Synthesis and Characterisation of Cobalt (II) and Nickel (II) Tetrathiocyanato Dithallate (I) Complex With Hydrazides and Hydrazone

V. P. Singh and Jyoti Singh

Department of Medical Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi - 221 005, India.

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ABSTRACT:

M [Tl(SCN) ₂]₂ type of complexes with Co(ll), Ni(Il). (Where as M = Co(ll), Ni(ll). L = Oxai di hyorazide (ODH), Phthalyl di hydrazide (PDH). Disaiicylaldimmeoxamide (H A) Disalicylaidimineophthalamide (H₄ B). Salicylalhydrazone (SH). They are either coordinated through C=C and -NH₂ groups of the hydrazines or C=0 and C=N of hydrazone ligands .The electronic and IR spectra suggest that in nickel (II) complexes shows pseudo octaheoral environment around Ni(ll) and Co(ll) complexes show tetragonally distorted octahedral environment around Co (II).

KEYWORDS:

Hyorazide; Disalicylaidimineophthalamide; Salicylalhydrazone