catena-Poly[[[(pyrazino[2,3-f][1,10]phenanthroline)copper(II)]-μ-4,4′-oxydibenzoato] monohydrate]

2007 ◽  
Vol 63 (11) ◽  
pp. m2823-m2823
Author(s):  
Chun-Bo Liu ◽  
Yang Liu ◽  
Lu Lu ◽  
Jun Sun
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Helical Chain ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Phenanthroline Ligands

In the title compound, {[Cu(C14H8O5)(C14H8N4)]·H2O} n , the CuII atom adopts a distorted cis-CuN2O2 square-planar coordination geometry. 4,4′-Oxydibenzoate (L) ligands link the CuII atoms, generating a helical chain. Neighbouring chains are linked through π–π interactions between pyrazino[2,3-f][1,10]phenanthroline ligands with a centroid–centroid distance of ca 3.44 Å, resulting in a two-dimensional supramolecular structure. The structure is completed by O—H...O hydrogen bonds.

scholarly journals (2,2′-Bipyridine-κ2N,N′)dichloridopalladium(II) 1,4-dioxane hemisolvate

2014 ◽  
Vol 70 (6) ◽  
pp. m218-m218 ◽  
Author(s):  
Ricardo Alfredo Gutiérrez Márquez ◽  
Carmela Crisóstomo-Lucas ◽  
David Morales-Morales ◽  
Simón Hernández-Ortega
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Complex Molecule ◽  
Inversion Symmetry ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Chloride Ligands ◽  
Bipyridine Ligand

The asymmetric unit of the title compound, [PdCl2(C10H8N2)]·0.5C4H8O2, consists of one PdIIcomplex molecule and a half-molecule of 1,4-dioxane, the complete molecule being generated by inversion symmetry. The PdIIatom has an almost square-planar coordination formed by the 2,2′-bipyridine ligand and two chloride ligands. Two intramolecular C—H...Cl hydrogen bonds occur. In the crystal, the PdIIcomplex and 1,4-dioxane molecules are connected by C—H...O hydrogen bonds, forming a layer parallel to (10-1). Within the layer, weak π–π interactions [centroid–centroid distance = 3.817 (4) Å] are observed between the pyridine rings.

scholarly journals Ethyl 3-[7-ethoxy-6-(4-methoxybenzenesulfonamido)-2H-indazol-2-yl]propanoate

2012 ◽  
Vol 68 (4) ◽  
pp. o931-o931 ◽  
Author(s):  
Najat Abbassi ◽  
Bassou Oulemda ◽  
El Mostapha Rakib ◽  
Detlef Geffken ◽  
Hafid Zouihri
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Two Dimensional ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

In the title compound, C21H25N3O6S, the dihedral angle between the methoxybenzene and indazole rings is 74.96 (5)°. The crystal packing is stabilized by an N—H...O hydrogen bond into a two-dimensional network. In addition, C—H...π interactions and a π–π contact, with a centroid–centroid distance of 3.5333 (6) Å, are observed. The crystal packing is stabilized by N—H...O and C—H...O hydrogen bonds.

scholarly journals Crystal structure of 2-ethyl-3-(4-fluorophenylsulfonyl)-5,7-dimethyl-1-benzofuran

2014 ◽  
Vol 70 (10) ◽  
pp. 249-251
Author(s):  
Hong Dae Choi ◽  
Uk Lee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Two Dimensional ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

In the title compound, C18H17FO3S, the dihedral angle between the plane of the benzofuran ring [r.m.s. deviation = 0.006 (1) Å] and that of the 4-fluorophenyl ring [r.m.s. deviation = 0.004 (1) Å] is 82.45 (4)°. In the crystal, molecules are linkedviathree different pairs of C—H...O hydrogen bonds, forming chains along [001] and enclosing twoR22(10) and oneR22(12) ring motifs. The chains are further linked by π–π interactions [inter-centroid distance = 3.566 (1) Å] between the furan rings of inversion-related molecules, forming a two-dimensional network lying parallel to (100).

scholarly journals Aquachlorido(3,5-dinitro-2-oxidobenzoato-κ2O1,O2)(1,10-phenanthroline-κ2N,N′)chromium(III)

2012 ◽  
Vol 68 (4) ◽  
pp. m388-m388 ◽  
Author(s):  
Zhao-Hui Meng ◽  
Hui Lian ◽  
Shu-Shen Zhang ◽  
Yu-Quan Feng
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Interplanar Distance ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Phenanthroline Ligands

In the title compound, [Cr(C7H2N2O7)Cl(C12H8N2)(H2O)], the CrIIIatom displays a distorted octahedral coordination geometry, with the chelating phenantroline and 3,5-dinitrosalicylate ligands intranspositions. In the crystal, molecules are connectedviaO—H...O hydrogen bonds into a two-dimensional framework parallel to (100). In addition, there are π–π stacking interactions between phenanthroline ligands along thecaxis, with a mean interplanar distance of 3.456 (4) Å.

scholarly journals (8-Aminoquinoline-κ2N,N′)bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato-κ2O,O′)cobalt(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m450-m450 ◽  
Author(s):  
David J. Harding ◽  
Darunee Sertphon ◽  
Phimphaka Harding
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Coordination Geometry ◽  
Π Interactions ◽  
Centroid Distance

