(1E,2E)-1,2-Bis[(E)-3-phenylallylidene]hydrazine

2007 ◽  
Vol 63 (11) ◽  
pp. o4443-o4443
Author(s):  
Xiao-Hua Chen
Keyword(s):  
Hydrazine Hydrate ◽  
Title Compound ◽  
Inversion Center ◽  
Planar Molecule

The title compound [alternatively called (E)-3-phenylprop-2-enal azine], C18H16N2, was synthesized by the reaction of hydrocinnamaldehyde with hydrazine hydrate. The nearly planar molecule is centrosymmetric, with the mid-point of the N—N bond lying at an inversion center.

Poly[[bis[pentaaquagadolinium(III)]-μ4-benzene-1,2,3,4,5,6-hexacarboxylato] tetrahydrate]

2006 ◽  
Vol 62 (4) ◽  
pp. m914-m915 ◽  
Author(s):  
Zhi-Feng Li ◽  
Chun-Xiang Wang ◽  
Ping Wang ◽  
Qing-Hua Zhang
Keyword(s):  
Title Compound ◽  
Center Of Mass ◽  
Water Molecules ◽  
Inversion Center ◽  
Coordination Environment

The title compound, {[Gd2(C12O12)(H2O)10]·4H2O} n , consists of an extended network of Gd ions coordinated by the mellitate anions and water molecules. In this complex, each Gd atom involves a dodecahedral coordination environment comprising five water molecules and three O atoms from two separate mellitate anions. The center of mass of the hexaanion [C6(COO)6]6− coincides with a crystallographic inversion center.

scholarly journals 6-[1-Acetyl-5-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazole-3-yl]-2(3H)-benzoxazolone

Molbank ◽  
10.3390/m1021 ◽  
2018 ◽  
Vol 2018 (4) ◽  
pp. M1021
Author(s):  
Yordanka Ivanova ◽  
Antonya Todorova ◽  
Christo Chanev ◽  
Ognyan Petrov
Keyword(s):  
Acetic Acid ◽  
Hydrazine Hydrate ◽  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Title Compound ◽  
Target Compound

The title compound, 6-[1-acetyl-5-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-3-yl]-2(3H)-benzoxazolone, was synthesized by condensation of 6-[3-(4-methoxyphenyl)-2-propenoyl]-2(3H)-benzoxazolone (1) and hydrazine hydrate in acetic acid in 84% yield. The structure of the target compound was confirmed using 1H-NMR, 13C-NMR, IR, MS, and elemental analysis.

scholarly journals 6-(4-Nitrophenoxy)hexanol

2009 ◽  
Vol 65 (6) ◽  
pp. o1285-o1285
Author(s):  
Muhammad Saif Ullah Khan ◽  
Zareen Akhter ◽  
Michael Bolte ◽  
Sajjad A. Cheema ◽  
Humaira M. Siddiqi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Compound C ◽  
Planar Molecule

The title compound, C12H17NO4, features an almost planar molecule (r.m.s. deviation for all non-H atoms = 0.070 Å). All methylene C—C bonds adopt an antiperiplanar conformation. In the crystal structure the molecules lie in planes parallel to (1\overline{1}2) and the packing is stabilized by O—H...O hydrogen bonds.

scholarly journals Crystal structure, Hirshfeld surface analysis and spectroscopic characterization of the di-enol tautomeric form of the compound 3,3′-[(2-sulfanylidene-1,3-dithiole-4,5-diyl)bis(sulfanediyl)]bis(pentane-2,4-dione)

2020 ◽  
Vol 76 (9) ◽  
pp. 1427-1432
Author(s):  
Keysha T. Cordero Giménez ◽  
Victoria Y. Soto Díaz ◽  
Jean C. González Espiet ◽  
Alexis Lavín Flores ◽  
Jesbaniris Bas Concepción ◽  
...  
Keyword(s):  
Title Compound ◽  
Tautomeric Form ◽  
Spectroscopic Characterization ◽  
Inversion Center ◽  
Torsion Angles ◽  
Triclinic Space Group ◽  
Covalently Linked ◽  
Intramolecular Hydrogen ◽  
Short Contacts

The reaction between [TBA]2[Zn(dmit)2] and 3-chloro-2,4-pentanedione yielded single crystals of the title compound, (3E,3′E)-3,3′-[(2-sulfanylidene-1,3-dithiole-4,5-diyl)bis(sulfanediyl)]bis(4-hydroxypent-3-en-2-one), C13H14O4S5, after solvent evaporation. The title compound crystallizes in the triclinic space group P\overline{1} with two molecules related by an inversion center present in the unit cell. The central thione ring moiety contains a carbon–carbon double bond covalently linked to two sulfoxide substituents located outside of the plane of the ring. The S—C—C—S torsion angles are −176.18 (8) and −0.54 (18)°. Intramolecular hydrogen bonds occur within the two dione substituents (1.67–1.69 Å). Adjacent asymmetric units are linked by C—H...S (2.89–2.90 Å), S...S [3.569 (1) Å] and O...H [2.56–2.66 Å between non-stacked thione rings] short contacts.

scholarly journals Bis(2,2′,2′′-nitrilotriacetamide-κ3O,N,O′)nickel(II) dinitrate tetrahydrate

2013 ◽  
Vol 69 (2) ◽  
pp. m89-m89 ◽  
Author(s):  
Xiao-Hui Deng ◽  
Qi-Jun Nie ◽  
Feng-Juan Zhu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Inversion Center ◽  
Lattice Water ◽  
Distorted Octahedral ◽  
Nitrate Anions

In the title compound, [Ni(C6H12N4O3)2](NO3)2·4H2O, the NiIIcation is located on an inversion center and isN,O,O′-chelated by two nitrilotris(acetamide) molecules in a distorted octahedral geometry. The complex cations, nitrate anions and lattice water molecules are connected by O—H...O and N—H...O hydrogen bonds, forming a three-dimensional supramolecular structure.

