Results 91 to 100 of about 1,368,587 (205)

Cyclization of a 1,8‐Diphenylanthracene by Scholl Reactions to Form Five‐ and Seven‐Membered Ring Embedded Polycyclic Aromatic Hydrocarbons

Chemistry – A European Journal, EarlyView.
Reactions of 10‐mesityl‐1,8‐diphenylanthracene with DDQ/TfOH produced three products via sequential formation of a five‐ or seven‐membered ring. Unexpectedly, the triply cyclized product with a rubicene substructure was formed through cyclization involving 1,2‐methyl shift.
Tatsuhiro Sasaki, Eiji Tsurumaki, Shinji Toyota   +2 more
wiley   +1 more source

“Square-Root” Klein–Gordon Equation: The Harmonic and Morse Potentials

Atoms
Quantum relativistic solutions of a “square-root” version of the Klein–Gordon equation, for a particle in a one-dimensional Morse potential, are presented using methods previously proposed and applied to a particle in a harmonic oscillator.
Luis A. Poveda, Bill Poirier, Arthur R. B. de Magalhães   +2 more
doaj   +1 more source

Vibrational Circular Dichroism Spectra of 2,5‐Diaminoterephtalate Macrocycles Reveal Distant Vibrational Exciton Coupling

Chemistry – A European Journal, EarlyView.
The energy level diagrams for the ν(C═O) and the δ(N─H) vibrations, resulting of combining in‐phase and out‐of‐phase modes on the basis of their local symmetries, was built by applying the exciton coupling theory to a new class of chiral macrocycles, based on the 2,5‐diaminoterephthalate scaffold.
Samara Medina, Krzysztof Nowak, Marek Grzybowski, Juan Casado, Francisco J. Ramírez   +4 more
wiley   +1 more source

Nonequilibrium quantum fluctuation relations for harmonic systems in nonthermal environments

New Journal of Physics, 2013
We formulate exact generalized nonequilibrium fluctuation relations for the quantum mechanical harmonic oscillator coupled to multiple harmonic baths. Each of the different baths is prepared in its own individual (in general nonthermal) state.
D Pagel, P Nalbach, A Alvermann, H Fehske, M Thorwart   +4 more
doaj   +1 more source

Reduction Process of Pt(IV) Complexes With Axial Acetato Ligands by Ascorbic Acid; Comparison of Experimental and Computational Tools

Chemistry – A European Journal, EarlyView.
Comparison of experimental and calculated rate constants for reduction of selected Pt(IV) complexes by ascorbic acid (AA) in water solution at pH = 7. ABSTRACT In the present work, the reduction mechanism of several Pt(IV) complexes bearing two axial acetato ligands by ascorbic acid (AA) was investigated.
Ondřej Tichý, Patrick A. Yassemipour, Christian R. Kowol, Jaroslav V. Burda   +3 more
wiley   +1 more source

Quantum Game Theory in Finance [PDF]

This is a short review of the background and recent development in quantum game theory and its possible application in economics and finance. The intersection of science and society is also discussed. The review is addressed to non-specialists.
Edward W. Piotrowski, Jan Sladkowski
core  

Synthesis, Structures, and Properties of Cyclopenta‐Fused Anthra[1,2‐a]anthracene Derivatives as New Polycyclic Aromatic Compounds

Chemistry – A European Journal, EarlyView.
Three new polycyclic aromatic compounds consisting of one or two five‐membered rings were synthesized by Scholl reaction or Pd‐catalyzed cyclization from fused anthracene derivatives. X‐ray analysis and DFT calculations revealed that these compounds have slightly twisted or curved structures.
Moe Kobayashi, Yu Watanabe, Eiji Tsurumaki, Masahiro Yamashina, Hiroshi Ikeda, Daiki Tauchi, Masashi Hasegawa, Shinji Toyota   +7 more
wiley   +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

Subnormality in the Quantum Harmonic Oscillator

, 2007
. This is an invitation to enjoy watching how unbounded subnormality, a rather recent development, gets involved in solving the commutation relation of the quantum harmonic oscillator. 1991 Mathematics Subject Classification.
Franciszek Hugon, S \gamma Ss, Franciszek Hugon Szafraniec   +2 more
core  

NTECARS: A Nonthermal Equilibrium CARS Spectra Fitting Code

Journal of Raman Spectroscopy, EarlyView.
We present NTECARS, an open‐source code written in Julia for the calculation and fitting of CARS spectra under nonequilibrium conditions. Rovibrational distributions can be flexibly modeled and fitted for different use cases. The code currently implements CO2$$ \mathrm{C}{\mathrm{O}}_2 $$ and N2$$ {\mathrm{N}}_2 $$ molecules and is validated under ...
Christian A. Busch, Uwe Czarnetzki
wiley   +1 more source