| Literature DB >> 29076224 |
Lei Qin1, Jared Singleton2, Wei-Peng Chen1, Hiroyuki Nojiri3, Larry Engelhardt2, Richard E P Winpenny4, Yan-Zhen Zheng1.
Abstract
Chromium lanthanide heterometallic wheel complexes {Cr8 Ln8 } (Ln=Gd, Dy and Y) with alternating metal centres are presented. Quantum Monte Carlo simulations reveal antiferromagnetic exchange-coupling constants with an average of 2.1 K within the {Cr8 Gd8 } wheel, which leads to a large ground spin state (ST =16) that is confirmed by magnetization studies up to 20 Tesla. The {Cr8 Dy8 } wheel is a single-molecule magnet.Entities:
Keywords: chromium; cyclic coordination clusters; exchange coupling; lanthanides; single-molecule magnets
Year: 2017 PMID: 29076224 DOI: 10.1002/anie.201709650
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336