A novel two-dimensional cobalt(II) complex composed of one-dimensional twisted pair-like chains: poly[[tetraaquabis(μ3-pyridine-2,5-dicarboxylato-κ4N,O2:O5:O5′)dicobalt(II)] dihydrate]

2014 ◽  
Vol 70 (3) ◽  
pp. 302-305
Author(s):  
Qing-Biao Hou ◽  
Li-Juan Chen ◽  
Jing Guo ◽  
Shen Lin
Keyword(s):  
Layer Structure ◽  
Three Dimensional ◽  
Carboxylate Group ◽  
Two Dimensional ◽  
Twisted Pair ◽  
One Dimensional ◽  
Dimensional Network ◽  
Solvent Molecules ◽  
Neutral Polymer ◽  
Interlamellar Region

A novel neutral polymer, {[Co2(C7H3NO4)2(H2O)4]·2H2O}n, was hydrothermally synthesized using pyridine-2,5-dicarboxylate (2,5-PDC2−) as the organic linker. It features a two-dimensional layer structure constructed from one-dimensional {[Co(2,5-PDC)2]2−}nchains interlinked by [Co(H2O)4]+units. The two CoIIcations occupy special positions, sitting on inversion centres. Each 2,5-PDC2−anion chelates to one CoIIcationviathe pyridine N atom and an O atom of the adjacent carboxylate group, and links to two other CoIIcations in a bridging modeviathe O atoms of the other carboxylate group. In this way, the 2,5-PDC2−ligand connects three neighbouring CoIIcentres to form a two-dimensional network. The two-dimensional undulating layers are linked by extensive hydrogen bonds to form a three-dimensional supramolecular structure, with the uncoordinated solvent molecules occupying the interlamellar region.

N—H...S and C—H...S hydrogen bonds in two tetraalkylammonium dithiobiurea(1–) inclusion compounds

2015 ◽  
Vol 71 (4) ◽  
pp. 242-246 ◽  
Author(s):  
Hao Guo ◽  
Jinfeng Wu
Keyword(s):  
Hydrogen Bonds ◽  
Network Structure ◽  
Inclusion Compounds ◽  
Layer Structure ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Host Molecule ◽  
One Dimensional ◽  
Dimensional Network ◽  
Hydrogen Bonded

Two inclusion compounds of dithiobiurea and tetrapropylammonium and tetrabutylammonium are characterized and reported, namely tetrapropylammonium carbamothioyl(carbamothioylamino)azanide, C12H28N+·C2H5N4S2−, (1), and tetrabutylammonium carbamothioyl(carbamothioylamino)azanide, C16H36N+·C2H5N4S2−, (2). The results show that in (1), the dithiobiurea anion forms a dimerviaN—H...N hydrogen bonds and the dimers are connected into wide hydrogen-bonded ribbons. The guest tetrapropylammonium cation changes its character to become the host molecule, generating pseudo-channels containing the aforementioned ribbons by C—H...S contacts, yielding the three-dimensional network structure. In comparison, in (2), the dithiobiurea anions are linkedviaN—H...S interactions, producing one-dimensional chains which pack to generate two-dimensional hydrogen-bonded layers. These layers accommodate the guest tetrabutylammonium cations, resulting in a sandwich-like layer structure with host–guest C—H...S contacts.

Cocrystals of 2,6-dichloroaniline and 2,6-dichlorophenol plus three new pseudopolymorphs of their coformers

2015 ◽  
Vol 71 (9) ◽  
pp. 804-813
Author(s):  
Valeska Gerhardt ◽  
Michael Bolte
Keyword(s):  
Crystal Packing ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Dimensional Network ◽  
Solvent Molecules ◽  
Dimensional Crystal

