scholarly journals Chromophore-radical excited state antiferromagnetic exchange controls the sign of photoinduced ground state spin polarization

2021 ◽  
Author(s):  
Martin L. Kirk ◽  
David A. Shultz ◽  
Patrick Hewitt ◽  
Daniel E. Stasiw ◽  
Ju Chen ◽  
...  
Keyword(s):  
Excited State ◽  
Spin Polarization ◽  
Ground State ◽  
Electron Spin Polarization ◽  
Organic Radical ◽  
Antiferromagnetic Exchange ◽  
Ground State Spin ◽  
Donor Acceptor ◽  
State Spin ◽  
Ground State Electron

A change in the sign of the ground state electron spin polarization (ESP) is reported in complexes where an organic radical (nitronylnitroxide, NN) is covalently attached to a donor–acceptor chromophore via two different meta-phenylene bridges.

Shape coexistence inBr71and the question of the ground-state spin ofKr71

2005 ◽  
Vol 72 (2) ◽  
Author(s):  
S. M. Fischer ◽  
T. Anderson ◽  
P. Kerns ◽  
G. Mesoloras ◽  
D. Svelnys ◽  
...  
Keyword(s):  
Ground State ◽  
Shape Coexistence ◽  
Ground State Spin ◽  
State Spin

A Mn17Octahedron with a Giant Ground-State Spin: Occurrence in Discrete Form and as Multidimensional Coordination Polymers

2009 ◽  
Vol 48 (12) ◽  
pp. 5049-5051 ◽  
Author(s):  
Eleni E. Moushi ◽  
Theocharis C. Stamatatos ◽  
Wolfgang Wernsdorfer ◽  
Vassilios Nastopoulos ◽  
George Christou ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Ground State ◽  
Discrete Form ◽  
Ground State Spin ◽  
State Spin

scholarly journals On the Ground State Spin of Ti47and Mn55

1957 ◽  
Vol 18 (6) ◽  
pp. 661-662 ◽  
Author(s):  
Sadaaki Yanagawa
Keyword(s):  
Ground State ◽  
Ground State Spin ◽  
State Spin

scholarly journals The ground state spin of 180Ta is not 8+

1979 ◽  
Vol 40 (1) ◽  
pp. 1-3 ◽  
Author(s):  
E. Warde ◽  
R. Seltz ◽  
G. Costa ◽  
D. Magnac ◽  
C. Gerardin
Keyword(s):  
Ground State ◽  
Ground State Spin ◽  
State Spin

Deformation of Light Br Isotopes: New Ground State Spin and Moment Measurements

1988 ◽  
pp. 309-314
Author(s):  
N. J. Stone ◽  
C. J. Ashworth ◽  
I. S. Grant ◽  
A. G. Griffiths ◽  
S. Ohya ◽  
...  
Keyword(s):  
Ground State ◽  
Ground State Spin ◽  
State Spin

scholarly journals Halogen-Bond Assisted Photoinduced Electron Transfer

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4361
Author(s):  
Bogdan Dereka ◽  
Ina Fureraj ◽  
Arnulf Rosspeintner ◽  
Eric Vauthey
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Ground State ◽  
Halogen Bond ◽  
Quenching Rate ◽  
Excited Complex ◽  
Diffusion Controlled ◽  
Donor Acceptor ◽  
Quenching Rate Constant ◽  
Excited State Population

The formation of a halogen-bond (XB) complex in the excited state was recently reported with a quadrupolar acceptor–donor–acceptor dye in two iodine-based liquids (J. Phys. Chem. Lett. 2017, 8, 3927–3932). The ultrafast decay of this excited complex to the ground state was ascribed to an electron transfer quenching by the XB donors. We examined the mechanism of this process by investigating the quenching dynamics of the dye in the S1 state using the same two iodo-compounds diluted in inert solvents. The results were compared with those obtained with a non-halogenated electron acceptor, fumaronitrile. Whereas quenching by fumaronitrile was found to be diffusion controlled, that by the two XB compounds is slower, despite a larger driving force for electron transfer. A Smoluchowski–Collins–Kimball analysis of the excited-state population decays reveals that both the intrinsic quenching rate constant and the quenching radius are significantly smaller with the XB compounds. These results point to much stronger orientational constraint for quenching with the XB compounds, indicating that electron transfer occurs upon formation of the halogen bond.

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