Sodium Triaqua(ethylenediaminetetraacetato)lanthanate(III) Pentahydrate and the Isomorphous Neodymium(III) and Europium(III) Salts

Abstract

Sodium triaqua[(1,2-ethanediyldinitrilo-κ 2 N,N')tetraacetato-κ 4 O 1 ,O 2 ,O 3 ,O 4 ]lanthanate(III) pentahydrate, Na[La(C 10 H 12 N 2 O 8 )(H 2 O) 3 ].5H 2 O, sodium triaqua[(1,2-ethanediyldinitrilo-κ 2 N,N')tetraacetato-κ 4 O 1 ,O 2 ,O 3 ,O 4 ]-neodymate(III) pentahydrate, Na[Nd(C 10 H 12 N 2 O 8 )(H 2 O) 3 ].5H 2 O, and sodium triaqua[(1,2-ethanediyldinitrilo-κ 2 N,N')tetraacetato-κ 4 O 1 ,O 2 ,O 3 ,O 4 ]europate(III) pentahydrate, Na[Eu(C 10 H 12 N 2 O 8 )(H 2 O) 3 ].5H 2 O, are isomorphous and isostructural ; all contain nine-coordinate lanthanoid ions, each of which bonds to two N atoms, four acetate O atoms and three water molecules.