scholarly journals Quantum electronic coherences by attosecond transient absorption spectroscopy: ab initio B-spline RCS-ADC study

2020 ◽  
Author(s):  
Marco Ruberti
Keyword(s):  
Ab Initio ◽  
Absorption Spectroscopy ◽  
Polyatomic Molecule ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Time Resolved ◽  
B Spline ◽  
X Ray ◽  
Quantum Electronic ◽  
The Many

Here I present a fully ab initio time-resolved study of X-ray attosecond transient absorption spectroscopy (ATAS) in a prototypical polyatomic molecule, pyrazine, and demonstrate the possibility of retrieving the many-electron...

Structure and excited-state dynamics of dimeric copper(i) photosensitizers investigated by time-resolved X-ray and optical transient absorption spectroscopy

2021 ◽  
Vol 23 (5) ◽  
pp. 3656-3667
Author(s):  
Lucía Velasco ◽  
Leonel Llanos ◽  
Pedro Levín ◽  
Andrés Vega ◽  
Jin Yu ◽  
...  
Keyword(s):  
Excited State ◽  
Optical Absorption ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Optical Absorption Spectroscopy ◽  
Time Resolved ◽  
X Ray ◽  
Solvent Type ◽  
Optical Transient

Three homoleptic Cu(i) dimeric photosensitizers are studied through ultrafast X-ray and optical absorption spectroscopy. The complexes show distinct excited state lifetimes, due to the solvent type and spacers' flexibilities between the Cu centres.

scholarly journals Combined probes of X-ray scattering and optical spectroscopy reveal how global conformational change is temporally and spatially linked to local structural perturbation in photoactive yellow protein

2016 ◽  
Vol 18 (13) ◽  
pp. 8911-8919 ◽  
Author(s):  
Tae Wu Kim ◽  
Cheolhee Yang ◽  
Youngmin Kim ◽  
Jong Goo Kim ◽  
Jeongho Kim ◽  
...  
Keyword(s):  
Real Time ◽  
Conformational Change ◽  
Absorption Spectroscopy ◽  
Structural Changes ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Photoactive Yellow Protein ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering

Structural changes in global conformation and chromophore of photoactive yellow protein are probed in real time by time-resolved X-ray solution scattering and transient absorption spectroscopy.

scholarly journals Attosecond x-ray transient absorption spectroscopy in graphene

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Giovanni Cistaro ◽  
Luis Plaja ◽  
Fernando Martín ◽  
Antonio Picón
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
X Ray

scholarly journals Transient absorption spectroscopy using high harmonic generation: a review of ultrafast X-ray dynamics in molecules and solids

2019 ◽  
Vol 377 (2145) ◽  
pp. 20170463 ◽  
Author(s):  
Romain Geneaux ◽  
Hugo J. B. Marroux ◽  
Alexander Guggenmos ◽  
Daniel M. Neumark ◽  
Stephen R. Leone
Keyword(s):  
Time Scales ◽  
Harmonic Generation ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Transient Absorption Spectroscopy ◽  
Spectroscopic Techniques ◽  
X Rays ◽  
X Ray

Attosecond science opened the door to observing nuclear and electronic dynamics in real time and has begun to expand beyond its traditional grounds. Among several spectroscopic techniques, X-ray transient absorption spectroscopy has become key in understanding matter on ultrafast time scales. In this review, we illustrate the capabilities of this unique tool through a number of iconic experiments. We outline how coherent broadband X-ray radiation, emitted in high-harmonic generation, can be used to follow dynamics in increasingly complex systems. Experiments performed in both molecules and solids are discussed at length, on time scales ranging from attoseconds to picoseconds, and in perturbative or strong-field excitation regimes. This article is part of the theme issue ‘Measurement of ultrafast electronic and structural dynamics with X-rays’.

Ultrafast Heme Dynamics in Ferrous versus Ferric CytochromecStudied by Time-Resolved Resonance Raman and Transient Absorption Spectroscopy

2006 ◽  
Vol 110 (25) ◽  
pp. 12766-12781 ◽  
Author(s):  
Michel Negrerie ◽  
Simona Cianetti ◽  
Marten H. Vos ◽  
Jean-Louis Martin ◽  
Sergei G. Kruglik
Keyword(s):  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Resonance Raman ◽  
Transient Absorption Spectroscopy ◽  
Time Resolved

Photodissociation Structural Dynamics of TrirutheniumDodecacarbonyl Investigated by X-ray Transient Absorption Spectroscopy

2013 ◽  
Vol 117 (39) ◽  
pp. 9807-9813 ◽  
Author(s):  
Michael R. Harpham ◽  
Andrew, B. Stickrath ◽  
Xiaoyi, Zhang ◽  
Jier Huang ◽  
Michael W. Mara ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Structural Dynamics ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
X Ray

scholarly journals Towards understanding non-equivalence of α and β subunits within human hemoglobin in conformational relaxation and molecular oxygen rebinding

2021 ◽  
Author(s):  
Sergei V. Lepeshkevich ◽  
Igor V. Sazanovich ◽  
Marina V. Parkhats ◽  
Syargey N. Gilevich ◽  
Boris M. Dzhagarov
Keyword(s):  
Molecular Oxygen ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Human Hemoglobin ◽  
Time Resolved ◽  
Conformational Relaxation ◽  
Α And Β Subunits ◽  
Millisecond Laser

Picosecond to millisecond laser time-resolved transient absorption spectroscopy was used to study molecular oxygen (O2) rebinding and conformational relaxation following O2 photodissociation in the α and β subunits within human...

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