Hexaaquamanganese(II) bis[5-(4-nitrophenyl)tetrazolate]

2007 ◽  
Vol 63 (11) ◽  
pp. m2698-m2698 ◽  
Author(s):  
Bin Hu ◽  
Xiong-Bin Xu ◽  
Yong-Xiu Li ◽  
Heng-Yun Ye
Keyword(s):  
Title Compound ◽  
Hydrothermal Reaction ◽  
Hydrogen Bonded

The title compound, [Mn(H2O)6](C7H4N5O2)2, was obtained by the in situ hydrothermal reaction of MnCl2 with 4-nitrobenzonitrile in the presence of NaN3. The Mn atoms are located on inversion centres. The structure comprises hydrogen-bonded sheets of deprotonated 5-(4-nitrophenyl)tetrazole anions and hexaaquamanganese(II) cations.

scholarly journals 10H-Pyrazino[2,3-b][1,4]benzotellurazine, a Novel Tellurium-Containing Heterocyclic System

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Diamond S. Smith ◽  
Dallas N. Alexis ◽  
Frank R. Fronczek ◽  
Thomas Junk
Keyword(s):  
Title Compound ◽  
Heterocyclic System ◽  
Crystallographic Analysis ◽  
Supramolecular Assemblies ◽  
Methyl Derivative ◽  
X Ray ◽  
Hydrogen Bonded

Condensation of 2,3-dichloropyrazine with 2-aminobenzenetellurole and 2-amino-5-methylbenzenetellurole, generated in situ by reduction of the corresponding ditellurides, resulted in the formation of novel 10H-pyrazino[2,3-b][1,4]benzotellurazine and its 7-methyl derivative. The products were purified via their well-crystallized 5,5-dibromo derivatives. X-ray crystallographic analysis of the title compound indicates that it has a pronounced V-shape and forms hydrogen-bonded dimers. Te, N-containing heterocycles have the potential of offering access to supramolecular assemblies.

Bis{4,4′-[(2,2′-bi-1H-imidazole-1,1′-diyl)dimethylene]dipyridinium} β-octamolybdate

2007 ◽  
Vol 63 (11) ◽  
pp. m2817-m2817 ◽  
Author(s):  
Ya-Qian Lan ◽  
Jun-Sheng Qin ◽  
Zhong-Min Su
Keyword(s):  
Aqueous Solution ◽  
Title Compound ◽  
Hydrothermal Reaction ◽  
Two Dimensional ◽  
Compound C ◽  
Hydrogen Bonded

The title compound, (C18H18N6)2[Mo8O26], was produced by hydrothermal reaction of an acidified aqueous solution of Na2MoO4 and 1,1′-bis(pyridin-4-ylmethyl)-2,2′-bi-1H-imidazole (hereafter L). The structure consists of the β-octamolybdate anions having a crystallographic center of symmetry and protonated [H2 L]2+ cations. The [H2 L]2+ cations link β-octamolybdate anions, generating a two-dimensional hydrogen-bonded supramolecular sheet.

scholarly journals Di-μ-chlorido-bis[(2,2′-bipyridine-5,5′-dicarboxylic acid-κ2N,N′)chloridocopper(II)] dimethylformamide tetrasolvate

2013 ◽  
Vol 69 (2) ◽  
pp. m73-m74 ◽  
Author(s):  
Sigurd Øien ◽  
David Stephen Wragg ◽  
Karl Petter Lillerud ◽  
Mats Tilset
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Cooh Group ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Centroid Distance ◽  
Solvent Molecules ◽  
Hydrogen Bonded

In the title compound, [Cu2Cl4(C12H8N2O4)2]·4C3H7NO, which contains a chloride-bridged centrosymmetric CuIIdimer, the CuIIatom is in a distorted square-pyramidal 4 + 1 coordination geometry defined by the N atoms of the chelating 2,2′-bipyridine ligand, a terminal chloride and two bridging chloride ligands. Of the two independent dimethylformamide molecules, one is hydrogen bonded to a single –COOH group, while one links two adjacent –COOH groupsviaa strong accepted O—H...O and a weak donated C(O)—H...O hydrogen bond. Two of these last molecules and the two –COOH groups form a centrosymmetric hydrogen-bonded ring in which the CH=O and the –COOH groups by disorder adopt two alternate orientations in a 0.44:0.56 ratio. These hydrogen bonds link the CuIIcomplex molecules and the dimethylformamide solvent molecules into infinite chains along [-111]. Slipped π–π stacking interactions between two centrosymmetric pyridine rings (centroid–centroid distance = 3.63 Å) contribute to the coherence of the structure along [0-11].

scholarly journals Crystal structure ofcatena-poly[[[bis(pyridine-4-carbothioamide-κN1)cadmium]-di-μ-thiocyanato-κ2N:S;κ2S:N] methanol disolvate]

2016 ◽  
Vol 72 (3) ◽  
pp. 370-373 ◽  
Author(s):  
Tristan Neumann ◽  
Inke Jess ◽  
Christian Näther
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Methanol Molecule ◽  
Donor Group ◽  
Asymmetric Unit ◽  
Thiocyanate Anion ◽  
Anionic Ligands ◽  
Hydrogen Bonded

The asymmetric unit of the polymeric title compound, {[Cd(NCS)2(C6H6N2S)]·2CH3OH}n, consists of one cadmium(II) cation that is located on a centre of inversion as well as one thiocyanate anion, one pyridine-4-carbothioamide ligand and one methanol molecule in general positions. The CdIIcations are octahedrally coordinated by the pyridine N atom of two pyridine-4-carbothioamide ligands and by the S and N atoms of four thiocyanate anions and are linked into chains along [010] by pairs of anionic ligands. These chains are further linked into layers extending along (201) by intermolecular N—H...O and O—H...S hydrogen bonds. One of the amino H atoms of the pyridine-4-carbothioamide ligand is hydrogen-bonded to the O atom of a methanol molecule, and a symmetry-related methanol molecule is the donor group to the S atom of another pyridine-4-carbothioamide ligand whereby each of the pyridine-4-carbothioamide ligands forms two pairs of centrosymmetric N—H...S and O—H...S hydrogen bonds. The methanol molecules are equally disordered over two orientations.

Nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of dopamine, uric acid, guanine, and adenine

Nanoscale ◽  
2021 ◽  
Author(s):  
Kai Zhang ◽  
Zhonghui Zhuo ◽  
Guorong Fan ◽  
Zongde Wang ◽  
Shangxing Chen ◽  
...  
Keyword(s):  
Uric Acid ◽  
Porous Carbon ◽  
Hydrothermal Reaction ◽  
Simultaneous Detection ◽  
Biological Molecules ◽  
Hierarchically Porous ◽  
Sensing Platform ◽  
Guanine And Adenine

A nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of four biological molecules was synthesized via an in situ hydrothermal reaction.

3-Ethylpentan-3-ol

2006 ◽  
Vol 62 (5) ◽  
pp. o2064-o2065 ◽  
Author(s):  
Andrew D. Bond
Keyword(s):  
Crystal Structure ◽  
Crystal Growth ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules

The crystal structure of the title compound, C7H16O, has been determined at 150 (2) K following in situ crystal growth from the liquid. The structure contains four independent molecules in the asymmetric unit, forming a fourfold cyclic arrangement via O—H...O hydrogen bonds.

In situ time-resolved X-ray diffraction of tobermorite formation process under hydrothermal condition: Influence of reactive al compound

2011 ◽  
Vol 26 (2) ◽  
pp. 134-137 ◽  
Author(s):  
K. Matsui ◽  
A. Ogawa ◽  
J. Kikuma ◽  
M. Tsunashima ◽  
T. Ishikawa ◽  
...  
Keyword(s):  
Hydrothermal Reaction ◽  
High Energy ◽  
Saturated Steam ◽  
Array Detector ◽  
Time Interval ◽  
X Rays ◽  
X Ray Diffraction ◽  
Formation Reaction ◽  
X Ray

Hydrothermal formation reaction of tobermorite in the autoclaved aerated concrete (AAC) process has been investigated by in situ X-ray diffraction. High-energy X-rays from a synchrotron radiation source in combination with a newly developed autoclave cell and a photon-counting pixel array detector were used. XRD measurements were conducted in a temperature range 100–190°C throughout 12 h of reaction time with a time interval of 4.25 min under a saturated steam pressure. To clarify the tobermorite formation mechanism in the AAC process, the effect of Al addition on the tobermorite formation reaction was studied. As intermediate phases, non-crystalline calcium silicate hydrate (C-S-H), hydroxylellestadite (HE), and katoite (KA) were clearly observed. Consequently, it was confirmed that there were two reaction pathways via C-S-H and KA in the tobermorite formation reaction of Al containing system. In addition, detailed information on the structural changes during the hydrothermal reaction was obtained.

scholarly journals In situ modification of nanostructure configuration through the manipulation of hydrogen bonded amphiphile self-association

Soft Matter ◽  
2016 ◽  
Vol 12 (18) ◽  
pp. 4221-4228 ◽  
Author(s):  
Jennifer R. Hiscock ◽  
Gianluca P. Bustone ◽  
Ben Wilson ◽  
Kate E. Belsey ◽  
Laura R. Blackholly
Keyword(s):  
Hydrogen Bond ◽  
Nanostructure Formation ◽  
In Situ Modification ◽  
Self Association ◽  
Hydrogen Bonded

Previously overlooked simple amphiphiles show an exciting capacity for complex hydrogen bond mediated self-association and diverse nanostructure formation.

The first dinuclear cobalt complex bridged by acetylamidate ligands: di-μ-acetylamido-κ2O:N;κ2N:O-di-μ-hydroxido-κ4O:O-bis[bis(pyridine-κN)cobalt(III)] bis(perchlorate) acetonitrile disolvate

2012 ◽  
Vol 68 (8) ◽  
pp. m233-m234
Author(s):  
John S. Maass ◽  
Rudy L. Luck ◽  
Matthias Zeller
Keyword(s):  
Title Compound ◽  
Cobalt Complex ◽  
Cationic Complex ◽  
Inversion Point ◽  
Pyridine Ligands ◽  
Solvent Molecules ◽  
Hydrogen Bonded

The title compound, [Co2(C2H4NO)2(OH)2(C5H5N)4](ClO4)2·2C2H3N, consists of two octahedral CoIIIcenters arranged around an inversion point in which twocishydroxide and twotransacetylamidate ligands link the two centers together, forming a dimeric cationic complex. Each CoIIIcenter has twocispyridine ligands which coordinate in the same plane as thecishydroxide ligands. Two acetonitrile solvent molecules and two perchlorate anions are hydrogen bonded to the H atoms on the bridging hydroxide and acetylamidate (N atom) ligands, respectively.

scholarly journals Tetrahydro-1,4-thiazine-3,5-dione

Molbank ◽  
10.3390/m1036 ◽  
2018 ◽  
Vol 2018 (4) ◽  
pp. M1036 ◽  
Author(s):  
R. Aitken ◽  
Alexandra Slawin ◽  
Pei-pei Yeh
Keyword(s):  
Title Compound ◽  
Unit Cell ◽  
X Ray ◽  
Hydrogen Bonded

The X-ray structure of the title compound contains eight molecules in the unit cell which form the basis of a herringbone arrangement of hydrogen bonded ribbons.

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