научный журнал по химии Координационная химия ISSN: 0132-344X

Архив научных статейиз журнала «Координационная химия»

  • ANIONS-INDUCED ASSEMBLY: STRUCTURES AND LUMINESCENT PROPERTIES

    WANG L.P., XU D.L., YANG M.D., ZHANG N., ZHOU H.P., ZHU Q.Y. — 2014 г.

    Self-assembly of a multidentate ligand containing pyridyl groups, namely, 6-phenyl-4-(4-[2-(2-naphthalene)ethenyl]phenyl)-2,2-bipyridine (L) with corresponding zinc(II) salts, affords a series of coordination complexes, ZnLI2 (I), [ZnLCl2]2 · 2CH2Cl2 (II), ZnLBr2 (III). Complexes I and II were characterized by single crystal X-ray diffraction (CIF files CCDC nos. 943 273 (I), 944 798 (II)). In complex I, the stacking and C H... interactions based on the pyridyl group constructed the 1D and 2D structures. While in complex II, various weak interactions including hydrogen bonds (C–H···Cl and C H... ) played significant roles in the final supramolecular structures. The luminescent properties of ligand and the complexes were investigated. The results reveal that different anions have shown a great influence on both the molecular structures and luminescent properties of the complexes.

  • CONSTRUCTION OF 0D TO 3D COPPER(II) MOFS BASED ON HETEROCYCLIC CARBOXYLIC ACID: SYNTHESIS, STRUCTURES, CYCLIC VOLTAMMOGRAMS, AND LUMINESCENT PROPERTIES

    LIU L., WU L.Z., YANG L.R., YOU Q.Q., ZHANG H.M. — 2014 г.

    The crystal structures of MOFs [Cu(PDA)(Phen)(H2O)]2 · 5H2O (I) and [Cu(PZCA)2(H2O)2] · 2H2O (II) (H2PDA = pyridine-2,6-dicarboxylic acid, Phen = 1,10-phenanthroline, HPZCA = pyrazine-2-carboxylic acid, H2PZDA = pyrazine-2,3-carboxylic acid) have been prepared under hydrothermal conditions. These MOFs have been characterized by element analysis, single-crystal X-ray diffraction, thermogravimetric analyses and IR spectroscopy. 3D frameworks of MOFs I and II are fabricated from zero-dimensional (0D) motifs through hydrogen bonds and interactions. In MOF II, the PZCA ligand comes from in situ decarboxylation of the part of pyrazine-2,3-dicarboxylic acid (H2PZDA). Luminescent emissions bands of MOF I in methanol have been measured at room temperature and it displays selectivity to Zn2+, Cu2+, Pb2+, and Cd2+ ions. Cyclic voltammetry of MOFs I and II showed that the Cu(II/I) couple is irreversible.

  • CONSTRUCTION OF TWO NEW 3D SUPRAMOLECULAR NETWORKS WITH 3-PYRIDYL-4-YL-BENZOIC ACID LIGANDS: SYNTHESIS, CHARACTERIZATION, AND LUMINESCENCE

    GUO J., LI S.J., LIU J.S., MIAO D.-L., SONG W.D. — 2014 г.

    Two new coordination polymers with 3-pyridyl-4-yl-benzoic acid (3,4-HPybz), namely, [Zn(3,4-Pybz)2 · 2H2O]n (I) and [Ag(3,4-Pybz)(3,4-HPybz)]n (II), have been synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, and single crystal X-ray diffraction. Compound I crystallizes in the triclinic system and has P1 space group. Complex I is an infinite 1D chain polymer and the infinite chains array uniformly in a 3D supramolecular network which posesses abundant O–H···O hydrogen-bonding interactions among the occupied and unoccupied carboxylate O atoms and the coordinated water molecules; Compound II crystallizes in the triclinic system and has P space group, II is an infinite chain with the repeat sequence of Ag1(I)–Ag2(I)–Ag1(I), in which weak intermolecular interactions play a key role in forming the final 3D supramolecular architectures. The photoluminescences and lifetime of I and II in the solid state have been investigated.

  • COORDINATION CHEMISTRY OF SCHIFF BASE TIN COMPLEXES

    KUMAR D., MANJU, NEELIMA MISHRA — 2014 г.

