TY - JOUR

T1 - Weakly Bound Environment of Molecular Oxygen as a Catalyst of Photooxidation

AU - Baklanov, A. V.

AU - Parker, D. H.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - In the review, the spectral and photochemical manifestations of the catalytic effect of a weakly bound environment on photoprocesses involving oxygen in a gas, solutions, and on the surface are examined in historical sequence. The progress in an experimental study of the nature of supramolecular photochemistry of weakly bound oxygen complexes associated with the use of X–O2 van der Waals complexes generated in molecular beams as a model system is considered. A review of the results of studying supramolecular photochemistry in X–O2 complexes using the velocity map imaging of photofragments is given. The nature of the “dramatic” enhancement of UV absorption in weakly bound oxygen complexes and the mechanism of photochemical processes provided by the “enhanced” absorption are discussed. Available experimental data and conclusions on the nature of absorption bands appearing in weakly bound X–O2 complexes, which give rise to the formation of singlet oxygen and other photooxidation intermediates, are considered.

AB - In the review, the spectral and photochemical manifestations of the catalytic effect of a weakly bound environment on photoprocesses involving oxygen in a gas, solutions, and on the surface are examined in historical sequence. The progress in an experimental study of the nature of supramolecular photochemistry of weakly bound oxygen complexes associated with the use of X–O2 van der Waals complexes generated in molecular beams as a model system is considered. A review of the results of studying supramolecular photochemistry in X–O2 complexes using the velocity map imaging of photofragments is given. The nature of the “dramatic” enhancement of UV absorption in weakly bound oxygen complexes and the mechanism of photochemical processes provided by the “enhanced” absorption are discussed. Available experimental data and conclusions on the nature of absorption bands appearing in weakly bound X–O2 complexes, which give rise to the formation of singlet oxygen and other photooxidation intermediates, are considered.

KW - double spin-flip

KW - singlet oxygen

KW - supramolecular transitions

KW - van der Waals complexes of oxygen X-O

KW - velocity map imaging

UR - http://www.scopus.com/inward/record.url?scp=85083392748&partnerID=8YFLogxK

U2 - 10.1134/S0023158420020019

DO - 10.1134/S0023158420020019

M3 - Article

AN - SCOPUS:85083392748

VL - 61

SP - 174

EP - 197

JO - Kinetics and Catalysis

JF - Kinetics and Catalysis

SN - 0023-1584

IS - 2

ER -