A new two-dimensional anionic cadmium(II) polymer constructed through thiocyanate coordination bridges

2015 ◽  
Vol 71 (4) ◽  
pp. 318-321 ◽  
Author(s):  
Hui-Ting Wang ◽  
Xiao-Li Wang
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Building Blocks ◽  
The Other ◽  
Supramolecular Network ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Thiocyanate Complex ◽  
Dimensional Network

A new cadmium–thiocyanate complex, poly[4-(dimethylamino)pyridin-1-ium [di-μ-thiocyanato-κ2N:S;κ2S:N-thiocyanato-κN-cadmium(II)]], {(C7H11N2)[Cd(NCS)3]}n, was synthesized by the reaction of cadmium thiocyanate and 4-(dimethylamino)pyridine hydrochloride in aqueous solution. In the crystal structure, each CdIIion is square-pyramidally coordinated by three N and two S atoms from five different thiocyanate ligands, four of which are bridging. The thiocyanate ligands play different roles in the build up of the structure; one role results in the formation of [Cd2(NCS)2] building blocks, while the other links the building blocks and cationsviaN—H...S hydrogen bonds. The N—H...S hydrogen bonds and weak π–π stacking interactions are involved in the formation of both a two-dimensional network structure and the supramolecular network.

Bis{4-[(4-pyridyl)ethenyl]pyridinium} 4-sulfonatobenzoate trihydrate

2006 ◽  
Vol 62 (4) ◽  
pp. o1529-o1531 ◽  
Author(s):  
Li-Ping Zhang ◽  
Long-Guan Zhu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Proton Transfer ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
One Dimensional ◽  
Π Stacking ◽  
Dimensional Network ◽  
Hydrogen Bonded

In the crystal structure of the title organic proton-transfer complex, 2C12H11N2 +·C7H4O5S2−·3H2O, the cations form one-dimensional chains via intermolecular N—H...N hydrogen bonds and these chains, in turn, form a two-dimensional network through π–π stacking interactions. In addition, the anions and water molecules are connected into a two-dimensional hydrogen-bonded network through intermolecular O—H...O hydrogen bonds. The two motifs result in sheets of cations and anions stacked alternately.

scholarly journals Crystal structure of 6-bromo-7-fluoro-4-oxo-4H-chromene-3-carbaldehyde

2015 ◽  
Vol 71 (7) ◽  
pp. 857-860 ◽  
Author(s):  
Yoshinobu Ishikawa
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Title Compound ◽  
Weak Interactions ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

In the title compound, C10H4BrFO3, a brominated and fluorinated 3-formylchromone derivative, all atoms are essentially coplanar (r.m.s. deviation of 0.025 Å for the non-H atoms), with the largest deviation from the least-squares plane [0.050 (6) Å] being for a benzene-ring C atom. In the crystal, molecules are linked through stacking interactions [centroid–centroid distance between the benzene and pyran rings = 3.912 (4) Å], C—H...O hydrogen bonds and short C...O contacts [2.865 (7) Å]. Unsymmetrical halogen...halogen interactions between the bromine and fluorine atoms [Br...F = 3.116 (4) Å, C—Br...F = 151.8 (2), C—F...Br = 154.1 (4)°] are also formed, giving a meandering two-dimensional network propagating in the (041) plane. A comparison with related structures is made and the various types of weak interactions are ranked in importance.

7-Diethylamino-2-oxo-2H-chromene-3-carboxylic acid

2006 ◽  
Vol 62 (7) ◽  
pp. o3076-o3078 ◽  
Author(s):  
Ghasem Rezanejade Bardajee ◽  
Mitchell A. Winnik ◽  
Alan J. Lough
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Methyl Groups ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Π Stacking ◽  
Dimensional Network

In the title molecular structure, C14H15NO4, all non-H atoms, except for the C atoms of the terminal methyl groups of the diethylamino substituents, are essentially coplanar. In the crystal structure, a two-dimensional network is formed via weak intermolecular C—H...O hydrogen bonds and π–π stacking interactions.

