COMPARATIVE PM3-MO STUDY OF THE E2O2 AND E2N2 (E = P,AS) 4-MEMBERED RING-SYSTEMS

Authors
SILAGHIDUMITRESCU I HOREA A PASCU S SILAGHIDUMITRESCU L HAIDUC I
Citation
I. Silaghidumitrescu et al., COMPARATIVE PM3-MO STUDY OF THE E2O2 AND E2N2 (E = P,AS) 4-MEMBERED RING-SYSTEMS, Phosphorus, sulfur and silicon and the related elements, 125, 1997, pp. 441-444
Citations number
13
Journal title
Phosphorus, sulfur and silicon and the related elements → ACNP
ISSN journal
10426507
Volume
125
Year of publication
1997
Pages
441 - 444
Database
ISI
SICI code
1042-6507(1997)125:<441:CPSOTE>2.0.ZU;2-F
Abstract
It seems that the relative stability of the E2O2 and E2N2 (E=P,As) rin gs is mainly determined by the different weights of the oxygen and nit rogen p orbitals to the HOMO's of these systems which in turn reflects a more favourable orbital mixing in the rings where the difference of the electronegativity of the constituents is smaller. This might expl ain the great diversity of the cyclodiphosphazane (arsazane) rings com paratively to the cyclodiphosphoxane (arsoxane) rings.