Ligand effects on electronic structure and bonding in U(iii) coordination complexes: a combined MCD, EPR and computational study

2020 ◽  
Vol 49 (41) ◽  
pp. 14401-14410
Author(s):  
Nikki J. Wolford ◽  
Xiaojuan Yu ◽  
Suzanne C. Bart ◽  
Jochen Autschbach ◽  
Michael L. Neidig

Spectroscopy and theory enable broader insight into electronic structure and bonding in U(iii) coordination complexes, focusing on systems with Tp* ligands.

2020 ◽  
Vol 22 (21) ◽  
pp. 12173-12179
Author(s):  
Zhifeng Ma ◽  
Naoki Nakatani ◽  
Hiroshi Fujii ◽  
Masahiko Hada

The nature of axial ligand effects is revealed by density functional theory calculations, the ability of axial ligand bound to iron is strong, and the reaction is more reactive.


2020 ◽  
Vol 358 ◽  
pp. 403-411 ◽  
Author(s):  
Silvia Carlotto ◽  
Girolamo Casella ◽  
Luca Floreano ◽  
Alberto Verdini ◽  
Ana P.C. Ribeiro ◽  
...  

2019 ◽  
Author(s):  
Micaela Matta ◽  
Alessandro Pezzella ◽  
Alessandro Troisi

<div><div><div><p>Eumelanins are a family of natural and synthetic pigments obtained by oxidative polymerization of their natural precursors: 5,6 dihydroxyindole and its 2-carboxy derivative (DHICA). The simultaneous presence of ionic and electronic charge carriers makes these pigments promising materials for applications in bioelectronics. In this computational study we build a structural model of DHICA melanin considering the interplay between its many degrees of freedom, then we examine the electronic structure of representative oligomers. We find that a non-vanishing dipole along the polymer chain sets this system apart from conventional polymer semiconductors, determining its electronic structure, reactivity toward oxidation and localization of the charge carriers. Our work sheds light on previously unnoticed features of DHICA melanin that not only fit well with its radical scavenging and photoprotective properties, but open new perspectives towards understanding and tuning charge transport in this class of materials.<br></p></div></div></div>


2021 ◽  
Vol 9 (36) ◽  
pp. 20653-20663
Author(s):  
Johanna Eichhorn ◽  
Simon P. Lechner ◽  
Chang-Ming Jiang ◽  
Giulia Folchi Heunecke ◽  
Frans Munnik ◽  
...  

The (opto)electronic properties of Ta3N5 photoelectrodes are often dominated by defects, but precise control of these defects provides new insight into the electronic structure, photocarrier transport, and photoelectrochemical function.


2001 ◽  
Vol 172 (1-2) ◽  
pp. 8-17 ◽  
Author(s):  
A. Juan ◽  
B. Irigoyen ◽  
S. Gesari

2000 ◽  
Vol 80 (3) ◽  
pp. 379-394 ◽  
Author(s):  
Bala Ramalingam ◽  
Jan Vanek ◽  
J. M. Maclaren ◽  
M. E. Mchenry ◽  
W. M. Garrisonjr

2002 ◽  
Vol 224-226 ◽  
pp. 355-358 ◽  
Author(s):  
Xiaoping Han ◽  
Yao Zhang ◽  
Sheng Kai Gong ◽  
Hui Bin Xu

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