Consider the oxalate (ox) ligand and answer the following questions: (i) Draw the structure of the ox ligand. (ii) Identify all the donor atoms of the ligand. (iii) What is the denticity of the ligand? (iv) What is the charge of the ligand? (v) Draw the structure of a homoleptic octahedral complex with ox as the ligand. Clearly show the geometry at the metal centre. (vi) Identify the stereoisomer in the structure drawn.
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
(b) Consider the oxalate (ox) ligand and answer the following questions:
(i) Draw the structure of the ox ligand.
(ii) Identify all the donor atoms of the ligand.
(iii) What is the denticity of the ligand?
(iv) What is the charge of the ligand?
(v) Draw the structure of a homoleptic octahedral complex with ox as the ligand.
Clearly show the geometry at the metal centre.
(vi) Identify the stereoisomer in the structure drawn.
Denticity: The number of donor atoms of a ligand that bite the metal atom is called the denticity of the ligand.
Ligands can be monodentate, bidentate and polydentate.
Example: Ammonia bite metal atom by one donor atom, so ammonia is monodentate.
Oxalate bite metal atom with two O-atom, so it is bidentate ligand.
Stereoisomers which are non-superimposable mirror images of each other are called Enantiomers.
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