Semi-empirical LCAO MO theory for infinite systems. Part 3.—Regular boron—nitrogen polymers

1973 ◽  
Vol 69 (0) ◽  
pp. 968-974 ◽  
Author(s):  
David R. Armstrong ◽  
Brendan J. McAloon ◽  
Peter G. Perkins
Keyword(s):  
Infinite Systems ◽  
Semi Empirical ◽  
Lcao Mo Theory ◽  
Boron Nitrogen ◽  
Lcao Mo ◽  
Mo Theory

Role of population analysis in LCAO-MO theory of transition-metal clusters

1975 ◽  
Vol 25 (11) ◽  
pp. 1201-1207 ◽  
Author(s):  
J. Málek ◽  
R. A. Evarestov ◽  
A. N. Ermoshkin ◽  
B. Hejda ◽  
K. Polák
Keyword(s):  
Transition Metal ◽  
Metal Clusters ◽  
Population Analysis ◽  
Transition Metal Clusters ◽  
Lcao Mo Theory ◽  
Lcao Mo ◽  
Mo Theory

LCAO MO theory illustrated by its application to H2

1971 ◽  
Vol 48 (8) ◽  
pp. 494 ◽  
Author(s):  
Micheal J. S. Dewar ◽  
Jozsef Kelemen
Keyword(s):  
Lcao Mo Theory ◽  
Lcao Mo ◽  
Mo Theory

Quantum polyhedra in LCAO MO theory

2015 ◽  
Vol 114 (7-8) ◽  
pp. 1236-1249 ◽  
Author(s):  
Ramon Carbó-Dorca
Keyword(s):  
Lcao Mo Theory ◽  
Lcao Mo ◽  
Mo Theory

scholarly journals EPR-Untersuchungen an elektrolytisch erzeugtem SO2

1968 ◽  
Vol 23 (5) ◽  
pp. 695-702 ◽  
Author(s):  
K.P. Dinse ◽  
K. Möbius
Keyword(s):  
Density Distribution ◽  
Spin Density ◽  
Spin Density Distribution ◽  
Counter Ions ◽  
Wide Range ◽  
Solvent Molecules ◽  
Temperature Dependance ◽  
Lcao Mo Theory ◽  
Lcao Mo ◽  
Mo Theory

From the triatomic molecule SO2 with 18 valency electrons we generated the mononegative radical ion with the aid of electrolytic techniques. In this way we could vary the radical concentration over a wide range and could also study the influence of counter ions and solvent molecules. The semi-empirical LCAO-MO theory of WALSH was used to calculate the g-factor shift. UV spectroscopic data of SO2 and Hückel-MO-calculations of the spin density distribution of the unpaired electron in the antibonding MO of SO2- resulted in Δgtheor = (3.9 ± 0.6) x 10-3 which agrees rather well with Δgexp = (3.414 ± 0.003) x 10-3. The quoted error of the theoretical value refers to approximations, which have to be introduced in addition to the approximations of the LCAO-MO theory of WALSH. The HMO spin density distribution compares nicely with the distribution calculated from anisotropic hfs constants of SO2- in a KCl single crystal which have been measured recently by SCHNEIDER et al. Higher concentrations of SO2 molecules resulted in another EPR line with Δgexp = 4.6 x 10-3 which we attribute to the solvated radical ion (SO2)xSO2-. From the temperature dependance of the concentration ratio of the radical species in we determined W = - 6.9 kcal mol-1, x = 2, and K(0 °C) = 8.0 x 10-5 mol2 lit-2.

Mobile Bond Orders of Some Polyphenyls from SCF—LCAO—MO Theory

1964 ◽  
Vol 40 (11) ◽  
pp. 3320-3323 ◽  
Author(s):  
Sook‐Il Kwun ◽  
Taikyue Ree ◽  
Henry Eyring
Keyword(s):  
Bond Orders ◽  
Lcao Mo Theory ◽  
Lcao Mo ◽  
Mo Theory
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