Download Tag: THE INFRARED STRETCHING FREQUENCIES OF SOME


THE EFFECT OF 4-ACYL SUBSTITUENTS ON THE INFRARED STRETCHING FREQUENCIES OF SOME 1-PHENYL -3- METHYL -4- ACYLPYRAZOL -5-ONES AND THEIR MAGNESIUM (II) ,COBALT(II) COPPER (II) AND ZINC (II) CHELATES

ABSTRACT The  divalent metal chelates of  Mg,Co,Cu and Zn  with 4-acetyl (hpmap), 4- benzoyl(hpmbp),4-butyryl(hpmbup),4-capyroyl(hpmcp),4-propiony (hpmprp)   and   4-palmitoyl(hpmpp)   derivatives   of   1-phenyl   -3-methyl pyrazol-5-one have been  synthesized  and characterized by  UV ,IR,    and conductivity  measurements.  It  is  shown  that  the  ligands  behaved  like bidentate enols, all forming neutral chelates  with  the  metal ions , bonding through oxygen of the enolic hydroxyl group and  /or the  oxygen  atom of the carbonyl group of ...

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