Abstract
Synthesis of lanthanide-containing (Ln = Eu, Tb, Nd, Gd) monomers based on unsaturated acids is described, namely, of LnL1 3 · nH2O (L1 are anions of acrylic and methacrylic acids) and Ln2L2 3 · nH2O (L2 are anions of maleic and fumaric acids); n = 0–3, 6. The compounds were characterized by elemental analysis, thermogravimetry, and IR and luminescence spectroscopy. Europium methacrylate Eu(Macr)3 was studied using X-ray diffraction analysis: rhombic system, a = 14.831(3) Å, b = 12.964(2) Å, c = 7.761(1) Å, space group Cmc21, V = 1483.5(4) Å3, ρ(calcd) = 1.823 g/cm3. Infinite chains of Eu(Macr)3 molecules are directed along crystallographic axis c and are bound by van der Waals interactions. Radical polymerization of Eu(III) and Tb(III) acrylates and Eu(III) methacrylate yields lanthanide-containing polymers with a high content of Ln (40–50 mass %). Their spectral and luminescent properties are studied.
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Petrochenkova, N.V., Bukvetskii, B.V., Mirochnik, A.G. et al. Lanthanide-Containing Monomers Produced from Unsaturated Acids: Synthesis, Polymerization, and Spectral and Luminescent Properties. Crystal Structure of Europium(III) Methacrylate. Russian Journal of Coordination Chemistry 28, 64–70 (2002). https://doi.org/10.1023/A:1013772006191
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DOI: https://doi.org/10.1023/A:1013772006191