Results 41 to 50 of about 1,039 (144)

Some molecular orbital calculations of the potential energy surfaces of organic molecules

open access: yes, 2017
In this thesis, molecular orbital calculations are used to study a variety of organic reactions, most of which involve molecules containing a large number of atoms.
Clyne, L.
core   +1 more source

Molecular orbital theory and its application to some organic molecules

open access: yes, 1997
Bu çalışmada, Hückel metodu kullanılarak doymamış hidrokarbonların n moleküler orbitallerinin açıklanmasıyla Moleküler Orbitallerin simetri özellikleri araştırıldı.
Kabalcı, İdris
core  

Investigation of some molecules with Hückel Molecular Orbital (HMO) theory and comparison with spectroscopic results in infrared and ultraviolet region

open access: yes, 1987
Bu çalışmada HMO yöntemi kullanılarak fenol, m-nitrofcnol ve ß-naftolun MO dalga fonksiyonları, geçiş enerjileri, delokalizasyon enerjileri, bağ mertebeleri, bağ uzunlukları, elektron ve yük yoğunlukları hesaplanmıştır.
Alper, Mürsel
core  

Molecular orbital investigation of chemisorption. I. Hydrogen on tungsten (100) surface [PDF]

open access: yes, 1973
The relative bonding energies of hydrogen chemisorbed at three symmetric sites on a W(100) surface were obtained by means of the extended Hückel molecular orbital theory (EHMO).
Hansen, Robert S.   +5 more
core   +1 more source

Properties of the Interstitial in the Diamond-Type Lattice

open access: yes, 1971
Linear combination of atomic orbital—molecular orbital cluster calculations using extended Hückel theory suggest that the interstitial carbon atom in diamond prefers an interstitialcy configuration. The predicted minimum-energy configuration changes
Watkins, G D   +4 more
core   +1 more source

Analysis of Aromatic Delocalization:  Individual Molecular Orbital Contributions to Nucleus-Independent Chemical Shifts

open access: yes, 2016
Individual molecular orbital (MO) contributions to the magnetic shielding of atoms as well as to the nucleus-independent chemical shifts (NICS) of aromatic compounds can be computed by the widely used gauge-including atomic orbital (GIAO) method ...
Thomas Heine (1289592)   +5 more
core   +1 more source

Analysis of Aromatic Delocalization: Individual Molecular Orbital Contributions to Nucleus-Independent Chemical Shifts

open access: yes, 2003
Individual molecular orbital (MO) contributions to the magnetic shielding of atoms as well as to the nucleus-independent chemical shifts (NICS) of aromatic compounds can be computed by the widely used gauge-including atomic orbital (GIAO) method ...
Heine, Thomas   +5 more
core   +1 more source

The Mechanism of Covalent Bonding: Analysis within the Hückel Model of Electronic Structure

open access: yes, 2007
The correct description and interpretation of covalent bonding require a quantum mechanical approach. Hückel molecular orbital theory, the simplest quantum mechanical model of molecular electronic structure, is (and in an accompanying online article ...
Bäck, Andreas,   +2 more
core  

ITERATIVE EXTENDED HÜCKEL THEORY

open access: yes, 1966
$^{1}$ R. Hoffmann, J. Chem. Phys. 39, 1307 (1963). $^{2}$ L. C. Cusachs, J. Chem. Phys. 43, 8157 (1965).Author Institution: Theoretical Biology Center; Department of Chemistry, State University of New York at Buffalo; Department of Chemistry, Stanford ...
Clarke, George A.   +9 more
core   +1 more source

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