Key Features:

No of Pages: 51
No of Chapters: 5

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Abstract:

The mixed ligand complex of Cobalt(II) and Iron(II) derived from 2-[(Z)-(2-hydroxybenzylidene) amino]phenol and 1-{(2E)-2-[(Z)-(2-hydroxyphenyl)imino]ethyl}-2-naphthol was synthesized and characterized based on the 1HNMR spectral studies and elemental analysis. The results of elemental analyses indicate a 1:1:1 stoichiometry of the ligands and the metal in the respective complexes. The 1HNMR spectra indicate the deprotonation of one of the two hydroxyl groups on each ligand to form a mixed ligand complex with the metal ions.

Keywords: Mixed ligands, 1HNMR, Complex, Salicylaldehyde, 2-Hydroxy-1-naphthaldehyde, Schiff base.

Table of Content:

Page

TITLE PAGE- - - - - - - - - - - i

CERTIFICATION - - - - - - - - - - ii

DEDICATION - - - - - - - - - - iii

ACKNOWLEDGEMENTS- - - - - - - - - iv

ABSTRACT- - - - - - - - - - - v

TABLE OF CONTENTS- - - - - - - - - vi

LIST OF TABLES- - - - - - - - - - ix

LIST OF FIGURES- - - - - - - - - - x



CHAPTER ONE

1.0 INTRODUCTION- - - - - - - - 1

1.1 Complexes- - - - - - - - - 2

1.1.1 Tetrahedral complexes- - - - - - - - - 2

1.1.2 Octahedral complexes- - - - - - - - - 3

1.2 Ligands- - - - - - - - - - 3

1.2.1 2-Hydroxy-1-naphthaldehyde derivatives- - - - - 4

1.2.2 Salicylaldehyde derivatives- - - - - - - - 4

1.3 Complexes of iron- - - - - - - - - 5

1.4 Complexes of cobalt- - - - - - - - - 6

1.5 Nuclear magnetic resonance (NMR) spectrometry- - - - - 7

1.6 Elemental analysis- - - - - - - - - 8

1.7 Aim and objectives of this research- - - - - - - 8

1.7.1 Aim of this research- - - - - - - - - 8

1.7.2 Objectives of this research- - - - - - - 8





CHAPTER TWO

2.0 LITERATURE REVIEW- - - - - - - - 10

CHAPTER THREE

3.0 MATERIALS AND METHODS- - - - - - - 17

3.1 Materials- - - - - - - - - - 17

3.1.1 Apparatus- - - - - - - - - - 17

3.1.2 Regents- - - - - - - - - - 17

3.2 Methods- - - - - - - - - - 17

3.2.1 Synthesis of 2-[(Z)-(2-hydroxybenzylidene) amino] phenol- - - - 17

3.2.2 Synthesis of 1-{(2E)-2-[(Z)-(2-hydroxyphenyl) imino] ethyl}-2-naphthol- - 18

3.2.3 Synthesis of the metal complex HBAP and HPEN- - - - - 18

3.6 Solubility test- - - - - - - - - - 19

3.7 Melting point determination- - - - - - - - 19

3.8 Proton NMR analyses- - - - - - - - - 19

3.9 Elemental analysis- - - - - - - - - 20

CHAPTER FOUR

4.0 RESULTS AND DISCUSSION- - - - - - - 21

4.1 Synthesis of the Schiff bases and metal complexes- - - - - 21

4.1 Physical properties of the Schiff bases and complexes- - - - - 22

4.2 Elemental analysis - - - - - - - - - 24

4.3 Proton NMR spectra of the Schiff bases and complexes- - - - 24

CHAPTER FIVE

5.0 CONCLUSION AND RECOMMENDATIONS - - - - 31