共查询到20条相似文献,搜索用时 31 毫秒
1.
Selcuk Demir Veysel T. Yilmaz Bahtiyar Sariboga Orhan Buyukgungor Jerzy Mrozinski 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(2):220-228
Four novel divalent transitional metal succinates (suc) with nicotinamide (nia), {[M(μ-suc)(H2O)2(nia)2]·2H2O}
n
[M = Mn (1), Ni (2)], [Cu(suc)(nia)2] (3) and [Ni(H2O)4(nia)2](suc)·(H2suc) (4), have been synthesized and characterized by elemental analyses, IR and TG-DTA. X-ray analyses of 2 and 4 reveal that they crystallize in a triclinic space group P[`1]. P\bar{1}. Complex 2 is a 1-D coordination polymer, in which the metal(II) ions exhibit an octahedral geometry with two suc, two nia and two aqua
ligands. The nia ligand is N-bonded, while the suc ligand bridges the metal centres through the carboxylate groups. 4 contains the [Ni(H2O)4(nia)2]2+ complex cations, uncoordinated suc and H2suc species, which are connected into a two-dimensional layered structure by the combination of N–H⋯O and OW–H⋯O hydrogen
bonds. This is one of the scarce examples encountered in coordination chemistry, which contains uncoordinated suc and H2suc at the same time. The spectroscopic and structural analysis, luminescent and magnetic properties and the antimicrobial
activities of the synthesized complexes were investigated. 相似文献
2.
Veysel T. Yilmaz Evrim Senel Canan Kazak 《Journal of Inorganic and Organometallic Polymers and Materials》2008,18(3):407-413
The reaction of [Cu(sac)2(H2O)4] · 2H2O with 2-methylpyrazine (mpyz) leads two complexes, concomitant crystallization of a mononuclear complex [Cu(sac)2(mpyz)(H2O)2] (1) and a polymeric complex [Cu(sac)2(μ-mpyz)]n (2). Both complexes have been characterized by elemental analyses, magnetic measurements, FT-IR and ESR, TG-DTA and single-crystal
X-ray diffraction analyses. Single-crystal X-ray analyses show that complex 1 consists of discrete molecules in which the copper(II) ions exhibits a square-pyramidal coordination geometry. The individual
molecules of 1 are connected into a hydrogen-bonded chain structure, which is further assembled to form a three-dimensional network by π–π stacking interactions.
Complex 2 is an 1D coordination polymer in which copper(II) centers are bridged by the mpyz ligand. The chains are further assembled
to form two-dimensional frameworks by π–π and C–H···π stacking interactions. 相似文献
3.
Masoumeh Tabatabaee Vajieh Razavimahmoudabadi Boris-Marko Kukovec Mitra Ghassemzadeh Bernhard Neumüller 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):450-457
Two novel 1D coordination polymers, [M(μ-2,3-pydc)(H2O)3]n (M = Cd for 1 and Co for 2) (2,3-pydcH2 = pyridine-2,3-dicarboxylic acid) have been hydrothermally synthesized. Both complexes were characterized by elemental analysis
and by IR and UV–Vis spectroscopy. Their molecular and crystal structures were determined by X-ray crystal structure analysis
and their thermal stability by TGA-DTA methods. Compound 1 crystallizes in the orthorhombic Pca2 space group, while compound 2 crystallizes in the triclinic P−1 space group. Polymeric chains of 1 and 2 are composed of M(II) ions bridged by pyridine-2,3-dicarboxylate ions (2,3-pydc) in N,O,O′ fashion. Distorted octahedral coordination geometry around the metal ions is completed by three water molecules. A wide
range of hydrogen bonding (of the O–H···O type) is also present in the crystal structures. These interactions lead to formation
of a 3D structure for 1 and 2D network for 2. 相似文献
4.
