitrogen donor ligands such as 4,4′-bipyridine (4,4′-bpy) and 4,4′-bis(pyrid-4-yl)biphenyl (bpbp). The products formed under hydrothermal conditions are formulated as [Co2L(4,4′-bpy)2(H2O)3]n (1) and {[Co(bpbp)2(H2L)]·H2O}n (2). The compounds were characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis, and powder X-ray diffraction (PXRD) measurement. Compound 1 shows an intriguing (3,4,5)-connected 3D framework with a point symbol of (42 · 62 · 82)(42 · 65 · 83)(62 · 8). Compound 2 is an unusual 3D supramolecular framework generated by the one-dimensional [Co(bpbp)(H2L)]n polymer chain. The magnetic properties of compounds 1 and 2 were examined, indicating antiferromagnetic interactions between the cobalt(II) ions in the temperature range of 2–300 K. 相似文献
4.
A lead(II) orotate complex [Pb(HOr)(H2O)]n (1), (H3Or = orotic acid) was synthesized under hydrothermal condition and characterized by X-ray diffraction, IR, solid-state photoluminescence and thermogravimetric analysis. Lead atom in 1 is in a holodirected eight-coordinated polyhedron and the orotate ligand exhibits a new and unique hexametallic coordination mode. The lead complex shows a 6,6-connected (48, 66, 8)(413, 62) topology. The complex exhibits photoluminescence at 546 nm (λex = 350 nm). 相似文献
5.
A thermally stable dysprosium porphyrin with a three-dimensional (3D) porous open framework, [Dy(H2TPPS)]n∙ nH3O∙2nH2O (1) (H2TPPS = tetra(4-sulfonatophenyl)porphyrin), has been synthesized via hydrothermal reactions and structurally analyzed by an X-ray single-crystal diffraction method. The 24-membered macrocyclic ring of H2TPPS is exactly coplanar and the center is free from metal. The dysprosium ion is coordinated by eight Osulfonic atoms from eight H2TPPS moieties, forming a distorted square anti-prism geometry. Complex 1 shows a void space of 210 Å3, occupying 9.06% of the unit-cell volume. The 3D porous open framework of 1 is thermally stable up to 380 °C. Complex 1 exhibits a red fluorescence emission with a quantum yield and lifetime of 2.7% and 136 μs, respectively. CV result reveals one reductive peak at − 0.33 V and one quasi-reversible wave with E1/2 = − 0.81 V. 相似文献
6.
Hydrothermal reaction of Cu(NO3)2·3H2O with BIBP and H2hfipbb at 105 °C yielded a novel 3D Cu(II) coordination polymer, {[Cu2(BIBP)0.5(hfipbb)2(CH3CN)]·5H2O}n (1) [BIBP = 5,5′-bis(1H-imidazol-1-yl)-2,2′-bithiophene, H2hfipbb = 4,4′-(hexafluoroisopropylidene)bis(benzoic acid)]. Compound 1 displays a 3D 2-fold interpenetrating framework with {44.66} sqp topology, containing interesting ⋯LRLR⋯ double helical chains. The compound 1 was characterized by IR spectra, elemental analysis, thermal analysis and single crystal X-ray diffraction. In addition, solid-state UV–vis spectra experiment shows that compound 1 exhibits semiconductive property with a band gap of 2.46 eV. 相似文献
7.
Man-Sheng Chen Zheng-Shuai Bai Zhi Su Shui-Sheng Chen Wei-Yin Sun 《Inorganic chemistry communications》2009,12(6):530-533
A new three-dimensional nickel(II) metal-organic framework [Ni(INAIP)(H2O)2]n · nH2O (1) [H2INAIP = 5-(isonicotinamido)isophthalic acid] was synthesized under hydrothermal conditions, and characterized by single-crystal X-ray structure determination, thermogravimetric analysis, X-ray powder diffraction, IR and magnetic studies. The compound 1 has (10, 3)-b topology with not well known fourfold interpenetration, in which both Ni(II) atoms and INAIP2? ligands act as three-connected nodes. 相似文献
8.
