scholarly journals Dichloridotris(2-methyl-1H-imidazole-κN3)cadmium

2012 ◽  
Vol 68 (4) ◽  
pp. m439-m439
Author(s):  
Run-Qiang Zhu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Mononuclear Complexes ◽  
Dimensional Network ◽  
Cl Atoms

In the title compound, [CdCl2(C4H6N2)3], the CdIIatom displays a pentacoordinate CdN3Cl2coordination geometry, being coordinated by an N atom of three 2-methylimidazole ligands and two Cl atoms. In the crystal, the mononuclear complexes are linked by N—H...Cl hydrogen bonds into a two-dimensional network in theabplane.

scholarly journals Poly[(μ2-2-aminopyrimidine-κ2N1:N3)di-μ2-chlorido-mercury(II)]

2012 ◽  
Vol 68 (4) ◽  
pp. m385-m386 ◽  
Author(s):  
Hossein Eshtiagh-Hosseini ◽  
Zakieh Yousefi ◽  
Agnieszka Janiak
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Mirror Plane ◽  
Two Dimensional ◽  
Polymeric Structure ◽  
Coordination Network ◽  
Dimensional Network ◽  
Centroid Distance ◽  
A Site ◽  
Cl Atoms

The title compound, [HgCl2(C4H5N3)]n, features a two-dimensional network parallel to (001) that is based on an HgIIatom octahedrally coordinated by four μ2-Cl atoms and two μ2-2-aminopyrimidine (apym) ligands intranspositions, yielding a distorted HgCl4N2octahedron. The coordination network can be described as an uninodal 4-connected net with the sql topology. The HgIIion lies on a site of -1 symmetry and the apym ligand lies on sites ofmsymmetry with the mirror plane perpendicular to the pyrimidine plane and passing through the NH2group N atom. This polymeric structure is stabilized by N—H...Cl hydrogen bonds and columnar π–π stacking of pyrimidine rings, with a centroid–centroid distance of 3.832 (2) Å.

scholarly journals catena-Poly[[diaquabis(1H-imidazole-κN3)cobalt(II)]-μ-2,3,5,6-tetrachloroterephthalato-κ2O1:O4]

2012 ◽  
Vol 68 (4) ◽  
pp. m368-m368
Author(s):  
Chang-Ge Zheng ◽  
Peng Zhang ◽  
Ping Li ◽  
Pei-Pei Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
A Chain

In the title compound, [Co(C8Cl4O4)(C3H4N2)2(H2O)2]n, the CoIIion displays a distorted octahedral coordination geometry with two O atoms from two monodentate tetrachloroterephthalate dianions, two N atoms from two imidazole molecules and two O atoms from two water molecules. The CoIIions are connectedviathe tetrachloroterephthalate dianions into a chain running along the crystallographic [110] direction. Adjacent chains are linked into a two-dimensional network arranged parallel to (010) by classical N—H...O and O—H...O hydrogen bonds.

scholarly journals Crystal structure of 2-nitro-N-(5-nitro-1,3-thiazol-2-yl)benzamide

2014 ◽  
Vol 70 (12) ◽  
pp. o1252-o1252 ◽  
Author(s):  
Rodolfo Moreno-Fuquen ◽  
Diego F. Sánchez ◽  
Javier Ellena
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings ◽  
The Mean ◽  
Amide Fragment

In the title compound, C10H6N4O5S, the mean plane of the non-H atoms of the central amide fragment C—N—C(=O)—C [r.m.s. deviation = 0.0294 Å] forms dihedral angles of 12.48 (7) and 46.66 (9)° with the planes of the thiazole and benzene rings, respectively. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming chains along [001]. In addition, weak C—H...O hydrogen bonds link these chains, forming a two-dimensional network, containingR44(28) ring motifs parallel to (100).

scholarly journals 6-Amino-3-methyl-4-(3,4,5-trimethoxyphenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile

2014 ◽  
Vol 70 (8) ◽  
pp. o875-o876 ◽  
Author(s):  
Naresh Sharma ◽  
Goutam Brahmachari ◽  
Bubun Banerjee ◽  
Rajni Kant ◽  
Vivek K. Gupta
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Pyrazole Ring ◽  
Ring System ◽  
Boat Conformation ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

In the title compound, C17H18N4O4, the dihedral angle between the benzene ring and 2,4-dihydropyrano[2,3-c]pyrazole ring system is 89.41 (7)°. The pyran moiety adopts a strongly flattened boat conformation. In the crystal, molecules are linked by N—H...N, N—H...O, C—H...N and C—H...O hydrogen bonds into an infinite two-dimensional network parallel to (110). There are π–π interactions between the pyrazole rings in neighbouring layers [centroid–centroid distance = 3.621 (1) Å].

scholarly journals N-(3-Chloro-1H-indazol-5-yl)-4-methoxybenzenesulfonamide

2013 ◽  
Vol 69 (11) ◽  
pp. o1632-o1632
Author(s):  
Hakima Chicha ◽  
El Mostapha Rakib ◽  
Latifa Bouissane ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Two Dimensional ◽  
Common Edge ◽  
Compound C ◽  
Dimensional Network ◽  
The Common ◽  
The Mean

In the title compound, C14H12ClN3O3S, the fused five- and six-membered rings are folded slightly along the common edge, forming a dihedral angle of 3.2 (1)°. The mean plane through the indazole system makes a dihedral angle of 30.75 (7)° with the distant benzene ring. In the crystal, N—H...O hydrogen bonds link the molecules, forming a two-dimensional network parallel to (001).

