8 Result(s)
within
Article
A. Pöppl
English
Organic Chemistry
Physical Chemistry
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Article
Adaptive response of a metal–organic framework through reversible disorder–disorder transitions
The ultrahigh porosity and varied functionalities of porous metal–organic frameworks make them excellent candidates for applications that range widely from gas storage and separation to catalysis and sensing. ...
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Article
EPR Evidence of Unusual Dopant Valency States in Nanocrystalline Er-doped CeO2
The structure and oxidation state of the Er dopant cation in CeO2 single crystal and nanocrystals with size ranging from 22 to 300 nm are studied using electron paramagnetic resonance (EPR) spectroscopy at X- and...
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Article
A Q-band pulsed ENDOR spectrometer for the study of transition metal ion complexes in solids
We describe the design of a pulsed electron nuclear double resonance (ENDOR) spectrometer operating at Q-band frequencies (35 GHz) for studies of transition metal ion complexes in the temperature range between...
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Article
Analysis of correlation patterns in hyperfine sublevel correlation spectroscopy ofS=1/2,I=3/2 systems
The properties of two-dimensional four-pulse electron spin echo envelope modulation spectra of nuclei with nuclear spinI=3/2 in disordered systems are discussed by means of calculated lithium hyperfine sublevel c...
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Article
Analysis of anisotropic hyperfine interaction distributions in two-dimensional four- and five-pulse electron spin echo envelope modulation spectra of protons in single crystals
The effect of the distribution of anisotropic hyperfine interaction on the cross peak line shape of protons in single crystal two-dimensional four-pulse electron spin echo envelope modulation spectra are discu...
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Article
Four pulse electron spin echo modulation studies of Cu(II) complexes in MCM-41 silica tube materials
The coordination geometry of Cu(II) complexes with water and ammonia has been studied by four pulse electron spin echo modulation spectroscopy in siliceous (L)Cu-MCM-41 and in aluminum-containing (L)Cu-AlMCM-4...
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Article
Determination of the deuterium content of deuterated betaine arsenate by electron spin echo envelope modulation
An alternative method for the determination of the deuterium content in the hydrogen bonds of ferroelectric/antiferroelectric deuterated betaine arsenate is presented. Carbon radicals formed by gamma irradiati...
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Article
1H one- and two-dimensional five-pulse ESEEM investigations on a radiation center in betaine phosphite single crystals
1D and 2D five-pulse ESEEM experiments on a PO 3 2− center in γ-irradiated betaine phosphite are presented to study the protons bound to the radical in more detail. ...
