Jump to main content
Jump to site search


Novel mononuclear Ln complexes with pyrazine-2-carboxylate and acetylacetonate co-ligands: remarkable Single Molecule Magnet behavior of Yb derivative

Abstract

A series of novel isomorphic mononuclear complexes [Ln(PyrCOO)(acac)2(H2O)2] (Ln = Eu (1), Gd (2), Tb (3), Dy (4), Ho (5), Er (6), Tm (7), Yb (8), Y(9); acac- – acetylacetonate (pentane-2,4-dionate) anion, PyrCOOH is pyrazine-2-carboxylic acid) were prepared. Slow magnetic relaxation indicating SMM behavior was found in complexes 3, 4, 6 and 8. For 4 (Dy), the anisotropy barrier is Δeff/kB = 77 K under the dc field of 1500 Oe. For 8 (Yb), the anisotropy barrier is Δeff/kB = 54 K under the dc field of 2000 Oe which is the highest presently known value for molecular Yb carboxylate complex and for Yb molecular complexes in general.

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Jun 2017, accepted on 01 Aug 2017 and first published on 01 Aug 2017


Article type: Paper
DOI: 10.1039/C7DT02175E
Citation: Dalton Trans., 2017, Accepted Manuscript
  •   Request permissions

    Novel mononuclear Ln complexes with pyrazine-2-carboxylate and acetylacetonate co-ligands: remarkable Single Molecule Magnet behavior of Yb derivative

    A. V. Gavrikov, N. Efimov, Z. Dobrohotova, A. B. Ilyukhin, P. N. Vasilyev and V. M. Novotortsev, Dalton Trans., 2017, Accepted Manuscript , DOI: 10.1039/C7DT02175E

Search articles by author

Spotlight

Advertisements