In the title compound, [Co(C5HF6O2)2(C9H8N2)], the CoIIcentre exhibits a pseudooctahedral coordination geometry, comprising two N-atom donors from the bidentate aminoquinoline ligand and four O-atom donor atoms from two bidentate chelating 1,1,1,5,5,5-hexafluoropentane-2,4-dionate ligands. In the crystal, molecules are linkedviapairs of N—H...O hydrogen bonds, forming inversion dimers. These dimers are further connected through π–π interactions between neighbouring quinoline rings [centroid–centroid distance = 3.472 (2) Å], and stack along thecaxis.

scholarly journals 4-Hydroxyanilinium 2-carboxyacetate

2012 ◽  
Vol 68 (6) ◽  
pp. o1937-o1937
Author(s):  
Ying-Chun Wang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Carboxyl Groups ◽  
Two Dimensional ◽  
Charge Balance ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

In the title compound, C6H8NO+·C3H3O4 −, the amino N atom is protonated, and one of the carboxyl groups is deprotonated to maintain the charge balance. In the crystal, classical N—H...O and O—H...O hydrogen bonds connect the ions into a two-dimensional network parallel to the ac plane. In addition, the structure is further stabilized by C—H...O and π–π interactions [centroid–centroid distance = 4.115 (2) Å].

scholarly journals Crystal structure of aquabis(heptafluorobutanoato-κO)(1,10′-phenanthroline-κ2N,N′)copper(II)

2016 ◽  
Vol 72 (1) ◽  
pp. 4-7
Author(s):  
Ibrahim Kani
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Basal Plane ◽  
Supramolecular Structure ◽  
Three Dimensional ◽  
Axial Position ◽  
Π Interactions ◽  
Centroid Distance ◽  
Phenanthroline Ligand

The title compound, [Cu(C4F7O2)2(C12H8N2)(H2O)], is mononuclear and contains a pentacoordinated CuIIion. The geometry of CuIIion can be described as distorted square-pyramidal with two O atoms of two butanoate anions and two N atoms of theo-phenanthroline ligand occupying the basal plane, and a water O atom located at the axial position. In the crystal, C—H...(O,F) and O—H...(O,F) hydrogen bonds and π–π interactions [centroid-to-centroid distance 3.533 (2) Å] link the molecules into a three-dimensional supramolecular structure.

Bis{2-[(phenylimino)ethyl]-1H-pyrrol-1-ido-κ2N,N′}nickel(II): a supramolecular structure formed by C—H...π hydrogen bonds

2013 ◽  
Vol 69 (8) ◽  
pp. 851-854 ◽  
Author(s):  
Bi-Yun Su ◽  
Jia-Xiang Wang ◽  
Xiang Liu ◽  
Qian-Ding Li
Keyword(s):  
Transition Metal ◽  
Hydrogen Bonds ◽  
Metal Complex ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Transition Metal Complex ◽  
Coordination Geometry ◽  
Bite Angle ◽  
Square Planar ◽  
Phenyl Rings

In the title compound, [Ni(C12H11N2)2], the NiIIcation lies on an inversion centre and has a square-planar coordination geometry. This transition metal complex is composed of two deprotonatedN,N′-bidentate 2-[(phenylimino)ethyl]-1H-pyrrol-1-ide ligands around a central NiIIcation, with the pyrrolide rings and imine groups lyingtransto each other. The Ni—N bond lengths range from 1.894 (3) to 1.939 (2) Å and the bite angle is 83.13 (11)°. The Ni—N(pyrrolide) bond is substantially shorter than the Ni—N(imino) bond. The planes of the phenyl rings make a dihedral angle of 78.79 (9)° with respect to the central NiN4plane. The molecules are linked into simple chains by an intermolecular C—H...π interaction involving a phenyl β-C atom as donor. Intramolecular C—H...π interactions are also present.

scholarly journals N′-(3-Hydroxybenzylidene)-4-methylbenzohydrazide

2012 ◽  
Vol 68 (6) ◽  
pp. o1816-o1816
Author(s):  
Ji-Lai Liu ◽  
Ming-Hui Sun ◽  
Jing-Jun Ma
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Aromatic Rings ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings

The title compound, C15H14N2O2, was obtained from the reaction of 3-hydroxybenzaldhyde and 4-methylbenzohydrazide in methanol. In the molecule, the benzene rings form a dihedral angle of 2.9 (3)°. In the crystal, N—H...O and O—H...O hydrogen bonds link the molecules into layers parallel to (101). The crystal packing also exhibits π–π interactions between the aromatic rings [centroid–centroid distance = 3.686 (4) Å].

scholarly journals Crystal structure of bis(azido-κN)bis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole-κ2N2,N3]cobalt(II)

2015 ◽  
Vol 71 (5) ◽  
pp. 452-454 ◽  
Author(s):  
Abdelhakim Laachir ◽  
Fouad Bentiss ◽  
Salaheddine Guesmi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Maximum Deviation ◽  
Coordination Geometry ◽  
Acta Cryst ◽  
Π Interactions ◽  
The Mean

In the mononuclear title complex, [Co(N3)2(C12H8N4S)2], the cobalt(II) atom is located on an inversion centre and displays an axially weakly compressed octahedral coordination geometry. The equatorial positions are occupied by the N atoms of two 2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole ligands, whereas the axial positions are occupied by N atoms of the azide anions. The thiadiazole and pyridine rings linked to the metal are almost coplanar, with a maximum deviation from the mean plane of 0.0273 (16) Å. The cohesion of the crystal is ensured by weak C—H...N hydrogen bonds and by π–π interactions between pyridine rings [intercentroid distance = 3.6356 (11) Å], forming a layered arrangement parallel to (001). The structure of the title compound is isotypic with that of the analogous nickel(II) complex [Laachiret al.(2013).Acta Cryst.E69, m351–m352].

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