Synthesis, characterization and crystal structure of tri-aquo bimalonate malonate samarium(III) monohydrate - Wenmei, X.; Qiguang, W.; Lan, Y.; Rudong, Y. (Elsevier)
A new complex of samarium(III) with malonic acid, Sm(HL)L.4H"2O (H"2L = malonic acid), was synthesized and characterized by elemental analysis, molar conductance, thermogravimetric analysis, IR and fluorescence spectra. The structure of the complex was determined by single crystal X-ray diffraction. The samarium ion is coordinated by six carboxylate and three water oxygen atoms which form a distorted monocapped square antiprism. The malonate (L^2^-) and bimalonate (HL^-) have different coordination behaviours. The structure is a three-dimensional samarium-malonate-bimalonate network. The SmO bond lengths are in the range 2.396(6)-2.725(5) Å.
http://linkinghub.elsevier.com/retrieve/pii/S0277-5387(00)83161-7
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