Coordination Polymers with a Bulky Perylene-Based Tetracarboxylate Ligand: Syntheses, Crystal Structures, and Luminescent Properties

2010 ◽  
Vol 63 (3) ◽  
pp. 463 ◽  
Author(s):  
Chun-Sen Liu ◽  
Min Hu ◽  
Song-Tao Ma ◽  
Qiang Zhang ◽  
Li-Ming Zhou ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Supramolecular Interactions ◽  
Polymeric Chain ◽  
Stacking Interactions ◽  
One Dimensional ◽  
Π Stacking ◽  
Higher Dimensional ◽  
Interchain Interactions

To explore the coordination possibilities of perylene-based ligands with a larger conjugated π-system, four ZnII, MnII, and CoII coordination polymers with perylene-3,4,9,10-tetracarboxylate (ptc) and the chelating 1,10-phenanthroline (phen) ligands were synthesized and characterized: {[Zn2(ptc)(phen)2](H2O)10}∞ (1), {[Zn3(ptc)(OH)2(phen)2](H2O)3}∞ (2), {[Mn(ptc)0.5(phen)(H2O)2](H2O)1.5}∞ (3), and {[Co(ptc)0.5(phen)(H2O)2](H2O)2.5}∞ (4). Structural analysis reveals that complexes 1 and 2 both take one-dimensional polymeric chain structures with dinuclear and trinuclear units as nodes, respectively, which are further extended via the accessorial secondary interchain interactions, such as C–H···O H-bonding or aromatic π···π stacking interactions, to give rise to the relevant higher-dimensional frameworks. Compound 3 has a two-dimensional sheet structure that is further assembled to form a three-dimensional framework by interlayer π···π stacking interactions. Complex 4 is a one-dimensional ribbon-like array structure that is interlinked by the co-effects of intermolecular π···π stacking and C–H···π supramolecular interactions, resulting in a higher-dimensional framework from the different crystallographic directions. Moreover, complexes 1–4 exhibit strong solid-state luminescence emissions at room temperature, which mainly originate from intraligand π→π* transitions of ptc.

scholarly journals (E)-4-Methyl-N′-[(4-oxo-4H-chromen-3-yl)methylidene]benzohydrazide

2014 ◽  
Vol 70 (5) ◽  
pp. o565-o565 ◽  
Author(s):  
Yoshinobu Ishikawa ◽  
Kohzoh Watanabe
Keyword(s):  
Benzene Ring ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
One Dimensional ◽  
Π Stacking ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Group Centroid ◽  
Centrosymmetric Dimers

In the title chromone-tethered benzohydrazide derivative, C18H14N2O3, the 4H-chromen-4-one and the –CH=N–NH–CO– units are each essentially planar, with the largest deviations from thei planes being 0.052 (2) and 0.003 (2) Å, respectively. The dihedral angles between the 4H-chromen-4-one and the –CH=N–NH–CO– units, the 4H-chromen-4-one unit and the benzene ring of the 4-tolyl group, and the benzene ring of the 4-tolyl group and the –CH=N–NH–CO– unit are 8.09 (7), 9.94 (5) and 17.97 (8)°, respectively. In the crystal, the molecules form two types of centrosymmetric dimers: one by N—H...O hydrogen bonds and the other by π–π stacking interactions between the 4H-chromen-4-one unit and the 4-tolyl group [centroid–centroid distance = 3.641 (5) Å]. These dimers form one-dimensional assemblies extending along thea-axis direction. Additional π–π stacking interactions between two 4H-chromen-4-one units [centroid–centroid distance = 3.591 (5) Å] and two 4-tolyl groups [centroid–centroid distance = 3.792 (5) Å] organize the molecules into a three-dimensional network.

[2,5-Bis(2,2′-bipyridyl-6-yl)-3,4-diazahexa-2,4-diene]dichloridomanganese(II): from a mononuclear compound to a three-dimensional supramolecular framework through C—H...Cl hydrogen bonds and π–π stacking interactions

2014 ◽  
Vol 70 (7) ◽  
pp. 718-721
Author(s):  
Zhengliang Lu ◽  
Yuanchao Zhao ◽  
Baolian Chen ◽  
Ximing Huang ◽  
Chunhua Fan
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Dimensional Chain ◽  
Supramolecular Framework ◽  
One Dimensional ◽  
Pyramidal Geometry ◽  
Π Stacking ◽  
Square Pyramidal Geometry ◽  
Multifunctional Ligand

The title compound, [MnCl2(C24H20N6)], has been synthesized and characterized based on the multifunctional ligand 2,5-bis(2,2′-bipyridyl-6-yl)-3,4-diazahexa-2,4-diene (L). The MnIIcentre is five-coordinate with an approximately square-pyramidal geometry. TheLligand acts as a tridendate chelating ligand. The mononuclear molecules are bridged into a one-dimensional chain by two C—H...Cl hydrogen bonds. These chains are assembled into a two-dimensional layer through π–π stacking interactions between adjacent uncoordinated bipyridyl groups. Furthermore, a three-dimensional supramolecular framework is attained through π–π stacking interactions between adjacent coordinated bipyridyl groups.

