Transition Metals and Coordination Compounds Flashcards
(14 cards)
What is the oxidation # for Ethylenediamine (en)
0
What is the oxidation # for oxalate (ox)
-2
What is a neutral ligand?
A ligand that does not carry any overall charge
What is a cis-isomer
They don’t go through/across the central atom (They are adjacent to each other)
What is a trans-isomer
They go through/across the central atom
What is the Crystal Field Theory?
The size of the crystal field splitting energy, Δ0, depends on the kinds of ligands, their relative positions on the complex, the kind of metal ion, and the oxidation state #
What are the weak field agents?
H2O, F-, Cl-, OH-
What are the strong field agents?
CO, CN-, NH3, PPh3
What does the Crystal Field Theory help us understand?
It helps us to understand their colors and magnetic properties.
What complexes exhibit geometric isomerism
Complexes must have at least two different ligands and/or cis-trans isomerism
Complexes with strong-field ligands have a high crystal field splitting energy (Δ) and, therefore, a low
wavelength of absorbed light.
True
If a complex ion absorbs visible light, it appears as the complementary color.
True
High Ligand, is it a low or high spin
Low Spin
Low Ligand, is it a low or high spin
High Spin
