Abstract
Reactions in water between lanthanide chlorides and the di-sodium salt of 1,2-phenylenediacetic acid, Na2(o-pda), lead to two families of coordination polymers with respective chemical formulae [La2(o-pda)3(H2O)4,4H2O]∞ (1) and [Ln2(o-pda)3(H2O)2,2H2O]∞ (2) for Ln=Ce-Nd, Sm-Lu and Y. Compound 1 crystallises in the monoclinic system, space group C2/c (n°15), with a=28.195(5)Å, b=12.2305(3)Å, c=8.7607(1)Å, β=98.835(1)° and Z=4. Its crystal structure and thermal properties are described. Compounds of family 2 are isostructural to a previously reported crystal structure. Luminescence properties of Eu- and Tb-based compounds have been studied.
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