Vd. Kelkar et Rr. Gokhale, SYNTHESIS AND CHARACTERIZATION OF CHROMIUM(III) CHELATES OF SOME LAWSONES, Polish Journal of Chemistry, 72(4), 1998, pp. 655-659
Chelates of chromium(III) with phthiocol (3-methyllawsone), lawsone (2
-hydroxy-1,4-naphthalenedione), 3-chlorolawsone and their 1-oxime deri
vatives have been syn thesized and characterized. They exhibit the gen
eral formula CrL3 . 3H(2)O and magnetic moments close to 3.87 B.M. ind
icating trivalent chromium. IR spectral data suggest that lawsone deri
vatives exhibit coordinating OO system, while lawsone-1-oxime derivati
ves present NO system. Octahedral geometry for chelates has been sugge
sted.