Get access

Facile Preparation of Paramagnetic RuIII and OsIII Hexacyanides

Authors


Abstract

Diamagnetic K4[M(CN)6], M = RuII, OsII are easily and quantitatively transformed into paramagnetic [M(CN)6]3– in methanol with the help of crown ethers. Hexacyanoosmate(II) is oxidized by air, whereas for hexacyanoruthenate(II), H2O2 is needed. These two cyanometallates, (K@18-crown-6)3[M(CN)6]·nSolv, were characterized both in solution and in the solid state. The compounds were obtained as single crystals, and their crystal and molecular structures were determined by X-ray diffraction analysis. In the proposed synthetic method, the use of methanol minimizes hydrolysis and considerably increases the yield and purity.

Get access to the full text of this article

Ancillary