Results 181 to 190 of about 708,136 (308)

Molecular Excitons and Plasmons in Acenes and Their Radical Cations

Journal of Computational Chemistry, Volume 46, Issue 23, 05 September 2025.
The electronic structure and the physical character of the energetically low‐lying excited electronic states determine the applicability of acenes and their radical cations in organic electronics. Here we employ the intuitive picture of molecular excitons and plasmons to classify these states and their properties with increasing lengths of the acenes ...
Anna M. Weidlich, Andreas Dreuw
wiley   +1 more source

Assessment of pulmonary arterial compliance evaluated using harmonic oscillator kinematics. [PDF]

Pulm Circ, 2017
Hayabuchi Y, Ono A, Homma Y, Kagami S.
europepmc   +1 more source

Fermi Gas in Harmonic Oscillator Potentials [PDF]

, 1999
X. X. Yi, Jun Su
openalex   +1 more source

A remarkable spectral feature of the Schrödinger Hamiltonian of the harmonic oscillator perturbed by an attractive δ′-interaction centred at the origin: double degeneracy and level crossing

, 2013
S. Albeverio, Silvestro Fassari, F. Rinaldi   +2 more
semanticscholar   +1 more source

Theoretical Kinetics Study of the OH + CH3SH Reaction Based on an Analytical Full‐Dimensional Potential Energy Surface

International Journal of Chemical Kinetics, Volume 57, Issue 9, Page 520-529, September 2025.
ABSTRACT Based on a recently developed full‐dimensional analytical potential energy surface, named PES‐2024, which was fitted to high‐level ab initio calculations, three different kinetic theories were used for the computation of thermal rate constants: variational transition state theory (VTST), quasi‐classical trajectory theory (QCT) and ring polymer
Joaquin Espinosa‐Garcia, Cipriano Rangel   +1 more
wiley   +1 more source

Synthesis, Characterization, and Electrochemical Properties of Tri‐ and Tetranuclear CoIII‐Oxo Complexes

European Journal of Inorganic Chemistry, Volume 28, Issue 24, August 29, 2025.
A series of three tetranuclear and two trinuclear Co(III) carboxylate complexes are synthesized and thoroughly spectroscopically and electrochemically characterized. The relative stability of the tetranuclear versus trinuclear complexes is investigated by density functional theory calculations, and the infrared and ultraviolet/visible spectra are ...
Timo Fockenberg, Niklas Sülzner, Hatem M. A. Amin, Christoph Wölper, Christof Hättig, Stephan Schulz   +5 more
wiley   +1 more source

Non-pointlike particles in harmonic oscillators [PDF]

, 1997
Achim Kempf
openalex   +1 more source

Exploring the Impact of Topological Variations on the Stability of the Ground Singlet and Lowest‐Lying Triplet States of Catacondensed Hexabenzenoids

European Journal of Organic Chemistry, Volume 28, Issue 30, August 19, 2025.
The influence of topological features on the stability of 37 catacondensed hexabenzenoids in their ground singlet and lowest‐lying triplet states is investigated using a multivariate regression model. This analysis reveals key structural factors governing stability, providing insights into the design of polybenzene‐based materials.
Iqra Sarfraz, Anna Roglans, Albert Artigas, Miquel Solà   +3 more
wiley   +1 more source

General properties of optical harmonic generation from a simple oscillator model [PDF]

, 1998
F. Bassani, Valerio Lucarini
openalex   +1 more source

Challenges in Determining Whether ENSO Is a Damped or a Self‐Sustained Oscillation

Geophysical Research Letters, Volume 52, Issue 15, 16 August 2025.
Abstract The recharge oscillator (RO) model has been successfully used to understand different aspects of the El Niño‐Southern Oscillation (ENSO). Fitting the RO to observations and climate model simulations consistently suggests that ENSO is a damped oscillator whose variability is sustained and made irregular by external weather noise. We investigate
Elle Weeks, Eli Tziperman
wiley   +1 more source