Rl. Davidovich et al., THE COORDINATION ENVIRONMENT OF THE BISMUTH(III) ATOM TRIPOTASSIUM DI(NITRILOTRIACETATO)BISMUTHATE(III) DIHYDRATE, Silicon, germanium, tin and lead compounds, 21(10), 1998, pp. 601-603
The bismuth atom in centrosymmetric tripotassium di(nitrilotriacetato)
bismuthate(III) dihydrate displays cubic coordination, the atom being
(N + 3O) chelated by the carboxylato group. The crystal structure cons
ists of potassium cations that are linked bismuthate anions by carboxy
late bridges; hydrogen bonds link the lattice water molecules with the
se ions into a three-dimensional network.