Reactions of Zn(II) salts, presynthesized 5-(4-(1H-imidazol-1-yl)phenyl)-1H-tetrazolate (HIPT) and various carboxylate ligands result to three new coordination polymers (CPs), namely, [Zn2[(IPT)2(ox)]}n (H2ox = oxalic acid, 1), [Zn2(IPT)2(mNBDC)]n (H2mNBDC = 5-nitroisophthalic acid, 2), and [Zn2(IPT)(CA)(H2O)]n (H3CA = citric acid, 3). Compound 1 can be seen as constructed from 2D [Zn(IPT)]n layers with (6,3) topology and pillared by ox2 −. It is a 3D (3,4)-connected framework with InS topology. Compound 2 has 2D bilayer structure based on 2D [Zn(IPT)]n single layer and mNBDC2 − linkers. Compound 3 is a 3D pillar-layer framework built by Zn–CA bilayers and IPT− pillars. The results showed that the coordination modes, configurations of IPT−, and the structure of carboxylate co-ligands have great influence on the structures of the final network. The choice of carboxylate can decide the result of CPs in Zn–IPT chains/net subunits plus carboxyl linkers or Zn–carboxylate chains/net subunits plus IPT− linkers. The thermal stabilities and luminescent properties of selected compounds have also been studied. 相似文献
9.
A novel Keggin-type molybdophosphate-based hybrid containing left- and right-handed helical chains, {Ag[H2(3-bptzh)](PMo12O40)}·H2O (1) [3-bptzh = 1,6-bis(5-(3-pyridyl)-tetrazolyl)hexane], has been synthesized under hydrothermal condition, and characterized by IR spectra, elemental analyses, single crystal X-ray diffraction and powder X-ray diffraction. The helix metal-organic chain [AgH2(3-bptzh)]n3 + is constructed from the flexible 3-bptzh ligands and Ag atoms, on which [PMo12O40]3 − polyoxoanions are hanged via AgO bonds. The structural feature is fascinating and scarcely reported in POM-based complexes. The electrochemical, fluorescent and photocatalytic properties of the title compounds have been investigated. Additionally, the polypyrrole (PPy) composite material of 1 (PPy/1) has been prepared by loading polypyrrole on the surface of compound 1, which shows excellent photocatalytic activities for degradation of organic dyes under visible light irradiation. 相似文献
10.
Qing-Ran Wu Ji-Jiang Wang Huai-Ming Hu Bao-Cheng Wang Xing-Long Wu Feng Fu Dong-Sheng Li Meng-Lin Yang Gang-Lin Xue 《Inorganic chemistry communications》2010,13(6):715-719
Two novel cadmium(II) coordination polymers [Cd(cptpy)2]n·nH2O (1) with a 1D double chain structure and [Cd2(cptpy)2(ox)]n·2.5nH2O (2) with an interesting 3-connected uninodal six-fold interpenetrating ths network (Hcptpy = 4′-(4-carboxyphenyl)-2,2′:6′,2″-terpyridine, H2ox = oxalic acid) have been synthesized under hydrothermal conditions and characterized by elemental analysis, IR, single crystal X-ray diffraction and fluorescence spectra. 相似文献
11.
Three new coordination compounds, {[Zn(btrp)(ip)]?2H2O}n (1), {[Zn(btrp)(hip)]?2H2O}n (2), and {[Zn1.5(btrp)(btc)(H2O)]?H2O}n (3) (btrp = 1,3-bis(1,2,4-triazol-1-yl)propane, H2ip = isophthalate, H2hip = 5-hydroxy isophthalate, H3btc = benzene-1,3,5-tricarboxylic acid) have been prepared via solvothermal method and characterized by single crystal X-ray diffraction and elemental analysis. 1 possesses 2D (4. 4) net framewok. 2 is also a 2D infinite layer framework, and the resulting 2D structure is interconnected by hydrogen-bond and π…π interactions to lead to a 3D supramolecular architecture. 3 exhibits a novel 2D framework with three nonequivalent points, {5.62}{52.6}{54.82}. The fluorescence properties of 1–3 have been studied at room temperature. 相似文献
12.
