scholarly journals Temperature‐Dependent Electronic Ground‐State Charge Transfer in van der Waals Heterostructures

2021 ◽  
pp. 2008677
Author(s):  
Soohyung Park ◽  
Haiyuan Wang ◽  
Thorsten Schultz ◽  
Dongguen Shin ◽  
Ruslan Ovsyannikov ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Van Der Waals ◽  
Electronic Ground State ◽  
Temperature Dependent ◽  
Van Der Waals Heterostructures ◽  
State Charge ◽  
Electronic Ground

scholarly journals Van der Waals Heterostructures: Temperature‐Dependent Electronic Ground‐State Charge Transfer in van der Waals Heterostructures (Adv. Mater. 29/2021)

2021 ◽  
Vol 33 (29) ◽  
pp. 2170229
Author(s):  
Soohyung Park ◽  
Haiyuan Wang ◽  
Thorsten Schultz ◽  
Dongguen Shin ◽  
Ruslan Ovsyannikov ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Van Der Waals ◽  
Electronic Ground State ◽  
Temperature Dependent ◽  
Van Der Waals Heterostructures ◽  
State Charge ◽  
Electronic Ground

scholarly journals Vibrational Excitation Initiates Biomimetic Charge-Coupled Motions in the Electronic Ground State

2020 ◽  
Author(s):  
Gourab Chatterjee ◽  
Ajay Jha ◽  
Alejandro Blanco-Gonzalez ◽  
Vandana Tiwari ◽  
Madushanka Manathunga ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Transient Absorption ◽  
Reaction Pathway ◽  
Vibrational Excitation ◽  
Electronic Configuration ◽  
Electronic Ground State ◽  
Transient Absorption Spectroscopy ◽  
Scotopic Vision ◽  
Electronic Ground

<p>The concerted interplay between reactive nuclear and electronic motions in molecules actuates chemistry. Manipulating reaction pathways to achieve product selectivity via precise control of light-molecule interactions has allured chemists for decades. Yet it remains an elusive challenge in the electronic ground state, where conventional thermally-driven chemistry occurs. Here, we demonstrate that ground-state vibrational excitation of localised bridge modes initiates charge transfer in a donor-bridge-acceptor molecule in solution. The vibrationally-induced change in the ground-state electronic configuration is visualised by transient absorption spectroscopy, involving a mid-infrared pump and a visible probe, and detailed <i>ab initio </i>molecular dynamics simulations. Mapping the potential energy landscape unravels a hitherto undocumented charge-transfer-assisted double-bond isomerization channel in the electronic ground state. The reaction pathway bears remarkable parallels with the thermal isomerization process in rhodopsin, the retinal protein responsible for scotopic vision. Our results illustrate a generic protocol for activating key vibrational modes to drive photo-triggered ground-state reactions and motivate synthetic and catalytic strategies to achieving potentially new chemistry. </p>

scholarly journals Vibrational Excitation Initiates Biomimetic Charge-Coupled Motions in the Electronic Ground State

2020 ◽  
Author(s):  
Gourab Chatterjee ◽  
Ajay Jha ◽  
Alejandro Blanco-Gonzalez ◽  
Vandana Tiwari ◽  
Madushanka Manathunga ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Transient Absorption ◽  
Reaction Pathway ◽  
Vibrational Excitation ◽  
Electronic Configuration ◽  
Electronic Ground State ◽  
Transient Absorption Spectroscopy ◽  
Scotopic Vision ◽  
Electronic Ground

<p>The concerted interplay between reactive nuclear and electronic motions in molecules actuates chemistry. Manipulating reaction pathways to achieve product selectivity via precise control of light-molecule interactions has allured chemists for decades. Yet it remains an elusive challenge in the electronic ground state, where conventional thermally-driven chemistry occurs. Here, we demonstrate that ground-state vibrational excitation of localised bridge modes initiates charge transfer in a donor-bridge-acceptor molecule in solution. The vibrationally-induced change in the ground-state electronic configuration is visualised by transient absorption spectroscopy, involving a mid-infrared pump and a visible probe, and detailed <i>ab initio </i>molecular dynamics simulations. Mapping the potential energy landscape unravels a hitherto undocumented charge-transfer-assisted double-bond isomerization channel in the electronic ground state. The reaction pathway bears remarkable parallels with the thermal isomerization process in rhodopsin, the retinal protein responsible for scotopic vision. Our results illustrate a generic protocol for activating key vibrational modes to drive photo-triggered ground-state reactions and motivate synthetic and catalytic strategies to achieving potentially new chemistry. </p>

ChemInform Abstract: TRIPLET ELECTRONIC GROUND STATE OF TRIMETHYLENEMETHANE

1974 ◽  
Vol 5 (33) ◽  
pp. no-no
Author(s):  
DAVID R. YARKONY ◽  
HENRY F. III SCHAEFER
Keyword(s):  
Ground State ◽  
Electronic Ground State ◽  
Electronic Ground

Electronic ground state of θ-(BEDT-TTF)2RbZn(SCN)4studied by Raman spectroscopy

2001 ◽  
Vol 120 (1-3) ◽  
pp. 791-792 ◽  
Author(s):  
Kaoru Yamamoto ◽  
Kyuya Yakushi
Keyword(s):  
Raman Spectroscopy ◽  
Ground State ◽  
Electronic Ground State ◽  
Electronic Ground

Femtosecond nano-videography of interlayer charge transfer in van der Waals heterostructures

2021 ◽  
Author(s):  
M. Zizlsperger ◽  
M. Plankl ◽  
P. E. Faria Junior ◽  
F. Mooshammer ◽  
T. Siday ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Van Der Waals ◽  
Van Der Waals Heterostructures

Consistent characterization of the electronic ground state of Iron (II) Phthalocyanine from valence and core-shell electron spectroscopy

2021 ◽  
Author(s):  
Jonathan Laurent ◽  
John Bozek ◽  
Marc BRIANT ◽  
Pierre Carcabal ◽  
Denis Cubaynes ◽  
...  
Keyword(s):  
Gas Phase ◽  
Ground State ◽  
Electron Spectroscopy ◽  
Organometallic Compound ◽  
Electronic Ground State ◽  
Core Shell ◽  
Shell Electron ◽  
Phthalocyanine Molecule ◽  
Electronic Ground

We studied the Iron (II) Phthalocyanine molecule in the gas-phase. It is a complex transition organometallic compound, for which, the characterization of its electronic ground state is still debated more...

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