scholarly journals Syntheses, Crystal Structures and Characterization of Two New Pb(II) and Cu(II) Coordination Polymers Based on 2-(4-Fluorophenyl)-1Himidazo[ 4,5-f][1,10]phenanthroline and Benzenedicarboxylate Ligands

2011 ◽  
Vol 66 (9) ◽  
pp. 899-904
Author(s):  
Zhan-Lin Xu ◽  
Yu He ◽  
Hui-Lian Wang
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Polymers ◽  
Layer Structure ◽  
Three Dimensional ◽  
Chain Structure ◽  
Crystal Data ◽  
Triclinic Space Group ◽  
Space Group ◽  
Π Interactions ◽  
A Chain

Two new coordination polymers, [Pb(L)(1,3-bdc)] ·2.5H2O (1) and [Cu(L)(1,4-bdc)] (2) (L = 2- (4-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline; 1,3-bdc, 1,4-bdc = 1,3- and 1,4-benzenedicarboxylate), have been hydrothermally synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. Crystal data for 1: C54H40F2N8O13Pb2, triclinic, space group P¯1, a = 9.3468(19), b = 9.4607(14), c = 15.581(3) Å , α = 90.44(4), β = 101.13(3), γ = 113.97(3)°, V = 1229.6(4) Å3, Z = 1. Crystal data for 2: C27H15CuFN4O4, triclinic, space group P1¯, a = 9.640(6), b = 10.941(8), c = 11.865(5) Å , α = 62.694(4), β = 69.776(3), γ = 79.915(5)◦, V = 1043.2(11) Å3, Z = 2. In 1, the Pb(II) atoms are bridged by the 1,3-bdc ligands to yield a chain structure. The ligands L are only located on one side of the chain, where π · · ·π interactions among neighboring chains result in a supramolecular ladder, and the O-H· · ·O hydrogen bonding interactions further stabilize this structure. Compound 2 shows a layer structure, with stacking by π-π interactions to give a three-dimensional (3D) supramolecular architecture. N-H· · ·O hydrogen bonding further stabilizes the structure of 2.

Syntheses, Structures and Photoluminescent Properties of Two New Pb(II) and Cd(II) Coordination Polymers Constructed from 1,10-Phenanthroline-derived and 1,4-Naphthalenedicarboxylate Ligands

2012 ◽  
Vol 67 (1) ◽  
pp. 23-28
Author(s):  
Zhi-Guo Kong ◽  
Yu He ◽  
Na Xu ◽  
Jia Guo ◽  
Dan Li
Keyword(s):  
Coordination Polymers ◽  
Layer Structure ◽  
Luminescent Properties ◽  
Chain Structure ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
Hydrothermal Conditions ◽  
Space Group ◽  
Π Interactions ◽  
A Chain

Two new related coordination polymers, namely, [Pb(L)(1,4-ndc)] · 0.5H2O (1) and [Cd(L)(1,4- ndc)] · 0.5H2O (2), where L = 2-(3-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and 1,4- ndc = 1,4-naphthalenedicarboxylate, were synthesized under hydrothermal conditions. Crystal data for 1: C62H36F2N8O9Pb2, monoclinic space group C2/c, a = 15.874(3), b = 19.982(4), c = 16.045(3) Å, β = 94.26(3), V = 5075.3(18) Å3, Z = 4. Crystal data for 2: C62H36Cd2F2N8O9, monoclinic space group P21/n, a = 12.622(2), b = 14.038(3), c = 14.938(3) Å , β = 100.81(2), V = 2600.0(8) Å3, Z = 2. In compound 1, the 1,4-ndc ligands connect the Pb(II) atoms to yield a chain structure. The L ligands are attached on the same side of the chain. The π-π interactions between L ligands of neighboring chains result in a 2D supramolecular architecture of 1. In compound 2, 1,4-ndc ligands link the Cd(II) atoms to generate a layer structure. The L ligands from adjacent layers are paired to furnish strong π-π interactions. Further, these layers are extended into 3D supramolecular architectures through these π-π interactions. The structural differences of 1 and 2 suggest the importance of the metal centers in the construction of the coordination polymers. The luminescent properties of the compounds were also investigated.

