Search results for "Photochemistry | Very Important Paper"

showing 3 items of 13 documents

Green-Light Activation of Push-Pull Ruthenium(II) Complexes.

2020

Abstract Synthesis, characterization, electrochemistry, and photophysics of homo‐ and heteroleptic ruthenium(II) complexes [Ru(cpmp)2]2+ (22+) and [Ru(cpmp)(ddpd)]2+ (32+) bearing the tridentate ligands 6,2’’‐carboxypyridyl‐2,2’‐methylamine‐pyridyl‐pyridine (cpmp) and N,N’‐dimethyl‐N,N’‐dipyridin‐2‐ylpyridine‐2,6‐diamine (ddpd) are reported. The complexes possess one (32+) or two (22+) electron‐deficient dipyridyl ketone fragments as electron‐accepting sites enabling intraligand charge transfer (ILCT), ligand‐to‐ligand charge transfer (LL'CT) and low‐energy metal‐to‐ligand charge transfer (MLCT) absorptions. The latter peak around 544 nm (green light). Complex 22+ shows 3MLCT phosphorescenc…

chemistry.chemical_elementQuantum yield010402 general chemistryElectrochemistryPhotochemistry01 natural sciencesCatalysisPhotoinduced electron transferchemistry.chemical_compoundPhotochemistry | Very Important PaperluminescenceAcetonitrilerutheniumphotophysicsphotochemistryFull Paper010405 organic chemistryChemistryOrganic ChemistryGeneral ChemistryFull Papers0104 chemical sciencesRutheniumExcited stateLuminescencePhosphorescencephotocatalysisChemistry (Weinheim an der Bergstrasse, Germany)
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Side‐on Coordination in Isostructural Nitrous Oxide and Carbon Dioxide Complexes of Nickel

2021

Abstract A nickel complex incorporating an N2O ligand with a rare η2‐N,N′‐coordination mode was isolated and characterized by X‐ray crystallography, as well as by IR and solid‐state NMR spectroscopy augmented by 15N‐labeling experiments. The isoelectronic nickel CO2 complex reported for comparison features a very similar solid‐state structure. Computational studies revealed that η2‐N2O binds to nickel slightly stronger than η2‐CO2 in this case, and comparably to or slightly stronger than η2‐CO2 to transition metals in general. Comparable transition‐state energies for the formation of isomeric η2‐N,N′‐ and η2‐N,O‐complexes, and a negligible activation barrier for the decomposition of the lat…

hiilidioksidityppioksidinitrous oxideback bonding010405 organic chemistryCommunicationcarbon dioxidekompleksiyhdisteetGeneral Medicineequipment and supplies010402 general chemistry01 natural sciencesCommunications0104 chemical sciencesnickelNickel Complexes | Very Important PaperN-heterocyclic carbenesnikkeliN-heterocyclic carbeneAngewandte Chemie
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Applications of Quantum Chemistry in Spectroscopy: Molecules, Complexes of Van der Waals, trapped Molecules

2009

I described in this memory my activities as a researcher at Tomsk well before 2003, in succession to the State University of Tomsk in the Faculty of Physics, Institute of Physics of Siberia, and the Institute of 'Atmospheric Optics, in France since then, mostly at the University of Bourgogne (ICB), but also at the University of Lille I (PhLAM) and the University of Marne-la-Vallée (LCT). Part of my work has been dedicated to the evaluation by calculating ab initio of rovibrational constants for quasi-spherical molecules. The centrifugal distortion constants and the dipole moment of the molecule SO2F2 were calculated to validate the tensor theory and interpreter the spectrum. I twas shown th…

photophysics and photochemistry of molecules and molecular systemsSpectroscopie moléculairemolecular modelingab initio calculationsmodélisation moléculaireMolecular spectroscopyphotophysique et photochimie de molécules et de systémes molèculairescalculs ab initio[PHYS] Physics [physics]
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