scholarly journals V2O2F4(H2O)2·H2O: a new V4+layer structure related to VOF3

2016 ◽  
Vol 72 (1) ◽  
pp. 80-83 ◽  
Author(s):  
Cameron Black ◽  
Philip Lightfoot
Keyword(s):  
Ionic Liquids ◽  
Title Compound ◽  
Solvothermal Synthesis ◽  
Layer Structure ◽  
Three Dimensional ◽  
Water Molecules ◽  
Frustrated Magnets ◽  
Two Dimensional ◽  
Triangular Lattices ◽  
Solvothermal Conditions

VIVoxyfluorides are of interest as frustrated magnets. The successful synthesis of two-dimensionally connected vanadium(IV) oxyfluoride structures generally requires the use of ionic liquids as solvents. During solvothermal synthesis experiments aimed at producing two- and three-dimensional vanadium(IV) selenites with triangular lattices, the title compound, diaquatetra-μ-fluorido-dioxidodivanadium(IV) monohydrate, V2O2F4(H2O)2·H2O, was discovered and features a new infinite V4+-containing two-dimensional layer comprised of fluorine-bridged corner- and edge-sharing VOF4(H2O) octahedral building units. The synthesis was carried out under solvothermal conditions. The V4+centre exhibits a typical off-centring, with a short V=O bond and an elongatedtrans-V—F bond. Hydrogen-bonded water molecules occur between the layers. The structure is related to previously reported vanadium oxyfluoride structures, in particular, the same layer topology is seen in VOF3.

scholarly journals Crystal structures of tetramethylammonium (2,2′-bipyridine)tetracyanidoferrate(III) trihydrate and poly[[(2,2′-bipyridine-κ2N,N′)di-μ2-cyanido-dicyanido(μ-ethylenediamine)(ethylenediamine-κ2N,N′)cadmium(II)iron(II)] monohydrate]

2016 ◽  
Vol 72 (5) ◽  
pp. 741-746
Author(s):  
Songwuit Chanthee ◽  
Wikorn Punyain ◽  
Supawadee Namuangrak ◽  
Kittipong Chainok
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Layer Structure ◽  
Three Dimensional ◽  
Building Blocks ◽  
Chain Structure ◽  
Water Molecules ◽  
Two Dimensional ◽  
Lattice Water ◽  
Π Stacking

The crystal structures of the building block tetramethylammonium (2,2′-bipyridine-κ2N,N′)tetracyanidoferrate(III) trihydrate, [N(CH3)4][Fe(CN)4(C10H8N2)]·3H2O, (I), and a new two-dimensional cyanide-bridged bimetallic coordination polymer, poly[[(2,2′-bipyridine-κ2N,N′)di-μ2-cyanido-dicyanido(μ-ethylenediamine-κ2N:N′)(ethylenediamine-κ2N,N′)cadmium(II)iron(II)] monohydrate], [CdFe(CN)4(C10H8N2)(C2H8N2)2]·H2O, (II), are reported. In the crystal of (I), pairs of [Fe(2,2′-bipy)(CN)4]−units (2,2′-bipy is 2,2′-bipyridine) are linked together through π–π stacking between the pyridyl rings of the 2,2′-bipy ligands to form a graphite-like structure parallel to theabplane. The three independent water molecules are hydrogen-bonded alternately with each other, forming a ladder chain structure withR44(8) andR66(12) graph-set ring motifs, while the disordered [N(CH3)4]+cations lie above and below the water chains, and the packing is stabilized by weak C—H...O hydrogen bonds. The water chains are further linked with adjacent sheets into a three-dimensional networkviaO—H...O hydrogen bonds involving the lattice water molecules and the N atoms of terminal cyanide groups of the [Fe(2,2′-bipy)(CN)4]−building blocks, forming anR44(12) ring motif. Compound (II) features a two-dimensional {[Fe(2,2′-bipy)(CN)4Cd(en)2]}nlayer structure (en is ethylenediamine) extending parallel to (010) and constructed from {[Fe(2,2′-bipy)(CN)4Cd(en)]}nchains interlinked by bridging en ligands at the Cd atoms. Classical O—H...N and N—H...O hydrogen bonds involving the lattice water molecule and N atoms of terminal cyanide groups and the N—H groups of the en ligands are observed within the layers. The layers are further connectedviaπ–π stacking interactions between adjacent pyridine rings of the 2,2′-bipy ligands, completing a three-dimensional supramolecular structure.

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.

