M.Jayandran et al./ Elixir Ultrasonics 46 (2012) 8268-8272 8268 Introduction The modern technique of the present studies, namely ultrasonic technique of adiabatic compressibility study have become a powerful tool for studying the molecular behavior of liquid mixtures [1-3] . This is because of its ability of characterizing physic-chemical behavior of liquid medium [4,5] .The measurement of the ultrasonic velocity have been adequately employed in understanding the molecular interactions in the liquid mixtures. Molecular interaction studies can be carried out by spectroscopic [6-8] and non-spectroscopic [9, 10] techniques. However, ultrasonic velocity [11, 12] measurements have been widely used in the field of interactions and spectral aspect evaluation studies [13-16] . In this present investigation the electrochemical behavior of Cu(II),Ni(II) , Zn(II) and Pb(II) complexes of 4-Amino-3, 6-Bis [[4-[[4-Chloro-6-[(3- Sulfophenyl) Amino]-1,3,5-Triazin-2-Yl]Amino]-2- Sulfophenyl]Azo]-5-Hydroxy-2,7-Naphthalenedisulfonic acid hexasodium compound were investigated. Recently the present electrochemical studies of this complexes work have never been reported else were. Experimental The ultrasonic velocity has been measured at 303 K using a crystal interferometer with a high degree of accuracy operating at a frequency of 2 MHz the density were measured at 303 K using specific gravity bottle by the standard procedure. The electrochemical measurements were performed with a Princeton Applied Research model -173 potentiostat, a universal programmer model were175 and an X-Y recorder, Model RE 0074. One compartment electrochemical cell were equipped with a glassy carbon disc working electrode, a platinum plate as counter electrode and a reference electrode of calomel wire. All measurements were carried out in dimethylsulfoxide (DMSO) with 0.1 M tetrabutylammonium per chlorate (TBAP) as supporting electrolyte. The solutions were carefully degassed and argon bubbling was stopped during measurements to ensure semi-infinite linear diffusion conditions. As shown in the (Fig.2) the complex shows that the oxidation and reduction of Cu (II) in the complex are characterized by a well defined redox peaks at -0.75 V (anodic) and -0.65 V (cathodic) vs. SCE that remained stable after the cycle. This process is usually assumed to be a single-electron reduction/oxidation of the couple Ni 3+/ Ni 2+ // Ni 2+ /Ni 3+ in the metallic center of the complex. Results and Discussion The electrochemical behavior of the Cu(II),Ni(II) , Zn(II) and Pb(II) complexes of 4-Amino-3, 6-Bis [[4-[[4-Chloro-6-[(3- Sulfophenyl) Amino]-1,3,5-Triazin-2-Yl]Amino]-2- Sulfophenyl]Azo]-5-Hydroxy-2,7-Naphthalenedisulfonic acid hexasodium compound studied using cyclic voltammetry at a scan rate of the 0.1V/S after deaerating 10 -3 M solution of the complexes in DMSO with tetrabutylammonium per chlorate (TBAP) as a supporting electrolyte. Fig.1. Cyclic voltammogram of Zn (II) complex of 4- Amino-3, 6-Bis [[4-[[4-Chloro-6-[(3-Sulfophenyl) Amino]-1, 3, 5-Triazin-2-Yl] Amino]-2-Sulfophenyl] Azo]-5-Hydroxy- 2,7-Naphthalenedisulfonic acid hexasodium compound Elixir Ultrasonics 46 (2012) 8268-8272 Electrochemical studies of Marine Dyes with some Cu (ii), Ni (ii), Zn(ii) and Pb (ii) metal complexes of 4-amino-3, 6-bis [[4-[[4-chloro-6-[(3-Sulfophenyl) Amino]-1,3,5-Triazin-2-yl]Amino]-2-Sulfophenyl]Azo]-5-hydroxy-2,7- Naphthalenedisulfonic acid hexasodium compound M.Jayandran 1 , B.Anand 1 and V.Balasubramanian 2 1 Department of Chemistry, Mahendra Engineering College, Namakkal-637 503, India. 2 Department of Chemistry, AMET University, Chennai -603112, India. ABSTRACT The cyclic voltammetric measurement and molecular interaction studies using ultrasonic technique of Cu(II),Ni(II), Zn(II) and Pb(II) complexes of 4-Amino-3, 6-Bis [[4-[[4-Chloro- 6-[(3-Sulfophenyl) Amino]-1,3,5-Triazin-2-Yl]Amino]-2-Sulfophenyl]Azo]-5-Hydroxy-2,7- Naphthalenedisulfonic acid hexasodium compound using DMSO, have been studied at 303 K. The cyclic voltammetric were carried out using a stationary platinum electrode in DMSO with 0.1M tetrabutylammonium per chlorate (TBAP) as a supporting electrolyte. The measured values of ultrasonic velocity, density, acoustical parameters, adiabatic compressibility and free length are evaluated. From these properties the parameters have been studied the nature and strength of the interactions in these complexes and oxidation, reduction behaviors were discussed. © 2012 Elixir All rights reserved. Ultrasonics ARTICLE INFO Article history: Received: 23 February 2012; Received in revised form: 15 April 2012; Accepted: 9 May 2012; Keywords Cyclic voltammetric technique, Ultrasonic technique, Acoustical parameters and dyes with Metal-coordination. Available online at www.elixirjournal.org Tele: E-mail addresses: jayandranchem@gmail.com © 2012 Elixir All rights reserved