Two different anionic manganese(II) coordination polymers constructed through dicyanamide coordination bridges

2015 ◽  
Vol 71 (10) ◽  
pp. 850-855 ◽  
Author(s):  
Hui-Ting Wang
Keyword(s):  
Coordination Polymers ◽  
Layer Structure ◽  
Three Dimensional ◽  
Polymeric Chain ◽  
One Dimensional ◽  
Hydrogen Bonding Interactions ◽  
The One ◽  
Hybrid Coordination ◽  
Metal Coordination Polymers ◽  
Anionic Framework

In order to explore new metal coordination polymers and to search for new types of ferroelectrics among hybrid coordination polymers, two manganese dicyanamide complexes, poly[tetramethylammonium [di-μ3-dicyanamido-κ6N1:N3:N5-tri-μ2-dicyanamido-κ6N1:N5-dimanganese(II)]], {[(CH3)4N][Mn2(NCNCN)5]}n, (I), andcatena-poly[bis(butyltriphenylphosphonium) [[(dicyanamido-κN1)manganese(II)]-di-μ2-dicyanamido-κ4N1:N5]], {[(C4H9)(C6H5)3P]2[Mn(NCNCN)4]}n, (II), were synthesized in aqueous solution. In (I), one MnIIcation is octahedrally coordinated by six nitrile N atoms from six anionic dicyanamide (dca) ligands, while the second MnIIcation is coordinated by four nitrile N atoms and two amide N atoms from six anionic dca ligands. Neighbouring MnIIcations are linked together by μ-1,5- and μ-1,3,5-bridging dca anions to form a three-dimensional polymeric structure. The anionic framework exhibits a solvent-accessible void of 289.8 Å3, amounting to 28.0% of the total unit-cell volume. Each of the cavities in the network is occupied by only one tetramethylammonium cation. In (II), each MnIIcation is octahedrally coordinated by six nitrile N atoms from six dca ligands. Neighbouring MnIIcations are linked together by double dca bridges to form a one-dimensional polymeric chain, and C—H...N hydrogen-bonding interactions are involved in the formation of the one-dimensional layer structure.

One- and two-dimensional CdIIcoordination polymers constructed from 2-(2-methyl-1H-benzimidazol-1-yl)acetate ligands

2014 ◽  
Vol 70 (10) ◽  
pp. 992-997 ◽  
Author(s):  
Qiang Li ◽  
Hui-Ting Wang ◽  
Qiong Ye
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
The Other ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Supramolecular Framework ◽  
Π Stacking ◽  
The One ◽  
Solvothermal Conditions ◽  
Mode A

The one- and two-dimensional polymorphic cadmium polycarboxylate coordination polymers,catena-poly[bis[μ2-2-(2-methyl-1H-benzimidazol-1-yl)acetato-κ3N3:O,O′]cadmium(II)], [Cd(C10H9N2O2)2]n, and poly[bis[μ2-2-(2-methyl-1H-benzimidazol-1-yl)acetato-κ3N3:O,O′]cadmium(II)], also [Cd(C10H9N2O2)2]n, were prepared under solvothermal conditions. In each structure, each CdIIatom is coordinated by four O atoms and two N atoms from four different ligands. In the former structure, two crystallographically independent CdIIatoms are located on twofold symmetry axes and doubly bridged in a μ2-N:O,O′-mode by the ligands into correspondingly independent chains that run in the [100] and [010] directions. Chains containing crystallographically related CdIIatoms are linked into sheetsviaπ–π stacking interactions. Sheets containing one of the distinct types of CdIIatom are stacked perpendicular to [001] and alternate with sheets containing the other type of CdIIatom. The second complex is a two-dimensional homometallic CdII(4,4) net structure in which each CdIIatom is singly bridged to four neighbouring CdIIatoms by four ligands also acting in a μ2-N:O,O′-mode. A square-grid network results and the three-dimensional supramolecular framework is completed by π–π stacking interactions between the aromatic ring systems.

