SYNTHESIS AND CHARACTERIZATION OF MALONIC ACID DIHYDRAZIDE AND ITS METAL COMPLEXES

Autor:	Ramana Kumar Kakarla, Raghavendra Guru Prasad Aluru, Srilalitha Vinnakota, Ravindranath Lakshmana Rao Krishna Rao
Rok vydání:	2013
Předmět:	Metal chemistry.chemical_compound Multidisciplinary chemistry visual_art Polymer chemistry visual_art.visual_art_medium General Chemistry Pharmacy Malonic acid Education Characterization (materials science)
Zdroj:	Periódico Tchê Química. 12:26-33
ISSN:	2179-0302 1806-0374
DOI:	10.52571/ptq.v11.n20-21.2013.26_periodico20e21_pgs_26_33.pdf
Popis:	A new series of complexes was synthesized by the reaction between malonyl dihydrazide (MAH) and manganese, copper, nickel, zinc, cadmium, cobalt and ferric salts in methanolic medium. The complexes were characterized by elemental analysis, molar conductance measurements, electronic, IR and 1H NMR spectral studies. Based on the results obtained, the stoichiometry of Fe(III)-MAH and Co(III)-MAH was proposed to be 1:3 and that for Cu(II)-MAH, Cd(II)-MAH, Zn(II)-MAH, Mn(II)-MAH, Ni(II)-MAH was proposed to be 1:2 (M:L). It was suggested that the nitrogen present in the azomethine (>C=N-) group of the enolic form present in the ligand was involved in the formation of complexes. A clear picturisation indicating the bonding sites were depicted for each complex. The metal complexes exhibit different geometries such as tetrahedral, square planar and octahedral arrangements.
Databáze:	OpenAIRE
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