    The most important results of extensive studies of tin metal complexes with Schiff base ligands are reviewed. A large number of inorganic compounds are known but still there is a need of new compounds to develop various efforts in different fields for biomedical applications.

  • CRYSTAL STRUCTURES AND ELECTROCHEMICAL PROPERTIES OF TWO MN(II) 2-SULFOTEREPHTHALATE COMPLEXES WITH N-DONOR LIGANDS

    HAO T., REN Y., WANG D., WANG Y., YU H., ZHANG M. — 2014 г.

    Two Mn(II) sulfoterephthalate complexes, [Mn(HStp)(o-Phen)2] (I) and [Mn(HStp)(2,2’-Bipy)2] (II) (H3Stp = 2-sulfoterephthalic acid, o-Phen = 1,10-phenanthroline, 2,2-Bipy = 2,2-bipyridine), were synthesized under hydrothermal condition. Single crystal X-ray diffraction analyses reveal that complexes I and II possess similar structure, in which the center Mn2+ ions are hexa-coordinated with one Hstp- anion and two N-donor ligands. For both of them, the formation of 3D supramolecular structures are based on both H-bonds and ... /C H... stacking interactions. Electrochemical properties of complexes I and II have been investigated by means of cyclic voltmetry, which shows that electron transfer between Mn(III) and Mn(II) in electrolysis is quasi-reversible process.

  • CRYSTAL STRUCTURES AND LUMINESCENCE OF A SERIES OF CADMIUM(II) COMPLEXES BASED ON ISOPHORONE DERIVATIVE CONTAINING IMIDAZOLYL

    LI H.J., WANG L.P., WU Z.C., XI W.G., YANG M.D., ZHOU H.P. — 2014 г.

    Three new complexes, [CdL2(CH3COO)2(H2O)2] (I), CdL2Br2 (II), CdL2I2 (III), have been successfully synthesized by self-assembly of corresponding metal salts with (E)-2-(3-(4-(1H-imidazole-1-yl)styryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile (L). The structures of the complexes were determined by single crystal X-ray diffraction analysis (CIF file CCDC nos. 957831 (I), 957792 (II), 957832 (III)). In complex I, central metal is six-coordinated and the crystal packing shows a 3D supramolecular framework. Complexes II and III display the similar 2D supramolecular structures in which the central metals are four-coordination. The luminescent properties were investigated.

  • CИНТЕЗ И ТЕРМИЧЕСКОЕ РАЗЛОЖЕНИЕ ДВОЙНЫХ КОМПЛЕКСНЫХ СОЕДИНЕНИЙ [NIA(PN)B]X[FE(CN)6]Y (PN = 1,3-ДИАМИНОПРОПАН)

    ГОСТЕВА А.Н., ПЕЧЕНЮК С.И. — 2014 г.

    Изучен синтез и термическое разложение двойных комплексных соединений состава [Ni(Рn)2]2[Fe(CN)6] · 3H2O (I), [Ni3(Рn)5][Fe(CN)6]2 · 9H2O (II), [Ni5(Рn)9][Fe(CN)6]3 · 9H2O (III) и [Ni(Рn)2]3[Fe(CN)6]2 · 6H2O (IV) (Рn = пропилендиамин). Термолиз проводили в окислительной (воздух), восстановительной (водород) и инертной (аргон) атмосферах в области температур 20–1000°C. Изучен состав твердых и газообразных продуктов термолиза. Показано, что в атмосфере воздуха углерод лигандов удаляется в виде СО и СО2, а твердые остатки представляют собой смеси оксидов никеля и железа с интерметаллидом Ni3Fe. В атмосфере водорода часть лигандов удаляется в неизмененном виде, часть подвергается гидрированию до аммиака и углеводородов, а твердый остаток при температурах >550°C представляет собой биметаллические фазы с небольшой примесью углерода. В атмосфере аргона часть лигандов удаляется без изменения либо в виде фрагментов молекулы Рn; твердые остатки от прокаливания содержат смесь металлической и оксидной фаз и от 10 до 20% исходного содержания углерода.