The structures of cocrystals of 2,6-dichlorophenol with 2,4-diamino-6-methyl-1,3,5-triazine, C6H4Cl2O·C4H7N5, (III), and 2,6-dichloroaniline with 2,6-diaminopyrimidin-4(3H)-one andN,N-dimethylacetamide, C6H5Cl2N·C4H6N4O·C4H9NO, (V), plus three new pseudopolymorphs of their coformers, namely 2,4-diamino-6-methyl-1,3,5-triazine–N,N-dimethylacetamide (1/1), C4H7N5·C4H9NO, (I), 2,4-diamino-6-methyl-1,3,5-triazine–N-methylpyrrolidin-2-one (1/1), C4H7N5·C5H9NO, (II), and 6-aminoisocytosine–N-methylpyrrolidin-2-one (1/1), C4H6N4O·C5H9NO, (IV), are reported. Both 2,6-dichlorophenol and 2,6-dichloroaniline are capable of forming definite synthon motifs, which usually lead to either two- or three-dimensional crystal-packing arrangements. Thus, the two isomorphous pseudopolymorphs of 2,4-diamino-6-methyl-1,3,5-triazine,i.e.(I) and (II), form a three-dimensional network, while theN-methylpyrrolidin-2-one solvate of 6-aminoisocytosine,i.e.(IV), displays two-dimensional layers. On the basis of these results, attempts to cocrystallize 2,6-dichlorophenol with 2,4-diamino-6-methyl-1,3,5-triazine, (III), and 2,6-dichloroaniline with 6-aminoisocytosine, (V), yielded two-dimensional networks, whereby in cocrystal (III) the overall structure is a consequence of the interaction between the two compounds. By comparison, cocrystal–solvate (V) is mainly built by 6-aminoisocytosine forming layers, with 2,6-dichloroaniline and the solvent molecules arranged between the layers.

A two-dimensional network containing an –Mn—O—C—O—Mn– chain: poly[diaqua[1,2-bis(pyridin-4-yl)ethylene][μ3-3-carboxy-5-(carboxylatomethoxy)benzoato]manganese(II)]

2013 ◽  
Vol 69 (11) ◽  
pp. 1311-1313
Author(s):  
Yong-Qian Lei ◽  
Guan-Hua Wang
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Three Dimensional ◽  
Isophthalic Acid ◽  
Water Molecules ◽  
Carboxylate Group ◽  
Two Dimensional ◽  
Dimensional Network

In the title compound, [Mn(C10H6O7)(C12H10N2)(H2O)2]nor [Mn(HOABDC)(bpe)(H2O)2]n[H3OABDC is 5-(carboxymethoxy)isophthalic acid and bpe is 1,2-bis(pyridin-4-yl)ethylene], each MnIIcation is at the centre of a distorted octahedron formed by three carboxylate O atoms from three different HOABDC2−ligands, one pyridyl N atom from the terminal bpe ligand and two water molecules. The flexible oxyacetate group bound to a methylene C atom of the HOABDC2−ligand links the MnIIcentres into –Mn—O—C—O—Mn– chains, and the carboxylate group bound directly to the benzene ring extends the chains into two-dimensional layers which lie parallel to the (010) plane and present herringbone patterns. Intermolecular O—H...N and C—H...O hydrogen bonds connect the layers into a three-dimensional supramolecular structure.

Structure, Magnetic and Ion-Exchange Properties of Self-Assembled Triaza-Copper(II)-Oxalate Hybrides Having Nanoscale One-Dimensional Channel

2006 ◽  
Vol 6 (11) ◽  
pp. 3338-3342 ◽  
Author(s):  
Mee Chang ◽  
Minchul Chung ◽  
Byung Soo Lee ◽  
Chee-Hun Kwak
Keyword(s):  
Magnetic Property ◽  
Three Dimensional ◽  
Antiferromagnetic Interaction ◽  
Two Dimensional ◽  
One Dimensional ◽  
X Ray ◽  
Dimensional Network ◽  
Self Assembled ◽  
Exchange Properties ◽  
Strong Antiferromagnetic Interaction

The X-ray structure, porous and magnetic property of a self-assembled network 1 is described in detail. The single crystal X-ray analysis provides 1 as a three-dimensional network, which contains two-dimensional permanent ring forming nanoscale one-dimensional channels. The inter-replacement of perchlorate and hexafluorophosphate anions in solid 1 proves its porous structure. There is somewhat strong antiferromagnetic interaction (J = −74.1 cm−1) between two copper(II) ions through oxalate bridge and weak antiferromagnetic interaction (J = −5.1 cm−1) through AEP ligand.

