Picosecond Flash Photolysis of Carbonyl Complexes ... Ruthenium(II} Porphyrin Cation Radicals
... Abstract: With picosecond transient absorption techniques we have investigated photolysis of the Ru(lI) octaethylporphyrin 1r cation radicals Ru(OEP+·)CO(L): L = EtOH (4a). py (4b). 1m (4c). Br- (4d). Excitation with 35-ps flashes at 532 nm results in the formation and decay of transient states havi ...
... Abstract: With picosecond transient absorption techniques we have investigated photolysis of the Ru(lI) octaethylporphyrin 1r cation radicals Ru(OEP+·)CO(L): L = EtOH (4a). py (4b). 1m (4c). Br- (4d). Excitation with 35-ps flashes at 532 nm results in the formation and decay of transient states havi ...
Atomic Spectroscopy
... produced when these transitions from higher energy states to lower energy states occur. The wavelength at which these energy shifts take place are exactly the same for both emission and absorption. Thus, atomic emission spectroscopy is a process in which the light emitted by excited atoms or ions is ...
... produced when these transitions from higher energy states to lower energy states occur. The wavelength at which these energy shifts take place are exactly the same for both emission and absorption. Thus, atomic emission spectroscopy is a process in which the light emitted by excited atoms or ions is ...
Hybrid superconductor junctions with diluted PtNi ferromagnetic interlayer Taras Golod
... S-N-F structure can be replaced by S-F structure with diluted F in which the superconducting state coexists with ferromagnetic. Both hybrid S-F-S and spin-valve devices put strong constrains on the F layer. Technologically the F layer should be thick enough, ∼ 10nm, to form a uniform Josephson barri ...
... S-N-F structure can be replaced by S-F structure with diluted F in which the superconducting state coexists with ferromagnetic. Both hybrid S-F-S and spin-valve devices put strong constrains on the F layer. Technologically the F layer should be thick enough, ∼ 10nm, to form a uniform Josephson barri ...
Comparison of electronic structures of mass
... clusters soft-landed on sputtered HOPG surfaces (mean de- various adsorption sites by Ag clusters at higher coverages. position energy: 2.6 eV)~ At the initial stage of Ag deposi- Decrease of the FWHM of the Ag 3d peaks upon agglomtion, the intensity of the Ag 3d peak grows with increas- eration can ...
... clusters soft-landed on sputtered HOPG surfaces (mean de- various adsorption sites by Ag clusters at higher coverages. position energy: 2.6 eV)~ At the initial stage of Ag deposi- Decrease of the FWHM of the Ag 3d peaks upon agglomtion, the intensity of the Ag 3d peak grows with increas- eration can ...
Effective Charge Transfer Distances in Cyanide
... The proportionality factor on the right-hand side of eq 7 depends only on the field strength F and the angle χ, both experimental parameters, and on the angle ζA between ∆µ b and m b , which can be measured, so this ratio of experimental data provides an independent approach for obtaining |∆µ|. The ...
... The proportionality factor on the right-hand side of eq 7 depends only on the field strength F and the angle χ, both experimental parameters, and on the angle ζA between ∆µ b and m b , which can be measured, so this ratio of experimental data provides an independent approach for obtaining |∆µ|. The ...
Unusual deprotonated alkynyl hydrogen bonding in metal
... deprotonation of the terminal alkynes is initiated above 300 K, resulting in room-temperature stable structures in which the partially negatively charged alkynyl groups (δ−CC−R) interact strongly with both the surface and the neighboring aromatic rings. This new binding motif is identified as a trif ...
... deprotonation of the terminal alkynes is initiated above 300 K, resulting in room-temperature stable structures in which the partially negatively charged alkynyl groups (δ−CC−R) interact strongly with both the surface and the neighboring aromatic rings. This new binding motif is identified as a trif ...
Ab initio embedded cluster study of optical second harmonic
... and boiling points, exhibiting high electrical conductivity, etc. Indeed, there are four such series of TMs which can be distinguished depending on the partially filled d–orbitals. Thus, for the first TMs series e.g. Scandium (Sc) through Copper (Cu), the electronic configuration of the outer orbita ...
... and boiling points, exhibiting high electrical conductivity, etc. Indeed, there are four such series of TMs which can be distinguished depending on the partially filled d–orbitals. Thus, for the first TMs series e.g. Scandium (Sc) through Copper (Cu), the electronic configuration of the outer orbita ...
