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Ágúst Kvaran - Prófessor emeritus

Ágúst Kvaran

–

Verkfræði- og náttúruvísindasvið

Ágúst Kvaran

Prófessor emeritus

Prófessor

Aðsetur
Dunhagi 3 / Rau-236
Sími
5254694
Tölvupóstur
agust [hjá] hi.is

Starfseining
Raunvísindadeild
Vefsíða
https://notendur.hi.is/agust/
Ritaskrá
Ágúst Kvaran - ritaskrá

Ferilskrá
Ágúst Kvaran - ferilskrá
ORCID vefsíða
https://orcid.org/0000-0002-1742-6994
Rannsóknagátt – Ágúst Kvaran

Útgefið efni

2025

Coordination of PPh₃ with a [Mo₂O₂(μ-S)₂]²⁺ Phosphinoyldithioformate Complex and Its Influence on Episulfide Sulfur AbstractionInorganic Chemistry

2024

Photofragmentation and fragment analysis; Coriolis interactions in excited states of CH₃Physical Chemistry Chemical Physics

2023

Branching ratios in the dissociative photoionization of iodomethane by photoelectron photoion coincidencePhysical Chemistry Chemical Physics

2022

Melatonin photoreactivityChemical Papers
Coincidence ion pair production (cipp) spectroscopy of diiodinePhysical Chemistry Chemical Physics
High energy state interactions, energetics and multiphoto-fragmentation processes of HIPhysical Chemistry Chemical Physics
Multiphoton breakdown of acetylene; formation of organic building block fragmentsPhysical Chemistry Chemical Physics

2021

Resolving the F₂bond energy discrepancy using coincidence ion pair production (cipp) spectroscopyPhysical Chemistry Chemical Physics
Photo- and autoionization processes of superexcited iodine atoms in MPI of CH₃I and HIChemical Physics
Coordination properties of non-rigid phosphinoyldithioformate complexes of the [mo₂ o₂ (µ-s)₂ ]²⁺ cation in catalytic sulfur transfer reactions with thiiranesCatalysts

2020

Formation of highly excited iodine atoms from multiphoton excitation of CH₃IPhysical Chemistry Chemical Physics
Addition to and revision of the HI Rydberg states energy regionJournal of Molecular Spectroscopy

2019

High energy Rydberg and ion-pair states, state mixing and excitation dynamics of HIPhysical Chemistry Chemical Physics
Two-color studies of CH₃Br excitation dynamics with MPI and slice imagingPhysical Chemistry Chemical Physics

2018

Multiphoton Rydberg and valence dynamics of CH₃Br probed by mass spectrometry and slice imagingPhysical Chemistry Chemical Physics
Non-rigid coordination behavior of the ambidentate phosphinoyldithioformate ligands, [S₂CP(O)R₂]^-, (R = Ph, CH₂Ph) in organometallic Lead(IV) and Mercury(II) compoundsJournal of Organometallic Chemistry
CyanocyclohexaneJournal of Molecular Structure

2017

High energy Rydberg and valence states and state interactions of DClJournal of Molecular Spectroscopy
Conformational properties of 1-cyano-1-silacyclohexane, C5H10SiHCN: Gas electron diffraction, low-temperature NMR and quantum chemical calculationsJournal of Molecular Structure
Excitation dynamics involving homogeneous multistate interactionsPhysical Chemistry Chemical Physics

2016

ErratumJournal of Molecular Spectroscopy
Long term puzzles of the CH and CD energetics and related phenomena revisited; Solutions sought through REMPI-photofragmentations of bromomethanesPhysical Chemistry Chemical Physics
Effect of a triplet to singlet state interaction on photofragmentation dynamicsPhysical Chemistry Chemical Physics
Dissociative photoionization of 1‑Halogenated silacyclohexanesJournal of Physical Chemistry A

2015

Rydberg and valence state excitation dynamicsPhysical Chemistry Chemical Physics
State interactions, Illumination of Hidden States through Perturbations and observations of New States: High Energy REMPI of HIJournal of Chemical Physics
Conformational properties of 1-tert-butyl-1-silacyclohexane, C₅H₁₀SiH(t-Bu)Structural Chemistry
Revealing photofragmentation dynamics through interactions between Rydberg statesPhysical Chemistry Chemical Physics
State interactions and illumination of hidden states through perturbations and observations of new statesJournal of Chemical Physics

2014

Photofragmentation, state interaction, and energetics of Rydberg and ion-pair statesJournal of Chemical Physics
Resonance-enhanced multiphoton ionization of CH₂Br₂Journal of Physical Chemistry A

