In certain cases, achiral ligands can become chiral on coordination to a metal, leading to a complex that is chiral. Usually the non-chiral ligand contains a donor that rapidly inverts as a free ligand, but that becomes locked in one configuration on co-ordination. An example is MeNHCH_(2)CH_(2)NHMe, where two N atoms become chiral centres on co-ordination to a metal atom. Consider two bidentate ligands for square planar complexes only : A A to Me-NH-CH_(2)-CH_(2)-NHMe CD to Me-NH-CH_(2)-CH_(2)-NH_(2) In the complex solution [M(CD)_(2)], identify the complex isomer which does not have any mirror planes but is nor chiral.

In certain cases, achiral ligands can become chiral on coordination to

1.	In certain cases, achiral ligands can become chiral on coordination to a metal, leading to a complex that is chiral. Usually the non-chiral ligand contains a donor that rapidly inverts as a free ligand, but that becomes locked in one configuration on co-ordination. An example is MeNHCH_(2)CH_(2)NHMe, where two N atoms become chiral centres on co-ordination to a metal atom. Consider two bidentate ligands for square planar complexes only : A A to Me-NH-CH_(2)-CH_(2)-NHMe CD to Me-NH-CH_(2)-CH_(2)-NH_(2) In the complex solution [M(CD)_(2)], identify the complex isomer which does not have any mirror planes but is nor chiral.
Answer» Solution :(b) has CENTRE of SYMMETRY. (C ) has PLANE of symmetry, (a) and (d) are optically active.