Ionized and neutral donor bound excitons: Haynes´ rule
... the localization energies of ionized donor bound excitons compared to the neutral donor bound ones has already been outlined in the publication of Merz et al8. Another interesting point is the I10 recombination6, which from the localization energy is explainable as a D0X recombination according to H ...
... the localization energies of ionized donor bound excitons compared to the neutral donor bound ones has already been outlined in the publication of Merz et al8. Another interesting point is the I10 recombination6, which from the localization energy is explainable as a D0X recombination according to H ...
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... This thesis presents results from experiments of ultracold atomic Fermi gases with repulsive interaction. Itinerant ferromagnetism was studied by simulating the Stoner model with a strongly interacting Fermi gas of ultracold atoms. We observed nonmonotonic behavior of lifetime, kinetic energy, and s ...
... This thesis presents results from experiments of ultracold atomic Fermi gases with repulsive interaction. Itinerant ferromagnetism was studied by simulating the Stoner model with a strongly interacting Fermi gas of ultracold atoms. We observed nonmonotonic behavior of lifetime, kinetic energy, and s ...
Introduction to Qualitative Analysis
... Chemical analysis can be either qualitative or quantitative in nature. In qualitative analysis we work to identify the substances present in a given sample. We are not concerned with the quantity of each substance, but only whether certain substances are present or absent. On the other hand, in quan ...
... Chemical analysis can be either qualitative or quantitative in nature. In qualitative analysis we work to identify the substances present in a given sample. We are not concerned with the quantity of each substance, but only whether certain substances are present or absent. On the other hand, in quan ...
231. - Department of Chemistry
... the rate of ligation with N2 [14], N2O [15], CO [15], and NH3 [16] is enhanced by a factor of ⬎103, ⬃10, ⬎104, and ⬃102, respectively, in helium bath gas at 0.35 Torr. We have also investigated the chemistry of (c-C5H5)2Fe⫹ but this ion was found to be unreactive with the ligands used in this study. ...
... the rate of ligation with N2 [14], N2O [15], CO [15], and NH3 [16] is enhanced by a factor of ⬎103, ⬃10, ⬎104, and ⬃102, respectively, in helium bath gas at 0.35 Torr. We have also investigated the chemistry of (c-C5H5)2Fe⫹ but this ion was found to be unreactive with the ligands used in this study. ...
Chem 150 Unit 2 - Hydrocarbons & Functional Groups
... • Esters, on the other hand, produce the sweet, often pleasant order associated with flowers, perfumes and various natural and artificial flavorings. The next slide shows Figure 4.24 from Raymond, which gives some specific examples. ...
... • Esters, on the other hand, produce the sweet, often pleasant order associated with flowers, perfumes and various natural and artificial flavorings. The next slide shows Figure 4.24 from Raymond, which gives some specific examples. ...
Intermolecular interactions
... For a real gas with low number density (n = N/V small) an approximate expression can be obtained for the configurational partition function. Take the average potential energy with β = 1/kT , which satisfies the following ...
... For a real gas with low number density (n = N/V small) an approximate expression can be obtained for the configurational partition function. Take the average potential energy with β = 1/kT , which satisfies the following ...
Periodic table Periodic Trends
... An oxide is formed from the combination of an element with oxygen Use the charge of a metal cation to deduce the chemical formula of a metal oxide: • Na+ combines with O2- to form Na2O • Ca2+ combines with O2- to form CaO • Al3+ combines with O2- to form Al2O3 Oxides of metals are basic: they react ...
... An oxide is formed from the combination of an element with oxygen Use the charge of a metal cation to deduce the chemical formula of a metal oxide: • Na+ combines with O2- to form Na2O • Ca2+ combines with O2- to form CaO • Al3+ combines with O2- to form Al2O3 Oxides of metals are basic: they react ...
Chapter 18. Molecular interactions
... • An electric dipole moment µ consists of two equal and opposite charges, q , separated by a distance R. • The moment of dipole, the dipole moment µ, is a vector of magnitude µ =q R, that points from the negative charge (-) to the positive charge (+). • Dipole moment are normally reported in the cgs ...
... • An electric dipole moment µ consists of two equal and opposite charges, q , separated by a distance R. • The moment of dipole, the dipole moment µ, is a vector of magnitude µ =q R, that points from the negative charge (-) to the positive charge (+). • Dipole moment are normally reported in the cgs ...
The static-exchange electron-water pseudopotential, in conjunction
... were not fit to reproduce the various local-potential components of the SE pseudopotential 关Eq. 共4兲兴, but rather to reproduce the eigenvalue and density of the excess electron obtained by solution of Eq. 共2兲. It is clear, however, that the first term in Eq. 共5兲 is a damped Coulomb interaction, while ...