scholarly journals Crystal structure of 4,4′-(ethane-1,2-diyl)bis(2,6-dibromoaniline)

2015 ◽  
Vol 71 (1) ◽  
pp. 97-99
Author(s):  
Ines Hauptvogel ◽  
Wilhelm Seichter ◽  
Edwin Weber
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Type Ii ◽  
Two Dimensional ◽  
Inversion Center ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings

In the title compound, C14H12Br4N2, the molecule lies across an inversion center and hence the benzene rings are strictly coplanar. In the crystal, molecules are linked by N—H...N and weak N—H...Br hydrogen bonds, forming a two-dimensional network parallel to (101). In addition, type II Br...Br interactions [3.625 (4) Å] complete a three-dimensional supramolecular network.

scholarly journals Aqua(propanedioato-κ2O1,O3)[2-(1H-pyrazol-1-yl-κN2)-1,10-phenanthroline-κ2N,N′]nickel(II) trihydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m647-m647 ◽  
Author(s):  
Huai Yi Yan ◽  
Tai Qiu Hu ◽  
Jing Min Shi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Mononuclear Complex ◽  
Metal Center ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Π Stacking ◽  
Dimensional Network ◽  
Centroid Distance

In the title mononuclear complex, [Ni(C3H2O4)(C15H10N4)(H2O)]·3H2O, the metal center is coordinated in a distorted NiN3O3geometry. In the crystal structure, intermolecular O—H...O hydrogen bonds link the components into a two-dimensional network. In addition, there are weak π–π stacking interactions between symmetry-related phenanthroline rings, with a centroid–centroid distance of 3.6253 (17) Å.

scholarly journals Crystal structures of dimethyl 5-iodoisophthalate and dimethyl 5-ethynylisophthalate

2018 ◽  
Vol 74 (8) ◽  
pp. 1093-1096
Author(s):  
Ines Hauptvogel ◽  
Wilhelm Seichter ◽  
Edwin Weber
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Benzene Ring ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Supramolecular Aggregates ◽  
Molecular Framework

In dimethyl 5-iodoisophthalate, C10H9IO4, (I), the planes through the methyl carboxylate moieties are tilted with respect to the benzene ring, whereas the molecular framework of dimethyl 5-ethynylisophthalate, C12H10O4, (II), is perfectly planar. The crystal structure of (I) is stabilized by a three-dimensional supramolecular network comprising C—H...O=C hydrogen bonds, as well as I...O=C interactions. In the crystal of (II), the molecules are connected via C—Hethynyl...O=C hydrogen bonds to infinite strands. Moreover, π–π arene stacking interactions connect the molecular chains into two-dimensional supramolecular aggregates.

scholarly journals Crystal structure of bis(μ2-4-bromo-2-[({2-[({2-[(5-bromo-2-oxidobenzylidene)amino]ethyl}sulfanyl)sulfonyl]ethyl}imino)methyl]phenolato)dicopper(II) dimethylformamide disolvate

2017 ◽  
Vol 73 (11) ◽  
pp. 1797-1800 ◽  
Author(s):  
Julia A. Rusanova ◽  
Dmytro Bederak
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Direct Synthesis ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Schiff Base Ligands ◽  
Tetradentate Schiff Base ◽  
Dimensional Network ◽  
Square Planar

The title dinuclear copper(II) complex [Cu2(C18H16Br2N2O4S2)2] was prepared by direct synthesis of a dianionic Schiff base derived from 5-bromosalicylaldehyde and cysteamine. The discrete molecules lie across inversion centers and crystallize with two dimethylformamide (DMF) molecules of crystallization. The unique CuIIion is four-coordinated by two tetradentate Schiff base ligands in a distorted square-planar N2O2environment. In the crystal, short intermolecular S...Br contacts, weak C—H...O hydrogen bonds and intra- and intermolecular π–π stacking interactions between rings of the ligand link the components into a two-dimensional network parallel to (010).

