sp3 C–H Arylation and Alkylation Enabled by the Synergy of Triplet Excited Ketones and Nickel Catalysts

Y Shen, Y Gu, R Martin - Journal of the American Chemical …, 2018 - ACS Publications
Triplet ketone sensitizers are of central importance within the realm of photochemical
transformations. Although the radical-type character of triplet excited states of diaryl ketones …

Effect of Solvent on the Excited‐state Photophysical Properties of Curcumin¶

SM Khopde, K Indira Priyadarsini… - Photochemistry and …, 2000 - Wiley Online Library
ABSTRACT Photophysical properties of curcumin, 1, 7‐bis‐(4‐hydroxy‐3‐methoxy phenyl)‐
1, 6‐heptadiene‐2, 5‐dione, a pigment found in the rhizomes of Curcuma longa (turmeric) …

Mechanistic insights on the photosensitized chemistry of a fatty acid at the air/water interface

L Tinel, S Rossignol, A Bianco… - … science & technology, 2016 - ACS Publications
Interfaces are ubiquitous in the environment and many atmospheric key processes, such as
gas deposition, aerosol, and cloud formation are, at one stage or another, strongly impacted …

Aquatic photolysis of ketoprofen generates products with photosensitizing activity and toxicity

L Wang, Y Zheng, Y Zhou, J Lu, JM Chovelon, Y Ji - Water Research, 2022 - Elsevier
Ketoprofen (KTF) is a nonsteroidal anti-inflammatory drug frequently detected in natural and
engineering waters. Because KTF is particularly photolabile (half-life∼ 4 min), knowledge of …

Diaryl ketones as photoactivators

J Perez-Prieto, RE Galian… - Mini-Reviews in Organic …, 2006 - ingentaconnect.com
The lowest lying triplet excited states of diaryl ketones are usually long lived and can be
photochemically generated with high quantum yields. Hence, compounds of this type are …

Ultrafast Time-Resolved Study of Photophysical Processes Involved in the Photodeprotection of p-Hydroxyphenacyl Caged Phototrigger Compounds

C Ma, WM Kwok, WS Chan, P Zuo… - Journal of the …, 2005 - ACS Publications
A combined femtosecond Kerr gated time-resolved fluorescence (fs-KTRF) and picosecond
Kerr gated time-resolved resonance Raman (ps-KTR3) study is reported for two p …

Direct and nitrite-sensitized indirect photolysis of effluent-derived phenolic contaminants under UV 254 irradiation

Y Li, L Wang, H Xu, J Lu, JM Chovelon… - … Science: Processes & …, 2022 - pubs.rsc.org
UV254 photolysis has increasingly been utilized for disinfection of water-born pathogens in
wastewater. During disinfection, wastewater-derived trace organic contaminants, such as …

Excited state kinetics in crystalline solids: self-quenching in nanocrystals of 4, 4′-disubstituted benzophenone triplets occurs by a reductive quenching mechanism

G Kuzmanich, S Simoncelli, MN Gard… - Journal of the …, 2011 - ACS Publications
We report an efficient triplet state self-quenching mechanism in crystals of eight
benzophenones, which included the parent structure (1), six 4, 4′-disubstituted compounds …

Spectral and molecular modeling investigations of supramolecular complexes of mefenamic acid and aceclofenac with α-and β-cyclodextrin

S Siva, SK Nayaki, N Rajendiran - … Acta Part A: Molecular and Biomolecular …, 2017 - Elsevier
Inclusion complexes of mefenamic acid (MFA) and aceclofenac (ALF) with α-and β-
cyclodextrins (CDs) in aqueous medium were investigated by absorption, fluorescence, time …

How and when does an unusual and efficient photoredox reaction of 2-(1-hydroxyethyl) 9, 10-anthraquinone occur? A combined time-resolved spectroscopic and DFT …

J Ma, T Su, MD Li, W Du, J Huang, X Guan… - Journal of the …, 2012 - ACS Publications
The photophysics and photochemical reactions of 2-(1-hydroxyethyl) 9, 10-anthroquinone (2-
HEAQ) were studied using femtosecond transient absorption (fs-TA), nanosecond transient …