Direct synthesis of an heterometallic {(Mn3Cr4III)-Cr-II} wheel by decomposition of Reineckes salt

作者：Semenaka Valentyna V; Nesterova Oksana V; Kokozay Volodymyr N^*; Zybatyuk Roman I; Shishkin Oleg V; Boca Roman; Shevchenko Denys V; Huang Ping; Styring Stenbjorn

来源：Dalton Transactions, 2010, 39(9): 2344-2349.

DOI：10.1039/b920375c

A new heterometallic Mn/Cr molecular wheel complex has been synthesized using zerovalent manganese, Reineckes salt, ammonium thiocyanate and triethanolamine (H(3)tea) as starting materials. The compound [Mn3Cr4(NCS)(6)(Htea)(6)] (1) has been characterized in terms of its electrochemical, IR and EPR spectroscopic as well as its magnetic properties. The magnetic susceptibility and magnetization data were treated simultaneously during the optimization routine and resulted in J(Mn-Cr) = + 0.43 cm(-1), J(Cr-Cr) = -4.75 cm(-1), J(Mn-Mn) = +1.78 cm(-1), g(eff) = 1.878 with the ground state S = 15/2.

• 出版日期2010