Results 1 to 10 of about 672,487 (304)

Theoretical study with dipole moment calculation of new electronic states of the molecule BF

open access: yesNanotechnology Reviews, 2016
The potential energy curves for the 45 singlet, triplet, and quintet electronic states in the representation 2s+1Λ(+/-) of the BF molecule have been investigated using the complete active space self-consistent field (CASSCF) method with multireference ...
Al Shawa Sally   +3 more
doaj   +1 more source

Ab initio Vibration-Rotation Spectroscopy

open access: yesCHIMIA, 2004
This review surveys recent theoretical work from our group in the area of vibration-rotation spectroscopy. It addresses the computation of anharmonic force fields and spectroscopic constants in the context of rovibrational perturbation theory as
Walter Thiel
doaj   +1 more source

Synthesis, Spectroscopic Characterization and Potentiometric Studies of a Tetradentate [N2O2] Schiff Base, N,N'-bis(2-hydroxybenzylidene)-1,1-diaminoethane and Its Co(II),Ni(II),Cu(II) and Zn(II) Complexes.

open access: yesInternational Journal of Electrochemical Science, 2013
The new complexes [M(BHBDAE)(H2O)2] (Co(II), Ni(II), Cu(II) and Zn(II); BHBDAE: N,N'-bis(2–hydroxybenzylidene)–1,1–diaminoethane) have been synthesized and characterized by IR, EPR, 1H NMR, magnetic moment as well as electronic spectroscopy data.
Reda A.A. Ammar   +1 more
doaj   +1 more source

Ab Initio study of spectroscopic constant and anharmonic force field of OCN2

open access: yes四川大学学报. 自然科学版, 2017
we calculate the equilibrium geometry structure of OCN2 by using B3LYP, B3p86, B3pw91 and MP2 methods combining  with cc-pVnZ (n=D,T) and aug-cc-pwCVDZ basis sets.
WANG Xue-Jun   +2 more
doaj  

A reatividade do estado excitado triplete de 1,3-indanodiona em benzeno Triplet excited state reactivity of 1,3-indandione in benzene solution

open access: yesQuímica Nova, 2007
Rate constants for the quenching of 1,3-indandione (1) triplet by olefins and by hydrogen and electron donors were obtained employing the laser flash photolysis technique in benzene solution.
Frances R. dos Santos   +3 more
doaj   +1 more source

Modeling Triatomic Biosignatures: Ozone and Isotopomers

open access: yesThe Astrophysical Journal
In this work, we present a new approach to produce spectroscopic constants and model first-principles synthetic spectra for all molecules of astrophysical interest.
Thomas M. Cross   +2 more
doaj   +1 more source

Optical Constants of Chemical Vapor Deposited Graphene for Photonic Applications

open access: yesNanomaterials, 2021
Graphene is a promising building block material for developing novel photonic and optoelectronic devices. Here, we report a comprehensive experimental study of chemical-vapor deposited (CVD) monolayer graphene’s optical properties on three different ...
Marwa A. El-Sayed   +14 more
doaj   +1 more source

An Intruder-Free Fock Space Coupled-Cluster Study of the Potential Energy Curves of LiMg+ within the (2,0) Sector

open access: yesMolecules
The potential energy curves (PECs) and spectroscopic constants of the ground and excited states of a LiMg+ molecular cation were investigated. We obtained accurate results for the fifteen lowest-lying states of the LiMg+ cation using the Intermediate ...
Grzegorz Skrzyński, Monika Musial
doaj   +1 more source

Theoretical Calculation of Ground and Electronically Excited States of MgRb+ and SrRb+ Molecular Ions: Electronic Structure and Prospects of Photo-Association

open access: yesAtoms
In this work, a comprehensive theoretical investigation is carried out to explore the electronic and spectroscopic properties of selected diatomic molecular ions MgRb+ and SrRb+. Using high-level ab initio calculations based on a pseudopotential approach,
Mohamed Farjallah   +3 more
doaj   +1 more source

Molecular Interaction Between Cationic Polymer Polyethyleneimine and Rose Bengal Dye: A Spectroscopic Study

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2019
The binding mechanism and polymer–fluorescence probe interactions between polyethyleneimine (PEI) and Rose Bengal (RB) was investigated by using UV–Vis absorption, steady- state and time-resolved fluorescence spectroscopy techniques since they remain ...
TUĞBA BAYRAKTUTAN
doaj   +1 more source

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