Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022211961> ?p ?o ?g. }
Showing items 1 to 95 of
95
with 100 items per page.
- W2022211961 endingPage "6371" @default.
- W2022211961 startingPage "6362" @default.
- W2022211961 abstract "The α-proton hyperfine coupling observed by electron paramagnetic resonance (EPR) spectroscopy on the radical •CH(COOH)2 in irradiated crystals of malonic acid, CH2(COOH)2, has served as a standard against which hundreds of observations of similar couplings have been held and scaled. The major doublet of the malonic acid radical is accompanied by less intense “forbidden” (f) α-proton transitions and “spin-flip” (s) transitions due to weakly interacting protons. Both s and f transition lines exhibit microwave power saturation behaviors different from that of the major doublet. At high microwave power, the prominence of these s and f lines may be misinterpreted as originating from different radical species. Computer simulations could help distinguish between the different cases, but no computer simulation programs taking into account the microwave power saturation case are commonly available. On the basis of classical line-shape theory, an algorithm describing the microwave power dependence of an EPR line shape has been developed and implemented in an existing simulation program. To test this new program, malonic acid was selected because of the simplicity of its EPR spectra. However, sufficiently detailed information about the hyperfine coupling parameters for a satisfactory simulation of the room-temperature data (including s and f lines) was not available in the literature. Therefore, a detailed room-temperature EPR/ENDOR study on a single crystal of malonic acid was performed. In addition to the major α-proton coupling, seven weaker proton interactions have been characterized and partly identified. Simulations under nonsaturating conditions reproduce very well all features of the experimental EPR spectra. Simulations under saturating conditions similarly reproduce the power-dependent EPR spectra and yield information about the relaxation behavior of the radical system, which is amenable to verification using other spin-resonance methods." @default.
- W2022211961 created "2016-06-24" @default.
- W2022211961 creator A5013474663 @default.
- W2022211961 creator A5045936095 @default.
- W2022211961 creator A5055600838 @default.
- W2022211961 creator A5069765632 @default.
- W2022211961 date "2000-06-17" @default.
- W2022211961 modified "2023-10-14" @default.
- W2022211961 title "Weakly Coupled Proton Interactions in the Malonic Acid Radical: Single Crystal ENDOR Analysis and EPR Simulation at Microwave Saturation" @default.
- W2022211961 cites W1968644257 @default.
- W2022211961 cites W1974988336 @default.
- W2022211961 cites W1978340586 @default.
- W2022211961 cites W1985472857 @default.
- W2022211961 cites W1990112497 @default.
- W2022211961 cites W1999543598 @default.
- W2022211961 cites W2002771305 @default.
- W2022211961 cites W2008504507 @default.
- W2022211961 cites W2022578594 @default.
- W2022211961 cites W2023349788 @default.
- W2022211961 cites W2029068256 @default.
- W2022211961 cites W2042408370 @default.
- W2022211961 cites W2050385840 @default.
- W2022211961 cites W2072172174 @default.
- W2022211961 cites W2094671304 @default.
- W2022211961 cites W2952170876 @default.
- W2022211961 doi "https://doi.org/10.1021/jp000282p" @default.
- W2022211961 hasPublicationYear "2000" @default.
- W2022211961 type Work @default.
- W2022211961 sameAs 2022211961 @default.
- W2022211961 citedByCount "53" @default.
- W2022211961 countsByYear W20222119612012 @default.
- W2022211961 countsByYear W20222119612013 @default.
- W2022211961 countsByYear W20222119612014 @default.
- W2022211961 countsByYear W20222119612015 @default.
- W2022211961 countsByYear W20222119612017 @default.
- W2022211961 countsByYear W20222119612018 @default.
- W2022211961 countsByYear W20222119612019 @default.
- W2022211961 countsByYear W20222119612021 @default.
- W2022211961 countsByYear W20222119612022 @default.
- W2022211961 crossrefType "journal-article" @default.
- W2022211961 hasAuthorship W2022211961A5013474663 @default.
- W2022211961 hasAuthorship W2022211961A5045936095 @default.
- W2022211961 hasAuthorship W2022211961A5055600838 @default.
- W2022211961 hasAuthorship W2022211961A5069765632 @default.
- W2022211961 hasConcept C114614502 @default.
- W2022211961 hasConcept C121332964 @default.
- W2022211961 hasConcept C131538251 @default.
- W2022211961 hasConcept C178790620 @default.
- W2022211961 hasConcept C184779094 @default.
- W2022211961 hasConcept C185592680 @default.
- W2022211961 hasConcept C187961010 @default.
- W2022211961 hasConcept C2776596982 @default.
- W2022211961 hasConcept C33923547 @default.
- W2022211961 hasConcept C44838205 @default.
- W2022211961 hasConcept C46141821 @default.
- W2022211961 hasConcept C4839761 @default.
- W2022211961 hasConcept C54516573 @default.
- W2022211961 hasConcept C62520636 @default.
- W2022211961 hasConcept C9930424 @default.
- W2022211961 hasConceptScore W2022211961C114614502 @default.
- W2022211961 hasConceptScore W2022211961C121332964 @default.
- W2022211961 hasConceptScore W2022211961C131538251 @default.
- W2022211961 hasConceptScore W2022211961C178790620 @default.
- W2022211961 hasConceptScore W2022211961C184779094 @default.
- W2022211961 hasConceptScore W2022211961C185592680 @default.
- W2022211961 hasConceptScore W2022211961C187961010 @default.
- W2022211961 hasConceptScore W2022211961C2776596982 @default.
- W2022211961 hasConceptScore W2022211961C33923547 @default.
- W2022211961 hasConceptScore W2022211961C44838205 @default.
- W2022211961 hasConceptScore W2022211961C46141821 @default.
- W2022211961 hasConceptScore W2022211961C4839761 @default.
- W2022211961 hasConceptScore W2022211961C54516573 @default.
- W2022211961 hasConceptScore W2022211961C62520636 @default.
- W2022211961 hasConceptScore W2022211961C9930424 @default.
- W2022211961 hasIssue "27" @default.
- W2022211961 hasLocation W20222119611 @default.
- W2022211961 hasOpenAccess W2022211961 @default.
- W2022211961 hasPrimaryLocation W20222119611 @default.
- W2022211961 hasRelatedWork W1519335778 @default.
- W2022211961 hasRelatedWork W1612372673 @default.
- W2022211961 hasRelatedWork W1997227098 @default.
- W2022211961 hasRelatedWork W2002022340 @default.
- W2022211961 hasRelatedWork W2013570628 @default.
- W2022211961 hasRelatedWork W2059660905 @default.
- W2022211961 hasRelatedWork W2066914746 @default.
- W2022211961 hasRelatedWork W2320131791 @default.
- W2022211961 hasRelatedWork W2912458707 @default.
- W2022211961 hasRelatedWork W2984375789 @default.
- W2022211961 hasVolume "104" @default.
- W2022211961 isParatext "false" @default.
- W2022211961 isRetracted "false" @default.
- W2022211961 magId "2022211961" @default.
- W2022211961 workType "article" @default.