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.

Metal Ion-Driven Assembly of Two New Coordination Polymers Constructed by Asymmetric Tricarboxylate and Imidazole-Containing Ligands: Syntheses, Crystal Structures, and Luminescent Properties

2015 ◽  
Vol 68 (1) ◽  
pp. 121 ◽  
Author(s):  
Wenlong Liu ◽  
Xueying Wang ◽  
Mengqiang Wu ◽  
Bing Wang
Keyword(s):  
Infrared Spectroscopy ◽  
Coordination Polymers ◽  
Metal Ion ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Dimensional Structure ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Dimethyl Benzene

Two new coordination polymers, namely, {[Cd3(bpt)2(bimb)2]·2(H2O)}n (1) and [Zn3(bpt)2(bimb)2]n (2) (bpt = biphenyl-3,4′,5-tricarboxylate, bimb = 1,4-bis(1-imidazol-yl)-2,5-dimethyl benzene), have been obtained under hydrothermal conditions. Their structures have been determined by single-crystal X-ray diffraction analysis and further characterised by elemental analysis and infrared spectroscopy. Complex 1 exhibits a trinodal (4,4,4)-connected topology with Schläfli symbol of (4.62.83)4.(64.82). Complex 2 is also a three-dimensional structure and displays a (3,4,6)-connected topology with Schläfli symbol of (4.62)2.(42.66.85.102).(64.82). It is shown that the asymmetrically tricarboxylate can bear diverse structures regulated by metal ions. The photoluminescence behaviours of compounds 1 and 2 were also discussed.

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.

One-dimensional copper(II) coordination polymers based on 1,3-bis(pyridin-4-yl)propane and diimine ligands

2019 ◽  
Vol 75 (5) ◽  
pp. 496-503 ◽  
Author(s):  
Satish Shantaram Bhat ◽  
Naveen Shivalingegowda ◽  
Vidyanand Krishna Revankar ◽  
Vitthal Ajinath Kawade ◽  
Ray J. Butcher ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Molar Ratio ◽  
Nitrate Anion ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
X Ray ◽  
Bridging Ligand ◽  
Diimine Ligands ◽  
Dimensional Network

Two one-dimensional (1D) coordination polymers (CPs), namely catena-poly[[[aqua(2,2′-bipyridine-κ2 N,N′)(nitrato-κO)copper(II)]-μ-1,3-bis(pyridin-4-yl)propane-κ2 N:N′] nitrate], {[Cu(NO3)(C10H8N2)(C13H14N2)(H2O)]·NO3} n (1), and catena-poly[[[aqua(nitrato-κO)(1,10-phenanthroline-κ2 N,N′)copper(II)]-μ-1,3-bis(pyridin-4-yl)propane-κ2 N:N′] nitrate], {[Cu(NO3)(C12H8N2)(C13H14N2)(H2O)]·NO3} n (2), have been synthesized using [Cu(NO3)(NN)(H2O)2]NO3, where NN = 2,2′-bipyridine (bpy) or 1,10-phenanthroline (phen), as a linker in a 1:1 molar ratio. The CPs were characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis and single-crystal X-ray structure determination. The 1,3-bis(pyridin-4-yl)propane (dpp) ligand acts as a bridging ligand, leading to the formation of a 1D polymer. The octahedral coordination sphere around copper consists of two N atoms from bpy for 1 or phen for 2, two N atoms from dpp, one O atom from water and one O atom from a coordinated nitrate anion. Each structure contains two crystallographically independent chains in the asymmetric unit and the chains are linked via hydrogen bonds into a three-dimensional network.

Three one-dimensional coordination polymers based on 1,1′-bis(pyridin-4-ylmethyl)-2,2′-bi-1H-benzimidazole and HgX2(X= Cl, Br and I)

2013 ◽  
Vol 70 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Ai-Guo Li ◽  
Qi-Kui Liu ◽  
Yan-An Li ◽  
Zhi-Xian Liu ◽  
Yu-Bin Dong
Keyword(s):  
Coordination Polymers ◽  
Free Ligand ◽  
Organic Ligand ◽  
Coordination Complexes ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Compound I ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Dimensional Network

A new 2,2′-bi-1H-benzimidazole bridging organic ligand, namely 1,1′-bis(pyridin-4-ylmethyl)-2,2′-bi-1H-benzimidazole, C26H20N6,Lor (I), has been synthesized and used to create three new one-dimensional coordination polymers,viz.catena-poly[[dichloridomercury(II)]-μ-1,1′-bis(pyridin-4-ylmethyl)-2,2′-bi-1H-benzimidazole], [HgCl2(C26H20N6)]n, (II), and the bromido, [HgBr2(C26H20N6)]n, (III), and iodido, [HgI2(C26H20N6)]n, (IV), analogues. Free ligandLcrystallizes with two symmetry-independent half-molecules in the asymmetric unit and eachLmolecule resides on a crytallographic inversion centre. In structures (II)–(IV), theLligand is also positioned on a crystallographic inversion centre, whereas the Hg centre resides on a crystallographic twofold axis. Compound (I) adopts ananticonformation in the solid state and forms a two-dimensional network in the crystallographicbcplaneviaπ–π and C—H...π interactions. The three HgIIcoordination complexes, (II)–(IV), have one-dimensional zigzag chains composed ofLand HgX2(X= Cl, Br and I), and the HgIIcentres are in a distorted tetrahedral [HgX2N2] coordination geometry. Complexes (III) and (IV) are isomorphous, whereas complex (II) displays an interesting conformational difference from the others,i.e.a twist in the flexible bridging ligand.