Hakan Erer Okan Zafer Ye?ilel Orhan Büyükgüng?r 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(4):774-782
Three M(II)-squarate complexes, [Co(sq)(H2O)(Nmim)4] (1), [Zn(μ1,3-sq)(H2O)2 (Nmim)2]
n
(2) and [Cd(μ1,3-sq)(H2O)2(Nmim)2]
n
(3) (sq = squarate, Nmim = N-methylimidazole) have been synthesized and characterized by elemental, spectral (IR and UV–Vis.) and thermal analyses. The
molecular structures of the complexes have been investigated by single crystal X-ray diffraction technique. The squarate ligand
acts as two different coordination modes as a monodentate (in 1) and bis(monodentate) (O
1–
O
3
) bridging ligand (in 2, 3). The Co(II) atom has a distorted octahedral geometry with the basal plane comprised of three nitrogen
atoms of Nmim ligands and a oxygen atom of squarate ligand. The axial position is occupied by a nitrogen atom of Nmim and
one aqua ligand. The crystallographic analysis reveals that the crystal structures of 2 and 3 are one-dimensional linear chain
polymers along the c and b axis, respectively. The configuration around each metal(II) ions are distorted octahedral geometry
with two nitrogen atoms of trans-Nmim, two aqua ligands and two oxygen atoms of squarate-O1,O3 ligand. These chains are held together by the C–H···π, π···π and hydrogen-bonding interactions, forming three-dimensional network. 相似文献
5.
Fatih Semerci Okan Zafer Yeşilel Ertan Şahin 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(2):334-342
Two new Cu(II) and Zn(II)-pyridine-2,3-dicarboxylate (pydc) complexes with 2-methylimidazole (2-Meim), [Cu(pydc)(2-Meim)3]·H2O (1) and {[Zn(μ-pydc)(H2O)(2-Meim)]·H2O}n (2) have been synthesized and characterized by elemental, spectral (IR and UV–Vis.) and thermal analyses. The molecular structures of mononuclear (1) and polynuclear (2) complexes have been determined by the single crystal X-ray diffraction. Compound 1 crystallizes in the triclinic P ? 1 space group, while compound 2 crystallizes in the monoclinic P21/c space group. The pyridine-2,3-dicarboxylate ligand acts in two different coordination modes; namely, bidentate-(N,O) for 1 and μ-tridentate-(N,O,O) for 2, the latter displaying a 1D polynuclear structure. The crystal packing of the complexes exhibit 3D supramolecular frameworks including channels by C–H···π, π···π, and N–H···O interactions. Water molecules occupy the channels by O–H···O hydrogen bonds. 相似文献
6.
Ki-Young Choi In-Tack Lim Kyu-Chul Lee Ki-Young Oh Moon-Jip Kim 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(1):295-300
The reaction of [Ni(L)]Cl2·2H2O (L = 3.14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,01.18,07.12]docosane) with trans-1,4-cyclohexanedicarboxylic acid (H2chdc) generates a 1D coordination and 2D hydrogen-bonded polymer {[Ni(L)(chdc)2]·2H2O}n (1). The polymer complex was characterized by X-ray crystallography, spectroscopy and magnetic susceptibility. Each nickel(II)
ion has a distorted octahedral coordination environment with the four secondary amines of the macrocycle in which two trans carboxylate anions of the chdc2− ligand have assembled around each nickel center. The electronic spectrum of 1 in the solid state exhibits a high-spin octahedral environment. The magnetic behavior of 1 reveals a weak intramolecular antiferromagnetic interaction with J values of −1.15(2) cm−1. 相似文献
7.
Yu Ding Zheng-Bing Fu Xin-Liang Hu Cai-Fen Xia 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(4):642-648
Two inorganic–organic hybrid frameworks, namely [Cu2(pdca)2(bibp)(H2O)2]·H2O (1) and [Fe(pdca)(pyco)(H2O)]·H2O (2) (H2pdca = pyridine-2,6-dicarboxylic acid, bibp = 4,4′-bisimidazolylbiphenyl, pyco = picolinate N-oxide) were synthesized via
hydrothermal reactions. Both compounds have been characterized by elemental analysis, spectroscopic analysis, thermogravimetric
analysis (TGA) and the single crystal diffraction. Complex 1 is dinuclear and five-coordinated copper(II) complex, while complex 2 displays mono-nuclear and six-coordinated iron(III) complex. In the crystal structures of both complexes, the coordinated
and crystalline water molecules and H2pdca ligands contribute to the formation of O–H···O and C–H···O hydrogen bonds, which link the molecules into layers parallel.