Novel one- and two-dimensional ZnIIcoordination polymers based on a versatile 3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione ligand

2015 ◽  
Vol 71 (12) ◽  
pp. 1089-1095
Author(s):  
Guoxia Jin ◽  
Jia Wang ◽  
Qidi Wu ◽  
Zheng Han ◽  
Jianping Ma
Keyword(s):  
Hydrogen Bond ◽  
Hydrothermal Reaction ◽  
Three Dimensional ◽  
Two Dimensional ◽  
One Dimensional ◽  
Hydrogen Bond Interactions ◽  
Dimensional Network ◽  
Left And Right ◽  
Solvent Systems ◽  
Single Crystal Analysis

Two new ZnIIcoordination polymers, namely,catena-poly[[dibromidozinc(II)]-μ-[3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione-κ2N:N′]], [ZnBr2(C24H14N2O2)]n, (1), and poly[[bromido[μ3-10-hydroxy-3,6-bis(pyridin-4-yl)phenanthren-9-olato-κ3N:N′:O9]zinc(II)] hemihydrate], {[ZnBr(C24H15N2O2)]·0.5H2O}n, (2), have been synthesized through hydrothermal reaction of ZnBr2and a 60° angular phenanthrenedione-based linker,i.e.3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione, in different solvent systems. Single-crystal analysis reveals that polymer (1) features one-dimensional zigzag chains connected by weak C—H...π and π–π interactions to form a two-dimensional network. The two-dimensional networks are further stacked in anABABfashion along theaaxis through C—H...O hydrogen bonds. LayersAandBcomprise left- and right-handed helical chains, respectively. Coordination polymer (2) displays a wave-like two-dimensional layered structure with helical chains. In this compound, there are two opposite helical –Zn–HL– chains [HLis 10-hydroxy-3,6-bis(pyridin-4-yl)phenanthren-9-olate] in adjacent layers. The layers are packed in anABABsequence and are further connected through O—H...Br and O—H...O hydrogen-bond interactions to form a three-dimensional framework. In (1) and (2), the mutidentateLand HLligands exhibits different coordination modes.

A new antibacterial silver(I) complex incorporating 2,5-dimethylpyrazine and the anti-inflammatory diclofenac

2016 ◽  
Vol 72 (12) ◽  
pp. 947-951 ◽  
Author(s):  
Sevim Hamamci Alisir ◽  
Necmi Dege
Keyword(s):  
Layer Structure ◽  
Three Dimensional ◽  
Antimicrobial Activities ◽  
Phenyl Acetate ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
Carboxylate Groups ◽  
Anti Inflammatory

AgI-containing coordination complexes have attracted attention because of their photoluminescence properties and antimicrobial activities and, in principle, these properties depend on the nature of the structural topologies. A novel two-dimensional silver(I) complex with the anti-inflammatory diclofenac molecule, namely bis{μ-2-[2-(2,6-dichloroanilino)phenyl]acetato-κ3O,O′:O}bis(μ-2,5-dimethylpyrazine-κ2N:N′)silver(I), [Ag2(C14H10Cl2NO2)2(C6H8N2)]n, (I), has been synthesized and characterized by single-crystal X-ray diffraction, revealing that the AgIions are chelated by the carboxylate groups of the anionic 2-[2-(2,6-dichloroanilino)phenyl]acetate (dicl) ligand in a μ3-η1:η2coordination mode. Each dicl ligand links three AgIatoms to generate a one-dimensional infinite chain. Adjacent chains are connected through 2,5-dimethylpyrazine (dmpyz) ligands to form a two-dimensional layer structure parallel to the crystallographicbcplane. The layers are further connected by C—H...π interactions to generate a three-dimensional supramolecular structure. Additionally, the most striking feature is that the structure contains an intramolecular C—H ...Ag anagostic interaction. Furthermore, the title complex has been tested for itsin vitroantibacterial activity and is determined to be highly effective on the studied microorganisms.