Three isomorphous two-dimensional coordination polymers generated from a benzimidazole bridging ligand and ZnX2(X= Cl, Br and I)

2013 ◽  
Vol 69 (4) ◽  
pp. 367-371
Author(s):  
Yue-Feng Zhang ◽  
Jian-Ping Ma ◽  
Qi-Kui Liu ◽  
Yu-Bin Dong
Keyword(s):  
Solid State ◽  
Benzoic Acid ◽  
Coordination Polymers ◽  
Room Temperature ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Red Shift ◽  
Two Dimensional ◽  
Π Interactions ◽  
Bridging Ligand

A novel bridging asymmetric benzimidazole ligand, 4-{2-[3-(pyridin-4-yl)phenyl]-1H-benzimidazol-1-ylmethyl}benzoic acid, was used to construct three isomorphous two-dimensional coordination polymers, namelycatena-poly[chlorido(μ3-4-{2-[3-(pyridin-4-yl)phenyl]-1H-benzimidazol-1-ylmethyl}benzoato)zinc(II)], [Zn(C26H18N3O2)Cl]n, (I), and the bromide, (II), and iodide, (III), analogues. Neighbouring two-dimensional networks are stacked into three-dimensional frameworksviainterlayer π–π interactions. The luminescent properties of (I)–(III) were investigated and they display an obvious red-shift in the solid state at room temperature.

Poly[bis(μ-5-iodoisophthalato)(methanol)dilead(II)] exhibiting a novel centrosymmetric rhombus-shaped I4unit

2013 ◽  
Vol 69 (5) ◽  
pp. 494-497 ◽  
Author(s):  
Shao-Hua Luo
Keyword(s):  
Hydrogen Bond ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Methanol Molecule ◽  
Dimensional Structure ◽  
Asymmetric Unit ◽  
Aromatic Rings ◽  
One Dimensional ◽  
Carboxylate Groups

The asymmetric unit of the title compound, [Pb2(C8H3IO4)2(CH4O)]n, contains two PbIIatoms, two 5-iodoisophthalate (5-IIP2−) ligands and one coordinated methanol molecule. One Pb atom is eight-coordinated, surrounded by seven carboxylate O atoms from five 5-IIP2−ligands and one O atom from the terminal methanol ligand. The other Pb atom is seven-coordinated in a hemidirected geometry, surrounded by seven carboxylate O atoms from five 5-IIP2−ligands. Both Pb atoms are connected by carboxylate groups to form a one-dimensional infinite rod along theaaxis; neighbouring rods are further linked by the aromatic rings of 5-IIP2−to generate the final three-dimensional structure with channels in theadirection. An O—H...O hydrogen bond between the methanol ligand and one of the carboxylate groups of a 5-IIP2−ligand stablizes the three-dimensional framework. Interestingly, a centrosymmetric rhombus-shaped I4unit is formed by four 5-IIP2−ligands, with I...I distances of 3.8841 (8) and 3.9204 (8) Å.

Two one-dimensional coordination polymers generated from a new benzimidazole bridging ligand and CdX2(X= Br and I)

2013 ◽  
Vol 69 (5) ◽  
pp. 476-479 ◽  
Author(s):  
Yue-Feng Zhang ◽  
Jian-Ping Ma ◽  
Qi-Kui Liu ◽  
Yu-Bin Dong
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
The Novel ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
Π Interactions ◽  
Solvent Water ◽  
Bridging Ligand ◽  
Dimensional Network

The novel asymmetric bridging ligand 1-[(pyridin-3-yl)methyl]-2-[4-(pyridin-3-yl)phenyl]-1H-benzimidazole (L) has been used to construct the coordination polymerscatena-poly[[[dibromidocadmium(II)]-μ3-1-[(pyridin-3-yl)methyl]-2-[4-(pyridin-3-yl)phenyl]-1H-benzimidazole] monohydrate], {[CdBr2(C24H18N4)]·H2O}n, (I), andcatena-poly[[diiodidocadmium(II)]-μ3-1-[(pyridin-3-yl)methyl]-2-[4-(pyridin-3-yl)phenyl]-1H-benzimidazole], [CdI2(C24H18N4)]n, (II). Compounds (I) and (II) are closely related one-dimensional polymers based on 16- and 20-membered macrocycles along the chains, but they are not isomorphous. The chains are crosslinked into a two-dimensional networkviahydrogen bonds and π–π interactions in (I), and into a three-dimensional framework through π–π interactions in (II). One well-ordered solvent water molecule per asymmetric unit is included in (I) and forms O...Br hydrogen bonds.

Synthesis, structure, and fluorescence properties of two metal-organic complexes based on a tripodal carboxamide-containing ligand

2020 ◽  
Vol 44 (7-8) ◽  
pp. 453-459
Author(s):  
Yan Wang ◽  
Xiner Xu ◽  
Yong Zhao ◽  
Hai Yu ◽  
Yanyan Zhang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Luminescent Properties ◽  
Dimensional Structure ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
Hydrogen Bond Interactions ◽  
Organic Complexes ◽  
Metal Organic ◽  
Complex Features

Two novel ZnII complexes based on a tripodal carboxamide-containing ligand, [Formula: see text] and [Formula: see text] (where LL-2 = N′, N″, N′″-tris(pyrid-2-ylmethyl)-1,3,5-benzenetricarboxamide) are synthesized and structurally characterized. The first complex is a zero-dimensional structure which was further connected into a three-dimensional structure via hydrogen bond interactions, while the second complex features a one-dimensional tube-like structure, where the structural diversities were mainly caused by the different anions. The solid-state luminescent properties of the complexes were investigated and powder X-ray diffraction and thermal gravimetric analysis were performed.

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