scholarly journals Synthesis and crystal structures of a bis(3-hydroxy-cyclohex-2-en-1-one) and two hexahydroquinoline derivatives

2020 ◽  
Vol 76 (2) ◽  
pp. 125-131
Author(s):  
Scott A. Steiger ◽  
Chun Li ◽  
Christina Gates ◽  
Nicholas R. Natale
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Structural Features ◽  
Boat Conformation ◽  
Two Dimensional ◽  
Aryl Group ◽  
Dimensional Network ◽  
A Chain ◽  
Intramolecular Hydrogen

The title compound I, 2,2′-[(2-nitrophenyl)methylene]bis(3-hydroxy-5,5-dimethylcyclohex-2-enone), C23H27NO6, features a 1,3-ketone–enol conformation which is stabilized by two intramolecular hydrogen bonds. The most prominent intermolecular interactions in compound I are C—H...O hydrogen bonds, which link molecules into a two-dimensional network parallel to the (001) plane and a chain perpendicular to (1\overline{1}1). Both title compounds II, ethyl 4-(4-hydroxy-3,5-dimethoxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C23H29NO6, and III, ethyl 4-(anthracen-9-yl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C29H29NO3, share the same structural features, such as a shallow boat conformation of the dihydropyridine group and an orthogonal aryl group attached to the dihydropyridine. Intermolecular N—H...O bonding is present in the crystal packing of both compound II and III.

scholarly journals Bis{μ-2,2′-[(3,4-dithiahexane-1,6-diyl)bis(nitrilomethanylylidene)]bis(4-bromophenolato)-κ4O,N,N′,O′}dicopper(II)

2018 ◽  
Vol 74 (1) ◽  
pp. 38-40
Author(s):  
Julia A. Rusanova ◽  
Dmytro Bederak ◽  
Vladimir N. Kokozay
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Binuclear Complex ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Chelating Ligand ◽  
Dimensional Network ◽  
Coordination Bonds

The crystal structure of the title compound, [Cu2(C18H12Br2N4O2S2)2], consists of binuclear complex units which lie across inversion centres and are connected by weak Cu—O coordination bonds forming chains along thebaxis. The CuIIion is five-coordinated by two N atoms and two O atoms of the chelating ligand and one symmetry-related O atom forming a square-pyramidal coordination geometry. In the crystal, short S...Br contacts connect neighbouring chains into a two-dimensional network parallel to (101).

(R)-1-Phenylethanaminium–(S,S)-2,3-dibromosuccinate–(R,R)-2,3-dibromosuccinic acid–water (2/1/1/2)

2006 ◽  
Vol 62 (4) ◽  
pp. o1281-o1283
Author(s):  
Andreas Fischer
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Quantitative Yield ◽  
Acid Water ◽  
Two Dimensional ◽  
Rotation Axes ◽  
Compound C ◽  
Dimensional Network ◽  
Network Of Hydrogen Bonds

From an aqueous solution of racemic 2,3-dibromosuccinic acid and (R)-1-phenylethanamine, crystals of the title compound, C8H12N+·0.5C4H2Br2O4 2−·0.5C4H4Br2O4·H2O, were obtained in almost quantitative yield. The structure contains both enantiomers of the starting material, dibromosuccinic acid. The S,S enantiomer is present as a dianion and the R,R enantiomer as the neutral acid; both of these components lie on twofold rotation axes. The structure features a complex two-dimensional network of hydrogen bonds.

2′-(1H-Indol-3-ylmethylene)isonicotinohydrazide ethanol solvate

2006 ◽  
Vol 62 (4) ◽  
pp. o1360-o1361 ◽  
Author(s):  
Zuo-Liang Jing ◽  
Wen-Wen Cheng ◽  
Xin Chen ◽  
Yu Ming
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Ethanol Solvate

In the crystal structure of the title compound, C15H12N4O·C2H6O, molecules are linked via weak intermolecular N—H...N, O—H...O and N—H...O hydrogen bonds, forming a two-dimensional network.

The layered structure of poly[[hexaaqua(μ4-benzene-1,2,4,5-tetracarboxylato)dicopper(II)] tetrahydrate]

2013 ◽  
Vol 69 (11) ◽  
pp. 1344-1347 ◽  
Author(s):  
Patricio Cancino ◽  
Evgenia Spodine ◽  
Verónica Paredes-García ◽  
Diego Venegas-Yazigi ◽  
Andrés Vega
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Layered Structure ◽  
Title Compound ◽  
Coordination Mode ◽  
Water Molecules ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Dimensional Network

In the structure of the title compound, {[Cu2(C10H2O8)(H2O)6]·4H2O}n, the benzene-1,2,4,5-tetracarboxylate ligand, (btec)4−, is located on a crystallographic inversion centre in a μ4-coordination mode. The coordination environment of each pentacoordinated CuIIcentre is square pyramidal (SBP), formed by three water molecules and two carboxylate O atoms from two different (btec)4−ligands. The completely deprotonated (btec)4−ligand coordinates in a monodentate mode to four CuIIatoms. The alternation of (btec)4−ligands and SBP CuIIcentres leads to the formation of a planar two-dimensional covalent network of parallelograms, parallel to theabplane. Hydrogen bonds between a basal water molecule and an apical one from an adjacent [Cu(btec)0.5(H2O)3] unit exist in the intralayer space. Hydrogen bonds are also present between the two-dimensional network and the water molecules filling the channels in the structure.

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