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Titanyl (IV), Zirconyl (IV), Hafnyl (IV) and Uranyl (VI) Complexes of Terdentate Benzoyl Hydrazones

S. K. Dua ; Department of Chemistry, Meerut College, Meerut-250001, India
V. Kapur ; Department of Chemistry, Meerut College, Meerut-250001, India
S. K. Sahni ; Deprtment of Chemistry, University of Delhi, Delhi-110007, India

Sažetak

Titanyl(IV), zixconyl(!V), hafnyl(IV) and uranyl(Vl) oomplexes
of beniz'Dyl hydrazones derti.ved frnm benzoyl hymazdne
and sal1cyla1dehyde (BSH), o-hydro!XY acetopheilOllle (BAH),
o-hydroxy propi0tphenone (BPH) and 2-hydroxy-1-naphthaldehyde
(BNH) are desc·ribed. These complexes were characterised
on the basis oof elemental analyses, electrical conductance and
spectral (IR, UV and visible) data. The tiltany1'(!V) complexes
having ·the formula [TiL(OH) (H20) lzO appear ·to have a seven-
coordinat·e geometry, the zirconyl and hafnyl complexes,
[ML(OHh(H20) )4 (M = Zr or HO appear to possess tetrameric
structure in which each metal atom is e.ight-coordina:ted as in
the origin,aJl salt, MOCh.8H20 (M = Zr or Hf) ; whereas uranyl
comple·xes [UO:J.;(H20hh are dimeric having phenoxide brlidges,
•tiu/°'u•ti
as revealed by the '-o,, r:in:g v~br.ations in the IR
spectra at ca. 845 cm-1, wi.th each metal atom having an eightcoordinated
structure. In all these complexes the benzoyl hydrazones
act as di!ba:sic te1r.dentate (N, o-. o-> chelating agentJs.

Ključne riječi

Hrčak ID:

194175

URI

https://hrcak.srce.hr/194175

Datum izdavanja:

15.2.1984.

Posjeta: 712 *