scholarly journals Crystal structure of an eight-coordinate terbium(III) ion chelated byN,N′-bis(2-hydroxybenzyl)-N,N′-bis(pyridin-2-ylmethyl)ethylenediamine (bbpen2−) and nitrate

2015 ◽  
Vol 71 (1) ◽  
pp. 65-68 ◽  
Author(s):  
Thaiane Gregório ◽  
André Luis Rüdiger ◽  
Giovana G. Nunes ◽  
Jaísa F. Soares ◽  
David L. Hughes
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Rotation Axis ◽  
Nitrate Anion ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Dimensional Network ◽  
Benzene Rings ◽  
Unique Part

The reaction of terbium(III) nitrate pentahydrate in acetonitrile withN,N′-bis(2-hydroxybenzyl)-N,N′-bis(pyridin-2-ylmethyl)ethylenediamine (H2bbpen), previously deprotonated with triethylamine, produced the mononuclear compound [N,N′-bis(2-oxidobenzyl-κO)-N,N′-bis(pyridin-2-ylmethyl-κN)ethylenediamine-κ2N,N′](nitrato-κ2O,O′)terbium(III), [Tb(C28H28N4O2)(NO3)]. The molecule lies on a twofold rotation axis and the TbIIIion is eight-coordinate with a slightly distorted dodecahedral coordination geometry. In the symmetry-unique part of the molecule, the pyridine and benzene rings are both essentially planar and form a dihedral angle of 61.42 (7)°. In the molecular structure, the N4O4coordination environment is defined by the hexadentate bbpen ligand and the bidentate nitrate anion. In the crystal, a weak C—H...O hydrogen bond links molecules into a two-dimensional network parallel to (001).

Tris(3,3′-diamino-2,2′-bipyridine)zinc(II) dinitrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2668-m2668 ◽  
Author(s):  
Chang-Ju Wu ◽  
Ju-Na Chen ◽  
Jing-Min Shi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Nitrate Anion ◽  
Two Dimensional ◽  
Threefold Axis ◽  
Coordination Environment ◽  
Dimensional Network

In the title complex, [Zn(C10H10N4)3](NO3)2, the six-coordinate ZnII atom lies at the intersection of three twofold axes in a slightly disorted octahedral coordination environment. The N atom of a nitrate anion is located on a threefold axis. In the crystal structure, intermolecular N—H...N and N—H...O hydrogen bonds between cations and anions form a two-dimensional network perpendicular to the c axis.

4-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrrolidine-1-carboxamido)ethyl]benzenesulfonamide

2006 ◽  
Vol 62 (7) ◽  
pp. o3019-o3020 ◽  
Author(s):  
Xiang Li
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Two Dimensional ◽  
Dimensional Network ◽  
Benzene Rings

In the title molecular structure, C16H21N3O4S, the dihedral angle between the essentially planar 2,5-dihydro-1H-pyrrole and benzene rings is 20.8 (2)°. In the crystal structure, molecules are linked by N—H...O hydrogen bonds [H...O = 2.07 (3)–2.57 (3) Å] to form a two-dimensional network.

Bis{N-(2-hydroxybenzoyl)-N′-[1-(2-pyridyl)ethylidene}hydrazinato]copper(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1567-m1568 ◽  
Author(s):  
Dong-Bin Dang ◽  
Yan Bai ◽  
Chun-Ying Duan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Rotation Axis ◽  
Title Complex ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Neutral Complex ◽  
Tridentate Ligands ◽  
Dimensional Network ◽  
Benzene Rings

The title complex, [Cu(C14H12N3O2)2], consists of two deprotonated 2-acetylpyridine salicylhydrazone ligands coordinated to the copper as N,N,O-tridentate ligands, forming a neutral complex. The Cu atom lies on a twofold rotation axis. The structure is stabilized by intramolecular O—H...N hydrogen bonding, and π–π stacking interactions between the pyridyl and benzene rings lead to a two-dimensional network in the crystal structure.

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 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).

scholarly journals Bis[2-(2-aminoethyl)-1H-benzimidazole-κ2 N 2,N 3](nitrato-κ2 O,O′)cobalt(II) chloride trihydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m711-m712
Author(s):  
Jing Zhao ◽  
Heng Zhang ◽  
Guoyi Zhu
Keyword(s):  
Three Dimensional ◽  
Water Molecules ◽  
Nitrate Anion ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Benzene Rings ◽  
Chloride Trihydrate ◽  
Distorted Octahedral Coordination Environment

