Cu (II)-Red Onion Skin Extract-Azo metal Complex - A Potential for Oilfield Applications
A. A. Akaho *
World Bank Africa Centre of Excellence for Oilfield Chemicals Research, University of Port Harcourt, Nigeria.
U. J. Chukwu
Department of Pure and Industrial Chemistry, University of Port Harcourt, Nigeria.
O. Akaranta
World Bank Africa Centre of Excellence for Oilfield Chemicals Research, University of Port Harcourt, Nigeria and Department of Pure and Industrial Chemistry, University of Port Harcourt, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Red Onion skin extract (ROSE)- azo compound of 2-aminophenol and Cu (II) metal complex of the azo compound (Cu-APmROSE) were formed and characterized using FT-IR spectroscopy, UV-Visible absorption spectroscopy and Scanning electron microscopy. The IR Spectra showed the values of N=N- stretching frequency of 1512.24cm-1 at 1500 cm-1 in APmROSE. This stretching frequency is absent in the Cu-APmROSE. This is an indication of the involvement of the N=N- bond in coordination to the metal. APmROSE shows an absorption maximum at 512 nm. This band was shifted to 334 nm in Cu-APmROSE. This suggests an interaction between the Cu and the azo compound.
Keywords: 2-aminophenol, red onion skin extract, Cu-APmROSE, complex, diazotization