Valence Bond Theory and Coordination Complexes

Flashcards covering essential concepts from the lecture on Valence Bond Theory and coordination complexes.

What is the geometry predicted by VSEPR for hybrid orbitals formed in octahedral complexes?

Octahedral geometry.

Which orbitals hybridize to form equivalent hybrid orbitals in octahedral geometry?

dsp³ hybrid orbitals.

What kind of geometry do hybrid orbitals adopt in tetrahedral complexes according to VSEPR?

Tetrahedral geometry.

What is the hybridization involving square-planar complexes in coordination chemistry?

dsp² hybridization.

What effect do ligands have when they approach the metal in octahedral complexes?

Ligands cause the d orbitals to split into two energy levels due to electrostatic repulsion.

In the context of crystal field theory, how are ligands treated when forming coordination compounds?

Ligands are treated as negative point charges interacting with the positive metal cation.

What phenomenon does crystal field theory explain about coordination compounds?

It predicts the electronic magnetic properties of coordination compounds.

What can result from electronic transitions in coordination complexes according to the lecture?

Colors related to the wavelength of light absorbed by the complex.

What do d-orbitals experience as ligands approach during the formation of hybrid orbitals?

Electron-electron repulsion.

How does the energy of d-orbitals change when ligands bond to a metal center?

The energy splits into two sets of levels, with one set higher in energy due to stronger repulsion.