Structural isomerism: ionization isomers
المؤلف:
CATHERINE E. HOUSECROFT AND ALAN G. SHARPE
المصدر:
INORGANIC CHEMISTRY
الجزء والصفحة:
2th ed p 548
27-2-2017
1209
Structural isomerism: ionization isomers
Ionization isomers result from the interchange of an anionic ligand within the first coordination sphere with an anion outside the coordination sphere. Examples of ionization isomers are violet [Co(NH3)5Br][SO4] (prepared by reaction scheme 1.1) and red [Co(NH3)5(SO4)]Br (prepared by reaction sequence 1.2). These isomers can be readily distinguished by appropriate qualitative tests for ionic sulfate or bromide, respectively. The isomers are also easily distinguished by IR spectroscopy; free and coordinated sulfate ions give rise to one or three IR active S_O stretching vibrations respectively.
(1.1)
(1.2)
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