Syntheses, Structures and Photoluminescent Properties of the Two Novel Coordination Polymers [Cd(pydc)2(tu)]n and [Cd2(SO4)(nic)2(tu)1.5(H2O)2]n (pydc = Pyridine-2,3-dicarboxylate, nic = Nicotinate, tu = Thiourea)

2011 ◽  
Vol 66 (5) ◽  
pp. 459-464 ◽  
Author(s):  
Chao Xu ◽  
Sheng-Bo Liu ◽  
Taike Duan ◽  
Qun Chen ◽  
Qian-Feng Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Room Temperature ◽  
Three Dimensional ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
One Dimensional ◽  
X Ray ◽  
Dimensional Network

Two novel cadmium coordination polymers, [Cd(pydc)2(tu)]n (1) and [Cd2(SO4)(nic)2(tu)1.5 - (H2O)2]n (2) (pydc = pyridine-2,3-dicarboxylate, nic = nicotinate, tu = thiourea), have been synthesized under hydrothermal conditions and structurally characterized by X-ray diffraction analysis. 1 is a one-dimensional ladder coordination polymer in a two-dimensional network formed by hydrogen bonds. 2 consists of two kinds of Cd(II) centers in different coordination environments connected via nicotinate and sulfate to form a two-dimensional grid network integrated in a three-dimensional framework generated by hydrogen bonds. 2 shows intense fluorescent emission in the solid state at room temperature

A one-dimensional zinc(II) coordination polymer based on mixed multidentateN- andO-donor ligands

2015 ◽  
Vol 71 (4) ◽  
pp. 306-310 ◽  
Author(s):  
Qiu-Ying Huang ◽  
Yu-Hong Zhang ◽  
Xiang-Ru Meng
Keyword(s):  
Coordination Polymer ◽  
Main Chain ◽  
Three Dimensional ◽  
Donor Ligands ◽  
Dimensional Chain ◽  
Two Dimensional ◽  
Coordination Environment ◽  
One Dimensional ◽  
Carboxylate Groups ◽  
Dimensional Network

In the title coordination polymer,catena-poly[[bis[{1-[(1H-benzimidazol-2-yl-κN3)methyl]-1H-tetrazole}zinc(II)]-bis(μ4-pentane-1,5-dioato-1:2:1′:2′κ4O1:O1′:O5:O5′)] methanol disolvate], {[Zn(C5H6O4)(C9H8N6)]·CH3OH}n, each ZnIIion is five-coordinated by four O atoms from four glutarate ligands and by one N atom from a 1-[(1H-benzimidazol-2-yl)methyl]-1H-tetrazole (bimt) ligand, leading to a slightly distorted square-pyramidal coordination environment. Two ZnIIions are linked by four bridging glutarate carboxylate groups to generate a dinuclear [Zn2(CO2)4] paddle-wheel unit. The dinuclear units are further connected into a one-dimensional chainviathe glutarate ligands. The bimt ligands coordinate to the ZnIIions in a monodentate mode and are pendant on both sides of the main chain. In the crystal, the chains are linked by O—H...O and N—H...O hydrogen bonds into a two-dimensional layered structure. Adjacent layers are further packed into a three-dimensional network through van der Waals forces. A thermogravimetric analysis was carried out and the photoluminescent behaviour of the polymer was investigated.

