Three-Layer Multiscale Approach Based on Extremely Localized Molecular Orbitals to Investigate Enzyme Reactions

2021 ◽  
Author(s):  
Giovanni Macetti ◽  
Alessandro Genoni
Keyword(s):  
Molecular Orbitals ◽  
Multiscale Approach ◽  
Localized Molecular Orbitals ◽  
Enzyme Reactions

Simple theoretical models for elimination reactions on polar catalysts; The reactivity of halogeno-, hydroxy-, amino- and mercaptopropane

1982 ◽  
Vol 47 (8) ◽  
pp. 2180-2189 ◽  
Author(s):  
Jiří Sedláček
Keyword(s):  
Theoretical Models ◽  
Molecular Orbitals ◽  
Localized Molecular Orbitals ◽  
Hydroxy Amino ◽  
Elimination Reactions ◽  
Simple Models

CNDO/2 calculations have been made for simple models of the adsorption of (CH3)2CHZ molecules (Z = Cl, OH, NH2, and SH) on the surface of polar catalysts. The results of these calculations and their interpretation by the method of configuration analysis in terms of uniformly localized molecular orbitals made it possible to explain satisfactorily a series of experimental facts. The mechanism and stereoselectivity of the reaction as well as reactivity trends for the series of the molecules studied are discussed.

Unitary Optimization of Localized Molecular Orbitals

2013 ◽  
Vol 9 (12) ◽  
pp. 5365-5372 ◽  
Author(s):  
Susi Lehtola ◽  
Hannes Jónsson
Keyword(s):  
Molecular Orbitals ◽  
Localized Molecular Orbitals

ChemInform Abstract: THE GAUCHE EFFEKT, A STUDY OF LOCALIZED MOLECULAR ORBITALS AND EXCITED-STATE GEOMETRIES IN FCH2OH

1973 ◽  
Vol 4 (40) ◽  
Author(s):  
SAUL WOLFE ◽  
LUIS M. TEL ◽  
W. J. HAINES ◽  
M. A. ROBB ◽  
I. G. CSIZMADIA
Keyword(s):  
Excited State ◽  
Molecular Orbitals ◽  
Localized Molecular Orbitals

The Electronic Structure and Localized Molecular Orbitals in S4N4 by the CNDO/BW Theory

1975 ◽  
Vol 53 (9) ◽  
pp. 1343-1347 ◽  
Author(s):  
M. S. Gopinathan ◽  
M. A. Whitehead
Keyword(s):  
Electronic Structure ◽  
Experimental Studies ◽  
Molecular Orbitals ◽  
Electron Delocalization ◽  
Localized Molecular Orbitals

The energies calculated for tetranitrogen tetrasulfide, S4N4, by the CNDO/BW theory favor a structure with coplanar nitrogen atoms and not a structure with coplanar sulfur atoms. Both structures have been proposed from experimental studies. Localized molecular orbitals are calculated for S4N4 and used to choose the appropriate Lewis structure for the molecule. The hybridization at the nitrogen and sulfur atoms is discussed. There is electron delocalization in the molecule, the S—N bond is a bent bond involving pure p-orbitals on the sulfur and nitrogen atoms and there is a pure p-bent bond between the sulfur atoms on the same side of the coplanar nitrogen atoms. There is no N—N bond in S4N4.

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