Chromium complexes hydrate isomerism

Hydrate isomerism is quite analogous to ionization isomerism. The compound Cr(H20)5Ci2+ (C1 )2 H20 contains one Cr—Cl bond and five Cr—O bonds per complex whereas its isomer, Cr(H20)4Clt C1 2H20, has two Cr—Cl bonds and only four Cr—O bonds per complex. The first of these yields three ions per gram-atom of chromium when dissolved in water (as may be checked by freezing-point measurements), whereas the second yields but two ions per complex. Those water molecules not directly coordinated to chromium are probably present as lattice water. ... 

Chromium(V) complexes magnetic behavior, 271 spectra, 251 Chtoraium trichloride hexahydrate hydrate isomerism, 183 Chugacv s rule of rings, 14 Cts effect, 317... 

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