Results 31 to 40 of about 1,079,430 (204)

Vibrational Relaxation Dynamics of Polyatomic Molecules in Solution

open access: yesCHIMIA, 2003
Ultrafast time-resolved fluorescence measurements have been carried out to investigate vibrational relaxation dynamics of perylene derivatives in solution. The early results obtained with cyanoperylene in acetonitrile are presented and discussed.
Anatolio Pigliucci, Eric Vauthey
doaj   +1 more source

Methods for Direct Laser Cooling of Polyatomic Molecules

open access: yes, 2022
Molecules controlled at the single-quantum-state level offer wide-ranging applications spanning many of the frontiers of modern physics. Within the past decade, simple diatomic molecules have been brought under full quantum control both via assembly from
Augenbraun, Benjamin Lee
core   +4 more sources

A brief introduction to molecular orbital theory of simple polyatomic molecules for undergraduate chemistry students

open access: yesQuímica Nova, 2012
A simple, four-step method for better introducing undergraduate students to the fundamentals of molecular orbital (MO) theory of the polyatomic molecules H2O, NH3, BH3 and SiH4 using group theory is reported.
Ione M. Baibich, Ian S. Butler
doaj   +1 more source

Absorption of Broadband Low‐Frequency Sound Beyond the Thermodynamics Limit: An Acoustic Resonator With Magnetic Bearing

open access: yesAdvanced Science, EarlyView.
This work presents a magnetic‐bearing acoustic resonator that overcomes the thermodynamics limit of sound absorption. By introducing tunable negative stiffness, it achieves broadband low‐frequency absorption within a compact cavity, far exceeding the performance achievable by classic mass‐tuned designs.
Ying Hu   +5 more
wiley   +1 more source

The importance of Rydberg orbitals in dissociative ionization of small hydrocarbon molecules in intense laser fields

open access: yesScientific Reports, 2017
Much of our intuition about strong-field processes is built upon studies of diatomic molecules, which typically have electronic states that are relatively well separated in energy.
Bethany Jochim   +15 more
doaj   +1 more source

Probing multiphoton light-induced molecular potentials

open access: yesNature Communications, 2020
Conical intersections, a hallmark of polyatomic molecules, can be induced with light, leading to new reaction pathways. Here, the authors show that intense fields can create complex, beyond-conical intersections even in diatomics, resulting in an ...
M. Kübel   +9 more
doaj   +1 more source

A Fifth-order Multi-perturbation Derivation of the Energy Coefficients of Polyatomic Molecules [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 1996
A multiperturbation theory has been developed for molecular systems. In the present paper we extend this theory to fifth order in the energy. The "bare-nucleus" hydrogenic function is chosen as the zero-order wave function rather than the more customary ...
Moh'd Abu-Jafar   +2 more
doaj   +1 more source

Potential‐Controlled Ammonium‐Assisted Reversible Electrodeposition of Polyoxometalates for Hybrid Redox Flow Batteries

open access: yesAdvanced Science, EarlyView.
Potential‐controlled NH4+‐assisted reversible electrodeposition of molecular metal oxide clusters enables dynamic solution‐to‐solid electron storage. Leveraging this deposition/dissolution reaction chemistry, polyoxometalate‐based hybrid flow batteries are demonstrated as a new platform for deposition‐based electrochemical energy storage.
Ke Wang   +3 more
wiley   +1 more source

Experimental Study of Cs Isotropic and Anisotropic Polyatomic Rydberg Molecules [PDF]

open access: yes, 2019
In this thesis, we investigate few-body physics and many-body physics of ultralong-range Rydberg molecules. Ultralong-range Rydberg molecules are formed through scattering processes between Rydberg electrons and ground state atoms.
Yang, Jin
core  

Direct Laser Cooling of Polyatomic Molecules

open access: yes, 2023
Over the past decade, tremendous progress has been made to extend the tools of laser cooling and trapping to molecules. Those same tools have recently been applied to polyatomic molecules (molecules containing three or more atoms).
Hallas, Christian   +5 more
core  

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