Browsing by Author "Uzoukwu, B.A."
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Item 1-phenyl-3-methyl-4-trifluoroacetyl-pyrazolone-5 (HPMTFP) as an extraction and spectrophotometric reagent for Vanadium (v)(National Science Council:Colombo, 1993) Uzoukwu, B.A.; Oforgi, P.Item 1-phenyl-3-methyl-4-trifluoroacetyl-pyrazolone-5 as an extraction and spectrophotometric reagent for Fe(iii)(National Science Council:Colombo, 1993) Uzoukwu, B.A.; Jack, B.Item Spectroscopic studies of Th(IV), La(III) and Pb(II) complexes of 4-trifluoroacetyl and 4-trichloroacetyl derivatives of 3-methyl-1-phenylpyrazol-5-one(National Science Council of Sri Lanka:Colombo, 1996) Uzoukwu, B.A.; Adiukwu, P.U.Item Synthesis and spectroscopic studies of 4-adipoyl-bis (1-phenyl-3- methyl-pyrazolone-5) as a bis-(1,3-diketone)(NSF:Colombo, 1998) Uzoukwu, B.A.; Duddeck, H.; Okeke, S.I.4-Adipoylbis(1-pheny-3-methylpyrazolone-5)has been synthesised and Characterised spectroscopically using UV,IR,NMR and mass spectroscopy.The Compound was synthesised through a condensation reaction between pyrazolone and adipoyl chloride.The spectral data showed that the compound existed as a bis (1,3-diketonene).Assignments of the IR,NMR,and mass spectral results are reported.