Cyclic voltammetry (CV) analysis shows one reversible reduction potential at 0.14 V (Epc) in complex 1, whereas in complex 2 shows a reduction potential at 0.15 V (Epc) in the cathodic region. 相似文献
8.
Himangshu Deka Rupam Sarma Jubaraj B. Baruah 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(2):384-390
A design principle for seven coordinated metal carboxylate complexes and coordination polymers of Mn(II), Cd(II) and Na(I)
derived from (3-carboxymethoxy-naphthalen-2-yloxy)-acetic acid (LH2) is presented. The complexes/coordination polymer [Mn(L)(H2O)3]·3H2O (1), [{Cd(L)(H2O)2}·H2O]n (2); [Cd(L)(py)3]·3H2O (3) have metal ions in pentagonal bipyramid environments (py = pyridine). The coordination polymer [{Cd(L)(H2O)2}·H2O]n (2) may be considered to be the self-assembly of hexacoordinated [Cd(L)(H2O)2] units; it reacts with pyridine to form mono-nuclear complex 3. Depending on the reaction conditions, Ni-coordination polymers of L adopt different compositions. From the reaction carried out with NiCl2 and NaOH in quinoline and water, a hetero bimetallic coordination polymer; namely, [[NaL(H2O)]2Ni(H2O)4]n (4) is obtained. A similar reaction in pyridine-water solvent led to [{Ni(L)(py)3}.py]n (5). The coordination polymer 5 has pyridine in its interstices held by C–H···π interactions. 相似文献
9.
Maryam Ghoreishi Amiri Ali Morsali Fahime Bigdeli 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(1):195-200
A new 1D supramolecular involving two different ligands, {[Zn(GB)2]·(μ-bpe)3}
n
(ClO4)2n
·nH2O (GB = 2-guanidinobenzimidazole and bpe = 1,2-bis(4-pyridyl)ethylene, has been synthesised, characterized by elemental analysis,
IR-, 1H NMR-, 13C NMR spectroscopy. The thermal stability of compound {[Zn(GB)2]·(μ-bpe)3}
n
(ClO4)2n
·nH2O was studied by thermal gravimetric and differential thermal analyses. The single crystal X-ray analysis shows that the complex
is a one-dimensional polymer involving macrocycle rings as a result of non-covalent bridging bpe ligands via N–H···N and N···N
interactions, N–H···bpe···bpe···H–N, with the basic repeating {[Zn(GB)2](μ-bpe)3}(ClO4)2·H2O units and by connecting [Zn(GB)2]2+ nodes. ZnO nanoparticles were obtained by calcination of compound {[Zn(GB)2]·(μ-bpe)3}
n
(ClO4)2n
·nH2O at 500 °C in air. The nanoparticles were characterized by X-ray diffraction and scanning electron microscopy. 相似文献
10.
Shokufeh Aghabeygi Fahime Bigdeli Ali Morsali 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(2):526-529
Two zinc(II) coordination polymers, {[Zn(3-bpdb)(NO2)]·0.5H2O}
n
(1) and [Zn(4-bpdb)(NO2)2]
n
(2), 3-bpdb = 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene and 4-bpdb = 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene}, have been
synthesized and characterized by elemental analyses and IR spectroscopy. Nanoparticles of zinc(II) oxide have been prepared
by thermolyses of two different zinc(II) coordination polymers, 1–2. The nano-materials were characterized by scanning electron microscopy, X-ray powder diffraction and IR spectroscopy. The
thermal stability of ZnO nano-particles was studied by thermal gravimetric and differential thermal analysis and showed that
there is no loss of weight, which indicates that the products were zinc(II) oxide. This study demonstrates the coordination
polymers may be suitable precursors for the preparation of nanoscale materials. 相似文献
11.