... were not fit to reproduce the various local-potential components of the SE pseudopotential 关Eq. 共4兲兴, but rather to reproduce the eigenvalue and density of the excess electron obtained by solution of Eq. 共2兲. It is clear, however, that the first term in Eq. 共5兲 is a damped Coulomb interaction, while ...
compound having protonated forms of ethylenediaminetetraacetate
... atom by the N(9) donor (as mono-dentate) [1,3,4,7,9,10] or in a m-N(3),N(9) bridging mode (oligomers) [2,5,6,8]. Such coordination modes in non-substituted adenine species are understood on the basis that the N(9) donor atom is the most basic among its five nitrogen atoms, followed by N(1) [1]. Inte ...
... atom by the N(9) donor (as mono-dentate) [1,3,4,7,9,10] or in a m-N(3),N(9) bridging mode (oligomers) [2,5,6,8]. Such coordination modes in non-substituted adenine species are understood on the basis that the N(9) donor atom is the most basic among its five nitrogen atoms, followed by N(1) [1]. Inte ...
Journal Club - Clinical Chemistry
... Synthetic Analogs. The cross-reactivity predicted and measured by the ACMIA sandwich assay is compared to that measured by two competitive assays. Sandwich cross-reactivity prediction was made by multiplying the cross-reactivity for 14H04 and that for 1E2. © Copyright 2009 by the American Associatio ...
... Synthetic Analogs. The cross-reactivity predicted and measured by the ACMIA sandwich assay is compared to that measured by two competitive assays. Sandwich cross-reactivity prediction was made by multiplying the cross-reactivity for 14H04 and that for 1E2. © Copyright 2009 by the American Associatio ...
Electrostatics of a polarizable force field based on the
... new method was based on a combination of steric interactions and a Newtonian mechanical model of bond stretching, angle bending, and torsional vibrational modes. All together three research groups proposed their own versions of this method, which would later be know as the empirical force field or m ...
... new method was based on a combination of steric interactions and a Newtonian mechanical model of bond stretching, angle bending, and torsional vibrational modes. All together three research groups proposed their own versions of this method, which would later be know as the empirical force field or m ...
A discrete solvent reaction field model within density functional theory
... the wave function or the electronic charge density among the molecules much in the same way as defining atomic charges. The molecular properties will depend on the particular partitioning scheme employed as shown in an ab initio MD study20 of ice Ih, where it was found that the average dipole moment ...
... the wave function or the electronic charge density among the molecules much in the same way as defining atomic charges. The molecular properties will depend on the particular partitioning scheme employed as shown in an ab initio MD study20 of ice Ih, where it was found that the average dipole moment ...
Unit-2-Hydrocarbons
... • Esters, on the other hand, produce the sweet, often pleasant order associated with flowers, perfumes and various natural and artificial flavorings. The next slide shows Figure 4.24 from Raymond, which gives some specific examples. ...
... • Esters, on the other hand, produce the sweet, often pleasant order associated with flowers, perfumes and various natural and artificial flavorings. The next slide shows Figure 4.24 from Raymond, which gives some specific examples. ...
Theory of Polyelectrolyte Solutions
... Polyelectrolytes are polymers bearing ionizable groups, which, in polar solvents, can dissociate into charged polymer chains (macro-ions) and small ”counter-ions”. Well known examples of such systems are proteins, nucleic acids or synthetic systems such as sulfonated polystyrene or polyacrylicacid. ...
... Polyelectrolytes are polymers bearing ionizable groups, which, in polar solvents, can dissociate into charged polymer chains (macro-ions) and small ”counter-ions”. Well known examples of such systems are proteins, nucleic acids or synthetic systems such as sulfonated polystyrene or polyacrylicacid. ...
Lee and Yang, Parity Violation Paper
... prove that a measurement of the three momenta cannot supply any information on the question of parity conservation in P decay. In P-y correlation experiments the nature of the polarization of the y ray could provide a test. To be more specific, let us consider the polarization state of 7 rays emitte ...
... prove that a measurement of the three momenta cannot supply any information on the question of parity conservation in P decay. In P-y correlation experiments the nature of the polarization of the y ray could provide a test. To be more specific, let us consider the polarization state of 7 rays emitte ...
Chapter 1 Introduction - SOIL 4234 Soil Nutrient Management
... • Divalent and trivalent nutrient ions are immobile in soils (exception SO42-) • In tropical soils, are enough anion exchange sites to provide significant adsorption of SO42and cause it to be somewhat immobile. Although sulfate compounds, such as CaSO4 and MgSO4 are relatively insoluble, the equilib ...