Quantum Mechanics and Solid State Physics for Electric
... The Master Course Physics 3 for Electrical Engineers is an introductory lecture to the fundamental concepts of modern physics. Here we present the basis of the disciplines Quantum Mechanics and Solid State Physics, all in one semester. As both of these topics are very broad we had to restrict the ma ...
... The Master Course Physics 3 for Electrical Engineers is an introductory lecture to the fundamental concepts of modern physics. Here we present the basis of the disciplines Quantum Mechanics and Solid State Physics, all in one semester. As both of these topics are very broad we had to restrict the ma ...
Vacuum Ultraviolet Spectroscopy and Photochemistry of Zinc
... D2, Zn/CH4, and Zn/Ar systems are presented together in Figure S1 of the Supporting Information. In the Gaussian fits shown in Figure S1 three components, all with the same line width, were used on a given system. With the exception of Zn/ CH4, where a minor blue site exits, the use of only three com ...
... D2, Zn/CH4, and Zn/Ar systems are presented together in Figure S1 of the Supporting Information. In the Gaussian fits shown in Figure S1 three components, all with the same line width, were used on a given system. With the exception of Zn/ CH4, where a minor blue site exits, the use of only three com ...
Electrochromic Shift of Chlorophyll Absorption in Photosystem I from
... purple bacterial reaction center (Zinth and Kaiser, 1993; Woodbury and Allen, 1995). The primary charge separation PH / P1H2 requires 2–3 ps at room temperature, and the subsequent electron transfer to the primary quinone QA (which is analogous to A1 in PS I) exhibits multiphasic kinetics (80–300 ps ...
... purple bacterial reaction center (Zinth and Kaiser, 1993; Woodbury and Allen, 1995). The primary charge separation PH / P1H2 requires 2–3 ps at room temperature, and the subsequent electron transfer to the primary quinone QA (which is analogous to A1 in PS I) exhibits multiphasic kinetics (80–300 ps ...
NMR and Parity Violation Anomalous Temperature Dependence in
... acids and L-sugars. This broken symmetry is now believed to be a feature of fundamental physics a result of symmetry-breaking induced by the weak force, which makes one enantiomer slightly more stable than the other. An amplification mechanism based on quantum mechanical tunnelling could give rise ...
... acids and L-sugars. This broken symmetry is now believed to be a feature of fundamental physics a result of symmetry-breaking induced by the weak force, which makes one enantiomer slightly more stable than the other. An amplification mechanism based on quantum mechanical tunnelling could give rise ...
University of Groningen Light-Induced Charged and Trap States in
... all other neutral and charged multiple exciton states. The nonlinear photoluminescence (NLPL) is thus obtained by subtracting the single exciton decay curve, Ax(t), from the overall PL intensity. The transient in the low excitation regime N=0.045 is taken as the reference function Ax(t) up to a mul ...
... all other neutral and charged multiple exciton states. The nonlinear photoluminescence (NLPL) is thus obtained by subtracting the single exciton decay curve, Ax(t), from the overall PL intensity. The transient in the low excitation regime N=0.045 is taken as the reference function Ax(t) up to a mul ...
Hydride ions in oxide hosts hidden by hydroxide ions
... positions for protons and metallic hydrides. Indeed, usually diso(H þ ) varies from þ 20 to 0 p.p.m. (ref. 32), whereas metallic hydrides, such as TiH2, typically exhibit diso(H ) below 0 p.p.m. (ref. 28). Our data suggest that electron density should be larger around H þ than around H nuclei, p ...
... positions for protons and metallic hydrides. Indeed, usually diso(H þ ) varies from þ 20 to 0 p.p.m. (ref. 32), whereas metallic hydrides, such as TiH2, typically exhibit diso(H ) below 0 p.p.m. (ref. 28). Our data suggest that electron density should be larger around H þ than around H nuclei, p ...
Introduction to Isotope Effect
... Fig. 2.3 Comparison between charge(ρch ) and magnetization (ρm ) for the proton (a) and neutron (b). Both densities are normalized to drr2 ρ(r) = 1 (after [5–7]) ...
... Fig. 2.3 Comparison between charge(ρch ) and magnetization (ρm ) for the proton (a) and neutron (b). Both densities are normalized to drr2 ρ(r) = 1 (after [5–7]) ...
