Publisher: Bachudo Science Co. Ltd

Syntheses and Spectroscopic Properties of Mercury(II) and Nickel(II) Complexes of Bis(N-PHENYL THIOUREA)

N. T. Akinchan, P. M. Drozdzewski
KEYWORDS: Key Words: Bis(N-phenylthiourea), mercury(II) complex, nlckel(II) complex. IR, 1 H NMR, electronic spectra.

ABSTRACT:

ABSTRACTMercury(II) complex, [Hg2(BPTU-2H)Cl2] and nickel(II) complex, [Nl(BPTU·H)2] were prepared byreacting Bis(N-phenylthiourea), BPTU, with mercury(II) chloride and nlckel(II) acetate respectively. The complexes were characterized by IR, diffuse reflectance, 1 H NMR spectra and elemental analysis. BPTU acts as monoanionic bidentate chelating agent in nickel(II) complex, coordlnating through thiolato sulphur and hydrazinic nitrogen atoms. Its coordination nature differs in mercury(II) complex, where it a.cts as dianionic bis(bidentiate) chelating agent, coordinating through thlolato sulphur and hydrazinic nitrogen atoms to two mercury(II) ions simultaneously. On the basis of analysis and spectral properties, Nt(BPTU­-H)2 has been tentatively assigned square planar geometry. The [Hg2(BPTU -2H)Cl2] appears to have binuclear structure having triangular coordination centres around mercury(II) cations.


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