  • HETEROMETALLIC COMPLEXES OF MACROCYCLIC OXAMIDE WITH POLYCARBOXYLATES: SYNTHESES, CRYSTAL STRUCTURES, AND MAGNETIC PROPERTIES

    LIU S.Y., LIU X.X., SUN Y.Q., WANG J. — 2014 г.

    Three complexes with the formula [Co(Ip)(CuL)(H2O)2] · H2O (I), [Co(Ip)(NiL)(H2O)2] · H2O (II), [Co(CuL)2(Hbtc)(H2O)](III), (H2Ip = m-isophthalic acid; H2L = 2,3-dioxo-5,6,14,15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-dien; H3Btc = 1,3,5-benzenetricarboxylic acid) were synthesized and structurally characterized by elemental analysis, IR and UV spectroscopy. Single-crystal X-ray analyses reveal that the complexes I and II contain neutral heterometallic binuclear CoM (for I and II, M = Cu, Ni, respectively) moieties, and complex III contains discrete neutral trinuclear CoCu2 moieties. The structures of I–III consist of two-dimensional supramolecular architecture formed by strong O–H···O intermolecular hydrogen bonds. Furthermore, the magnetic properties of complex I were investigated and discussed in detail.

  • HYDROTHERMAL SYNTHESIS, CRYSTAL STRUCTURE, AND PROPERTIES OF TWO NOVEL BINUCLEAR COMPLEXES BASED ON ZALTOPROFEN AND 2,2-BIPYRIDINE LIGANDS

    HUANG Z.J., LI L., PAN G.H., REN T.T., TANG J.N., WANG D.Y. — 2014 г.

    Two novel binuclear metal-organic coordination complexes [M2(Zaltoprofen)2(Bipy)2] [M = Cd (I), Zn (II); Zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid, Bipy = 2,2-bipyridine) have been synthesized under hydrothermal conditions and characterized by single crystal X-ray diffraction, elemental analysis, IR and electronic spectroscopy, powder X-ray diffraction, and fluorescent properties. Complexes I, II crystallize isomorphously in the monoclinic space group P21/c. Structural analysis shows that the M(II) atom of I and II is coordinated with four oxygen atoms from the carboxyl group of the Zaltoprofen together with two nitrogen atoms from the Bipy. The 3D structures of the complexes are stabilized by stacking interactions.

  • IONOTHERMAL SYNTHESIS OF TWO CHIRAL THREE-DIMENSIONAL METAL-ORGANIC FRAMEWORKS BASED ON D-CAMPHORIC ACID

    BAI Y., CHEN S., DANG D.B., LI L., NING Y.J. — 2014 г.

    Two three-dimensional chiral metal-organic frameworks [PMIm][Co2(D-Cam)2(CH3COO)] (I) and [BMIm][Mn2(D-Cam)2(CH3COO)] · H2O (II) (PMIm = 1-propyl-3-methylimidazolium, BMIm = 1-butyl-3-methylimidazolium, D-Cam = D-camphoric acid) have been synthesized under the ionothermal conditions and structurally characterized by IR spectroscopy, elemental analysis, XRPD, and X-ray single-crystal structure analysis (CIF files CCDC nos. 979 650 (I) and 979 649 (II)). Two structures exhibit similar three-dimentional frameworks constructed by the coordination interactions of binuclear metal secondary building units and two bridging ligands of D-Cam and CH3COO-, in which [PMIm]+ cations for I and [BMIm]+ cations for II as templates are filled in the void of frameworks.

  • METAL COMPLEXES OF BIOLOGICAL ACTIVE 2-AMINOTHIAZOLE DERIVED LIGANDS

    JOSHI P., KUMAR D., MANJU — 2014 г.

    The most imperative outcomes of extensive sterdies (synthesis, spectral, structural characterization and biological applications) of metal complexes with thiazole derived ligands are reviewed. A large number of coordination compounds are known but still there is a need of new compounds to develop various efforts in different fields for biomedical applications. The synthesis of Schiff base ligands is very important, and it has recently drawn the attention of numerous research groups, making this area constantly evolve. Authors are also synthesizing some novel biologically potent ligands and their unique complexes and complexes found more biological active agents than that of ligands against bacteria, fungi and herbs. Highlights: Schiff bases and their metal chelates catalyze reactions; Schiff bases derived from sulfane thiadiazole show toxicities against insects; Schiff bases of thiadiazole have good plant regulator activity; Phenyl ring attached to the thiazole group showed interesting structure activity.

