International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 5 6 2015 June 18 Synthesis, Characterization and Antioxidant studies of Cd(II), Hg(II) and Pb(II) Complexes of some Synthetic curcuminoids 40 45 EN Chauhan Sumedha 1 Yadav S.S. 2 HaddadBatool S. 1 Department of chemistry, college of Science, University of Basrah, Basrah, IRAQ MajeedNisreen N. 2 Al-RubaieAli Z. 3 Joshi Varsha 1 Department of Chemistry, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar 263145, Uttarakhand, INDIA Srivastava Anjana 2 Department of Soil Science, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar 263145, Uttarakhand, INDIA Pankaj 3 Department of Microbiology, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar 263145, Uttarakhand, INDIA Sharma Anita 4 SrivastavaPrakash 5 Chandra Prakash 6 Clara JeyageethaJ 1 Department of Chemistry, A.P.C Mahalaxmi College for Women, Tuticorin-628 002, Tamil Nadu, INDIA Kumar SugirthaP. 2 Department of Chemistry, Women’s Christian College, Nagercoil-629 001, Tamil Nadu, INDIA Verma Megha 1 Department of Environmental Science, G. B. Pant University of Agriculture and Technology, Pantnagar, 263145, INDIA Sati Meenakshi 2 Rai J.P.N. 3 Ghorpade V.S. 1 Post-Graduate Dept. of Chemistry, Nowrosjee Wadia College, Pune 411001, INDIA Borkar V.T. 2 Bhosale P.R. 3 Dangat V.T. 4 Praharaj ManojKumar 1 Dept. of Physics, ABIT, CDA, Sector-1, Cuttack, India Mishra Sarmistha 2 Pallikkavil R 1 Department of Chemistry, University of Calicut, Thenhipalam, Kerala, INDIA Ummathur M.B 2 PG Department of Chemistry, KAHM Unity Women’s College, Manjeri, Kerala, INDIA Krishnankutty K 3 > Research Paper 2015 5 23 2015 June 18 Cd (II), Hg (II) and Pb (II) complexes of two synthetic curcuminoid analogues derived from pentane-2,4-dione and aromatic aldehydes (furfural and naphthalene-2-carbaldehyde) have been synthesized and characterized by analytical and spectral data. In all the chelates, ligands behaved as monobasic bidentate where the hydrogen bonded enolic proton is substituted by the metal ion. Antioxidant studies of four synthetic curcuminoids (derived from benzaldehyde, cinnamaldehyde, furfural and naphthalene-2-carbaldehyde) revealed that all the ligands possess significant antioxidant activities. Maximum activity was observed with 2-naphthyl curcumin. Metal complexation enhanced the antioxidant activity of all the compounds and among these Hg(II) complexes showed highest activity. Copyright@ International Science Community Association