SYNTHESIS AND CHARACTERIZATION OF LANTHANIDE R-(-ALPHA-METHOXY-ALPHA-(TRIFLUOROMETHYL) AND S-(-)-ALPHA-METHOXY-ALPHA-(TRIFLUOROMETHYL) PHENYLACETATES (MTPA)())
O. Cussigh et al., SYNTHESIS AND CHARACTERIZATION OF LANTHANIDE R-(-ALPHA-METHOXY-ALPHA-(TRIFLUOROMETHYL) AND S-(-)-ALPHA-METHOXY-ALPHA-(TRIFLUOROMETHYL) PHENYLACETATES (MTPA)()), Journal of coordination chemistry, 41(1-2), 1997, pp. 27-33
The lanthanide salts with MTPA were obtained by reaction of the acid w
ith the respective basic carbonates. The compounds with composition {L
n[R-(+)-MTPA](3)OH}-H3O+ and {Ln[S-(-)MTPA](3)OH}-H3O+ (Ln = Eu, Nd, T
b) were characterized by microanalysis, IR spectra, H-1 NMR spectrosco
py, absorption spectra of the neodymium salts, emission spectra of the
europium and terbium compounds and TG analysis. Circularly polarized
luminescence was observed in the Eu salts.