Ro-vibrational Population Distribution in the Ground State of Hydrogen Isotopologues in LHD Peripheral Plasmas Deduced from Emission Spectroscopy

2021 ◽  
pp. 107592
Author(s):  
Hiroki Ishihara ◽  
Arseniy Kuzmin ◽  
Masahiro Kobayashi ◽  
Taiichi Shikama ◽  
Keiji Sawada ◽  
...  
Keyword(s):  
Ground State ◽  
Emission Spectroscopy ◽  
Population Distribution ◽  
Vibrational Population

Vibrational population distribution of ground state BaO formed by the reaction Ba + O2

1976 ◽  
Vol 39 (3) ◽  
pp. 454-456 ◽  
Author(s):  
Michael A. Revelli ◽  
Brian G. Wicke ◽  
David O. Harris
Keyword(s):  
Ground State ◽  
Population Distribution ◽  
Vibrational Population

scholarly journals Internal Energy Distribution in MgO(a3Π) Formed From Mg(3P) + O2 and N2O : A Case of Population Inversion

1986 ◽  
Vol 6 (1) ◽  
pp. 15-35 ◽  
Author(s):  
Bernard Bourguignon ◽  
Joelle Rostas ◽  
Guy Taieb ◽  
Mohammed-Ali Gargoura ◽  
June McCombie
Keyword(s):  
Ground State ◽  
Fluorescence Spectra ◽  
Population Distribution ◽  
Internal State ◽  
Boltzmann Distribution ◽  
Rotational Excitation ◽  
State Distribution ◽  
Population Distributions ◽  
Vibrational Population ◽  
Π State

The internal state distribution of MgO(a3Π) formed from Mg(3P) + O2 and N2O reactions was determined from a reanalysis of the laser induced fluorescence spectra of the d3Δ - a3Π system previously published by Dagdigian. The MgO(a3Π) state formed in the reaction with O2 has a quasi-Boltzmann distribution. In the N2O reaction the rotational excitation is much greater and the vibrational population distribution is inverted with a maximum at v = 2 - 3. The a3Π rovibrational population distributions are compared with those of the X1∑+ ground state. The dynamics of these reactions are discussed on the basis of earlier ab-initio calculations and experimental data.

Tuning the Electrochemical and Photophysical Properties of Osmium-Based Photoredox Catalysts

Synlett ◽  
2022 ◽  
Author(s):  
Eva Bednářová ◽  
Logan R. Beck ◽  
Tomislav Rovis ◽  
Samantha L. Goldschmid ◽  
Katherine Xie ◽  
...  
Keyword(s):  
Ground State ◽  
Emission Spectroscopy ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Low Energy ◽  
Redox Potentials ◽  
Nir Light ◽  
Osmium Complexes ◽  
Absorption And Emission Spectroscopy

AbstractThe use of low-energy deep-red (DR) and near-infrared (NIR) light to excite chromophores enables catalysis to ensue across barriers such as materials and tissues. Herein, we report the detailed photophysical characterization of a library of OsII polypyridyl photosensitizers that absorb low-energy light. By tuning ligand scaffold and electron density, we access a range of synthetically useful excited state energies and redox potentials.1 Introduction1.1 Scope1.2 Measuring Ground-State Redox Potentials1.3 Measuring Photophysical Properties1.4 Synthesis of Osmium Complexes2 Properties of Osmium Complexes2.1 Redox Potentials of Os(L)2-Type Complexes2.2 Redox Potentials of Os(L)3-Type Complexes2.3 UV/Vis Absorption and Emission Spectroscopy3 Conclusions

scholarly journals Dynamic solvatochromism in solvent mixtures

2001 ◽  
Vol 73 (3) ◽  
pp. 405-409 ◽  
Author(s):  
Diana E. Wetzler ◽  
Carlos Chesta ◽  
Roberto Fernández-Prini ◽  
Pedro F. Aramendía
Keyword(s):  
Excited State ◽  
Ground State ◽  
Emission Spectroscopy ◽  
Characteristic Time ◽  
Polar Solvent ◽  
Emission Spectra ◽  
Spectral Shift ◽  
Solvent Mixtures ◽  
Time Resolved ◽  
Different Temperatures

Solvatochromism and thermochromism of 4-aminophthalimide and 4-amino-N-methylphthalimide were studied by absorption and steady-state and time-resolved emission spectroscopy in solvent mixtures of toluene­ethanol and toluene­acetonitrile at different temperatures. Emission spectra shift to the red upon addition of a polar solvent (PS) to toluene. Solvent mixtures show a much greater thermochromic shift to the blue in emission than the neat solvents. This is explained by the decrease in temperature of the exothermic association of the polar solvent to the excited state. Emission spectra are time dependent in solvent mixtures in the ns timescale. The time evolution of this emission is interpreted on the basis of the different solvation of the ground state and the emitting excited state. Stern­Volmer plots are obtained for the dependence of the spectral-shift characteristic time with [PS].

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