scholarly journals Crystal structure and Hirshfeld surface analysis of 2-[(1,3-benzoxazol-2-yl)sulfanyl]-N-(2-methoxyphenyl)acetamide

2019 ◽  
Vol 75 (10) ◽  
pp. 1531-1535
Author(s):  
Abdullah Aydin ◽  
Sevim Turktekin Celikesir ◽  
Mehmet Akkurt ◽  
Merve Saylam ◽  
Varol Pabuccuoglu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Ring System ◽  
Hirshfeld Surface ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network

In the title compound, C16H14N2O3S, the 1,3-benzoxazole ring system is essentially planar (r.m.s deviation = 0.004 Å) and makes a dihedral angle of 66.16 (17)° with the benzene ring of the methoxyphenyl group. Two intramolecular N—H...O and N—H...N hydrogen bonds occur, forming S(5) and S(7) ring motifs, respectively. In the crystal, pairs of C—H...O hydrogen bonds link the molecules into inversion dimers with R 2 2(14) ring motifs, stacked along the b-axis direction. The inversion dimers are linked by C—H...π and π–π-stacking interactions [centroid-to-centroid distances = 3.631 (2) and 3.631 (2) Å], forming a three-dimensional network. Two-dimensional fingerprint plots associated with the Hirshfeld surface show that the largest contributions to the crystal packing come from H...H (39.3%), C...H/H...C (18.0%), O...H/H...O (15.6) and S...H/H...S (10.2%) interactions.

scholarly journals Synthesis and crystal structure of a two-dimensional CoIIcoordination polymer: poly[(μ3-3-carboxybenzoato)[μ2-5-(pyridin-4-yl)-1H,2′H-3,3′-bi[1,2,4-triazole]]cobalt(II)]

2017 ◽  
Vol 73 (11) ◽  
pp. 1779-1781
Author(s):  
Chao-Jun Du ◽  
Xiao-Na Zhao ◽  
Bao-Yong Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
The Other ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Synthesis And Crystal Structure ◽  
Carboxylate Groups ◽  
Dimensional Network ◽  
A Chain

In the title compound, [Co(C8H5O4)(C9H6N7)]n, the divalent CoIIatom is six-coordinated to three N atoms from two symmetrical 5-(pyridin-4-yl)-1H,2′H-3,3′-bi[1,2,4-triazole] (H2pyttz) ligands and three O atoms from three symmetrical 3-carboxybenzoate (Hbdic) ligands, leading to a distorted {CoN3O3} octahedral coordination environment. Two CoIIcations are linked by four bridging carboxylate groups to generate a dinuclear [Co2(CO2)4] unit. The dinuclear units are further connected into a chain along [010]viathe Hbdic ligands. The other infinite chain, along [100], is formed through the H2pyttz ligands. Finally, the two kinds of chains are cross-linked, by sharing the CoIIcations, into a two-dimensional network. In the crystal, adjacent layers are further linked by O—H...N hydrogen bonds into a three-dimensional framework.

scholarly journals Crystal structure of 7,7′-[(pyridin-2-yl)methylene]bis(5-chloroquinolin-8-ol)

2020 ◽  
Vol 76 (8) ◽  
pp. 1271-1274
Author(s):  
Yukiyasu Kashiwagi ◽  
Koji Kubono ◽  
Toshiyuki Tamai
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Ring System ◽  
The Other ◽  
Two Dimensional ◽  
Quinoline Ring ◽  
Compound C ◽  
Dimensional Network ◽  
Ring Motif

In the title compound, C24H15Cl2N3O2, one quinoline ring system is essentially planar and the other is slightly bent. An intramolecular O—H...N hydrogen bond involving the hydroxy group and a pyridine N atom forms an S(5) ring motif. In the crystal, two molecules are associated into an inversion dimer with two R 2 2(7) ring motifs through intermolecular O—H...N and O—H...O hydrogen bonds. The dimers are further linked by an intermolecular C—H...O hydrogen bond and four C—H...π interactions, forming a two-dimensional network parallel to (001).

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