Two New Cd(II) and Co(II) Coordination Polymers Based on a 1,10- Phenanthroline Derivative and Tri- or Tetra-Carboxylates: Syntheses, Structures and Photoluminesce

2012 ◽  
Vol 67 (5) ◽  
pp. 459-464 ◽  
Author(s):  
Xiu-Yan Wang ◽  
Yu He ◽  
Fei-Fei Liu
Keyword(s):  
Coordination Polymers ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Triclinic Space Group ◽  
Space Group ◽  
Hydrogen Bonding Interactions ◽  
Physico Chemical ◽  
Supramolecular Networks ◽  
A Chain

Two new coordination polymers constructed with the 1,10-phenanthroline derivative 2-(2-chloro- 6-fluorophenyl)-1H-imidazo[4,5-f][1,10]-phenanthroline (L) and different carboxylates, namely, [Cd2(L)2(1,3,5-BTC)(Cl)]·H2O (1) and [Co2(L)2(1,2,4,5-BTC)(H2O)2] (2), have been synthesized under hydrothermal conditions (1,3,5-BTC = 1,3,5-benzenetricarboxylate anion and 1,2,4,5-BTC = 1,2,4,5-benzenetetracarboxylate anion). Crystal data for 1: C47H25Cd2Cl3F2N8O7, triclinic, space group P¯1, a = 10:1084(5), b = 14:9285(7), c = 15:2930(4)Å , α = 72:1050(10), β = 86:160(2), γ = 79:6000(10)°, V = 2159:88(16) °A3, Z = 2. Crystal data for 2: C24H13ClCoFN4O5, triclinic, space group P1¯, a = 7:4767(15), b = 10:094(2), c = 14:772(3)Å , α = 91:23(3), β = 100:95(3), γ = 106:57(3)°, V = 1045:8(4) Å3, Z = 2. Their crystal structures have been determined by singlecrystal X-ray diffraction analyses, and the compounds further characterized by physico-chemical and spectroscopic methods. In 1, each 1,3,5-BTC anion connects five Cd(II) atoms to form a double chain. These chains are extended into 2D supramolecular networks through μ - μ interactions. N-H...Cl, N - H...O and O - H...N hydrogen bonding interactions further stabilize the network of 1. In 2, each 1,2,4,5-BTC anion bridges four Co(II) atoms to yield a chain. μ-μ interactions among adjacent chains result in a 2D supramolecular architecture.

Two- and three-dimensional coordination polymers based on zinc(II) and furan-2,5-dicarboxylic acid: structure variation due to metal-to-linker ratio

2018 ◽  
Vol 74 (12) ◽  
pp. 1719-1724 ◽  
Author(s):  
Yimin Mao ◽  
Peter Y. Zavalij
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Molar Ratio ◽  
Monoclinic Space Group ◽  
Structure Variation ◽  
Space Group ◽  
Hydrogen Bonding Pattern ◽  
Solvent Molecules ◽  
A Chain

Two ZnII-based coordination polymers (CPs) were synthesized by the hydrothermal method, using Zn(NO3)2·6H2O and furan-2,5-dicarboxylic acid (FDCA) in dimethylformamide (DMF) solvent, at 95 °C. Poly[tetrakis(dimethylazanium) [tetrakis(μ2-furan-2,5-dicarboxylato-κ2 O 2:O 5)dizinc(II)]], {(C2H8N)4[Zn2(C6H2O5)4]} n or {[DMA]4[ZnII 2(FDC)4]} n (DMA = dimethylazanium and FDC = furan-2,5-dicarboxylate), (1), was obtained with a 1:1 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group C2/c. Coordinated by ZnII ions, FDC2− ligands form 21 double-stranded helices propagating along the b axis. The helices are interconnected and extend laterally in the a direction, forming a two-dimensional (2D) sheet-like network. The 2D sheets are stacked along the c direction without interconnections. DMA cations are cocrystallized in (1) and are hydrogen bonded with carboxylate O atoms of the FDC2− ligands. The hydrogen-bonding pattern consists of R 2 2(4) and R 2 2(10) motifs alternating in a chain. Poly[bis(dimethylazanium) [bis(μ4-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5:κO 5)bis(μ3-furan-2,5-dicarboxylato-κO 2:κO 2′:κO 5)dizinc(II)] dimethylformamide 3.08-solvate], {(C2H8N)2[Zn2(C6H2O5)4]·3.08C3H7NO} n or {[DMA]2[ZnII 3(FDC)4]·3.08DMF} n , (2), was obtained with a 1:2 molar ratio of ZnII and FDCA. It crystallized in the monoclinic space group P21/c, forming a three-dimensional network. The pores are filled with DMA cations and DMF solvent molecules.

