Results 91 to 100 of about 106,125 (294)
Angewandte Chemie, EarlyView.Reducing a nitro‐derivatized arylimido‐polyoxometalate (POM) reversibly switches on its second‐order NLO response, contrasting with prior donor‐functionalized systems that switch off upon reduction. Attenuation of charge‐transfer (CT) to the POM upon reduction gives a more strongly dipolar imido/π‐bridge to ─NO2 CT, signal enhancement of up to 15× (β ...
Claire F. Jones +7 more
wiley +2 more sources
10-Formyl-2,4,6,8,12-pentanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.03,11.05,9]dodecane
Acta Crystallographica Section E, 2009 The title compound, C7H7N11O11 (PNMFIW), is a caged heterocycle substituted with five nitro and one formyl groups. It is related to the hexaazaisowurtzitane family of high-density high-energy polycyclic cage compounds.
Yanshan Shi +4 more
doaj +1 more source
Molecular Design Strategies for High‐Voltage Organic Cathodes
Advanced Energy Materials, EarlyView.This work proposes molecular engineering strategies for high‐voltage organic cathode materials for Li‐ion batteries: (1) increase Li‐O coordination number (CN), (2) achieve a greater increase in aromaticity upon reduction (∆Aromaticity), and (3) add an electron‐withdrawing group (EWG), through a combined experimental and computational study on reported
Sungil Hong +8 more
wiley +1 more source
Angewandte Chemie, EarlyView.Induced by positive electrochemical potentials, thermocatalytic hydrogenation (TCH) of 3‐nitrostyrene with H2 delivers one single product with six‐fold enhanced yield. The enhanced selectivity and activity originate from changes in the adsorption geometry of 3‐nitrostyrene and in the surface concentration of 3‐nitrostyrene and hydrogen via a concurrent
Yunfei Jiao +2 more
wiley +2 more sources
, 2016 The antitumor drugs 1-nitro-9-[(2-(dialkylamino)ethyl)amino]acridines (alkyl = Me, A1; Et, A2) with platinum(II) give tridentate coordination compounds in which the two nitrogens of the ethylenediamine side chain and the C(8) carbon atom of the acridine ...
Giovanni Natile (259681) +4 more
core +1 more source
Animal models of chronic thromboembolic pulmonary hypertension
Animal Models and Experimental Medicine, EarlyView.Current animal models of CTEPH. Created using BioRender.com. Abstract Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare, yet life‐threatening disorder characterized by persistent pulmonary vascular obstruction and elevated pulmonary artery pressure, with progressive remodeling and subsequent right heart failure.
Yong‐Jian Zhu +5 more
wiley +1 more source
Enhanced Formation of Dicarboxylic Acids in the Catalytic Oxidation of Polyethylene With O2 and NOx
Angewandte Chemie, EarlyView.The oxidation of polyethylene in the presence of a mixture of O2 and NOx and with Cu2+/V5+ as catalyst yields ∼51 mol% diacids, while retaining ∼80 mol% of the carbon in the oil fraction. The developed method is robust and tolerates several polymer types as well as impurities.
Tom J. Smak +3 more
wiley +2 more sources
2-Methyl-4-nitro-1-(3-pyridyl)-1H-imidazole
, 2007 The imidazole and pyridine rings in the title compound, C9H8N4O4, are twisted with respect to one another, with a dihedral angle of 48.30 (4)°. The nitro group is almost coplanar with the imidazole plane.
Maciej Kubicki (832465) +1 more
core
Angewandte Chemie, EarlyView.Heterogeneous iron‐catalyzed environmentally benign and sustainable CH‐oxidative esterification methodology has been developed for the synthesis of esters. This challenging reaction has been achieved by the rational design of specific single atom iron‐based catalyst with Fe‐N4 active centers, which empowered the oxidative esterification of methyl and ...
Zhuang Ma +8 more
wiley +2 more sources
5-Methoxy-2-methyl-4-nitro-1-phenyl-1H-imidazole
, 2007 The title compound, C11H11N3O3, contains two planar fragments, viz. the imidazole and phenyl rings. These rings are significantly twisted with respect one to another, with a dihedral angle of 63.99 (8)°.
Maciej Kubicki (832465) +1 more
core