SEMI-EMPIRICAL SCF-MO CALCULATIONS OF BACKBONE CONFORMATIONAL STATES IN SOME GLASSY POLYMERS

1981 ◽  
Vol 371 (1 Structure and) ◽  
pp. 299-300 ◽  
Author(s):  
John T. Bendler
Keyword(s):  
Glassy Polymers ◽  
Mo Calculations ◽  
Conformational States ◽  
Semi Empirical

Semi Empirical Study of a System Containing a Six-membered Ring

2004 ◽  
Vol 59 (11) ◽  
pp. 853-856
Author(s):  
H. Kara ◽  
Y. Yahsi ◽  
Y. Elerman ◽  
A. Elmali
Keyword(s):  
Chemical Potential ◽  
Chair Conformation ◽  
Membered Ring ◽  
Chemical Hardness ◽  
Mo Calculations ◽  
Lumo Energy ◽  
Conformational Interconversion ◽  
Homo And Lumo ◽  
Semi Empirical ◽  
Homo And Lumo Energy

Semi-empirical AM1 SCF-MO calculations have been used to find the structure optimization and conformational interconversion pathways of a system containing a six-membered ring. The system has the two symmetrical energy-minimum conformations, chair and twist. The chair conformation has the most stable geometry. Some quantum parameters such as HOMO and LUMO energy, the chemical hardness and chemical potential are discussed

The He(I) photoelectron spectra of the propenoyl halides

1987 ◽  
Vol 65 (4) ◽  
pp. 683-686 ◽  
Author(s):  
Dieter Klapstein ◽  
Robert T. O'Brien
Keyword(s):  
Related Species ◽  
Molecular Orbitals ◽  
Photoelectron Spectra ◽  
Mo Calculations ◽  
Sum Rule ◽  
Orbital Energies ◽  
Out Of Plane ◽  
Semi Empirical

The He(I) photoelectron spectra of propenal and the propenoyl halides, CH2=CHCOX, X = H, F, Cl, Br, were measured and interpreted with the aid of semi-empirical MO calculations, comparison with results for structurally related species, and a sum-rule for the out-of-plane orbital energies. Information concerning the identities and relative energies of the higher occupied molecular orbitals of the neutral molecules could be deduced from the spectra.

Semi-empirical MO calculations of some chloroborazines

1973 ◽  
Vol 35 (2) ◽  
pp. 660-662 ◽  
Author(s):  
V.M. Scherr ◽  
D.T. Haworth
Keyword(s):  
Mo Calculations ◽  
Semi Empirical
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