scholarly journals Crystal structure of bis{N′-[(E)-4-hydroxybenzylidene]pyridine-4-carbohydrazide-κN1}diiodidocadmium methanol disolvate

2017 ◽  
Vol 73 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Farhad Akbari Afkhami ◽  
Harald Krautscheid ◽  
Zeliha Atioğlu ◽  
Mehmet Akkurt
Keyword(s):  
Hydrogen Bonding ◽  
Rotation Axis ◽  
Complex Molecule ◽  
Three Dimensional ◽  
Chain Structure ◽  
Complex Molecules ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network ◽  
Ethanol Solvate ◽  
A Chain

In the title compound, [Cd(C13H11IN3O2)2]·2CH3OH, which crystallizes withZ= 4 in the space groupPbcn, the CdIIatom is located on a twofold rotation axis and coordinated by two I−anions and two N atoms from the pyridine rings of the twoN′-[(E)-4-hydroxybenzylidene]pyridine-4-carbohydrazide ligands. The geometry around the CdIIatom is distorted tetrahedral, with bond angles in the range 94.92 (11)–124.29 (2)°. The iodide anions undergo intermolecular hydrogen-bonding contacts with the C—H groups of the organic ligands of an adjacent complex molecule, generating a chain structure along thebaxis. Furthermore, an extensive series of O—H...O, N—H...O and C—H...O hydrogen-bonding interactions involving both the complex molecules and the ethanol solvate molecules generate a three-dimensional network.

scholarly journals Crystal structures of (±)-(1SR,5SR,6SR,7SR,10SR,11SR,13RS,14SR)-13-hydroxy-7-methoxymethoxy-11,15,18,18-tetramethyl-3-oxo-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-15-en-10-yl benzoate, its 13-epimer and 13-one derivative

2015 ◽  
Vol 71 (5) ◽  
pp. 466-472 ◽  
Author(s):  
Takeshi Oishi ◽  
Keisuke Fukaya ◽  
Yu Yamaguchi ◽  
Tomoya Sugai ◽  
Ami Watanabe ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Chain Structure ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Molecular Conformations ◽  
Π Interactions ◽  
The Core ◽  
Dimensional Network ◽  
The Mean ◽  
A Chain

The title compounds, C29H38O8·0.25C5H12, (A), C29H38O8, (B), and C29H36O8, (C), are tetracyclic benzoates possessing a taxane skeleton with a fused dioxolane ring as the core structure. In the asymmetric unit of (A), there are two independent benzoate molecules (A and A′) and a half molecule of solvent pentane disordered about an inversion center. The molecular conformations of (A), (B) and (C) are similar except for the flexible methoxymethoxy group. The cyclohexane, cyclohexene and central cyclooctane rings adopt chair, half-chair and chair–chair (extended crown) forms, respectively. The dioxolane rings are essentially planar, while the dioxolane ring of A′ is slightly twisted from the mean plane. In the crystal of (A), intermolecular O—H...O, C—H...O and C—H...π interactions link the independent benzoates alternately, forming a chain structure. In the crystals of (B) and (C), molecules are linked through O—H...O and C—H...π interactions, and C—H...O hydrogen bonds, respectively, into similar chains. Further, weak intermolecular C—H...O interactions connect the chains into a three-dimensional network in (A) and a sheet in (B), whereas no other interactions are observed for (C).

Two coordination polymers constructed by 5-[(4-carboxyphenoxy)methyl]benzene-1,3-dicarboxylic acid and 2,2′-bipyridine: syntheses, structures and luminescence properties

2019 ◽  
Vol 75 (12) ◽  
pp. 1562-1568
Author(s):  
Yuan-Chun He ◽  
Li-Yuan Xiao ◽  
Zi-Han Yuan ◽  
Jie Zhang ◽  
Yan Wang ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Supramolecular Structure ◽  
Layer Structure ◽  
Three Dimensional ◽  
Luminescence Spectra ◽  
Hydrothermal Conditions ◽  
Π Interactions ◽  
Methyl Benzene ◽  
State Luminescence

