3 public questions tagged with this topic.
[CoCl₂(en)2]+ has 2 bidentate en (4 donor atoms) and 2 Cl−, totaling 6 ligands. It is octahedral (Co₃+, d6).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Nomenclature of Coordination Compounds
[Co(en)2Cl₂]+ (Co₃+, d6) with 2 en and 2 Cl− is octahedral, and the trans isomer has Cl− ligands opposite each other.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Nomenclature of Coordination Compounds
The hexaamminecobalt(III) ion has octahedral geometry with d 2 sp 3 hybridization.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: General Properties of d-Block - Electronic Configuration and Trends