2013

Conformational properties of 1-halogenated-1-silacyclohexanes, C ₅H₁₀SiHX (X = Cl, Br, I)Organometallics
New REMPI observations and analyses for Rydberg and ion-pair states of HIJournal of Molecular Spectroscopy
REMPI spectra of HCl: Analysis of F1D2 Spectral PerturbationWuli Xuebao/Acta Physica Sinica
Photofragmentations, state interactions, and energetics of Rydberg and ion-pair statesJournal of Chemical Physics
Photofragmentations, State Interactions and Energetics of Rydberg and Ion-pair states: REMPI via E and V(B) states of HCl and HBrJournal of Chemical Physics
Conformational properties of 1-methyl-1-germacyclohexaneStructural Chemistry

2012

Rydberg and ion-pair states of HBrJournal of Molecular Spectroscopy
Photofragmentations, state interactions, and energetics of Rydberg and ion-pair statesJournal of Chemical Physics

2011

Thermochemistry of halomethanes CF_nBr_4-n (n ≥ 0 - 3) based on iPEPICO experiments and quantum chemical computationsJournal of Physical Chemistry A
Massagreining í kjölfar ljósgleypni: Víxlverkanir milli örvaðra ástanda uppgötvaðarRAUST - Tímarit um raunvísindi og stærðfræði
Massagreining í kjölfar ljósgleypni: Víxlverkun milli örvaðra ástandaRAUST - Tímarit um raunvísindi og stærðfræði
Two-dimensional resonance enhanced multiphoton ionization of H ⁱCl; I=35, 37Journal of Chemical Physics
Two-dimensional REMPI of CF₃BrChemical Physics Letters

2010

Conformational properties of 1-silyl-1-silacyclohexane, C₅H ₁₀SiHSiH₃Journal of Physical Chemistry A
Conformational properties of 1-fluoro-1-methyl-silacyclohexane and 1-methyl-1-trifluoromethyl-1-silacyclohexaneJournal of Molecular Structure
Two-dimensional (2+ n) REMPI of CH₃BrJournal of Physical Chemistry A

2009

Two-dimensional (2 + n) REMPI of HClJournal of Molecular Spectroscopy
Unexpected conformational properties of 1-trifluormethyl-1-silacyclohexane, C₅H₁₀SiHCF₃Chemistry - A European Journal
Two-dimensional (2+n) resonance enhanced multiphoton ionization of HClJournal of Chemical Physics

2008

The Conformational Preference of the Methyl Group in 1-Methyl-1-Silacyclohexane
(2 + n) REMPI of acetyleneChemical Physics Letters
Two-dimensional (2+n) resonance enhanced multiphoton ionization of HClJournal of Chemical Physics

2007

Tveggja ljóseinda gleypni acetylenstímaritRAUST - Tímarit um raunvísindi og stærðfræði
Conformational properties of 1-Fluoro-1-silacyclohexane, C ₅H₁₀SiHFOrganometallics
Unexpected conformational properties of 1-trifluoromethyl-1- silacyclohexane, C₅H₁₀SiHCF₃Chemistry - A European Journal
Fjölljóseindagleypni NO sameindarinnartímaritRAUST - Tímarit um raunvísindi og stærðfræði
REMPI spectra of the hydrogen halidesWuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

2006

Comment on "relative energies, stereoelectronic interactions, and conformational interconversion in silacycloalkanes"International Journal of Quantum Chemistry
Structures and energetics of axial and equatorial 1-methyl-1- silacyclohexaneOrganometallics
Relative energy and structural differences of axial and equatorial 1-fluoro-1-silacyclohexaneJournal of Physical Chemistry A
REMPI-TOF studies of the HF dimerJournal of Molecular Structure
Three-photon absorption of open shell structured molecules: (3+1)REMPI of NO as a case studyPhysical Chemistry; An Indian Journal

2005

The rotational spectrum of silacyclohexaneJournal of Molecular Spectroscopy

2004

Three- and two-photon absorption in HCL and DCLJournal of Molecular Spectroscopy
Sameindalögun háð leysiefnum: Rúmefnafræði 2,5-díarýl-5-metýl-1,3-díoxanaRAUST - Tímarit um raunvísindi og stærðfræði

2002

Conformations of silicon-containing rings. 5. Conformational properties of 1-methyl-1-silacyclohexaneJournal of Organic Chemistry
Three-photon absorption spectroscopyMolecular Physics

2001

Three- and two-photon absorption spectroscopyCanadian Journal of Physics
¹H NMR and UV-vis spectroscopy of fluorine and chlorine substituted stilbenesJournal of Molecular Structure
Photochemical conversion of 2,6-dihalo substituted methyl α-phenylcinnamatesJournal of Photochemistry and Photobiology A: Chemistry
Three-photon absorption spectroscopyJournal of Molecular Structure

2000

Resonance enhanced multiphoton ionization of the hydrogen halidesJournal of Chemical Physics
¹H NMR and UV-Vis spectroscopy of chlorine substituted stilbenesJournal of Molecular Structure
Spectroscopy of FlamesJournal of Chemical Education
What to see and what not to see in three-photon absorptionJournal of Chemical Physics