One-dimensional coordination polymers generated from a new triazole bridging ligand and HgX2(X= Cl, Br and I): characterization and luminescent properties

2012 ◽  
Vol 68 (6) ◽  
pp. m147-m151 ◽  
Author(s):  
Na Qin ◽  
Chao-Wei Zhao ◽  
Jian-Ping Ma ◽  
Qi-Kui Liu ◽  
Yu-Bin Dong
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Coordination Complexes ◽  
The Other ◽  
Tridentate Ligand ◽  
Dimensional Structure ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Solvent Molecules

The new 4-amino-1,2,4-triazole asymmetric bridging ligand 4-amino-5-(pyridin-3-yl)-3-[4-(pyridin-4-yl)phenyl]-4H-1,2,4-triazole (L) has been used to generate three novel isomorphic one-dimensional coordination polymers,viz. catena-poly[[tris[dichloridomercury(II)]-bis{μ3-4-amino-5-(pyridin-3-yl)-3-[4-(pyridin-4-yl)phenyl]-4H-1,2,4-triazole}] acetonitrile monosolvate], {[Hg3Cl6(C18H14N6)2]·CH3CN}n, (I), and the bromido, {[Hg3Br6(C18H14N6)2]·CH3CN}n, (II), and iodido, {[Hg3I6(C18H14N6)2]·CH3CN}n, (III), analogs. The asymmetric ligand acts as a tridentate ligand to coordinate the three different HgIIcenters (two of which are symmetry-related). Two ligands and two symmetry-related HgIIcenters form centrosymmetric rectangular units which are linked into one-dimensional chainsviathe other unique Hg atoms, which sit on mirror planes. The chains are elaborated into a three-dimensional structureviainterchain hydrogen bonds. The acetonitrile solvent molecules are located in ellipsoidal cavities. The luminescent character of these three coordination complexes was investigated in the solid state.

Ethylenediammonium dichloride bis(1,10-phenanthroline) tetrahydrate

2006 ◽  
Vol 62 (7) ◽  
pp. o2797-o2799
Author(s):  
Zi-Lu Chen ◽  
Yu-Zhen Zhang ◽  
Fu-Pei Liang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
One Dimensional ◽  
Compound C ◽  
Π Stacking

The title compound, C2H10N2 2+·2Cl−·2C12H8N2·4H2O, has an inversion centre located midway between the two C atoms of the ethylenediammonium cation. The 1,10-phenanthroline molecules stack along the a axis, and are linked by π–π stacking interactions to form one-dimensional chains. These are bridged by ethylenediammonium cations, via hydrogen bonds, forming two-dimensional supramolecular sheets parallel to the ac plane. Hydrogen bonds to chloride anions and water molecules connect these two-dimensional sheets, resulting in the formation of a three-dimensional supramolecular network.

Copper(II) Complexes with cis-Epoxysuccinate Ligand: Syntheses, Crystal Structures, and Magnetic Properties

2011 ◽  
Vol 64 (2) ◽  
pp. 217 ◽  
Author(s):  
Shao-Ming Fang ◽  
E. Carolina Sañudo ◽  
Min Hu ◽  
Qiang Zhang ◽  
Li-Ming Zhou ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Measurements ◽  
Three Dimensional ◽  
Magnetic Coupling ◽  
Supramolecular Interactions ◽  
Stacking Interactions ◽  
Ferromagnetic Coupling ◽  
Two Dimensional ◽  
Structural Comparison ◽  
Higher Dimensional

Three CuII complexes with cis-epoxysuccinate ligand were synthesized and structurally characterized: [Cu(ces)(phen)]2 (1), [Cu(ces)(bpy)]2 (2), and {[Cu2(ces)(pp)2(CH3OH)]}∞ (3), (ces = cis-epoxysuccinate, phen = 1,10-phenanthroline, bpy = 2,2′-bipyridine, and pp = 3-(2-pyridyl)pyrazole with pyrazolyl N-donor deprotonated). Structural analysis reveals that both 1 and 2 have the very similar dinuclear units that are extended by the intermolecular supramolecular interactions, such as C–H⋯O, C–H⋯π, and aromatic π⋯π stacking interactions, to give rise to the higher-dimensional frameworks. Complex 3 has a two-dimensional (2D) layered structure that is further assembled to form a three-dimensional framework by the inter-layer C–H⋯O hydrogen-bonding and C–H⋯π interactions. A structural comparison with those of our previous work in the absence of auxiliary co-ligand suggests that the introduction of 2,2′-bipyridyl-like molecules plays an important role in constructing the final structures of 1–3. Magnetic measurements demonstrate that 1 and 2 exhibit ferromagnetic coupling with the corresponding J values of 1.8 cm–1 for 1 and 1.5 cm–1 for 2, whereas 3 shows more complicated magnetic coupling.

