NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.47 [2009] >
IJPAP Vol.47(02) [February 2009] >


Title: Determination of stability constants of charge transfer complexes of iodine monochloride and certain ethers in solution at 303 K by ultrasonic method
Authors: Kannappan, V
Ali, S J Askar
Mahaboob, P A Abdul
Keywords: Ultrasonic velocity
Formation constants
Donor-acceptor complexes
Iodine monochloride
Ethers
Issue Date: Feb-2009
Publisher: CSIR
Abstract: Ultrasonic velocities (U), densities (ρ), and coefficient of viscosities (η) have been measured for solutions containing iodine monochloride (ICl) and one of the following ethers in the equimolar concentration in the range 0.001-0.01M at 303 K. Diphenyl ether, 4-chloroanisole, anisole and 1,4-dioxane are used as donors. Dichloromethane, chloroform, carbon tetrachloride and n-hexane have been used as solvents. Acoustical parameters such as adiabatic compressibility (β), absorption coefficient (⍺/f²), internal pressure (πi) and cohesive energy (CE) values are calculated from the measured values of U, ρ and η. The trend in the acoustical parameters establishes the formation of charge transfer complexes between iodine monochloride (acceptor) and ethers (donors). The stability constants (K) are calculated for these complexes. The free energy changes (ΔG) for the formation of these complexes are also calculated from K values. Attempt has been made to correlate the formation constants with polarizability, dielectric strength and dipole moment of the donor and solvent molecules. The free energy of activation (ΔG#) and viscous relaxation time () are found to be almost constant for these complexes indicating the formation of similar charge transfer complexes in these systems.
Page(s): 97-102
ISSN: 0019-5596
Source:IJPAP Vol.47(02) [February 2009]

Files in This Item:

File Description SizeFormat
IJPAP 47(2) 97-102.pdf168.14 kBAdobe PDFView/Open
 Current Page Visits: 587 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 623713 since 06-Feb-2009  Last updated on 13-Nov-2014Webmaster: nopr@niscair.res.in