G. Zhao et al., SYNTHESIS AND CHARACTERIZATION OF ORGANOMETALLIC THIO-SCHIFF BASES AND THEIR COPPER(II) CHELATES, Transition metal chemistry, 19(6), 1994, pp. 567-570
Four organometallic thio-Schiff base ligands derived from ferrocene of
general formula C(5)H(5)FeC(5)H(4)CR = NNHCSSR' (R = H or Me, R' = Me
or CH,Ph) (HL), and their copper(II) chelates [CuL(2)] and [Cu(HL)(2)
]Cl-2, were prepared and characterized by physicochemical and spectros
copic methods. The thio-Schiff bases act as bidentate ligands and coor
dinate to copper(II) in the enolic form in EtOH and in the keto form i
n THF.