Dissociation Chemistry of Hydrogen-Deficient Radical Peptide Anions [PDF]
Journal of the American Society for Mass Spectrometry, 2011 The fragmentation chemistry of anionic deprotonated hydrogen-deficient radical peptides is investigated. Homolytic photodissociation of carbon-iodine bonds with 266 nm light is used to generate the radical species, which are subsequently subjected to collisional activation to induce further dissociation.
Moore, Benjamin +6 more
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Modeling Dissociation-Vibration Coupling with the Macroscopic Chemistry Method [PDF]
AIP Conference Proceedings, 2005 We test the recently developed macroscopic approach to modeling chemistry in DSMC [Lilliley & Macrossan, Physics of Fluids, 16(6), 2054-2066 (2004)], by simulating the flow of rarefied dissociating nitrogen over a blunt cylinder. In this macroscopic method, chemical reactions are decoupled from the collision routine.
Charles R. Lilley +2 more
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MENTAL MODEL OF PROSPECTIVE CHEMISTRY TEACHER ON EQUILIBRIUM CONSTANT AND DEGREE OF DISSOCIATION [PDF]
Jurnal Kependidikan: Penelitian Inovasi Pembelajaran, 2019 MODEL MENTAL CALON GURU KIMIA PADA KONSEP TETAPAN KESETIMBANGAN DAN DERAJAT DISOSIASI Abstrak Penelitian ini bertujuan untuk mengeksplorasi model mental calon guru kimia pada konsep tetapan kesetimbangan dan derajat disosiasi.
Anggra Prasetya Cahya +2 more
doaj +2 more sources
Electron Attachment to 5-Fluorouracil: The Role of Hydrogen Fluoride in Dissociation Chemistry. [PDF]
Int J Mol Sci, 2022 We investigate dissociative electron attachment to 5-fluorouracil (5-FU) employing a crossed electron-molecular beam experiment and quantum chemical calculations. Upon the formation of the 5-FU− anion, 12 different fragmentation products are observed, the most probable dissociation channel being H loss.
Arthur-Baidoo E +5 more
europepmc +3 more sources
Peptide radical cations: gender determines dissociation chemistry. [PDF]
Mass Spectrom (Tokyo), 2013 Peptide radicals play a significant role in biology as well as mass spectrometry. They can be differentiated into two groups: conventional hydrogen-deficient radicals, e.g. M(+•) as in electron ionization, and much more rare hydrogen-abundant radicals, e.g. [M+2H](+•), as in electron capture/transfer dissociation.
A Zubarev R.
europepmc +4 more sources
Bond dissociation energies of X–H bonds in proteins [PDF]
, 2022 Knowledge of reliable X–H bond dissociation energies (X = C, N, O, S) for amino acids in proteins is key for studying the radical chemistry of proteins. X–H bond dissociation energies of model dipeptides were computed using the isodesmic reaction method ...
Kai, Riedmiller +5 more
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The Historical Development of the Words “Dissociation” and “Ionization” in Chemistry
Revista Debates em Ensino de Química, 2023 The words "dissociation" and "ionization" are sources of misconceptions in chemistry teaching, mainly in the subjects of acids and bases, chemical equilibrium and solutions. In the present article, the historical development of the two words was analyzed.
Giovanni Miraveti Carriello +2 more
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Ab Initio Calculations of Dissociation Energy of Water Molecule on Near-Term Quantum Devices Using the Pennylane Interface to Quantum Hardware [PDF]
, 2021 Fault-tolerant quantum computers may be far off, however solving real world quantum chemistry problems on near-term quantum devices is possible through the Pennylane which provides interface to use any of the quantum hardware provided by any of the ...
Ben, Geoffrey A S
core +1 more source
Cosmic Ray Dissociation of Molecular Hydrogen and Dense Cloud Chemistry [PDF]
Research Notes of the AAS, 2020 Abstract Dissociation of molecular hydrogen by secondary electrons produced by cosmic ray or X-ray ionization plays a crucial role in the chemistry of the densest part of molecular clouds. Here we study the effect of the mean kinetic energy of secondary electrons on this process. We compare predictions using a range of secondary electron
Gargi Shaw +2 more
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Gas phase homolytic bond dissociation enthalpies of common laboratory solvents: A G4 theoretical study [PDF]
, 2010 Gas phase standard state (298.15 K, 1 atm) calculations were conducted at the Gaussian-4 (G4) composite method level of theory to estimate the bond dissociation enthalpies (BDEs) of various common laboratory solvents.
Sierra Rayne, Kaya Forest
core +1 more source