Crystal field theory

1. CFT views the interaction between metal ions and ligands in complexes in terms of electrostatic _______________ and ____________________.

• attraction, repulsion

• positive, negative

• cation, anion

Which orbital is very important in CFT?

• orbital p

• orbital s

• orbital d

When the ligands move along the x, y and z axes of d orbital in metal ion (octahedral geometry), they approach directly toward or between the lobes. Name the d orbitals that feel less repulsion?

• dz² and dx²- y²

• dxy_, dxz and dyz

• dz²

• dxy and dxz

When the ligands move along the x, y and z axes of d orbital in metal ion (octahedral geometry), they approach directly toward or between the lobes. Name the d orbitals that feel strong repulsion?

• dz² and dx²- y²

• dxy_, dxz and dyz

• dz²

• dxy and dxz

When the ligands move along the x, y and z axes of d orbital in metal ion (tetrahedral geometry), none of the five d orbitals is directly in their path. Name the d orbitals that feel strong repulsion?

• dz² and dx²- y²

• dxy_, dxz and dyz

• dz²

• dxy and dxz

When the ligands move along the x, y and z axes of d orbital in metal ion (tetrahedral geometry), none of the five d orbitals is directly in their path. Name the d orbitals that lower energy

• dz² and dx²- y²

• dxy_, dxz and dyz

• d_z²

• dxy and dxz

The energy diagram of the d orbital energy splitting complexes in octahedral geometry, shows the d orbitals with higher in energy (e_g) which refer to _____________ d orbitals

• dz²

• dxy_, dxz and dyz

• dz² and dx²- y²

• dxy and dxz

The energy diagram of the d orbital energy splitting complexes in tetrahedral geometry, shows the d orbitals with higher in energy (t_2g) which refer to _____________ d orbitals

• dz²

• dxy_, dxz and dyz

• dz² and dx²- y²

• dxy and dxz

The splitting of orbital energies is called the crystal field effect

• True

• False

1 delta is similar to 10 Dq

• true

• false