2,2 -Bipyridyl uranium complexes

For the order of complexing ability for ligands DMSO > py > phen > bipy (30) is consistent with that suggested above. Because of their low complexing ability with this group, bipyridyl and phenanthro-line yield only protonated cations in acidic solutions containing UO " (514, 516) but in aqueous or alcoholic solution, chelate complexes may be formed in which the uranium atom can exhibit a coordination number of either 6 or 7 (496, 514-516, 601, 635). 

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