Rate Constants for the Decay and Reactions of the Lowest Electronically Excited Singlet State of Molecular Oxygen in Solution. An Expanded and Revised Compilation

  title={Rate Constants for the Decay and Reactions of the Lowest Electronically Excited Singlet State of Molecular Oxygen in Solution. An Expanded and Revised Compilation},
  author={Francis Wilkinson and W. P. Helman and AlbertaB. Ross},
  journal={Journal of Physical and Chemical Reference Data},
An expanded and revised compilation on the reactivity of singlet oxygen, the lowest electronically excited singlet state of molecular oxygen, 1O2*(1Δg), in fluid solution is presented, which supersedes the publication of Wilkinson and Brummer, J. Phys. Chem. Ref. Data 10, 809 (1981). Rate constants for the chemical reaction and physical deactivation of singlet oxygen available through 1993 have been critically compiled. Solvent deactivation rates (kd) are tabulated for 145 solvents or solvent… 
Determination of the rate constant of oxygen quenching of the excited states of molecules from the singlet oxygen luminescence
We have pioneered a method of determining the rate constant of quenching of the excited electronic states of molecules by molecular oxygen from measurements of the kinetics of photosensitized
Electron transfer reactions of singlet molecular oxygen with phenols
The correlation of the reactive component of the bimolecular quenching rate constant, kr, with ΔG for reactions of singlet molecular oxygen with phenols is interpreted in terms of classical and
Photochemical investigation of the IR absorption bands of molecular oxygen in organic and aqueous environment.
  • A. Krasnovsky, A. S. Kozlov, Ya. V. Roumbal
  • Chemistry
    Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology
  • 2012
It is shown that the weak IR absorption bands corresponding to the forbidden triplet-singlet transitions in oxygen molecules can be reliably studied in air-saturated solvents under ambient conditions using measurements of the photooxygenation rates of singlet oxygen traps upon direct excitation of oxygen molecules by IR diode lasers.
Temperature effects on the solvent-dependent deactivation of singlet oxygen.
The current study reveals that tau(Delta), in fact, can depend quite significantly on temperature in certain solvents (e.g., D(2)O and benzene-d(6).
Aqueous Reactions of Organic Triplet Excited States with Atmospheric Alkenes
Abstract. Triplet excited states of organic matter, a.k.a. triplets, are formed when brown carbon absorbs light. While triplets can be important photooxidants in atmospheric drops and particles
Influence of the nuclear and extranuclear substitution on the singlet molecular oxygen [O2(1Δg)]-mediated photooxidation of tyrosine derivatives: A kinetic study
The variation of solvent polarity and pH of the reaction medium confirm that the presence of the ionized phenolate group in tyrosine, clearly dominates the quenching process.
Correlation between excited-state intramolecular proton-transfer and singlet-oxygen quenching activities in 1-(acylamino)anthraquinones.
Intramolecularly hydrogen-bonded hydroxyanthraquinones found in aloe show a similar positive and linear correlation, which can be understood in the same way as ESIPT.
Dissociative excitation energy transfer in the reactions of protonated cysteine and tryptophan with electronically excited singlet molecular oxygen (a1Δ(g)).
Most trajectories formed intermediate complexes with significant lifetime, implying the importance of complex formation at the early stage of the reaction, implying a complex-mediated mechanism where a long-lived complex is critical for converting the electronic energy of (1)O(2) to the form of internal energy needed to drive complex dissociation.