  • NEW VANADIUM AND ZINC COMPLEXES WITH SCHIFF BASE LIGAND N,N-BIS(3-ETHOXY-2-HYDROXYBENZYLIDENE)ETHYLENEDIAMINE: SYNTHESIS, STRUCTURES, AND BIOCHEMICAL PROPERTIES

    LI C., LIU H.Y., MA J.J. — 2014 г.

    The Schiff base ligand N,N-bis(3-ethoxy-2-hydroxybenzylidene)ethylenediamine (H2L) reacting with vanadyl acetylacetonate and zinc chloride, respectively, in methanol gave the complexes [VOL] · H2O (I) and [ZnL(OH2)] (II). Both complexes were characterized by elemental analyses and IR spectroscopic method in the solid state. Single crystal X-ray analysis was performed, which reveals that both of them are mononuclear complexes. Complex I crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 9.4387(7), b = 16.996(1), c = 12.758(1) A, = 98.269(2)°, V = 2025.4(3) A3, Z = 4, R1 = 0.0365, and wR2 = 0.0946. Complex II crystallizes in the tetragonal space group P 1m with unit cell dimensions a = b = 22.0489(8), c = 4.9846(4) A, V = 2423.3(2) A3, Z = 4, R1 = 0.0890, and wR2 = 0.2278. The V atom in I and the Zn atom in II are in square pyramidal coordination. Anbacterial activities of the Schiff base ligand and the complexes have been studied on the strains B. subtilis, E. coli and S. aureus.

  • NOVEL 1D MN(II) COMPLEXES CONTAINING AROMATIC DICARBOXYLIC ACIDS

    CHEN C., DUAN Q., SHI L., SHI T., SI Z., ZHAO D. — 2014 г.

    Three Mn(II) complexes of [MnL(Bipy)(H2O)]n (I), [Mn3(Phen)2(HL)2(L)2]n (II), and [Mn(Phen)2(HL)(OH)] (III), where L = 4,4-(2-acetylpropane-1,3-diyl)dibenzoic acid, Bipy = 2,2-bipyridine, and Phen = 1,10-phenanthroline, were hydrothermally synthesized and characterized by single crystal X-ray diffractions, infrared spectroscopy, thermogravimetric analyses, and magnetic analyses. Complexes I and II are one dimensional (1D) coordination polymers which can form the supramolecules with the help of the intermolecular hydrogen bond interactions. Finally, the lande factors are simulated by magentochemical analysis to be 2.15 and 1.80 for I and II with S = 5/2, respectively.

  • PALLADIUM CATALYZED HECK-MIZOROKI AND SUZUKI-MIYAURA COUPLING REACTIONS (REVIEW)

    DANISH M., MOHSIN M.A., MURTAZA S., NAZAR M.F., ZAFAR M.N. — 2014 г.

    This article is about the progress of palladium compounds as a catalyst for Heck–Mizoroki and Suzuki Miyaura coupling reactions. Industrial catalysts with broad applicability need continuous catalyst development process through modification of ligand design, geometry and functionality. Recently catalysts have been synthesized through attachment of the activated palladium complexes on the surface of polymer support, particularly, insoluble in reaction medium. An appropriate mixture of palladium salt and ligand is also used as an important modification in some cases to get better results. We surveyed the important palladium compounds synthesized up to early 2014 for Heck–Mizoroki and Suzuki Miyaura coupling reactions and summarize their progress in terms of ligand modification and other associated parameters.

  • STRUCTURAL DIVERSITY OF TWO NOVEL COMPLEXES OF CO(II) WITH BIS-TRIAZOLE LIGAND: FROM ONE-DIMENSIONAL CHAIN TO TWO-DIMENSIONAL POROUS NETWORK

    DING B., LIU Y.Y., YANG P. — 2014 г.

