Abstract
Magnetic and spectral data are reported for the complexes LnL3 · 2H2O (Ln = lanthanide; LH = 2-thenoyltrifluoroacetone). The magnetic moments of the samarium and europium complexes are strongly temperature-dependent. The values of μeff for the other lanthanide chelates are close to those reported for other corresponding lanthanide compounds. The values of the Weiss constant θ for LnL3 · 2H2O (Ln = Gd, Tb, Dy, Ho, Er or Tm) are quite small (< 12 K), while those for Ln = Ce, Pr, Nd or Yb range from 29–104 K. The visible spectra of the complexes LnL3 · 2H2O (Ln = Pr, Nd, Sm, Dy, Ho, Er, and Tm) display the usual line-like absorption bands; hypersensitive transitions of Nd, Ho, Er and Tm complexes were observed with extinction coefficients many times greater than those found for the aqueous ions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