In the title compound, [Co(NO3)(C9H11N3)2]Cl·3H2O, the CoII atom is coordinated by four N atoms from two chelating 2-(2-aminoethyl)-1H-benzimidazole ligands and two O atoms from one nitrate anion in a distorted octahedral coordination environment. In the crystal, N—H...Cl, N—H...O, O—H...Cl and O—H...O hydrogen bonds link the complex cations, chloride anions and solvent water molecules into a three-dimensional network. π–π interactions between the imidazole and benzene rings and between the benzene rings are observed [centroid–centroid distances = 3.903 (3), 3.720 (3), 3.774 (3) and 3.926 (3) Å].

scholarly journals Crystal structure of 2-[2-phenyl-1-(phenylsulfonyl)ethyl]-1-phenylsulfonyl-1H-indole

2015 ◽  
Vol 71 (12) ◽  
pp. o910-o911
Author(s):  
M. Umadevi ◽  
Potharaju Raju ◽  
R. Yamuna ◽  
Arasambattu K. Mohanakrishnan ◽  
G. Chakkaravarthi
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Phenyl Ring ◽  
Three Dimensional ◽  
Ring System ◽  
Dihedral Angles ◽  
Indole Ring ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings

In the title compound, C28H23NO4S2, the indole ring system (r.m.s. deviation = 0.007 Å) subtends dihedral angles of 78.69 (13) and 38.97 (13)° with the planes of the N- and C-bonded sulfonylbenzene rings, respectively, and these two benzene rings are inclined to each other at an angle of 65.45 (16)°. The methylene-linked phenyl ring is twisted at an angle of 81.80 (13)° from the indole ring. The molecular structure features two short intramolecular C—H...O contacts, which both generateS(6) rings. In the crystal, molecules are linked by C—H...O hydrogen bonds and C—H...π interactions, generating a three-dimensional network.

scholarly journals Crystal structure of di-μ2-chlorido-bis[(1-aza-4-azoniabicyclo[2.2.2]octane-κN1)dichloridodicadmium]

2015 ◽  
Vol 71 (12) ◽  
pp. m259-m260
Author(s):  
Jing-Jing Yan ◽  
Qi-Jian Pan ◽  
Li-Zhuang Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Metal Cation ◽  
Title Compound ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Trigonal Bipyramidal Coordination ◽  
Trigonal Bipyramidal ◽  
Dimensional Network

In the structure of the binuclear title compound, [Cd2(C6H13N2)2Cl6], two CdIIatoms are bridged by two Cl−ligands, defining a centrosymmetric Cd2Cl2motif. Each metal cation is additionally coordinated by two Cl−ligands and the N atom of a protonated 1,4-diazabicyclo[2.2.2]octane (H-DABCO)+ligand, leading to an overall trigonal–bipyramidal coordination environment with one of the bridging Cl−ligands and the N atom at the apical sites. In the crystal, the neutral dimers are linkedviaN—H...Cl hydrogen bonds, forming a two-dimensional network expanding parallel to (100).

A new two-dimensional CdIIcoordination polymer based on 2-(1H-imidazol-1-ylmethyl)-6-methyl-1H-benzimidazole and benzene-1,2-dicarboxylate: synthesis, crystal structure and characterization

2017 ◽  
Vol 73 (10) ◽  
pp. 828-832 ◽  
Author(s):  
Huai-Xia Yang ◽  
Yan-Qiu Yang ◽  
Di Cheng ◽  
Ya-Xue Li ◽  
Xiang-Ru Meng
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Spectroscopic Properties ◽  
Organic Ligands ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Dimensional Network ◽  
Ir Spectroscopic

In the construction of coordination polymers, many factors can influence the formation of the final architectures, such as the nature of the metal centres, the organic ligands and the counter-anions. In the coordination polymer poly[aqua(μ-benzene-1,2-dicarboxylato-κ4O1,O1′:O2,O2′)[μ-2-(1H-imidazol-1-ylmethyl)-6-methyl-1H-benzimidazole-κ2N2:N3]cadmium(II)], [Cd(C12H12N4)(C8H4O4)(H2O)]nor [Cd(immb)(1,2-bdic)(H2O)]n, each CdIIion is seven-coordinated by two N atoms from two symmetry-related 2-(1H-imidazol-1-ylmethyl)-6-methyl-1H-benzimidazole (immb) ligands, by four O atoms from two symmetry-related benzene-1,2-dicarboxylate (1,2-bdic2−) ligands and by one water molecule, leading to a CdN2O5distorted pentagonal bipyramidal coordination environment. The immb and 1,2-bdic2−ligands bridge CdIIions and form a two-dimensional network structure. O—H...O and N—H...O hydrogen bonds stabilize the structure. In addition, the IR spectroscopic properties, PXRD patterns, thermogravimetric behaviour and fluorescence properties of the title polymer have been investigated.

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.

Sign in / Sign up

Export Citation Format

Share Document