Bingjun Zhang Cuijuan Wang Zhenghong Cai Shuai Huang Xianli Zhou Yaoyu Wang 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(1):205-212
Abstract
A new bipod polyaromatic acid ligand H2bcm (H2bcm = {2, 4-bis [(2′-carboxyphenoxy) methyl]-1,3,5-trimethylbenzene}) is prepared and its two novel binuclear coordination compounds, [Cu2(bcm)2(CH3OH)2]·2CH3OH (1) and [Cu2(bcm)2(CH3CH2OH)2]·2CH3CH2OH (2), have been synthesized with copper acetate and H2bcm ligand in methanol solvent and ethanol solvent respectively, and characterized by the element analysis, IR, TGA and single crystal X-ray diffraction. The results of structural analysis indicate that 1 crystallizes in the triclinic system with space group P1, while 2 crystallizes in the monoclinic system with space group P21 /c. Furthermore, 1 adopts μ 2 -COO− and syn–syn coordination mode with Cu (II)···Cu (II) separation of 2.5868(11) ? and forms 1D zigzag chain structure by O···O interactions. The coordination of 2 is similar to that of 1 except that ethanol molecules are coordinated instead of methanol molecules with Cu (II)···Cu (II) separation of 2.5973(13) ?. Two-dimensional network structures of 1 and 2 are formed through π–π interactions. 相似文献12.
Ling-Ling Yu 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(1):278-282
Two new metal–organic coordination polymers containing Mn(II) and Cd(II) with oxo-bridged and N-donor ligands, [Mn(oba)(2,2′-bipy)]
n
(1) and {[Cd(oba)(bib)]·H2O}
n
(2) [2,3′-H2oba = 2-(3-carboxyphenoxy)benzoic acid, 2,2′-bipy = 2,2′-bipyridine, and bib = 4,4′-bis(2-methylimidazole-1-ylmethyl)biphenyl],
have been prepared and characterized by elemental analysis, Fourier infrared spectroscopy, and X-ray diffraction. Complex
1 has a 3D supramolecular network constructed from 1D zigzag chain via π–π stacking interactions. Complex 2 features 1D ladder-like chain which consists of 1D helical arrays and bib pillars. Moreover,
photoluminescence properties of the bib ligand and the Cd(II) complex were investigated. 相似文献
13.
Lijun Song Tomokazu Iyoda 《Journal of Inorganic and Organometallic Polymers and Materials》2009,19(1):124-132
A novel ligand L, 4-(1-hydroxy-3-oxo-3-phenylpropenyl)-1-methylpyridinium was synthesized and identified by NMR spectra and X-ray single crystal
structure analysis from L · CH3SO4 (1L). Through self-assembling reactions, two new CuII/LaIII-organic complexes, [CuL2(SCN)][SCN] · H2O (2Cu) and [LaL2(SO4)Cl2] · (toluene) (3La), have been synthesized and characterized by X-ray crystallography. Structural analysis of 1L revealed that L and HSO4
− coexist in a unit cell. For 2Cu, Cu(II) ion show a five-coordinated structure with a highly compressed square pyramid configuration; For 3La, each La(III) ion has an eight-coordinated structure with a distorted capped pentagonal bipyramidal geometry. It should be
mentioned that supramolecular framework was formed via a number of hydrogen bonding interactions. Here, intramolecular C–H···O
hydrogen bonding interactions stabilized and restricted the distortion between different rings. On the contrary, intermolecular
hydrogen bond, e.g. C–H···O dual hydrogen bond interactions (1L), O5-involving triple C–H···O/O–H···O(N) hydrogen bond (2Cu) and triple C–H···Cl hydrogen bonding(3La), greatly affect geometric distortion between rings from ligand. Finally, we believe that the cooperative effect plays more
important roles in supramolecular self-assembly. 相似文献
14.
