Isomerization in Coordination Compounds

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Isomerization in Coordination Compounds

• Do for octahedral Complexes

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Inner and Outer Spheres
CrCl3(H2O)3?2 H2O
CrCl2(H2O)4 Cl?H2O
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All compounds
Structural (constitutional)
Stereo
linkage ionization hydration
geometric optical
Co(NH3)5ClNO2 Co(NH3)5NO2Cl
Co(NH3)4Cl(H2O)Cl2 Co(NH3)4Cl2Cl?H2O
Co(NH3)5SCN2 Co(NH3)5NCS2
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Optical Isomers enantiomers (mirror
images) key to recognizing no mirror planes of
symmetry Type 1. arrangement of monodentate
ligands Type 2. arrangement of bidentate
ligands
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Geometric Isomers like cis-trans Use M
metal a, b, c, etc. are different
ligands Example 1 Co(NH3)4Cl2
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