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UV photo decomposition of azidomethyl methylsulfide (AMMS) yields to a transient S-methylthiaziridine which rapidly evolves to S-methyl-N-sulfenylmethanimine at 10K. This species was detected by infrared matrix isolation spectroscopy. The mechanism of the photoreaction of AMMS has been investigated by a combined approach, using low temperature matrix isolation FTIR spectroscopy in conjunction with two theoretical methods, namely complete active space self-consistent field (CASSCF) and multi-configurational second-order perturbation (MS-CASPT2). The key step of the reaction is governed by a S2/S1 conical intersection localized in the neighboring of the singlet nitrene minimum which is formed in the first reaction step of the photolysis, that is, N2 elimination from AMMS. Full assignment of the observed infrared spectra of AMMS has been carried out based on comparison with DFT and second-order perturbation Møller-Plesset (MP2) methods.
This article was published in the following journal.
Name: The journal of physical chemistry. A
Synthesis, characterization and evaluation of visible light active cadmium sulfide-graphitic carbon nitride nanocomposite: A prospective solar light harvesting photo-catalyst for the deactivation of waterborne pathogen.
Cadmium sulfide-graphitic carbon nitride nanocomposite was synthesized by pulsed laser ablation in liquid, and it was found from the results of optical and morphological characterizations that the pro...
The fate of a photo-excited molecule is often strongly influenced by electronic degeneracies, such as conical intersections, which break the Born-Oppenheimer separation of electronic and nuclear motio...
Benzene cation is a prototypical complex system that exhibits ultrafast conical intersections of different electronic states located close to the Franck-Condon region, yet little information is availa...
Conical intersections are ubiquitous in photochemical processes, where nonadiabatic transfer induces ultrafast nonradiative decay from an excited state. Although they eluded experimental detection unt...
An amphiphilic polymer (CmPOX) based on poly(2-methyl-2-oxazoline) linked to a hydrophobic part composed of an aliphatic chain ending with a photo-active coumarin group has been synthesized. It exhibi...
Aim of this study is to compare cardiopulmonary response to conical-PEP breathing during exercise in older people.
This extended access study will assess the long-term safety and tolerability of bardoxolone methyl in qualified patients with chronic kidney disease (CKD) who previously participated in on...
Antifungal shampoos have been used as supplements to oral griseofulvin to help eradicate tinea capitis (also known as ringworm of the scalp) more quickly. While selenium sulfide shampoo h...
The aim of this study to investigate the efficacy of a home-base exercise program with a new conical PEP device on physical performance and health related quality of life in COPD patients.
3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-4-methyl-5-(4,6,8,8-tetrahydroxy-3,5,7-trioxa-4,6,8-triphosphaoct-1-yl)thiazolium hydroxide, inner salt, P,P',P''-trioxide. The triphosphate ester of thiamine. In Leigh's disease, this compound is present in decreased amounts in the brain due to a metabolic block in its formation.
3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2- hydroxyethyl)-4-methylthiazolium chloride.
An enzyme that catalyzes the reactivation by light of UV-irradiated DNA. It breaks two carbon-carbon bonds in PYRIMIDINE DIMERS in DNA.
The family Passeridae comprised of small, mainly brown and grey seed-eating birds with conical bills.
Addition of methyl groups to DNA. DNA methyltransferases (DNA methylases) perform this reaction using S-ADENOSYLMETHIONINE as the methyl group donor.
Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...