Original Articles: 2011 Vol: 3 Issue: 2
Molecular Mechanics Based Study of Molecular Orbitals of Ruthenium (II) Iodide
Abstract
We have studied the molecular orbitals of ruthenium (II) iodide, in order to study the extent
of contribution of 4d, 5s and 5p orbitals in the formation of molecular orbitals. The 3D
modeling and geometry optimization of the ruthenium (II) iodide have been done by CAChe
software using molecular mechanics with EHT option. Eigenvector analysis shows that 4dx2-
y2 and 4dxy orbitals of ruthenium play a major role in bonding between ruthenium and
iodide, 5s orbital is next and 4p orbitals have a negligible role. There is a difference in
energy levels of s and p orbitals of iodide are 0.0.7472 eV. The overlap population analysis
shows that the nonbonding orbitals are present in 6th and 7th molecular orbitals. No
molecular orbital is formed by only two atomic orbitals. All molecular orbitals have
contribution from many atomic orbitals; the difference is only in extent of involvement.