A two-dimensional cadmium(II) coordination polymer based on 5-(pyridin-4-yl)isophthalic acid: poly[[tetraaquabis[μ3-5-(pyridin-4-yl)isophthalato]dicadmium(II)] pentahydrate]

2015 ◽  
Vol 71 (9) ◽  
pp. 834-838 ◽  
Author(s):  
Fang Liu ◽  
Jing-Jing Zhang ◽  
Ming-Yuan Lei ◽  
Qing-Fu Zhang
Keyword(s):  
Hydrothermal Reaction ◽  
Layer Structure ◽  
Three Dimensional ◽  
Isophthalic Acid ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Coordinated Water

The title CdIIcompound, {[Cd2(C13H7NO4)2(H2O)4]·5H2O}n, was synthesized by the hydrothermal reaction of Cd(NO3)2·4H2O and 5-(pyridin-4-yl)isophthalic acid (H2L). The asymmetric unit contains two crystallographically independent CdIIcations, two deprotonatedL2−ligands, four coordinated water molecules and five isolated water molecules. One of the CdIIcations adopts a six-coordinate octahedral coordination geometry involving three O atoms from one bidentate chelating and one monodentate carboxylate group of two differentL2−ligands, one N atom of anotherL2−ligand and two coordinated water molecules. The second CdIIcation adopts a seven-coordinate pentagonal–bipyramidal coordination geometry involving four O atoms from two bidentate chelating carboxylate groups of two differentL2−ligands, one N atom of anotherL2−ligand and two coordinated water molecules. EachL2−ligand bridges three CdIIcations and, likewise, each CdIIcation connects to threeL2−ligands, giving rise to a two-dimensional graphite-like 63layer structure. These two-dimensional layers are further linked by O—H...O hydrogen-bonding interactions to form a three-dimensional supramolecular architecture. The photoluminescence properties of the title compound were also investigated.

scholarly journals Polymorph of (E)-N′-(4-chlorobenzylidene)isonicotinohydrazide monohydrate

IUCrData ◽  
2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Jigmat Stondus ◽  
Sumati Anthal ◽  
A. Jayashree ◽  
B. Narayana ◽  
B. K. Sarojini ◽  
...  
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Two Dimensional ◽  
Acta Cryst ◽  
Dimensional Network ◽  
Benzene Rings

The title hydrate, C13H10ClN3O·H2O, is the orthorhombic polymorph of the previously reported monoclinic compound [Fun et al. (2012). Acta Cryst. E68, o2303–o2304). In the title compound, the dihedral angle between the pyridine and benzene rings is 18.0 (2)°. In the crystal, the Schiff base molecules and water molecules are linked via O—H...O, N—H...O and O—H...N hydrogen bonds, forming a two-dimensional network parallel to (001). In addition, the Schiff base molecules are linked end-to-end by weak C—H...Cl hydrogen along the c-axis direction, forming an overall three-dimensional network. Weak C—H...π interactions are also observed.

scholarly journals Crystal structure of a two-dimensional grid-type iron(II) coordination polymer: poly[[diaquatetra-μ-cyanido-diargentate(I)iron(II)]trans-1,2-bis(pyridin-2-yl)ethylene disolvate]

2014 ◽  
Vol 70 (8) ◽  
pp. 107-110 ◽  
Author(s):  
Jintana Othong ◽  
Nanthawat Wannarit ◽  
Chaveng Pakawatchai ◽  
Sujittra Youngme
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Guest Molecules ◽  
Related Compounds

In the title compound, {[Ag2Fe(CN)4(H2O)2]·2C12H10N2}n, the asymmetric unit contains one FeIIcation, two water molecules, two dicyanidoargentate(I) anions and two uncoordinating 1,2-bis(pyridin-2-yl)ethylene (2,2′-bpe) molecules. Each FeIIatom is six-coordinated in a nearly regular octahedral geometry by four N atoms from dicyanidoargentate(I) bridges and two coordinating water molecules. The FeIIatoms are bridged by dicyanidoargentate(I) units to give a two-dimensional layer with square-grid spaces. The intergrid spaces with interlayer distance of 6.550 (2) Å are occupied by 2,2′-bpe guest molecules which form O—H...N hydrogen bonds to the host layers. This leads to an extended three-dimensional supramolecular architecture. The structure of the title compound is compared with some related compounds containing dicyanidoargentate(I) ligands and N-donor organic co-ligands.

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.

Poly[propane-1,3-diammonium hydroxydeca-μ2-oxo-pentaborate]

2007 ◽  
Vol 63 (3) ◽  
pp. o1104-o1105 ◽  
Author(s):  
Guo-Ming Wang ◽  
Chun-Yang Pan ◽  
Shou-Tian Zheng ◽  
Guo-Yu Yang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Compound C ◽  
Solvothermal Conditions

The title compound, {C3H12N2 2+·B5O8(OH)2−} n , has been synthesized under mild solvothermal conditions in the presence of 1,3-diaminopropane acting as a template. The structure consists of two-dimensional polymeric sheets constructed from [B5O8(OH)]2− pentaborate anions. Adjacent borate sheets are linked by O—H...O hydrogen bonds to form a three-dimensional framework with channels running along one direction. The propane-1,3-diammonium cations lie within the channels, interacting with the framework through N—H...O hydrogen bonds.

