Abstract
The synthesis and the magnetic properties of two new bimetallic chromium−vanadium ferrimagnets, compounds 1 and 2, are reported. They belong to a set of nonstoichiometric Prussian blue analogues CIyV[CrIII(CN)6]z·nH2O (C, alkali cation) with TC varying between 295 and 315 K (TC = 310 K for 1 and 315 K for 2). They are obtained through mild chemistry from the molecular precursor [CrIII(CN)6]3- and from vanadium VII salts. The synthetic conditions determine (i) the oxidation state of the vanadium (VII, VIII, or VIV), (ii) the stoichiometry, and (iii) hence the magnetic properties. The reported systems present a larger magnetization than the first reported V−Cr analogue (0.36NAβ for 1 and 0.40NAβ for 2). Furthermore, X-ray magnetic circular dichroism (XMCD) data demonstrate (i) the short-range antiferromagnetic coupling between the spins borne by the chromium(III) and vanadium ions and (ii) the reversal of the local magnetization on vanadium and chromium when changing the stoichiometry.
Sign-in/Register to access full text options 
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.
