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Inne
Synthesis and crystal structure of europium(II) tartrate tetrahydrate, [Eu(C4H4O6)(H2O)2](H2O)2.
Autorzy
Rok wydania
2000
Czasopismo
Zeitschrift für Anorganische und Allgemeine Chemie
Numer woluminu
626
Strony
2441-2442
DOI
10.1002/1521-3749(200012)626:123.0.CO;2-L
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Single crystals of [Eu(C4H4O6)(H2O)2](H2O)2 were obtained from the combination of solutions of EuCl2, previously obtained by electrolysis of an aqueous solution of EuCl3, and tartraric acid, neutralized by LiOH. The crystal structure (orthorhombic, P212121, Z = 4, a = 948.9(1), b = 954.6(1), c = 1098.4(1) pm; R(F) = 0.0242 and Rw(F2) = 0.0585 for I > 2σ(I); R(F) = 0.0256 and Rw(F2) = 0.0592 for all data) is isotypic with [Ca(C4H4O6)(H2O)2](H2O)2 and [Sr(C4H4O6)(H2O)2](H2O)2 exhibiting a three-dimensional structure. The divalent cations (Eu2+, Ca2+, Sr2+) are eight-coordinate by oxygen atoms that originate from carboxylate and hydroxyl groups of the tartraric dianion and two of the four water molecules.
Adres publiczny
https://doi.org/10.1002/1521-3749(200012)626:123.0.CO;2-L
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