    Using two novel bis-triazole ligands, 2,6-bis(1,2,4-triazole-4-yl)pyridine (L1) and 1,6-bis(1,2,4-triazole-1-yl)hexane (L2), one novel one-dimensional (1D) chain polymer [Co(NCS)2(L1)2]n (I) and one two-dimensional (2D) coordination polymer [Co(NCS)2(L2)2]n (II) have been synthesized and structurally characterized. The crystal crystallizes in the triclinic system for I, space group a = 7.879(6), b = 8.830(7), c = 9.837(8) A, = 70.230(11)°, = 115.474(6)°, = 85.591(12)°, Z = 1. The crystal crystallizes in the mo-noclinic system for II, space group a = 7.879(6), b = 8.830(7), c = 9.837(8) A, = 70.230(11)°, = 115.474(6)°, = 85.591(12)°, Z = 1. The structural diversity of these two new Co(II) complexes vary from 1D chain to 2D porous supramolecular network, which may be ascribed to ligand directing effects under similar synthetic conditions (L1 contains rigid pyridine spacers while L2 contains flexible hexane spacers).

  • SYNTHESES AND CRYSTAL STRUCTURES OF TWO COORDINATION POLYMER BASED ON 1,3,5-TRIS(IMIDAZOL-1-YLMETHYL)-2,4,6-TRIMETHYLBENZENE

    LIU G.X., LIU Z.Q. — 2014 г.

    Two novel coordination polymers, [Zn2(CAM)2(Titmb)] (I) and [Zn4Co(OH)2(BTEC)2(Titmb)2(H2O)2] · 2H2O (II) (H2CAM = camphor acid, H4BTEC = 1,2,4,5-benzenetetracarboxylic acid, and Titmb = 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene), have been hydrothermal prepared and characterized by IR spectroscopy, elemental analysis, and single-crystal X-ray diffraction. Complex I displays an unusual three-dimensional (3,4,6)-connected network with (4.64.8)2(42.64.89)(62.8)2 topology. Complex II exhibits an interesting heterometallic 3D metal-organic framework. Moreover, the luminescent properties of I have been investigated in the solid state at room temperature.

  • SYNTHESES AND STRUCTURAL DETERMINATION OF MONONUCLEAR NINE-COORDINATE (MNH)[GDIII(EDTA)(H2O)3] · 4H2O AND 2D LADDER-LIKE BINUCLEAR NINE-COORDINATE (MNH)2[GD (H2TTHA)2] · 4H2O

    KONG D.Y., LI Y., MA C.C., QIN C., WANG J., WU Q. — 2014 г.

    Two title rare earth metal coordination compounds, (MnH)[GdIII(Edta)(H2O)3] · 4H2O (I) and (МnH)2Gd (H2Ttha)2] · 4H2O (II), where Mn = methylamine, H4Edta = ethylenediamine-N,N,N,N-tetraacetic acid, H6Ttha = triethylenetetramine-N,N,N,N,N,N-hexaacetic acid), have been successfully synthesized through direct heating reflux and characterized by FT-IR spectroscopy, thermal analysis and single-crystal X-ray diffraction techniques. In complex I, the Gd3+ ion is nine-coordinated by an Edta ligand and three water molecules, yielding a pseudo-monocapped square antiprismatic (MC-SAP) conformation. Complex I crystallizes in the orthorhombic crystal system with space group Fdd2. The cell dimensions are as follows: a = 19.5207(17), b = 35.387(3), c = 12.5118(11) A, and V = 8642.8(13) A3. The central Gd3+ ion of II is also nine-coordinate, forming tricapped trigonal prismatic (TC-TP) conformation with three amine nitrogen atoms and six oxygen atoms. Complex II crystallizes in the monoclinic crystal system with P2/c space group. The crystal data are as follows: a = 14.4301(13), b = 11.2400(11), c = 17.7102(16) A, = 112.606(2)°, and V = 2651.8(4) A3. There retain outer-protonated and inner-protonated carboxyl oxygen atoms in the [Gd (H2Ttha)2]2 complex anion. In II, there are only one type of methylamine cation (MnH+) as the counter ion, which connects [Gd (H2Ttha)2]2 complex anions and lattice water molecules through hydrogen bonds, leading to the formation of 2D ladder-like layer structure.

