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Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, P. R. China
; Fax: +86-029-88302604
State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
Key Laboratory of Mesoscopic Chemistry of MOE, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
Dalton Trans., 2013,42, 3429-3433
07 Aug 2012,
26 Nov 2012
First published online
26 Nov 2012
Complexes containing a Ru2n+ core (n = 4, 5 or 6) have been of great interest because of their variety of electronic configurations and magnetic properties. Herein, we report a novel homovalent Ru26+-based complex, (H2pip)2[Ru2(hedp)2Cl2]·6H2O (pip = piperazine) (1), isolated by the direct reaction of the mixed-valent Ru25+-based anion Ru2(hedp)23− [hedp = 1-hydroxyethylidenediphosphonate, CH3C(OH)(PO3)2] with oxidant peracetic acid under room temperature conditions. Magnetic measurements unambiguously confirm that this complex contains four unpaired electrons with a spin ground state of S = 2.
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