{NiII8LnIII6} (Ln = Gd, Dy) rod-like nano-sized heteronuclear coordination clusters with a double carbonate bridge skeleton and remarkable MCE behaviour. Issue 20 (29th April 2016)

• Record Type: Journal Article
• Authors: Guarda, Eliana; Bader, Katharina; van Slageren, Joris; Alborés, Pablo
• Is Part Of: Dalton transactions. Volume 45:Issue 20(2016)
• Page Start: 8566
• Page End: 8572
• Publication Date: 2016-04-29
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c6dt00859c
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : We prepared through CO2 air fixation novel Ni8 Ln6 complexes showing a remarkable μ5 -carbonate bridged octanuclear planar {Ni4 Ln4 } core and unusual MCE behaviour. Abstract : The newly obtained complexes [NiII8LnIII6(Piv)16 (teaH)6 (OCH3 )2 (CO3 )2 (H2 O)2 ] Ln = Gd, Dy, show a remarkable μ5 -carbonate bridged octanuclear planar {Ni4 Ln4 } core further capped with embedded {Ni3 Ln} cubane motifs to afford a rod shaped nano-sized molecule of about 1.2 × 2.8 nm. Unusual MCE behaviour has been found due to multiple low lying excited states arising from competing ferromagnetic and anti-ferromagnetic Ni–Ni and Ni–Ln exchange interactions.