catena-Poly[[tris(acetonitrile-κN)praseodymium(III)]tris(μ-trifluoromethanesulfonato-κ2O:O′)]

In the colourless title compound, [Pr(CF3O3S)3(CH3CN)3]n, the three trifluoromethanesulfonate anions form three bridges via O:O′-coordination between two PrIII atoms. The structure contains [Pr(NCMe)3-μ2(OTf)3—Pr(NCMe)3-μ2(OTf)3]n (NCMe is acetonitrile; OTf is trifluoromethanesulfonate) chains parallel to the a axis. The PrIII atom is nine-coordinate in a distorted tricapped trigonal-prismatic environment.