  • SYNTHESIS AND STRUCTURES OF COPPER(II) AND CADMIUM(II) COMPOUNDS BASED ON PYRIDAZINE DERIVATIVE LIGANDS

    LI S.W., WANG Y.F., ZHAO J.S. — 2014 г.

    The two new compounds [Cu(HODA)2(H2O)2] · 3H2O (I) and [Cd(HODA)2(H2O)3] (II) (HODA = 6-oxo-1,6-dihydropyridazine-4-carboxylic acid) based on pyridazine derivation ligands have been synthesized and characterized by elemental analysis, infrared spectrum and X-ray single crystal diffraction. X-ray analysis shows that in compound I, Cu2+ ion is four-coordinated with a plane square geometry while Cu2+ ion in compound II is seven-coordinated with a distorted pentagonal bipyramid geometry. Both of the two units are all connected as 3D supramolecular structures by the intermolecular hydrogen bonds. Moreover, thermal gravimetric analysis of two compounds has been also investigated.

  • SYNTHESIS, CHARACTERIZATION, AND ANTIBACTERIAL ACTIVITY OF TWO ZINC(II) COMPLEXES WITH SCHIFF BASES DERIVED FROM RIMANTADINE

    CHANG X.H., GE C.H., JIN X.D., JIN Y.H., LIU D.L., WANG H.B., XU C., YIN X.Y., ZOU Z.Y. — 2014 г.

    the reactions of zinc(II) chloride and two Schiff base ligands derived from rimantadine and 5-chlorosalicylaldehyde/4-methoxysalicylaldehydes, generated two novel complexes [Zn(L1)2Cl2] (I) and [Zn(L2)2Cl2] (II), where L1 = 2-((1-(1-adamantan-1-yl)ethyl)-iminomethyl)-4-chlorophenol, L2 = 2-((1-(1-adamantan-1-yl)ethyl)iminomethyl)-5-methoxyphenol. The complexes were characterized by the means of IR, 1H NMR, elemental analysis, molar conductance and thermal analysis. A single-crystal X-ray diffraction analysis reveals that both complexes crystallize in orthorhombic system, space group Fdd2 for I and Pbcn for II. In two complexes crystals, each asymmetric unit consists of one zinc(II) ion, two corresponding Schiff base ligands and two chlorine atoms; the central zinc atom lies on a twofold rotation axis and is four-coordinate via two chlorine atoms and two oxygen atoms from the Schiff base ligands, forming a distorted tetrahedral geometry.

  • SYNTHESIS, CHARACTERIZATION, AND ANTIBACTERIAL ACTIVITY OF TWO ZINC(II) COMPLEXES WITH SCHIFF BASES FROM HALOGENATED SALICYLALDEHYDE AND AMANTADINE

    HAN G.C., HU H.H., JIN X.D., LIU D.L., LIU X.C., WANG B.X., XU C., YANG Q. — 2014 г.

    By a condensation reaction of halogenated salicylaldehyde and amantadine, two new Schiff base ligands (HL1 and HL2) were synthesized, respectively. A followed mixture of the ligands and zinc(II) chloride in the presence of NaOH in an alcoholic medium brought out two novel complexes (ZnL ) (I) and (ZnL ) (II). These two complexes were characterized by the means of melting point, elemental analysis, IR, UV-Vis, 1H NMR, molar conductance and single-crystal X-ray diffraction analysis. X-ray diffraction analysis reveals that I crystallizes in monoclinic system, P21/c space group, a = 9.7812(5), b = 25.6198(12), c = 27.7381(18) A, = 105.881(4), F(000) = 1416, R1 = 0.0731, wR2 = 0.1147; II crystallizes in orthorhombic system, Pbca space group, a = 11.1717(10), b = 20.5888(15), c = 27.7381(18) A, F(000) = 2976, R1 = 0.1341, wR2 = 0.1410. Both in I and II, the central zinc(II) atom is four-coordinated via two nitrogen atoms and two oxygen atoms from the corresponding Schiff base ligands, forming a distorted tetrahedral geometry.