S. D. Thakur, Shalini Singh, G. H. Kurhade
Feb 1, 2020
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Journal of emerging technologies and innovative research
Abstract
Thiazine is six membered heterocyclic ring containing Nitrogen and Sulhpur placed at 1, 3 position. In present investigation complex formation between thiazine and solvant are studied by evaluating certain acoustic parameter.The Complex formation in binary liquid mixtures of 1-4 dioxane and water with 4-(2-hydroxy phenyl)-5 benzoyl-6-(4-methoxyphenyl)-2-imino-6H-2,3-dihydro-1,3 thiazine L2 , 4-(2-hydroxy phenyl)-5 benzoyl-6-(2-furyl)-2-imino-6H-2,3-dihydro-1,3 thiazine L3, 4-(2-hydroxy -5methyl phenyl)-5 benzoyl-6-(4-methoxyphenyl)-2-imino-6H-2,3-dihydro-1,3 thiazine L5 has been studied by measuring ultrasonic velocity at 2 MHz, by using in the concentration range of 0.01 M at 32 C the parameters under investigation are ultrasonic velocity (u), adiabatic compressibility (βs), intermolecular free length,(Lf) Apparent molal volume(Фv), Apparent molal Compressibility(Фk ), specific acoustic impedance(Z) and Relative association(RA ) These parameters have been utilized to study the solute–solute interactions in these systems. The ultrasonic velocity shows a decrease in value with respect to concentraction and adiabatic compressibility show corresponding increase in value with respect to concentraction for these ligands . The results indicate the occurrence of complex formation between unlike molecules through intermolecular hydrogen bonding between oxygen atom of dioxane molecule and hydrogen atom of ligands . The variation of these parameters with percentage indicates the possibility of the complex formation in these systems. Index Terms Acoustical impedance, Dioxane-water mixtures, thiazine. INTRODUCTION Ultrasonic is the branch of acoustic, which consists of waves of high frequencies.Ultrasonic study has wide range of application in agriculture, material science, medicine, biology, industry,oceanography, sonochemistry research as it have a non-destructive nature. This technique is used for the study of molecular interaction in liquids. 2-5 .It is also useful to study the ion-solvent interactions in aqueous and non aqueous solutions . Recent developments have made it possible to use ultrasonic energy in medicine, engineering, agriculture and other industrial applications . In solution of ionic solute the attraction between the solute and solvent is essentially of ion-dipole interaction depends mainly on ion size and polarity of the solvent . The measurements of ultrasonic waves are useful in study of molecular interactions in liquids which provides valuable information regarding internal structure, complex formation, internal pressure and molecular association . The dissolution of electrolyte in a solvent causes a volume contraction due to interaction between ions and solvent molecules and this may influence other acoustical properties of solution. In recent years, the studies of acoustical properties of aqueous mixed electrolytic solutions 11 have been found to be useful in understanding the specific ion-ion and ion-solvent interaction in solutions. The strength of ion-dipole attraction is directly proportional to the size of the ion, charge and the magnitude of the dipole, but inversely proportional to the distance between the ion and the dipolar molecule.The accurate measurement of density, viscosity, ultrasonic velocity and hence the derived parameters such as adiabatic compressibility, apparent molal compressibility and apparent molal volume will give significant information regarding the state of affairs in a solution . I. RESEARCH METHODOLOGY The 1,3 substituted thiazine are synthesized by amination of chalcone with substituted amines ,this chalcone are synthesized by using general claisen Schmidt method . For evaluating the acoustic properties the very pure and analytical grade solvent (1-4 Dioxane )and extra pure double distilled water is used.The dencities of pure solvent and solutions are determined by using specific gravity bottle. The ultrasonic velocity measurements were made using a crystal controlled variable path ultrasonic interferometer (Mittal Enterprise, Model F-05) of 2MHz with accuracy of (±) 0.03 % © 2020 JETIR February 2020 , Volume 7, Issue 2 www.jetir.org (ISSN-2349-5162) JETIRDI06021 Journal of Emerging Technologies and Innovative Research (JETIR) www.jetir.org 107 The ligands used for study are 1] 4-(2-hydroxy phenyl)-5 benzoyl-6-(4-methoxyphenyl)-2-imino-6H-2,3-dihydro-1,3 thiazine L2 2] 4-(2-hydroxy phenyl)-5 benzoyl-6-(2-furyl)-2-imino-6H-2,3-dihydro-1,3 thiazine L3 3] 4-(2-hydroxy -5-methyl phenyl)-5 benzoyl-6-(4-methoxyphenyl)-2-imino-6H-2,3-dihydro-1,3 thiazine