Coordination polymers (CPs) have attracted increasing interest in recent years. In this work, two new CPs, namely poly[[aquabis(2,2′-bipyridine-κ2 N,N′){μ3-5-[(4-carboxylatophenoxy)methyl]benzene-1,3-dicarboxylato-κ4 O 1,O 1′:O 3:O 5}(μ-formato-κ3 O:O,O′)dicadmium(II)] monohydrate], {[Cd2(C16H9O7)(HCO2)(C10H8N2)2(H2O)]·H2O} n (1), and poly[[(2,2′-bipyridine-κ2 N,N′){μ3-5-[(4-carboxylphenoxy)methyl]benzene-1,3-dicarboxylato-κ4 O 1,O 1′:O 3:O 5}manganese(II)] sesquihydrate], {[Mn(C16H10O7)(C10H8N2)]·1.5H2O} n (2), have been prepared using the tricarboxylic acid 5-[(4-carboxyphenoxy)methyl]benzene-1,3-dicarboxylic acid and 2,2′-bipyridine under hydrothermal conditions. CP 1 displays a two-dimensional layer structure which is further extended into a three-dimensional (3D) supramolecular structure via intermolecular π–π interactions, while CP 2 shows a different 3D supramolecular structure extended from one-dimensional ladder chains by intermolecular π–π interactions. In addition, the solid-state luminescence spectra of 1 and 2 were studied at room temperature.

Hydrated metal(II) complexes of N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl) derivatives of glycine, glycylglycine, threonine, serine, valine and methionine: a monomeric complex and coordination polymers in one, two and three dimensions linked by hydrogen bonding

2004 ◽  
Vol 60 (1) ◽  
pp. 46-64 ◽  
Author(s):  
M. Luz Godino Salido ◽  
Paloma Arranz Mascarós ◽  
Rafaél López Garzón ◽  
M. Dolores Gutiérrez Valero ◽  
John N. Low ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Space Group ◽  
One Dimensional ◽  
Rotation Axes ◽  
Group 2 ◽  
Simple Chain ◽  
A Chain

Nine hydrated complexes of Group 2 (alkaline earth) cations with organic ligands which are N-substituted amino acids containing the 6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl group have been structurally characterized. The octahydrated calcium glycinate complex, where the six-coordinate Ca cation lies on an inversion centre in the space group P\bar 1, forms a finite (zero-dimensional) complex. The hexahydrated barium glycinate complex contains eight-coordinate Ba and it is isostructural with the known Sr analogue, and its one-dimensional coordination polymer takes the form of a simple chain. The octahydrated calcium and strontium threonine complexes are isostructural, with eight-coordinate cations lying on twofold rotation axes in the space group C2: the one-dimensional coordination polymers take the form of a chain of spiro-fused rings and a similar chain of spiro-fused rings is found in the heptahydrated barium serine complex, although here the ten-coordinate cation lies in a general position. In the tetrahydrated strontium and barium glycylglycinate complexes, the eight-coordinate cations lie on twofold rotation axes in the space group C2/c, but in the Sr complex the coordination polymer is a chain of spiro-fused rings, while in the Ba complex the coordination polymer forms deeply puckered sheets. There are two types of Ca site in the hexahydrated calcium valine complex: one is eight coordinate and gives rise to a two-dimensional coordination polymer, while the other is seven coordinate forming a finite, zero-dimensional coordination complex. In the heptahydrated barium methionine complex, the coordination polymer is three dimensional. In all of the complexes, the coordination aggregates are further linked by an extensive series of hydrogen bonds.

Neue Koordinationspolymere auf der Basis der Naphthalin-1,4,5,8- tetracarboxylat-hydrate von Ca, Sr und Ba / New Coordination Polymers Based on Naphthalene-1,4,5,8-tetracarboxylate Hydrates of Ca, Sr, and Ba

2006 ◽  
Vol 61 (11) ◽  
pp. 1383-1390 ◽  
Author(s):  
Irena Senkovska
Keyword(s):  
Aqueous Solution ◽  
Oxygen Atom ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Chain Structure ◽  
Coordination Network ◽  
Carboxylate Groups ◽  
Layer Structures ◽  
A Chain ◽  
Oxygen Atoms

