
%0 Journal Article
%A Livingstone, SE 
%A Oluka, JE 
%T Thio derivatives of &#946;-diketones and their metal chelates. XXIV. Dipole moments and mass spectra of chromium(III) chelates of some monothio-&#946;-diketones
%J Australian Journal of Chemistry
%D 1976/09/01
%V 29
%N 9
%P 1913-1917
%K 
%R https://doi.org/10.1071/CH9761913
%U https://www.publish.csiro.au/paper/CH9761913 
%X Chromium(111) chelates of four monothio-&#946;-diketones, RC(SH)=CHCOR? (R = R' = Ph; R = Ph, 2-thienyl, &#946;-naphthyl, R' = CF3), have been prepared by the reaction of chromium(111) chloride hexahydrate with the monothio-&#946;-diketone in alcohol in the presence of urea. The dipole moments of the chromium chelates were determined by static polarization measurements in benzene solution and indicate a facial-octahedral configuration. The mass spectrum of CrL3 (L = PhC(S)=CHCOPh) shows no metal-containing peaks but exhibits metal-free peaks due to the ions 2L-H2S, 2L - H2S- Ph, 2L- H2S - PhCO and 2L- H2S - PhCO - Ph. The mass spectra of the other three chromium chelates display a considerable number of peaks due to metal-containing ions, including M and M - L. The difference in these spectra from those of their cobalt(111), rhodium(111), iron(111) and ruthenium(111) analogues is discussed. 