... • Divalent and trivalent nutrient ions are immobile in soils (exception SO42-) • In tropical soils, are enough anion exchange sites to provide significant adsorption of SO42and cause it to be somewhat immobile. Although sulfate compounds, such as CaSO4 and MgSO4 are relatively insoluble, the equilib ...
Slides
... Four levels of hierarchy Example: EC 3.4.11.4 : tripeptide aminopeptidases EC 3 : hydrolases (enzymes that use water to break up some other molecules ) EC 3.4 : hydrolases that act on peptide bonds EC 3.4.11 : hydrolases that cleave off the aminoterminal amino acid from polypeptide EC 3.4.11.4 : hyd ...
... Four levels of hierarchy Example: EC 3.4.11.4 : tripeptide aminopeptidases EC 3 : hydrolases (enzymes that use water to break up some other molecules ) EC 3.4 : hydrolases that act on peptide bonds EC 3.4.11 : hydrolases that cleave off the aminoterminal amino acid from polypeptide EC 3.4.11.4 : hyd ...
Lecture 7
... 2. Beryllium chloride forms a layer lattice rather than an ionic one. In this way it is like aluminium chloride. Beryllium and aluminium are diagonal neighbors in the periodic table and this is an example of what is sometimes called a diagonal relationship. Explain these facts in terms of the high p ...
... 2. Beryllium chloride forms a layer lattice rather than an ionic one. In this way it is like aluminium chloride. Beryllium and aluminium are diagonal neighbors in the periodic table and this is an example of what is sometimes called a diagonal relationship. Explain these facts in terms of the high p ...
Design and Analysis of Chain and Network Structures from Organic
... 10 days, yellow-green needle crystals appeared, which were collected by filtration and washed with CH3CN. The crystal structure of this compound was modeled with four anilinium groups as counterions; however, residual electron density and analysis results suggest that fractional Cu2+ ions are also p ...
... 10 days, yellow-green needle crystals appeared, which were collected by filtration and washed with CH3CN. The crystal structure of this compound was modeled with four anilinium groups as counterions; however, residual electron density and analysis results suggest that fractional Cu2+ ions are also p ...
- Department of Chemistry, York University
... C6H- + H C6H2 + e NB: C4H- would be very interesting because C4H is massively abundant in IRC+10216. The cyanopolyynyl radicals like C5N are also very promising because they have EA values of 4 eV or more, so attachment is very favourable, but these radicals aren't as abundant as ...
... C6H- + H C6H2 + e NB: C4H- would be very interesting because C4H is massively abundant in IRC+10216. The cyanopolyynyl radicals like C5N are also very promising because they have EA values of 4 eV or more, so attachment is very favourable, but these radicals aren't as abundant as ...
3.091 – Introduction to Solid State Chemistry Lecture Notes No
... between these two extremes. (Two additional types of bonding, metallic bonding and Van der Waals bonding, will be discussed later.) Before discussing these models in detail it is appropriate to consider the relationships between the electronic structures of atoms and their chemical reactivity. The i ...
... between these two extremes. (Two additional types of bonding, metallic bonding and Van der Waals bonding, will be discussed later.) Before discussing these models in detail it is appropriate to consider the relationships between the electronic structures of atoms and their chemical reactivity. The i ...
Unit 3: Bonding and Nomenclature Content Outline: Chemical
... A. These molecules are composed of positive and negative ions that are combined in a lattice (3D cube) like structure that looks “like” a crystal (crystalline). 1. The ions alternate (positive- negative) so as to maintain neutrality and reduce repulsive forces between like charged ions. 2. The attra ...
... A. These molecules are composed of positive and negative ions that are combined in a lattice (3D cube) like structure that looks “like” a crystal (crystalline). 1. The ions alternate (positive- negative) so as to maintain neutrality and reduce repulsive forces between like charged ions. 2. The attra ...
Cation–pi interaction
Cation–π interaction is a noncovalent molecular interaction between the face of an electron-rich π system (e.g. benzene, ethylene, acetylene) and an adjacent cation (e.g. Li+, Na+). This interaction is an example of noncovalent bonding between a monopole (cation) and a quadrupole (π system). Bonding energies are significant, with solution-phase values falling within the same order of magnitude as hydrogen bonds and salt bridges. Similar to these other non-covalent bonds, cation–π interactions play an important role in nature, particularly in protein structure, molecular recognition and enzyme catalysis. The effect has also been observed and put to use in synthetic systems.