Thio derivatives of β-Diketones and their metal chelates. III. Metal chelates of some fluorinated Monothio-β-diketones

Abstract

Metal chelates of 1,1,1-trifluoro-4-mercapto-4-(2-thienyl)but-3-en-2 one, C₄H₃SC(SH)=CHCOCF₃ (TTMBH), and 1,1,1-trifluoro-4-mercaptopent-3-en-2-one, MeC(SH)=CHCOCF₃ (TMPH) have been prepared. Inner complexes of both TTMBH and TMPH were obtained with cobalt(III), nicke1(II), palladium(11), platinum(II), zinc(II), cadmium(11), mercury(11), and lead(II); they are readily soluble in organic solvents. TTMBH gives the spin-free complex Fe(TTMB)₃, the copper(II) complex Cu(TTMB)₂, and the μ-dioxo-bridgedvanadium(1V) compound V₂O₂(TTMB)₄. Iron(III) and copper(II) oxidize TMPH to the disulphide (TMP)₂; however, a polymeric copper(I) complex Cu(TMP) was isolated. The complexing ability of TMPH appears to be weaker than that of TTNBH.