Synthesis and conductance study of ammonium and metal ion complexes with several crown ethers in acetonitrile
Other Title(s)
تحضير مركبات جديدة من ثياداميدودايبنزوالااثيرات التاجية و دراسة الايصالية الكهربائية لمعقدات بعض مركبات الاثير التاجية مع أيون الامونيوم و بعض العناصر الانتقالية في مذيب الاسيتونيترايل
Dissertant
Thesis advisor
Comitee Members
Mazid, Shihadah Abd al-Rahman
al-Mahasinah, Ali Shakir
al-Umari, Hamzah Salih
University
Mutah University
Faculty
Faculty of Science
Department
Department of Chemistry
University Country
Jordan
Degree
Master
Degree Date
2008
English Abstract
Three new thiadiamidoerown ethers 19, 20, and 21 have been synthesized in a simple way and high yields.
These crown ethers were characterized by H-NMR, C-NMR and Mass spectrometry.
A Thermodynamic study of the complication of pb2+ and Ag+ ions with 19, Hg2+, pb2+ and Ag+ with 20, Ag+ with 21and pb2+ with both 22 and 23 in acetonitrile, has been carried out.
The study was conducted in the temperature range 288-308 K using a conduct metric technique in acetonitrile.
The observed molar conductivities, A, were found to decrease significantly for mole ratios [L] t / [M]t about unity.
A model involving 1:1 stoichiometry has been used to analyze the conductivity data.
The stability constant, K, for each 1:1 complex was determined from the conductivity data by using a nonlinear least squares curve fitting procedure.
The values of standard enthalpy change (AH0) and entropy change (AS°) for the complication reactions were evaluated from the slopes and intercepts of the van's Hoff plots respectively.
Standard Gibbs free energy change values (AG0) were calculated from the relationship AG° = AH0- T AS0.
The stability of the complexes of 19 and 20 are as follow : l-Ag+>pb2 + forl9.
2-Hg2 + >Ag + >pb2 + for20.
Main Subjects
Topics
No. of Pages
53
Table of Contents
Table of contents.
Abstract.
Chapter one : Introduction.
Chapter two : Results and discussion.
Chapter three : Experimental.
Chapter four : Summary and recommendation.
References.
American Psychological Association (APA)
al-Rubayhat, Muhammad Ratib. (2008). Synthesis and conductance study of ammonium and metal ion complexes with several crown ethers in acetonitrile. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-304520
Modern Language Association (MLA)
al-Rubayhat, Muhammad Ratib. Synthesis and conductance study of ammonium and metal ion complexes with several crown ethers in acetonitrile. (Master's theses Theses and Dissertations Master). Mutah University. (2008).
https://search.emarefa.net/detail/BIM-304520
American Medical Association (AMA)
al-Rubayhat, Muhammad Ratib. (2008). Synthesis and conductance study of ammonium and metal ion complexes with several crown ethers in acetonitrile. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-304520
Language
English
Data Type
Arab Theses
Record ID
BIM-304520
