Search Results - "Tarnovsky, Alexander N"
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1
Suppression of the Plasmon Resonance in Au/CdS Colloidal Nanocomposites
Published in Nano letters (13-04-2011)“…The nature of exciton−plasmon interactions in Au-tipped CdS nanorods has been investigated using femtosecond transient absorption spectroscopy. The study…”
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2
The Effect of the Charge-Separating Interface on Exciton Dynamics in Photocatalytic Colloidal Heteronanocrystals
Published in ACS nano (25-09-2012)“…Ultrafast transient absorption spectroscopy was used to investigate the nature of photoinduced charge transfer processes taking place in ZnSe/CdS/Pt colloidal…”
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3
Photoinduced Charge Shifts and Electron Transfer in Viologen–Tetraphenylborate Complexes: Push–Pull Character of the Exciplex
Published in Journal of the American Chemical Society (14-06-2017)“…Viologen–tetraarylborate ion-pair complexes were prepared and investigated by steady-state and time-resolved spectroscopic techniques such as fluorescence and…”
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4
Radiative Recombination of Spatially Extended Excitons in (ZnSe/CdS)/CdS Heterostructured Nanorods
Published in Journal of the American Chemical Society (28-01-2009)“…We report on organometallic synthesis of luminescent (ZnSe/CdS)/CdS semiconductor heterostructured nanorods (hetero-NRs) that produce an efficient spatial…”
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5
Photoaffinity Labeling via Nitrenium Ion Chemistry: Protonation of the Nitrene Derived from 4-Amino-3-nitrophenyl Azide to Afford Reactive Nitrenium Ion Pairs
Published in Journal of the American Chemical Society (19-08-2009)“…Phenyl azides with powerful electron-donating substituents are known to deviate from the usual photochemical behavior of other phenyl azides. They do not…”
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6
Watching Ultrafast Barrierless Excited-State Isomerization of Pseudocyanine in Real Time
Published in The journal of physical chemistry. B (03-05-2007)“…The photoinduced excited-state processes in 1,1‘-diethyl-2,2‘-cyanine iodine are investigated using femtosecond time-resolved pump−probe spectroscopy. Using a…”
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7
Ultrafast Solution-Phase Photophysical and Photochemical Dynamics of Hexaiodobismuthate(III), the Heart of Bismuth Halide Perovskite Solar Cells
Published in The journal of physical chemistry. B (17-02-2022)“…The ultrafast relaxation pathways in a hexaiodide bismuth(III) complex, BiI6 3–, excited at 530 nm in acetonitrile solution are studied by means of…”
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8
Femtosecond Excited State Dynamics and Nitric Oxide Photorelease in a Prototypical Ruthenium Nitrosyl Complex
Published in The journal of physical chemistry letters (18-06-2020)“…Excited-state relaxation of a prototypical ruthenium nitrosyl complex (pentachloronitrosylruthenate) in water is studied by means of ultrafast dispersed,…”
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9
Comparative Study of Uracil Excited-State Photophysics in Water and Acetonitrile via RMS-CASPT2-Driven Quantum-Classical Trajectories
Published in The journal of physical chemistry. B (21-12-2023)“…We present a nonadiabatic molecular dynamics study of the ultrafast processes occurring in uracil upon UV light absorption, leading to electronic excitation…”
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10
Photochemistry of Iodoform in Methanol: Formation and Fate of the Iso‐CHI2‐I Photoproduct
Published in Chemphyschem (03-08-2009)“…Ultrafast population and structural dynamics due to the iso‐CHI2‐I isomer product formed upon UV excitation of iodoform (CHI3) in solution is monitored by…”
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Excited-State-Selective Ultrafast Relaxation Dynamics and Photoisomerization of trans-4,4′-Azopyridine
Published in The journal of physical chemistry letters (24-11-2022)“…Excited-state dynamics of trans-4,4′-azopyridine in ethanol is studied using femtosecond transient absorption with 30 fs temporal resolution. Exciting the…”
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12
One-Dimensional Carrier Confinement in “Giant” CdS/CdSe Excitonic Nanoshells
Published in Journal of the American Chemical Society (14-06-2017)“…The emerging generation of quantum dot optoelectronic devices offers an appealing prospect of a size-tunable band gap. The confinement-enabled control over…”
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13
Photochemistry of Diiodomethane in Solution Studied by Femtosecond and Nanosecond Laser Photolysis. Formation and Dark Reactions of the CH2I−I Isomer Photoproduct and Its Role in Cyclopropanation of Olefins
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (15-01-2004)“…Femtosecond and nanosecond photolysis of CH2I2 in acetonitrile at an excitation wavelength of 266-nm yield the ground-state CH2I−I isomer product in ∼70%…”
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14
Delayed Photoluminescence in Metal-Conjugated Fluorophores
Published in Journal of the American Chemical Society (17-07-2019)“…Assemblies of metal nanostructures and fluorescent molecules represent a promising platform for the development of biosensing and near-field imaging…”
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15
Roaming-mediated ultrafast isomerization of geminal tri-bromides in the gas and liquid phases
Published in Nature chemistry (01-07-2015)“…‘Roaming’ is a new and unusual class of reaction mechanism that has recently been discovered in unimolecular dissociation reactions of isolated molecules in…”
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Photodissociation Dynamics of Iodoform in Solution
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (16-01-2003)“…The photodissociation dynamics of iodoform (CHI3) in acetonitrile and cyclohexane were investigated by femtosecond pump−probe spectroscopy and nanosecond laser…”
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17
Publisher Correction: Roaming-mediated ultrafast isomerization of geminal tri-bromides in the gas and liquid phases
Published in Nature chemistry (01-06-2019)“…In the version of this Article originally published, in Fig. 5, the chemical formula Br•CC 6 H 11 should have read Br•CH 3 C 6 H 11 …”
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18
Ultrafast Carrier Dynamics in Type II ZnSe/CdS/ZnSe Nanobarbells
Published in ACS nano (27-04-2010)“…We employ femtosecond transient absorption spectroscopy to get an insight into ultrafast processes occurring at the interface of type II ZnSe/CdS…”
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19
Photodissociation dynamics of diiodomethane in solution
Published in Chemical physics letters (22-10-1999)“…We have studied the photodissociation dynamics of diiodomethane (CH 2I 2) in acetonitrile by femtosecond pump–probe spectroscopy. The reaction was initiated…”
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20
Ion-Pair Complexes of Pyrylium and Tetraarylborate as New Host–Guest Dyes: Photoinduced Electron Transfer Promoting Radical Polymerization
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (29-08-2019)“…Ultrafast transient absorption spectroscopy, NOESY-NMR, and EPR spectroscopy shed light on how π–π stacking interactions combined with electrostatic…”
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