Results 101 to 110 of about 2,752,747 (293)
ACS Catalysis, 2018 We studied electrochemical nitrogen reduction reactions (NRR) to ammonia on single atom catalysts (SACs) anchored on defective graphene derivatives by density functional calculations.
C. Choi +5 more
semanticscholar +1 more source
3,4-Dimethyl-1H-1,2,4-triazepino[2,3-a]benzimidazol-2(3H)-one
Acta Crystallographica Section E, 2010 In the molecule of the title compound, C12H12N4O, a C atom and an N atom of the benzimidazole fused-ring portion are part of a seven-membered ring; this ring adopts a boat-shaped conformation (with the fused-ring atoms representing the stern and the sp3 ...
Asmae Saber +4 more
doaj +1 more source
Strong Analytic Controllability for Hydrogen Control Systems
, 2004 The realization and representation of so(4,2) associated with the hydrogen atom Hamiltonian are derived. By choosing operators from the realization of so(4,2) as interacting Hamiltonians, a hydrogen atom control system is constructed, and it is proved ...
Chi, Quo-Shin +3 more
core +1 more source
The High Chemofidelity of Metal-Catalyzed Hydrogen Atom Transfer.
Accounts of Chemical Research, 2018 The implementation of any chemical reaction in a structurally complex setting ( King , S. M. J. Org. Chem. 2014 , 79 , 8937 ) confronts structurally defined barriers: steric environment, functional group reactivity, product instability, and through-bond ...
Samantha A. Green +5 more
semanticscholar +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2015 In each of the title isomeric compounds, C9H7.3N·C7H3.7ClNO4, (I), and C9H8N·C7H3ClNO4, (II), of isoquinoline with 3-chloro-2-nitrobenzoic acid and 4-chloro-2-nitrobenzoic acid, the two components are linked by a short hydrogen bond between a base N atom
Kazuma Gotoh, Hiroyuki Ishida
doaj +1 more source
Gauge invariant hydrogen atom Hamiltonian
, 2010 For quantum mechanics of a charged particle in a classical external electromagnetic field, there is an apparent puzzle that the matrix element of the canonical momentum and Hamiltonian operators is gauge dependent. A resolution to this puzzle is recently
Chen, Xiang-Song +3 more
core +1 more source
Bis(acetato-κO)bis(pyridine-2-aldoxime-κ2N,N′)nickel(II)
Acta Crystallographica Section E, 2012 In the mononuclear title compound, [Ni(CH3COO)2(C6H6N2O)2], the NiII atom is coordinated by two pyridine-2-aldoxime (PaoH) ligands and two acetate groups, with cis coordination for the pairs of identical ligands.
Youtao Si
doaj +1 more source
Hyperfine splitting in non-relativistic QED: uniqueness of the dressed hydrogen atom ground state
, 2011 We consider a free hydrogen atom composed of a spin-1/2 nucleus and a spin-1/2 electron in the standard model of non-relativistic QED. We study the Pauli-Fierz Hamiltonian associated with this system at a fixed total momentum.
A. Pizzo +18 more
core +3 more sources
(E)-2-(4-Nitrobenzylideneamino)benzamide
Acta Crystallographica Section E, 2009 The title compound, C14H11N3O3, adopts an E conformation, with a dihedral angle of 41.8 (1) ° between the mean planes of the two benzene rings. One of the amino H atoms forms an intramolecular hydrogen bond with the amide N atom, while
Shu-Liang Wang +3 more
doaj +1 more source