Results 81 to 90 of about 75,364 (265)

Synthesis, crystal structure and Hirshfeld surface analysis of 3,3′-[ethane-1,2-diylbis(sulfanediyl)]bis(1H-1,2,4-triazol-5-amine)

open access: yesActa Crystallographica Section E: Crystallographic Communications
The title compound, C6H10N8S2, crystallizes in the monoclinic crystal system with P21/c space group. The molecular geometry features a flexible ethylenedithio spacer inducing a 76.69 (11)° dihedral angle between triazole moieties; this twist precludes π ...
Shakhnoza Mavlonova   +6 more
doaj   +1 more source

Synthesis, Crystal Structural Characterization and Biological Properties of Thiosemicarbazones of Schiff Bases Derived from 4-Acyl-2-pyrazoline-5-one

open access: yesE-Journal of Chemistry, 2011
A novel synthesis, single crystal and biological activity of 4-acylthiosemicarbazone-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one by condensation of 4-acyl-3-methyl-1-(4`-methylphenyl)-2-pyrazolin-5-one with thiosemicarbazide was carried out.
Arjunsinh Rana   +4 more
doaj   +1 more source

Synthesis of Quinoxaline 1,4-di-N-Oxide Analogues and Crystal Structure of 2-Carbomethoxy-3-hydroxyquinoxaline-di-N-oxide

open access: yesMolecules, 2011
A series of quinoxaline 1,4-di-N-oxide analogues were prepared from benzofurazan N-oxide derivatives and β-diketone ester compounds by the improved Beirut reaction.
Minmin Zhang   +4 more
doaj   +1 more source

Weak ferromagnetism in non-centrosymmetric BiPd 4K superconductor

open access: yes, 2015
We report synthesis of non-centrosymmetric BiPd single crystal by self flux method. The BiPd single crystal is crystallized in monoclinic structure with the P21 space group.
Awana, V. P. S.   +7 more
core   +1 more source

A Cu‐Based Near‐IR Active MOF with an Ion‐Pair Guest Exhibiting Versatile and Selective Gas‐Solid Reactivity

open access: yesAdvanced Materials, EarlyView.
The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha   +10 more
wiley   +1 more source

Structural Studies of 2-Pentyl/Pentenyl-Substituted Methyl 4-Hydroxy-2H-1,2-Benzothiazine-3-Carboxylate-1,1-Dioxide

open access: yesWalailak Journal of Science and Technology, 2012
Crystal structures of methyl 2-pentyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide 1 and methyl 2-pentenyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide 2 have been determined after their synthesis from saccharin.
Muhammad Nadeem ARSHAD   +6 more
doaj   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

Conditions for the formation of a non-autonomous phase at the structural deformation of complex vanadium oxides

open access: yesChimica Techno Acta, 2018
A new previously unknown effect of a reversible transition from a single-phase system to a heterophase system containing a non-autonomous phase was observed during thermal and chemical deformations of the Zn2-2xCd2xV2O7 structure.The role of local ...
M. V. Rotermel   +3 more
doaj   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

The crystal structure of the zwitterionic co-crystal of 2,4-dichloro-6-{[(3-hydroxypropyl)azaniumyl]methyl}phenolate and 2,4-dichlorophenol

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C10H13Cl2NO2·C6H4Cl2O, was formed from the incomplete Mannich condensation reaction of 3-aminopropan-1-ol, formaldehyde and 2,4-dichlorophenol in methanol.
Bhawna Uprety, Charmaine Arderne
doaj   +1 more source

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