Two different one-dimensional supramolecular chains formed from the reaction of 2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline with two different precursors, Co(NO3)2 and CoCl2

2014 ◽  
Vol 70 (5) ◽  
pp. 522-527
Author(s):  
Xiang-Wen Wu ◽  
Dong Zhang ◽  
Jian-Ping Ma
Keyword(s):  
Three Dimensional ◽  
Two Dimensional ◽  
Coordination Environment ◽  
One Dimensional ◽  
Trigonal Bipyramidal ◽  
Distorted Octahedral ◽  
Solvent Molecules ◽  
New Compounds ◽  
Supramolecular Chains ◽  
Distorted Trigonal Bipyramidal

Two different one-dimensional supramolecular chains with CoII cations have been synthesized based on the semi-rigid ligand 2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline (L), obtained by condensation of 2-(1H-benzimidazol-2-yl)quinoline and 4-(chloromethyl)pyridine hydrochloride. Starting from different CoII salts, two new compounds have been obtained, viz. catena-poly[[[dinitratocobalt(II)]-μ-2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline] dichloromethane monosolvate acetonitrile monosolvate], {[Co(NO3)2(C22H16N4)]·CH2Cl2·CH3CN} n , (I) and catena-poly[[[dichloridocobalt(II)]-μ-2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline] methanol disolvate], {[CoCl2(C22H16N4)]·2CH3OH} n , (II). In (I), the CoII centres lie in a distorted octahedral [CoN3O3] coordination environment. {Co(NO3)2 L} n units form one-dimensional helical chains, where the L ligand has different directions of twist. The helical chains stack together via interchain π–π interactions to form a two-dimensional sheet, and another type of π–π interaction further connects neighbouring sheets into a three-dimensional framework with hexagonal channels, in which the acetonitrile molecules and disordered dichloromethane molecules are located. In (II), the CoII centres lie in a distorted trigonal–bipyramidal [CoCl2N3] coordination environment. {CoCl2 L} n units form one-dimensional chains. The chains interact via C—H...π and C—H...Cl interactions. The result is that two-dimensional sheets are generated, which are further linked into a three-dimensional framework via interlayer C—H...Cl interactions. When viewed down the crystallographic b axis, the methanol solvent molecules are located in an orderly manner in wave-like channels.

Two novel ferrocenyl dipeptide-like compounds generatedviathe Ugi four-component reaction

2015 ◽  
Vol 71 (8) ◽  
pp. 667-672
Author(s):  
Guang-Kui Shao ◽  
Mei Zhao ◽  
Zheng Wei ◽  
Jian-Ping Ma ◽  
Dian-Shun Guo
Keyword(s):  
Hydrogen Bonds ◽  
Combinatorial Chemistry ◽  
Solvent Molecule ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Powerful Method ◽  
Molecular Conformations ◽  
One Dimensional ◽  
Redox Active ◽  
Dimensional Network

The Ugi four-component reaction, a powerful method for the synthesis of diverse dipeptide-like derivatives in combinatorial chemistry, was used to synthesize (S)-1′-{N-[1-(anthracen-9-yl)-2-(tert-butylamino)-2-oxoethyl]-N-(4-methoxyphenyl)carbamoyl}ferrocene-1-carboxylic acid dichloromethane disolvate, [Fe(C6H5O2)(C33H31N2O3)]·2CH2Cl2, (I), and (S)-2-(anthracen-9-yl)-N-tert-butyl-2-[N-(4-methylphenyl)ferrocenylformamido]acetamide, [Fe(C5H5)(C33H31N2O2)], (II). They adopt broadly similar molecular conformations, with near-eclipsed cyclopentadienyl rings and near-perpendicular amide planes in their dipeptide-like chains, one of which is almost coplanar with its attached cyclopentadienyl ring but perpendicular to the aromatic ring bound to the N atom. In the supramolecular structure of (I), a two-dimensional network is constructed based on molecular dimers and a combination of intermolecular O—H...O, N—H...O and C—H...O hydrogen bonds, formingR22(11),R22(16),R22(22) andC(9) motifs. These two-dimensional networks are connected by C—H...O and C—H...Cl contacts to create a three-dimensional framework, where one dichloromethane solvent molecule acts as a bridge between two neighbouring networks. In the packing of (II), classical hydrogen bonds are absent and an infinite one-dimensional chain is generatedviaa combination of C—H...O hydrogen bonds and C—H...π interactions, producing aC(7) motif. This work describes a simple synthesis and the supramolecuar structures of ferrocenyl dipeptide-like compounds and is significant in the development of redox-active receptors.

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