6 Matching Annotations
- Feb 2022
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chem.libretexts.org chem.libretexts.org
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Geometric Isomers
Here, the atoms and the bonds remain the same, they only differ in the spatial arrangement of the atoms(ligands) around the central metal atom/ion
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For example, the (NO−2NO2−\ce{NO2^{-}}) ion is a ligand that can bind to the central atom through the nitrogen or the oxygen atom, but cannot bind to the central atom with both oxygen and nitrogen at once, in which case it would be called a polydentate ligand rather than an ambidentate ligand.
Di/Polydentate --- two or more bonding atoms which can bind with the central atom (simultaneously, AT THE SAME TIME) Ambidentate --- ligands which has two bonding atoms, can bind in two different ways (not simultaneously)
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The ligand(s) must have more than one donor atom, but bind to ion in only one place.
AMBIDENTATE LIGAND(can bind through two different atoms)
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A hydrate isomer is a specific kind of ionization isomer where a water molecule is one of the molecules that exchanges places.
SOLAVTE ISOMERISM(another type of structural isomerism)
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Ionization isomers occur when a ligand that is bound to the metal center exchanges places with an anion or neutral molecule that was originally outside the coordination complex.
LIGAND,(part of the complex entity), exchanges position with the COUNTER ION
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interchange of some ligands from the cation to the anion.
INTERCHANGE OF LIGANDS FROM CATION(+ve) TO ANION(-ve), OR VICE VERSA
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