Emissive and birefringent Hg(CN)2-based coordination polymer materials with very distorted coordination geometries

2018 ◽  
Vol 96 (2) ◽  
pp. 226-234 ◽  
Author(s):  
David Guan ◽  
John R. Thompson ◽  
Daniel B. Leznoff
Keyword(s):  
Optical Properties ◽  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Coordination Polymers ◽  
Polymer Materials ◽  
Stacking Interactions ◽  
One Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking ◽  
New Compounds

New compounds and coordination polymers with highly polarizable metals (M = Hg, Pb) and 2,2′;6′2′-terpyridine (terpy) and 2,6-bis(benzimidazol-2-yl)pyridine (bbp) ligands have been synthesized and characterized for their photo-physical and optical properties. Hg(L)(CN)2 (L = terpy, bbp) exhibit π-stacking interactions, which form a supramolecular alignment of the planar terpy and bbp units. Pb(terpy)X2[Hg(CN)2]0.5 (X = Cl, Br) generate one-dimensional coordination polymers through bridging Hg(CN)2 linkers and hydrogen-bonding interactions. All of the metal centres have very distorted coordination geometries. Hg(L)(CN)2 (L = terpy, bbp) and Pb(terpy)Br2[Hg(CN)2]0.5 show terpy or bbp based emission. The materials are very birefringent, with Δn ranging from 0.37(2) to 0.45(2). The magnitude of the observed birefringence depends on the orientation of the highly polarizable terpy and bbp units in relation to the viewing axis of the crystals. These materials represent rare examples of multifunctional emissive and birefringent systems.

scholarly journals Crystal structures ofN-(3-fluorobenzoyl)benzenesulfonamide andN-(3-fluorobenzoyl)-4-methylbenzenesulfonamide

2016 ◽  
Vol 72 (4) ◽  
pp. 428-431
Author(s):  
P. A. Suchetan ◽  
S. Naveen ◽  
N. K. Lokanath ◽  
H. N. Lakshmikantha ◽  
K. S. Srivishnu ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
One Dimensional ◽  
Π Interactions ◽  
Π Stacking ◽  
Benzene Rings

The crystal structures of twoN-(arylsulfonyl)arylamides, namelyN-(3-fluorobenzoyl)benzenesulfonamide, C13H10FNO3S, (I), andN-(3-fluorobenzoyl)-4-methylbenzenesulfonamide, C14H12FNO3S, (II), are described and compared with related structures. The dihedral angle between the benzene rings is 82.73 (10)° in (I) compared to 72.60 (12)° in (II). In the crystal of (I), the molecules are linked by C—H...O and C—H...π interactions, resulting in a three-dimensional grid-like architecture, while C—H...O interactions lead to one-dimensional ribbons in (II). The crystals of both (I) and (II) feature strong but non-structure-directing N—H...O hydrogen bonds withR22(8) ring motifs. The structure of (I) also features π–π stacking interactions.

Controllable assembly of a three-dimensional metal–organic supramolecular framework displaying hydrogen-bonding and π–π stacking interactions

2014 ◽  
Vol 70 (7) ◽  
pp. 722-725 ◽  
Author(s):  
Hua Cai ◽  
Yan-Ling Xiao ◽  
Ying Guo ◽  
Jian-Gang Li
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
Stacking Interactions ◽  
Hydrothermal Conditions ◽  
Structural Units ◽  
One Dimensional ◽  
Π Stacking ◽  
Metal Organic ◽  
The One

The complex poly[[aqua(μ2-phthalato-κ2O1:O2){μ3-2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetato-κ4N2,N3:O:O′}{μ2-2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetato-κ3N2,N3:O}dizinc(II)] dihydrate], {[Zn2(C10H8N3O2)2(C8H4O4)(H2O)]·2H2O}n, has been prepared by solvothermal reaction of 2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetonitrile (PPAN) with zinc(II). Under hydrothermal conditions, PPAN is hydrolyzed to 2-[3-(pyridin-2-yl)-1H-pyrazol-1-yl]acetate (PPAA−). The structure determination reveals that the complex is a one-dimensional double chain containing cationic [Zn4(PPAA)4]4+structural units, which are further extended by bridging phthalate ligands. The one-dimensional chains are extended into a three-dimensional supramolecular architectureviahydrogen-bonding and π–π stacking interactions.

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