Gholam Hossein Shahverdizadeh Ali Morsali 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):694-699
Nano-wires and nano-rods of a new three-dimensional cadmium(II) coordination polymer, {[Cd3(3-pyc)4(NCS)2(H2O)4]·2H2O}
n
(1); 3-Hpyc = 3-pyridinecarboxilic acid, were synthesized by a sonochemical method in two different concetrations. The morphology
of the nano-structures depend strongly on reactants’ concentration. The new nano-structures were characterized by scanning
electron microscopy, X-ray powder diffraction, elemental analyses and IR spectroscopy. Compound 1 was structurally characterized by single-crystal X-ray diffraction and is a three-dimensional polymer with two types of Cd(II)
coordination environments. 相似文献
15.
Li Yan Chuan-Bi Li Dong-Sheng Zhu Lin Xu 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(1):235-243
Two novel metal–organic coordination polymers {[Pb(CIPT)(1,4-BDC)]·2H2O}
n
1 and {[Zn2(IPDT)2(1,4-BDC)2(H2O)].3H2O}
n
2 [CIPT = 2-(3-chlorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline, 1,4-BDC = terephthalic acid, IPDT = 4-(1H-imidazo[4,5-f][1,10]phenanthroline-2-yl)-2,6-dimethoxyphenol]
were obtained from hydrothermal reaction and characterized by elemental analysis, thermogravimetric (TG) analysis, IR and
single-crystal X-ray diffraction. Both of the two coordination polymers exhibit one-dimensional (1D) infinite chain structures
through non-covalent interactions, and the existence of hydrogen bonds interactions lead the 1D chain to 2D layer structures.
It is noteworthy that the existence of hydrogen bonds reinforces the structural stability of the complexes 1 and 2, which can be proved by TG analysis. The photoluminescent study of coordination polymer 1 shows that it exhibits fluorescent emission band at 637 nm, which is red-shifted by 46 nm relative to the free ligand CIPT. 相似文献
16.
?brahim Kani Yilmaz Aksu 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(1):69-77
Two new complexes, [Cd2(4-4′-bpy)2(pa)4]
n
·0.25H2O (1) (pa = phenylacetate), and [Mn(4-4′-bpy)2(pa)(H2O)3]ClO4·2H2O, (2), have been obtained from hydrothermal reaction of Cd(NO3)2·4H2O and Mn(ClO4)2·6H2O with a mixture of the ligands, 2-phenylmalonic acid (2-phmalH2) and 4-4′-bipyridine (4-4′-bpy). The pa is formed in situ by decarboxylation of phenylmalonic acid. These complexes have
been characterized by elemental analysis, FT-IR spectroscopy, thermogravimetric analysis and single-crystal X-Ray diffraction.
The Cd(II) center is seven-coordinate and linked via pa ligands to form a binuclear complex in the asymmetric unit of 1. A ladder-like 1D chain of binuclear units is formed by Cd(II)–N coordination bond through 4-4′-bpy ligands. Complex 2 consists of a mononuclear manganese center based on a distorted octahedral geometry and exhibits a supramolecular structure
containing hydrogen bonds and extensive π···π and C–H···π interactions. 相似文献
17.
Zohreh Rashidi Ranjbar Ali Morsali 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):421-430
A new zinc(II) coordination polymer, {[Zn(bpcdp)2(DMF)4](ClO4)2·(H2O)2}n (1) bpcdp = 2,6-bis(4-pyridinecarboxamide)pyridine has been synthesized and characterized by IR, 1HNMR and 13CNMR spectroscopy. The single crystal X-ray data of compound 1 shows the zinc(II) atom has been considered as octahedral with ZnN2O4 coordination sphere. Two nitrogen atoms of bpcdp ligand and four oxygen atoms of DMF molecules have occupied coordination
sphere around zinc(II) atoms. The prepared zinc(II) coordination polymer grows in three-dimensional network by hydrogen bonding
and π–π stacking interaction. The nanostructure of compound 1 were obtained by sonochemical process and studied by scanning electron microscopy (SEM), X-ray powder diffraction (XRD),
IR and NMR spectroscopy. Thermal stabilities of single crystalline and nano-size samples of compound 1 were studied by thermal gravimetric (TG) and differential thermal analyses (DTA). The ZnO nanoparticles were obtained by
direct calcination of compound 1 at 400 °C and by thermolysis in oleic acid at 200 °C. The obtained zinc(II) oxide nanoparticles were characterized by X-ray
diffraction (XRD) and scanning electron microscopy (SEM). 相似文献
18.
