Results 241 to 250 of about 3,199,989 (294)
Some of the next articles are maybe not open access.
A radical approach to radicals
Acta Crystallographica Section D Structural Biology, 2022Nitroxide radicals are characterized by a long-lived spin-unpaired electronic ground state and are strongly sensitive to their chemical surroundings. Combined with electron paramagnetic resonance spectroscopy, these electronic features have led to the widespread application of nitroxide derivatives as spin labels for use in studying protein structure ...
Youjia Liu +2 more
openaire +2 more sources
Journal of the American Chemical Society, 2001
We report the preparation and solid-state characterization of the perchlorophenalenyl radical (1). The radical is initially obtained as a yellow-green solid by reduction of the perchlorophenalenium salt (12(+)). This solid sublimes in a sealed tube to give black shiny hexagonal crystals of the perchlorophenalenyl radical (1).
Koutentis, Panayiotis Andreas +19 more
openaire +3 more sources
We report the preparation and solid-state characterization of the perchlorophenalenyl radical (1). The radical is initially obtained as a yellow-green solid by reduction of the perchlorophenalenium salt (12(+)). This solid sublimes in a sealed tube to give black shiny hexagonal crystals of the perchlorophenalenyl radical (1).
Koutentis, Panayiotis Andreas +19 more
openaire +3 more sources
Terrorism, radicalization and de-radicalization
Current Opinion in Psychology, 2016In this article, we review the literature and present a model of radicalization and de-radicalization. In this model, we distinguish three phases in radicalization: (1) a sensitivity phase, (2) a group membership phase and (3) an action phase. We describe the micro-level, meso-level and macro-level factors that influence the radicalization process in ...
Doosje, B. +5 more
openaire +3 more sources
Tuning radical reactivity for selective radical/radical cross-coupling
Science Bulletin, 2018Radical/radical cross-coupling represents a straightforward way for the construction of new chemical bonds in theory and has received more and more attention over the past several years. Until now, it is challenging to achieve the selective bond formation between two transient radicals since selective radical cross-coupling usually happens between ...
Shengchun, Wang, Shan, Tang, Aiwen, Lei
openaire +2 more sources
Annual Review of Physical Chemistry, 2011
Roaming is a recently verified unusual pathway to molecular products from unimolecular dissociation of an energized molecule. Here we present the evidence for this pathway for H2CO and CH3CHO. Theoretical analysis shows that this path visits the plateau region of the potential energy surface near dissociation to radical products.
Joel M, Bowman, Benjamin C, Shepler
openaire +2 more sources
Roaming is a recently verified unusual pathway to molecular products from unimolecular dissociation of an energized molecule. Here we present the evidence for this pathway for H2CO and CH3CHO. Theoretical analysis shows that this path visits the plateau region of the potential energy surface near dissociation to radical products.
Joel M, Bowman, Benjamin C, Shepler
openaire +2 more sources
Annual Review of Physical Chemistry, 1996
▪ Abstract Radical-radical reactions generally proceed on potential energy surfaces that have no maximum. Collisional deactivation leads to a stable molecular product; alternatively, radical or molecular products can be formed via dissociation channels additional to those regenerating the reactants.
openaire +1 more source
▪ Abstract Radical-radical reactions generally proceed on potential energy surfaces that have no maximum. Collisional deactivation leads to a stable molecular product; alternatively, radical or molecular products can be formed via dissociation channels additional to those regenerating the reactants.
openaire +1 more source
Nanomedicine, 2006
Nanotechnology has made significant advances in the reduction of free radical damage in the field of materials science. Cross-disciplinary interactions and the application of this technology to biological systems has led to the elucidation of novel nanoparticle antioxidants, which are the subject of this review. Recent reports suggest that cerium oxide
Beverly A, Rzigalinski +5 more
openaire +2 more sources
Nanotechnology has made significant advances in the reduction of free radical damage in the field of materials science. Cross-disciplinary interactions and the application of this technology to biological systems has led to the elucidation of novel nanoparticle antioxidants, which are the subject of this review. Recent reports suggest that cerium oxide
Beverly A, Rzigalinski +5 more
openaire +2 more sources
Generation and Radical–Radical Cross-Coupling of Alkenyloxy Radical
Organic LettersAlkene-attached oxygen radicals are rarely used, as highly reactive oxygen radicals are incompatible with the alkene moiety. The direct radical-radical cross-coupling of O radicals is also challenging (limited to N-O bond formation) because of the lack of suitable persistent radical species.
Yunquan Man, Bo Xu
openaire +2 more sources
Canadian Journal of Mathematics, 1977
The search for new radicals goes on. Recently R. L. Snider ([6], see page 216) introduced the following notion. Let α and β be any two radicals. A ring R will be said to be an (α : β) ring if for any ideal A of R, we have α (R/A) ≧ β (R/A).
Divinsky, N., Suliński, A.
openaire +2 more sources
The search for new radicals goes on. Recently R. L. Snider ([6], see page 216) introduced the following notion. Let α and β be any two radicals. A ring R will be said to be an (α : β) ring if for any ideal A of R, we have α (R/A) ≧ β (R/A).
Divinsky, N., Suliński, A.
openaire +2 more sources
Best Practice & Research Clinical Obstetrics & Gynaecology, 2005
The radical hysterectomy is the standard approach for the treatment of women with early cervical cancer. However, it has increasingly been recognized that a more individualized approach to treatment should be taken. In particular, careful pretreatment evaluation should reduce the number of women receiving adjuvant radiotherapy.
Cathrine M, Holland, Mahmood I, Shafi
openaire +2 more sources
The radical hysterectomy is the standard approach for the treatment of women with early cervical cancer. However, it has increasingly been recognized that a more individualized approach to treatment should be taken. In particular, careful pretreatment evaluation should reduce the number of women receiving adjuvant radiotherapy.
Cathrine M, Holland, Mahmood I, Shafi
openaire +2 more sources