Three new coordination polymers, namely, {[Cu2(IPT)(SO4)(OH)(H2O)]·H2O}n (HIPT = 5-(4-(1H-imidazol-1-yl)phenyl)- 1H-tetrazolate, 1), {[Cd2(IPT)(NPA)(OH)]·H2O}n (H2NPA = 5-nitroisophthalic acid, 2), and {[Zn2(IPT)(IDC)(H2O)]·3H2O}n (H3IDC = 1H-imidazole-4,5-dicarboxylic acid, 3), were assembled from a bifunctional organic ligand containing both tetrazole and imidazole groups with/without the aid of carboxylate coligands. Compound 1 possesses 2D structure built by 1D [Cu2(IPT)(SO4)(OH)]n secondary building blocks and IPT− linkers. The 2D networks are linked into 3D supramolecular framework via water chains in helical conformation. Compound 2 displays 3D pillar-layer framework with 2D layers based on tetranuclear Cd(II) SBUs and NPA2 − pillars. Compound 3 exhibits a 3D framework constructed from the interconnection of 1D [Zn-IDC]n chains and binuclear Zn2(IPT)2 rings. The thermal stabilities of porous compound 3 and luminescent properties of compounds 2 and 3 have also been studied in detail. They exhibit intense solid-state fluorescent emissions at room temperature. 相似文献
13.
《Inorganic chemistry communications》2007,10(4):451-454
A zinc metal–organic framework [Zn(tfpbbp)(Ac)2]n (1) has been prepared by reacting N, N′-[(2,3,5,6-tetrafluoro-1,4-phenylene)bis(methylene)]bis(pyridine-4-carboxamide) (tfpbbp) with Zn(Ac)2 · 2H2O and characterized by single crystal X-ray diffraction and TGA analysis. Single crystal X-ray diffraction analysis indicates that in solid-state (1) is a 1-D zigzag chain, which further self-assembles into a 3-D supramolecular porous structure through hydrogen bonding interactions. The polymer (1) exhibits photoluminescent property at room temperature. 相似文献
14.
Self-assembly of CoSO4 salt and 2-(p-isopropylphenyl)-1H-imidazole-4,5-dicarboxylic acid (H3PPhIDC), results in the formation of a metal-organic framework, [Co(HPPhIDC)(CH3OH)]n (1), which has been characterized by elemental analysis, IR, X-ray powder diffraction (XRPD), thermogravimetric analysis and single-crystal X-ray diffraction. Polymer 1 is a meso-compound and displays a (3,3)-connected 3D structure with 1D channels and cages, which are composed of left- and right-handed helices pillared by Co2 + linkers. Moreover, the antiferromagnetic coupling between the neighboring Co(II) ions in 1 can be observed. 相似文献
15.
《Inorganic chemistry communications》2007,10(9):997-1000
Reaction of manganese(II) polymer [Mn5Cl(OH)(Piv)8(MeCN)(HPiv)(H2O)]n (1, HPiv is pivalic acid) and 2-benzoylpyridine (L) in MeCN produces the ionic complex [Mn3(Piv)5L2(MeCN)]+[Mn6Cl(Piv)12]− · MeCN (3) containing the unusual hexanuclear {Mn6(μ6-Cl)} anion. An analogous anion was also observed in the complex [Mn6Cl(Piv)12]−(NEt4)+ · 5MeCN (4) prepared by the reaction of the polymer [Mn(Piv)2(EtOH)]n (2) with NEt4Cl in MeCN. Complexes 3 and 4 were characterized by the X-ray diffraction and magnetic susceptibility. 相似文献
16.