Mojtaba Khanpour Ali Morsali 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(2):360-364
Two new Zn(II) coordination polymers from the ligand, 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene (bpdh), with different anions;
i.e., [Zn(μ-bpdh)(H2O)4](ClO4)2·2bpdh (1) and [Zn(μ-bpdh)(H2O)4](NO3)2·2bpdh (2), were synthesized and characterized by IR spectroscopy, elemental analyses and X-ray crystallography. Compounds 1 and 2 are 1D coordination polymers and the zinc atoms are linked by four oxygen atoms from water molecules and two nitrogen atoms
of bpdh ligands. There are two uncoordinated bpdh ligands that, along with the perchlorate or nitrate anions, form hydrogen
bonds with water molecules. ZnO nanoparticles were obtained by thermolysis of 1–2 in oleic acid at 280 °C in air. The ZnO nanoparticles were characterized by X-ray diffraction and scanning electron microscopy. 相似文献
19.
Maryam Ranjbar ?mer ?elik S. Heydar Mahmoudi Najafi Shabnam Sheshmani Neda Akbari Mobarakeh 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(4):837-844
A new lead(II) coordination polymer, [PbBr2(C9H15N5O)]n (1), where C9H15N5O is (2,4-diamino-6-piperidine-1-yl) pyrimidine N-oxide (minoxidil) is synthesized and characterized. Polymer 1 is synthesized in methanol by sonochemical and hydrothermal methods from lead(II) acetate, KBr and the minoxidil ligand. The crystal structure of [PbBr2(C9H15N5O)]n indicates a syndiotactic coordination polymer. The Pb(II) atom lies on a mirror plane; the mirror plane is perpendicular to the pyrimidine ring bisecting the piperidine ring. N–H···O intramolecular and C–H···Br, N–H···N strong intermolecular interactions were observed. Micro-rods of PbO and nano-plates of PbOHBr were prepared by thermal decomposition of the nano-structured [PbBr2(C9H15N5O)]n as a precursor. Characterization of the products was carried out using X-ray crystallography, elemental analysis, FTIR spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and thermal analysis. The sonochemical method resulted in a significant reduction of reaction time, reaction temperature and particle sizes of the products. 相似文献
20.
Yun-Ming Sun Feng-Ying Dong Da-Qi Wang Yan-Li Wang Yan-Tuan Li Jian-Min Dou 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(1):168-176
A novel cyano-bridged heterotrinuclear FeIII/CoII/FeIII complex, [Co(phen)2][Fe(phen)(CN)4]2·4H2O (1) (phen = 1,10-phenanthroline), has been synthesized under solvothermal conditions, and characterized by elemental analysis,
FI-IR spectrum and single-crystal X-ray diffraction. The structure analysis reveals complex 1 is constructed into a 3D supramolecular architecture through abundant intermolecular non-covalent interactions. According
to the supramolecular self-assembly of complex 1, five types of π–π stacking models of phenanthroline ligands, hydrogen bonds formed by four lattice water molecules, and
C–H···N weak interactions involving cyano groups are all observed. Electronic absorption spectroscopy and fluorescence titration
studies of the interaction between complex 1 and calf thymus DNA are suggestive of an intercalative binding mode with an intrinsic binding constant of 7.95 × 103 M−1 and a linear Stern–Volmer quenching constant of 1.033 × 105 M−1. 相似文献