scholarly journals A radical mixed-ligand gold bis(dithiolene) complex

2021 ◽  
Vol 57 (13) ◽  
pp. 1615-1618
Author(s):  
Romain Perochon ◽  
Frédéric Barrière ◽  
Olivier Jeannin ◽  
Lidia Piekara-Sady ◽  
Marc Fourmigué
Keyword(s):  
Electronic Structure ◽  
Structural Features ◽  
Mixed Ligand

Asymmetry in the electronic structure of a mixed-ligand gold bis(dithiolene) complex explains its peculiar optical, electrochemical and structural features.

Structurally-modified subphthalocyanines: molecular design towards realization of expected properties from the electronic structure and structural features of subphthalocyanine

2014 ◽  
Vol 50 (53) ◽  
pp. 6949-6966 ◽  
Author(s):  
Soji Shimizu ◽  
Nagao Kobayashi
Keyword(s):  
Electronic Structure ◽  
Molecular Design ◽  
Structural Features ◽  
Feature Article ◽  
System 2

This feature article summarizes recent contributions of the authors in the synthesis of structurally-modified subphthalocyanines, which covers (1) modification of the conjugated system, (2) core-modification, and (3) exterior-modification.

scholarly journals Structural Features That Stabilize ZnO Clusters: An Electronic Structure Approach

Computation ◽  
2013 ◽  
Vol 1 (1) ◽  
pp. 16-26 ◽  
Author(s):  
Csaba Szakacs ◽  
Erika Merschrod S. ◽  
Kristin Poduska
Keyword(s):  
Electronic Structure ◽  
Structural Features ◽  
Structure Approach ◽  
Zno Clusters

General Screening of Surface Alloys for Catalysis

2020 ◽  
Author(s):  
Matthew Montemore ◽  
Chukwudi F. Nwaokorie ◽  
Gbolade O. Kayode
Keyword(s):  
Electronic Structure ◽  
Catalytic Performance ◽  
Structural Features ◽  
Design Parameters ◽  
Surface Alloys ◽  
Catalytic Surfaces ◽  
Challenges And Opportunities ◽  
Adsorption Energies ◽  
Using Data ◽  
Structure Properties

Intensive research in catalysis has resulted in design parameters for many important catalytic reactions; however, designing new catalysts remains difficult, partly due to the time and expense needed to screen a large number of potential catalytic surfaces. Here, we create a general, efficient model that can be used to screen surface alloys for many reactions without any quantum-based calculations. This model allows the prediction of the adsorption energies of a variety of species (explicitly shown for C, N, O, OH, H, S, K, F) on metal alloy surfaces that include combinations of nearly all of the d-block metals. We find that a few simple structural features, chosen using data-driven techniques and physical understanding, can be used to predict electronic structure properties. These electronic structure properties are then used to predict adsorption energies, which are in turn used to predict catalytic performance. This framework is interpretable and gives insight into how underlying structural features affect adsorption and catalytic performance. We apply the model to screen more than 10<sup>7</sup> unique surface sites on approximately 10<sup>6</sup> unique surfaces for 7 important reactions. We identify novel surfaces with high predicted catalytic performance, and demonstrate challenges and opportunities in catalyst development using surface alloys. This work shows the utility of a general, reusable model that can be applied in new contexts without requiring new data to be generated.<br>

Protonation of 4 H-Pyran-4-one and its Sulfur Analogues. MNDO Study

1984 ◽  
Vol 39 (3) ◽  
pp. 267-275 ◽  
Author(s):  
Mirjana Eckert-Maksić
Keyword(s):  
Electronic Structure ◽  
Experimental Evidence ◽  
Electron Density ◽  
Structural Features ◽  
Electron Drift ◽  
Strong Polarization ◽  
Appreciable Increase ◽  
Cyclic Conjugation ◽  
Molecular And Electronic Structure ◽  
Good Agreement

AbstractThe molecular and electronic structure of 4H-pyran-4-one and its mono- and disubstituted sulfur analogues (1-4) are studied by the MNDO method. The salient structural features are qualitatively reproduced and the trend of changes of geometric parameters is in good agreement with experiment. The charge distributions exhibit strong polarization due to the large π-electron drift toward the exo-heteroatom. The protonated conjugated acids are considered too. It is found that exo-heteroatom protonation is favoured by 60-80 kcal/mol over the attachment of the proton to the intraring heteroatom. This is in accordance with experimental evidence. It is rationalized by the higher electron density centered on the exo-heteroatom and the appreciable increase in aromatic cyclic conjugation taking place upon the exo-protonation.

Structural features of nickel(II) mixed ligand complexes with mefenamic acid and nitrogen donor ligands

2020 ◽  
pp. 129632
Author(s):  
Ginikachukwu Grace Nnabuike ◽  
Sukanta Mondal ◽  
Sunita Salunke-Gawali ◽  
Archana S. Patil ◽  
Ray J. Butcher ◽  
...  
Keyword(s):  
Mefenamic Acid ◽  
Structural Features ◽  
Mixed Ligand ◽  
Donor Ligands ◽  
Mixed Ligand Complexes ◽  
Nitrogen Donor Ligands ◽  
Nitrogen Donor
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