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β-diketone complexes of manganese(II), cobalt(II), nickel(II) and palladium(II)

✍ Scribed by Fathy A. El-Saied; Monir M. Aly; Amal M. Anwar

Publisher
Springer
Year
1993
Tongue
English
Weight
304 KB
Volume
18
Category
Article
ISSN
0340-4285

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✦ Synopsis

The reactions of manganese(II), cobalt(II) and nickel(II) acetates (1 mole) with antipyrine-4-azo-fl-ethylcyanoacetate (HL 1) and antipyrine-4-azo-fl-acetylacetone (HL 2) (1 mole) produce complexes of the M(L)2 type. K2PdC14 (lmole) reacts with HL a and HL 2 (lmole) to yield complexes of the general formula PdLC1, the ligands behaving as monobasic tridentates. The electronic spectral and magnetic data show the complexes to be high-spin octahedral, whereas the palladium(II) complexes are diamagnetic square planar. The complexes were characterized by elemental analyses, conductance measurements and i.r. and electronic spectra as well as magnetic susceptibility measurements and thermal (t.g.a. and d.t.a.) analysis.

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