Concept
Triplet oxygen
Related publications (82)
Reactions of aliphatic amines with ozone: Kinetics and mechanisms
Aliphatic amines are common constituents in micropollutants and dissolved organic matter and present in elevated concentrations in wastewater-impacted source waters. Due to high reactivity, reactions of aliphatic amines with ozone are likely to occur durin ...
PERGAMON-ELSEVIER SCIENCE LTD2019Effects of Ozone on the Photochemical and Photophysical Properties of Dissolved Organic Matter
Urs von Gunten, Frank Jonathan Leresche, Silvio Canonica
This study focused on the effects of ozonation on the photochemical and photophysical properties of dissolved organic matter (DOM). Upon ozonation, a decrease in DOM absorbance was observed in parallel with an increase in singlet oxygen (O-1(2)) and fluore ...
AMER CHEMICAL SOC2019Photoinduced disinfection in sunlit natural waters: Measurement of the second order inactivation rate constants between E-coli and photogenerated transient species
César Pulgarin, Stefanos Giannakis, Jean Arnaud Troyon
This work uncovers the implications of the estimation of exogenous inactivation rates for E. coli after the initial lag phase, and presents a strategy for the determination of the second-order inactivation rate constants (k2nd) of these bacteria with relev ...
PERGAMON-ELSEVIER SCIENCE LTD2018Conservation of vibrational coherence in ultrafast electronic relaxation: The case of diplatinum complexes in solution
Majed Chergui, Dominik Kinschel, Gerald Auböck, Roberto Monni, Kathrin Maria Aziz-Lange
We report the results of ultrafast transient absorption studies of tetrakis(l-pyrophosphito) diplatinate(II), Pt-2(mu-P(2)O(5)H2)(4) (Pt(pop)) and its perfluoroborated derivative Pt-2(mu-P2O5(BF2)(4) (Pt(pop-BF2)) in water and acetonitrile upon e ...
Elsevier2017Phototransformation of Acesulfame K in surface waters: Comparison of two techniques for the measurement of the second-order rate constants of indirect photodegradation, and modelling of photoreaction kinetics
By use of photochemical modelling we show that acesulfame K (ACE) can undergo photodegradation in surface waters, mainly by reaction with (OH)-O-center dot and possibly (CDOM)-C-3* (the triplet states of chromophoric dissolved organic matter). With the pos ...
Elsevier2017FeOx magnetization enhancing E-coli inactivation by orders of magnitude on Ag-TiO2 nanotubes under sunlight
César Pulgarin, Juan Kiwi, Arnaud Magrez, Ivica Zivkovic, Sami Rtimi, Stefanos Giannakis, Marco Mangayayam
Drastic bacterial enhancement was observed when the Ag(3%)-TiO2 nanotubes were modified with FeOx (3%) magnetic oxide. On bare TiO2- nanotubes a reduction of 0.21og(10)CFU was observed within one hour under simulated low intensity solar light. Under simila ...
Elsevier2017Versatile pyridine-2,6-bis-tetrazolate scaffolds for the formation of highly luminescent lanthanide complexes
Here we report the straightforward synthesis of the ligands L-tz, L-tzC8, L-tzPEG, L-tzAnis and L-=Anis presenting the same pyridine-bistetrazolate (pytz, L) chelating scaffold but different substituents on the para position of the pyridine ring. Its subst ...
Royal Society of Chemistry2016Origin of the Spin-Orbital Liquid State in a Nearly J=0 Iridate Ba3ZnIr2O9
Henrik Moodysson Rønnow, Martin Mansson, Paul Gregory Freeman
We show using detailed magnetic and thermodynamic studies and theoretical calculations that the ground state of Ba3ZnIr2O9 is a realization of a novel spin-orbital liquid state. Our results reveal that Ba3ZnIr2O9 with Ir5+ (5d(4)) ions and strong spin-orbi ...
2016Investigations of the non-adiabatic photophysics of Cu(I)-phenanthroline complexes
Cu(I)-phenanthrolines are an important class of metal-organic molecules that exhibits much promise for solar energy harvesting and solar-driven catalysis applications. Although many experimental studies have been performed calling for high-level simulation ...
EPFL2016Molecular Engineering of Iridium Blue Emitters Using Aryl N-Heterocyclic Carbene Ligands
Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Giulia Grancini, Aron Joel Huckaba, Sadig Aghazada
The synthesis of a new series of neutral bis[2-(2,4-difluorophen-2-yl)pyridine][1-(2-aryl)-3-methylimidazol-2-ylidene]iridium(III) complexes is reported. Each complex has been characterized by NMR spectroscopy, UV/Vis spectrophotometry, and cyclic voltamme ...
Wiley-Blackwell2016