Redetermination of trans-diaquabis(picolinato-κ2 N,O)cobalt(II) dihydrate

2006 ◽  
Vol 62 (4) ◽  
pp. m796-m798 ◽  
Author(s):  
Zerrin Heren ◽  
Cem Cüneyt Ersanlı ◽  
Cem Keser ◽  
Nazan Ocak Ískeleli
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Inversion Center ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network ◽  
Distorted Octahedral

The crystal structure of the title compound, [Co(C6H4NO2)2(H2O)2]·2H2O, has been reinvestigated with improved precision [previous reports: Chang et al. (1972). J. Coord. Chem. 2, 31–34; Lumme et al. (1969). Suom. Kemistil. B, 42, 270]. In the title compound, the Co atom is located on an inversion center and its coordination can be described as slightly distorted octahedral, equatorially trans-coordinated by two N and O atoms of two picolinate ligands and axially coordinated by two O atoms of the water molecules. Intermolecular O—H...O and C—H...O hydrogen-bonding interactions result in the formation of an intricate three-dimensional network.

[3-(2-Chlorophenyl)-1,2,4-oxadiazol-5-yl]methanol

2006 ◽  
Vol 62 (7) ◽  
pp. o3007-o3008 ◽  
Author(s):  
Xiao-Chen Yan ◽  
Hai-Bo Wang ◽  
Zhi-Qian Liu
Keyword(s):  
Hydrogen Bond ◽  
Title Compound ◽  
Inversion Center ◽  
Hydrogen Bond Interactions ◽  
Compound C

In the title compound, C9H7ClN2O2, the occurrence of O—H...N hydrogen-bond interactions results in the formation of a pseudo-dimer arranged around an inversion center.

scholarly journals Di-tert-butyl 1-[2-hydroxy-3-(methylsulfanyl)propyl]hydrazine-1,2-dicarboxylate

2014 ◽  
Vol 70 (8) ◽  
pp. o843-o843
Author(s):  
Xiao-Guang Bai ◽  
Xiao-Yu Yang ◽  
Ju-Xian Wang
Keyword(s):  
Hydrogen Bonds ◽  
Hydrazine Hydrate ◽  
Title Compound ◽  
Axis Direction ◽  
Tert Butyl ◽  
Compound C ◽  
Supramolecular Chains

The title compound, C14H28N2O5S, was synthesized by the reaction of 2-[(methylsulfanyl)methyl]oxirane with di-tert-butyl oxalate in hydrazine hydrate. In the crystal, molecules are linked by N—H...O and O—H...O hydrogen bonds into supramolecular chains propagating along theb-axis direction.

trans-Diaquabis(N,N′-dimethylethylenediamine)nickel(II) naphthalene-2,6-disulfonate

2007 ◽  
Vol 63 (3) ◽  
pp. m734-m736 ◽  
Author(s):  
Zhao-Xun Lian ◽  
Hao-Hong Li
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Metal Center ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Inversion Center ◽  
Hydrogen Bonded

In the title compound, [Ni(C8H12N2)2(H2O)2](C10H6O6S2), the metal center, located on a crystallographic inversion center, is coordinated by four N atoms and two aqua ligands in an octahedral coordination geometry. The hexacoordinated nickel(II) complex cations are held together via N—H...O and O—H...O hydrogen bonds, resulting in infinite chains, which are connected by centrosymmetric naphthalene-2,6-disulfonate ligands as linkers, generating a two-dimensional hydrogen-bonded network.

scholarly journals (Z)-N-[1-(Aziridin-1-yl)-2,2,2-trifluoroethylidene]-4-bromoaniline

2014 ◽  
Vol 70 (5) ◽  
pp. o550-o550
Author(s):  
Alexander S. Bunev ◽  
Maksim A. Vasiliev ◽  
Gennady I. Ostapenko ◽  
Alexander S. Peregudov ◽  
Victor N. Khrustalev
Keyword(s):  
Title Compound ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Torsion Angles ◽  
Compound C ◽  
Independent Molecules

The title compound, C10H8BrF3N2, crystallizes with two independent molecules in the asymmetric unit, which can be considered as being related by a pseudo-inversion center, so their conformations are different; the corresponding N=C—N—C torsion angles are 54.6 (5) and −50.5 (5)°. In the crystal, molecules related by translation in [001] interact through short intermolecular Br...F contacts [3.276 (2) and 3.284 (2) Å], thus forming two types of crystallographically independent chains.

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