Matthew R. Montney Justin G. Thomas Ronald M. Supkowski Ryan J. Trovitch Jon Zubieta Robert L. LaDuca 《Inorganic chemistry communications》2009,12(6):534-539
Hydrothermal reaction of CuCl2, MoO3, and 4,4′-dipyridylketone (4,4′-dpk) afforded green crystals of the mixed metal oxide phase {[Cu2(MoO4)2(4,4′-dpk)(H2O)]·H2O}n (1). According to single-crystal X-ray diffraction, {Cu2O2} dimers link into 1-D {Cu2O2(μ-H2O)}n chains via bridging aqua ligands. These chains form [Cu2(MoO4)2(H2O)]n slabs via linkage through tetrahedral molybdate anions. In turn, the copper molybdate slabs are pillared through tethering 4,4′-dpk ligands into a 10-connected three-dimensional lattice with an unprecedented 312430526 topology. Variable temperature magnetic data above 140 K were fit to the Curie–Weiss law, with C = 0.17 cm3 K/mol Cu and Θ = 70 K, indicating likely ferromagnetic coupling within the dinuclear kernels of 1; low temperature data points towards the possibility of interdimer antiferromagnetic interactions. 相似文献
17.
Na Li Mei Wang Cheng-Bing Ma Ming-Qiang Hu Rong-Wei Zhou Hui Chen Chang-Neng Chen 《Inorganic chemistry communications》2010,13(6):730-732
A new tri-metallic Mn/Ca/Na coordination polymer, {[Mn3NaCa(sal)6(H2O)6]·7H2O}n (1·7H2O), has been synthesized and characterized by single crystal X-ray diffraction, IR spectroscopy, and magnetic measurements. The X-ray analysis shows 1 consists of a 2D homochiral (6,3) network with chiral [Mn3Na] clusters and chiral Ca ions as alternating nodes. Magnetic property study reveals the existence of weak antiferromagnetic couplings between Mn(III) ions with the interaction parameter J being ? 0.438 cm? 1 within the complex. 相似文献
18.
《Inorganic chemistry communications》2007,10(2):178-182
[Tl2(μ-Htdp)2(μ-H2O)]n (H2tdp = 4,4′-thiodiphenol) (1), a new rarely reported TlI one-dimensional coordination polymer with a large tetranuclear metallacycle, has been synthesized, characterized by elemental analysis and IR spectroscopy and its structure determined by single-crystal X-ray diffraction. The thermal stability of compound 1 was studied by thermal gravimetric (TG) and differential thermal analyses (DTA). The single crystal X-ray analysis of compound 1 shows that the complex consists of horseshoe-shaped (μ-Htdp)Tl(μ-H2O)Tl(μ-Htdp) subunits. Solid-state luminescent spectra of the ligand H2tdp and compound 1 indicate emission band with the maximum intensity at 475 and 465 nm upon excitation at 300 nm, respectively. 相似文献
19.
Qiang Gao Ming-Yan Wu Lian Chen Fei-Long Jiang Mao-Chun Hong 《Inorganic chemistry communications》2009,12(12):1238-1241
A novel In(III) coordination complex, [In(ptc)(H2O)]n (H3ptc = 4,4′,4″-phosphoryltribenzoic acid) (1), was synthesized under hydrothermal condition and characterized by single-crystal X-ray analysis, IR, X-ray powder diffraction (XRD), thermogravimetric analysis (TGA) and solid-state photoluminescence. Complex 1 crystallizes in a chiral P21 space group, In(III) ions are eight-coordinated and the ligand exhibits a novel and unique tetrahedral coordination mode. The complex shows intense blue emission at 435 nm with the excitation of 330 nm. 相似文献
20.
《Inorganic chemistry communications》2007,10(10):1210-1213
A new μ-oxo-bridged Cu(II) complex with cubane-like tetranuclear copper(II) complex, [Cu4(L1)4] · 4H2O (1) (H2L1 = 2-(3-methoxy-salicylidene-amino)-benzyl-alcohol), has been prepared, and structurally characterized by X-ray crystallography. Complex 1 crystallized in the monoclinic space group P21/n and has a tetranuclear core of Cu4O4. The temperature dependence of magnetic susceptibility measurements shown that complex 1 exhibits a strong antiferromagnetic interaction with J = −103.4 cm−1. 相似文献