Results 91 to 100 of about 45,771 (255)

1-(2-Azaniumylethyl)piperazine-1,4-diium trinitrate [PDF]

, 2011
In the title salt, C6H18N33+·3NO3−, the piperazine ring adopts a chair conformation and the ethylammonium group is equatorial relative to the piperazine ring, and in an all-trans conformation.
Rademeyer, Melanie, M. Rademeyer
core   +1 more source

Performance comparison of pressure swing adsorption and amine‐based absorption for synthesis gas purification

The Canadian Journal of Chemical Engineering, EarlyView.
Comparison of PSA and amine‐based absorption for syngas purification shows that PSA offers lower energy intensity, global warming potential, and minimum selling price, making it a more sustainable option. However, absorption achieves higher syngas purity. A GREENSCOPE‐based multi‐criteria assessment guides optimal process selection.
Magno Fonseca Santos, Antonio Esio Bresciani, Rita Maria Brito Alves   +2 more
wiley   +1 more source

Structural Investigation of bis(4-Methyl-1-piperazineglyoximato)dipyridinato Cobalt(III) Chloro Dinitrate Trihydrate

Molecules, 2005
The crystal and molecular structure of the title compound,C24H36CoN10O4·2(NO3)·3(H2O)·Cl, have been determined by X-ray analysis: Cc (No: 9),a = 17.6920(4) å, b = 11.8163(2) å, c = 16.4752(4) å, ß = 91.679(1)°, Z = 4.
H. Fun, S. Işık, M. Macit, M. Akkurt, S. Öztürk   +4 more
doaj   +1 more source

A Novel Workflow for Fast Elucidation of Drug Metabolites for Screening—Combining In Silico Metabolite Prediction With Trapped Ion Mobility QTOF‐MS

Drug Testing and Analysis, EarlyView.
UHPLC‐timsTOF‐MS with in silico prediction and automated annotation enabled rapid identification of quetiapine metabolites from pHLMs, facilitating their inclusion in targeted LC‐QTOF‐MS urine screening and improving biomarker detection for toxicological applications.
Annette Zschiesche, Birgit Schneider, Ilona Nordhorn, Carsten Baessmann, Laura M. Huppertz, Jürgen Kempf   +5 more
wiley   +1 more source

Virtual screening and biological evaluation of Piperazine derivatives as human Acetylcholinesterase inhibitors [PDF]

, 2013
The piperazine derivatives have been shown to inhibit human acetylcholinesterase. Virtual screening by molecular docking of piperazine derivatives 1-(1,4-benzodioxane-2-carbonyl) piperazine (K), 4-(4-methyl)-benzenesulfonyl-1-(1,4-benzodioxane-2-carbonyl)
Kumar, J. Ramanna, Archana, M., Mohana, K. N., Umesha, S., Mallesha, L., Chethan Kumar, M., Kavitha Raj Varadaraju   +6 more
core   +3 more sources

Antiplasmodial and Leishmanicidal Activities of 2-Cyano-3-(4-phenylpiperazine-1-carboxamido) Quinoxaline 1,4-Dioxide Derivatives

Molecules, 2012
Malaria and leishmaniasis are two of the World’s most important tropical parasitic diseases. Thirteen new 2-cyano-3-(4-phenylpiperazine-1-carboxamido) quinoxaline 1,4-dioxide derivatives (CPCQs) were synthesized and evaluated for their <em>in vitro&
Carlos Barea, Adriana Pabón, Silvia Galiano, Silvia Pérez-Silanes, German Gonzalez, Chloe Deyssard, Antonio Monge, Eric Deharo, Ignacio Aldana   +8 more
doaj   +1 more source

Chemically Modular, Nonfluorinated Polymer Adsorbents for Capturing Per‐ and Polyfluoroalkyl Substances (PFAS)

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Nonfluorinated polymer networks for PFAS adsorption are synthesized using active ester click chemistry. Incorporating Lewis base ligands along with hydrophilic and hydrophobic co‐monomers leads to high PFOA binding efficiency. Ligand basicity and pH are found to play an important role in PFOA sorption.
Lakshay K. Dhamania, Joshua D. Moon
wiley   +1 more source

Enhanced Electron‐Capturing by Single‐Atomic Iron on Pyridinic N‐Deficient Carbon Drives Self‐Oxidative Degradation of Pollutants

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Pyrolysis of FeOx/g‐C3N4 and ZIF‐8 is performed to introduce Fe single atom and pyridinic nitrogen vacancies onto N‐doped carbon. This modification enables the materials to efficiently extract electrons from ciprofloxacin (CIP) and activate dissolved oxygen. 100% of CIP was degraded within 1 min without adding any oxidant.
Jianyang Gao, Ruonan Wang, Haifeng Lin, Jun Xing, Jixiang Xu, Lei Wang   +5 more
wiley   +1 more source

1,4-Bis(2-nitrobenzyl)piperazine

IUCrData, 2019
The title compound, C18H20N4O4, was synthesized via the base-assisted reaction of piperazine and 2-nitrobenyl bromide in toluene: the complete molecule is generated by a crystallographic inversion centre in the solid state.
Hugh I. Crundwell, Rhiannon I. Grimmett, Guy Crundwell, Barry L. Westcott   +3 more
doaj   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source