Crystals of [Ca(NTC)(H2O)2]·H2O (1) (NTC = naphthalene-1,4,5,8-tetracarboxylate-1,8-monoanhydride) and [Sr2(NTC)2(H2O)8]·H2O (3) were obtained by layering an aqueous solution of sodium naphthalene-1,4,5,8-tetracarboxylate with an aqueous solution of CaCl2 or SrCl2, respectively. Crystals of [Sr(NTC)(H2O)2]·2H2O (2) and [Ba(NTC)(H2O)2] (4) were obtained by gel crystallisation. The NTC in 1 and 2 is tridentate, and in 4 pentadentate, forming bonds to the cations using the oxygen atoms of the carboxylate and one oxygen atom of anhydride groups. In 3 the cations are associated only via the oxygen atoms of carboxylate groups. 1 and 2 have layer structures, 3 has a chain structure, and 4 forms a three-dimensional coordination network. The number of O atoms around the cations is eight for 1, 2 and 4, and nine for 3.

scholarly journals Crystal structure of 3-methylpyridinium picrate: a triclinic polymorph

2015 ◽  
Vol 71 (10) ◽  
pp. 1196-1198 ◽  
Author(s):  
Jeganathan Gomathi ◽  
Doraisamyraja Kalaivani
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Triclinic Space Group ◽  
Space Group ◽  
Π Interactions ◽  
Graph Set ◽  
Pyridinium Cations ◽  
And Inversion ◽  
Molecular Salt

The title molecular salt, C6H8N+·C6H2N3O7−(systematic name: 3-methylpyridinium 2,4,6-trinitrophenolate), crystallizes in the triclinic space groupP-1. The crystal structure of the monoclinic polymorph (space groupP21/n) has been reported [Stilinovic & Kaitner (2011).Cryst. Growth Des.11, 4110–4119]. In the crystal, the anion and cation are linkedviabifurcated N—H...(O,O) hydrogen bonds, enclosing anR12(6) graph-set motif. These units are linkedviaC—H...O hydrogen bonds, forming a three-dimensional framework. Within the framework there are π–π interactions present, involving inversion-related picrate anions and inversion-related pyridinium cations, with inter-centroid distances of 3.7389 (14) and 3.560 (2) Å, respectively.

CuIIand ZnIIβ-diketonate coordination polymers based on pyrimidin-2-amine, pyrazine and 1,2-bis(4-pyridyl)ethane

2016 ◽  
Vol 72 (6) ◽  
pp. 828-835 ◽  
Author(s):  
Franc Perdih
Keyword(s):  
Single Crystal ◽  
Coordination Polymers ◽  
Monoclinic Space Group ◽  
Triclinic Space Group ◽  
Metal Centers ◽  
Space Group ◽  
Π Interactions ◽  
Nitrogen Ligands ◽  
Polymeric Chains ◽  
Solid State Structures

Copper(II) and zinc(II) bis(4,4,4-trifluoro-1-phenylbutane-1,3-dionato) compounds with pyrimidin-2-amine (pyr2a), pyrazine (pyz) and 1,2-bis(4-pyridyl)ethane (dpet) were prepared and solid-state structures of coordination polymers [M(tfpb)2(pyr2a)]∞[M= Cu (1), Zn (2); tfpb = 4,4,4-trifluoro-1-phenylbutane-1,3-dionate], [M(tfpb)2(pyz)]∞[M= Cu (3), Zn (4a, 4b)] and [Cu(tfpb)2(dpet)]∞(5), respectively, were determined by single-crystal X-ray analysis. The coordination of metal centers in all compounds is octahedral with nitrogen ligands occupying the axial positions. Compound (1) crystallizes in the triclinic space group P\bar 1, whereas (2) crystallizes in the monoclinic space groupP2/n. Differences are due to the different orientation of adjacentM(tfpb)2units, whereas the orientation of pyrimidin-2-amine is the same in both compounds. Polymeric chains in (1) and (2) contain intramolecular N—H...O hydrogen bonding between amino and carbonyl groups. Room-temperature structures (3) and (4a) are isomorphous adopting the monoclinic space groupC2/m; however, on cooling crystals (4a) to 150 K a single-crystal-to-single-crystal transformation to (4b) possessing the triclinic space group P\bar 1 was observed. Compound (5) crystallizes in the triclinic space group P\bar 1 and contains a parallel aggregation of chains in contrast to the known structure of the non-fluorinated benzoylacetonato ligand, where chains aggregate in a perpendicular fashion. In the compounds studied intramolecular C—H...O and/or C—H...F interactions are present. The neighboring chains are linked by π...π interactions and in some compounds also by C—H...π interactions [(1), (4b), (5)].

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