1998

¹H NMR investigation of si-alkylsubstituted 1,3,5-trisilacyclohexanesZeitschrift fur Anorganische und Allgemeine Chemie
(2+1) REMPI spectra of =0 states of the hydrogen halidesJournal of Chemical Physics
Photochemistry of substituted methyl-α-arylcinnamatesJournal of Photochemistry and Photobiology A: Chemistry

1996

On the origin of the dip in the KrF laser gain spectrumJournal of Chemical Physics
REMPI spectra of Cl₂Journal of Molecular Spectroscopy
Rotational perturbations in the (2 + 1) REMPI spectrum of the Rydberg state [²II_3/2]_c5d; 1g of I₂Chemical Physics

1995

REMPI spectra of IBrJournal of Physical Chemistry
Threshold photoelectron spectroscopy of Cl₂ and Br₂ up to 35 eVJournal of Physical Chemistry

1994

REMPI spectra of I₂. The [_{3 2}]_c5d; 1g Rydberg state and interactions with ion pair statesChemical Physics Letters
Threshold photoelectron spectroscopy of CF₄ up to 60.5 eVJournal of Electron Spectroscopy and Related Phenomena
The dalby system of iodine revisitedJournal of Molecular Spectroscopy

1993

Ion‐pair (X⁺ + Y⁻) formation from photodissociation of the interhalogen molecules BrCl, ICl and IBrOrganic Mass Spectrometry
Rotationally resolved (2+1) REMPI spectra of gerade Rydberg state of molecular iodineJournal of Molecular Structure
Ion-pair formation in the photodissociation of HCl and DCIThe Journal of Chemical Physics
Laser photoisomerization of methyl α-arylcinnamates; effect of chloro substitutionJournal of Photochemistry and Photobiology, A: Chemistry

1992

Analyses of the 290-400 nm oscillatory continua due to transitions from the e(O⁺) ion pair state of brciMolecular Physics
Mechanism of the two-photon laser assisted reaction of Xe and Cl₂ to form XeClJournal of Molecular Structure

1991

Vibrationally resolved excitation functions for direct ion-pair (I⁺ + I^-) formation from photodissociation of I₂Chemical Physics Letters
Mechanism of vibrational relaxation and intersystem crossing within excited ion-pair states of I₂Proceedings of the Indian Academy of Sciences - Chemical Sciences

1990

Ion-pair (Br⁺ + Br^-) formation from photodissociation of Br₂ near the first ionisation limitChemical Physics Letters

1989

Spectroscopic characterization of the lowest singlet states of CdNe, CdAr, and CdKrThe Journal of Chemical Physics

1988

Vibrational relaxation of KrF^* and XeCl^* by rare gasesApplied Physics B Photophysics and Laser Chemistry
Spectroscopic characterization of the X(¹0⁺) and A(³0⁺) states of CdNe, CdAr, CdKr, and CdXeThe Journal of Chemical Physics

1987

Chemiluminescent reactions of rare gas atoms, Rg(ns, ³P₂, ³P₁, ¹P₁) with N₂O, SCO and SeCOChemical Physics Letters
The dynamics of electronically excited states in the rare-gas-halogen systemsFaraday Discussions of the Chemical Society

1986

Competitive channels in the interaction of Xe(³P_J) with Cl₂, Br₂ and I₂. Atom transfer, excitation transfer, energy disposal and product rotational alignmentJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
Reactions of xe(³p₂) and xe (³p₁) with HC1, HBr and HI; energy utilization, energy disposal, product rotational polarization and reaction dynamicsMolecular Physics

1984

Vibrational relaxation of XeBr(B) by ArJournal of Physical Chemistry

1983

Vibrational population distributions from rare gas halide spectraMolecular Physics

1982

Analysis of the 350-400 nm oscillatory continuum from I₂ (D ¹Σ⁺_u)Chemical Physics Letters
Bromine emission spectra of discharged mixtures of argon + bromine-containing compoundsJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics

1980

Chemiluminescence of argon bromide. II. Potential curves of ArBr and population distributions in the B(1/2) and C(3/2) electronic statesThe Journal of Chemical Physics
Chemiluminescence of argon bromide. I. The emission spectrum of ArBrThe Journal of Chemical Physics

1978

Emission spectra of the noble-gas halidesChemical Physics Letters

Sérsvið:

ÚF-Sýn greining og líkanreikningar sameinda

Massagreiningar sameinda

Eðlisefnafræði

Fjölljóseindajónun("multiphoton ionization

Einljóseindajónun

Hvarfljómun ("Chemiluminescence

LASER litrófsgreining sameinda

Ljóshverfing lífrænna sameinda

Ljósrof sameinda