Synthesis, characterisation and X-ray structure of an azido adduct of a tridentate (NNO) Schiff base nickel(II) complex

Abstract

The tridentate Schiff base 1-(N-salicylideneimino)-2-(N,N-diethyl-aminoethane (HL), derived from the condensation of salicylaldehyde with N,N-diethylethylenediamine, reacted with nickel(II) nitrate and azide to give a mononuclear complex of formula [Ni(L)(N₃)], where HL = Et₂N(CH₂)₂NCHC₆H₄(OH). The complex was characterized by spectroscopic and X-ray crystallographic methods. Coordination around nickel(II) is square planar. The molecular and supramolecular structure of the complex is discussed.

Keywords:

• Nickel(II)
• Azide
• Tridentate Schiff base
• Synthesis
• Crystal structure

Acknowledgements

The work was financially supported by the University Grants Commission, New Delhi, by grant F.12-9/2002(SR-I) to SK. We are grateful to RSIC, CDRI, Lucknow for elemental analyses.