EXPERIMENTAL

M.p.s are not corrected, Tottoli apparatus; IR spectra [ν/cm^-1], Beckmann IR-20A spectrometer; UV spectra, _Carl Zeiss RPQ 20A/C or Pye Unicam SP 8-100 instruments (λmax[nm](ε)); Mass spectra (MS(EI)) at 70 eV, CEC 21-490 Bell-Howard spectrometer (m/e [amu](% base peak)); MS in chemical ionization mode (CH4, 1 Torr), GC-MS system HP 5980 A, Hewlett-Packard; ¹H NMR spectra, Bruker WP 80 CW spectrometer: δ[ppm](multiplicity, apparent coupling constant J[Hz], number of protons, attribution [Eu(dpm), relative induced shift]), s, singlet; br, broad; d, doublet; t, triplet; qa, quartet; m, multiplet; δTMS = 0.0 ppm; ¹³C NMR spectra Bruker WP spectrometer (15.08 MHz, spectrum width: 3750 Hz, 4096 points, FT mode): δ[ppm](multiplicity, apparent ¹L coupling constants [± 2 Hz]

Edit: corrections per ornery_chemist