General Science • ChemistryHard
Which transition metal complex exhibits optical isomerism due to the presence of three symmetrical bidentate ligands, such as [Co(en)3]3+?
A. Square planar complexes
B. Octahedral complexes with cis/trans isomers only
C. Octahedral complexes with three symmetrical bidentate ligands lacking a plane of symmetry✓ Correct Answer
D. Tetrahedral complexes with four different monodentate ligands
💡 Solution & Explanation
Octahedral complexes containing three symmetrical bidentate ligands, such as [Co(en)3]3+, lack a plane of symmetry and form non-superimposable mirror images that rotate plane-polarized light. Other geometries like square planar or tetrahedral complexes with identical ligands typically lack optical isomerism of this specific type.
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