Two-dimensional lanthanide(III) coordination polymers: solvothermal synthesis, crystal structure, and stability

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Runmei Ding ◽  
Zixin He ◽  
Meilin Wang ◽  
Danian Tian ◽  
Peipei Cen
Keyword(s):  
Crystal Structure ◽  
Coordination Polymers ◽  
Solvothermal Synthesis ◽  
Analysis Data ◽  
Water Stability ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
X Ray ◽  
Solvothermal Conditions

AbstractBased on 2-(4-pyridyl)-terephthalate (H2pta) and oxalate ligands, two new lanthanide-containing coordination polymers (CPs), [Tb(pta)(C2O4)0.5(H2O)2)]·2H2O (1) and [Sm(pta)(C2O4)0.5(H2O)2)]·2H2O (2), have been synthesized under solvothermal conditions. The structures of both 1 and 2 have been determined by single-crystal X-ray diffraction. Infrared, elemental analysis, powder X-ray diffraction and thermogravimetric analysis data are also presented. The crystals of 1 and 2 exhibit isostructural layer-like networks, crystallizing in the triclinic space group P$‾{1}$. The layers are further stabilized and associated into 3D architectures through hydrogen bonding. Remarkably, the CPs 1 and 2 exhibit excellent water stability and remarkable thermostability with thermal decomposition temperatures of more than 420 °C.

scholarly journals Crystal structures of {[Cu(Lpn)2][Fe(CN)5(NO)]·H2O}nand {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n[where Lpn = (R)-propane-1,2-diamine]: two heterometallic chiral cyanide-bridged coordination polymers

2015 ◽  
Vol 71 (4) ◽  
pp. 392-397
Author(s):  
Olha Sereda ◽  
Helen Stoeckli-Evans
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Water Molecules ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Compound I ◽  
Distorted Octahedral ◽  
Coordination Spheres ◽  
Compound Ii

The title compounds,catena-poly[[[bis[(R)-propane-1,2-diamine-κ2N,N′]copper(II)]-μ-cyanido-κ2N:C-[tris(cyanido-κC)(nitroso-κN)iron(III)]-μ-cyanido-κ2C:N] monohydrate], {[Cu(Lpn)2][Fe(CN)5(NO)]·H2O}n, (I), and poly[[hexa-μ-cyanido-κ12C:N-hexacyanido-κ6C-hexakis[(R)-propane-1,2-diamine-κ2N,N′]dichromium(III)tricopper(II)] pentahydrate], {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n, (II) [where Lpn = (R)-propane-1,2-diamine, C3H10N2], are new chiral cyanide-bridged bimetallic coordination polymers. The asymmetric unit of compound (I) is composed of two independent cation–anion units of {[Cu(Lpn)2][Fe(CN)5)(NO)]} and two water molecules. The FeIIIatoms have distorted octahedral geometries, while the CuIIatoms can be considered to be pentacoordinate. In the crystal, however, the units align to form zigzag cyanide-bridged chains propagating along [101]. Hence, the CuIIatoms have distorted octahedral coordination spheres with extremely long semicoordination Cu—N(cyanido) bridging bonds. The chains are linked by O—H...N and N—H...N hydrogen bonds, forming two-dimensional networks parallel to (010), and the networks are linkedviaN—H...O and N—H...N hydrogen bonds, forming a three-dimensional framework. Compound (II) is a two-dimensional cyanide-bridged coordination polymer. The asymmetric unit is composed of two chiral {[Cu(Lpn)2][Cr(CN)6]}−anions bridged by a chiral [Cu(Lpn)2]2+cation and five water molecules of crystallization. Both the CrIIIatoms and the central CuIIatom have distorted octahedral geometries. The coordination spheres of the outer CuIIatoms of the asymmetric unit can be considered to be pentacoordinate. In the crystal, these units are bridged by long semicoordination Cu—N(cyanide) bridging bonds forming a two-dimensional network, hence these CuIIatoms now have distorted octahedral geometries. The networks, which lie parallel to (10-1), are linkedviaO—H...O, O—H...N, N—H...O and N—H...N hydrogen bonds involving all five non-coordinating water molecules, the cyanide N atoms and the NH2groups of the Lpn ligands, forming a three-dimensional framework.

scholarly journals 2-Thioureido-1H-benzimidazol-3-ium chloride monohydrate

2014 ◽  
Vol 70 (5) ◽  
pp. o553-o553
Author(s):  
C. N. Sundaresan ◽  
Dheeraj Kumar Singh ◽  
Jagadeesh Babu Nanubolu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Ring System ◽  
Water Molecules ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance ◽  
The Mean ◽  
Chloride Monohydrate

In the title compound, C8H9N4S+·Cl−·H2O, the cation is approximately planar, with a dihedral angle of 7.71 (8)° between the mean planes of the benzoimidazole ring system and the thiourea unit. In the crystal, cations, anions and water molecules of crystallization are linked by O—H...Cl, N—H...O, N—H...Cl and N—H...S hydrogen bonds into a three-dimensional network. π–π stacking is observed between the benzene and imidazole rings of neighbouring molecules, the centroid–centroid distance being 3.5774 (11) Å.

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