Modification of the surface electronic and chemical properties of Pt
... surface properties, and under what conditions does the ligand effect dominate? The purpose of the present paper is to identify conditions where the ligand effect can have a dominant role in the modification of the chemical properties of a bimetallic surface. In this respect, it is complementary to t ...
... surface properties, and under what conditions does the ligand effect dominate? The purpose of the present paper is to identify conditions where the ligand effect can have a dominant role in the modification of the chemical properties of a bimetallic surface. In this respect, it is complementary to t ...
2 Phase Diagram of 2DES on Liquid Helium
... bound to the surface of liquid helium-4. The physical properties of the 2DES are probed through the excitation of normal modes in the radio frequency range 10 MHz-1GHz. The normal mode spectra are expected to undergo a radical change at the transition from liquid to crystal, the so-called Wigner tra ...
... bound to the surface of liquid helium-4. The physical properties of the 2DES are probed through the excitation of normal modes in the radio frequency range 10 MHz-1GHz. The normal mode spectra are expected to undergo a radical change at the transition from liquid to crystal, the so-called Wigner tra ...
The role of electronic symmetry in charge-transfer-to
... More recent experiments by Bradforth and co-workers have explored the dynamics following direct one-photon excitation into the CTTS band of aqueous iodide, and found rapid formation of detached solvated electrons.2 The simulations of Sheu and Rossky,6 – 8 as well as similar calculations for aqueous ...
... More recent experiments by Bradforth and co-workers have explored the dynamics following direct one-photon excitation into the CTTS band of aqueous iodide, and found rapid formation of detached solvated electrons.2 The simulations of Sheu and Rossky,6 – 8 as well as similar calculations for aqueous ...
The AntIer-Townes effect revisited
... A few experiments have been also performed with atomic vapors [7]. The Doppler width of opticallines is generally much larger than the natural width of the atomic states. As a consequence of the large Doppler shifts which modify WL and W for a moving atom, the Autler- Townes splitting of cline gener ...
... A few experiments have been also performed with atomic vapors [7]. The Doppler width of opticallines is generally much larger than the natural width of the atomic states. As a consequence of the large Doppler shifts which modify WL and W for a moving atom, the Autler- Townes splitting of cline gener ...
In Situ Vanadium K-Edge and Tungsten LIII-Edge X
... acquire in situ XAFS data. Two of these peaks at nearly the same potentials were also found for the immobilized carbonsupported material in the Pt gauze in the same cell where the in situ XAFS measurements were carried out (see panel C, Figure 1). The large current observed at potentials more negati ...
... acquire in situ XAFS data. Two of these peaks at nearly the same potentials were also found for the immobilized carbonsupported material in the Pt gauze in the same cell where the in situ XAFS measurements were carried out (see panel C, Figure 1). The large current observed at potentials more negati ...
Small Molecules—Big Data - American Chemical Society
... the density of (ro)vibrational states.39 The experimental determination of the density of states and its integral, the total number of accessible states, is a formidable challenge at high(er) energies for all but the smallest molecules. Recent advances in high-resolution molecular spectroscopy led t ...
... the density of (ro)vibrational states.39 The experimental determination of the density of states and its integral, the total number of accessible states, is a formidable challenge at high(er) energies for all but the smallest molecules. Recent advances in high-resolution molecular spectroscopy led t ...
Auger electron spectroscopy
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Auger electron spectroscopy (AES; pronounced [oʒe] in French) is a common analytical technique used specifically in the study of surfaces and, more generally, in the area of materials science. Underlying the spectroscopic technique is the Auger effect, as it has come to be called, which is based on the analysis of energetic electrons emitted from an excited atom after a series of internal relaxation events. The Auger effect was discovered independently by both Lise Meitner and Pierre Auger in the 1920s. Though the discovery was made by Meitner and initially reported in the journal Zeitschrift für Physik in 1922, Auger is credited with the discovery in most of the scientific community. Until the early 1950s Auger transitions were considered nuisance effects by spectroscopists, not containing much relevant material information, but studied so as to explain anomalies in x-ray spectroscopy data. Since 1953 however, AES has become a practical and straightforward characterization technique for probing chemical and compositional surface environments and has found applications in metallurgy, gas-phase chemistry, and throughout the microelectronics industry.