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Table of contents
CHAPTER I. Introduction
I. INTRODUCTION
II. PREPARATION OF WELL-DEFINED TANTALUM IMIDO AMIDO SURFACE ORGANOMETALLIC COMPLEX
II.1 The support
II.2 The preparation of well-defined tantalum imido amido complex
III. OVERVIEW OF CHAPTER I and OBJECTIVE OF MY THESIS
IV. REFERENCES
CHAPTER II. Activation of NH3 and H2: Mechanistic insight through bond activation reactions
I. INTRODUCTION
I.1 Introduction to ammonia and its properties
I.2 Activation of ammonia N-H bond
I.2.1. Ammonia Oxidative Addition by transition metal complexes:
I.2.2. Ammonia Oxidative addition “without transition metal complex”:
I.2.3. Ammonia activation by d0 transition metal complexes:
I.3 Mechanistic understanding of ammonia activation
I.4 Overview of chapter II
II. RESULTS and DISCUSSIONS
II. 1. Reaction of [(SiO)2Ta(=NH)(NH2)] with dihydrogen :
II. 2. Reaction of [(SiO)2Ta(=NH)(NH2)] with ammonia :
II.2.1 Spectroscopic studies of NH3 activation on [(SiO)2Ta(=NH)(NH2)], 2
II.2.2 Computational Studies of NH3 activation on cluster model 2q
II. 3. Mechanism of [(SiO)2TaHx (x: 1,3)] reaction with ammonia :
II.3.1 Spectroscopic studies of NH3 activation on [(SiO)2TaHx (x: 1,3)], 1
II.3.2 Computational Studies of NH3 activation on [(SiO)2TaHx (x: 1,3)], 1
III. CONCLUSION and PERSPECTIVES
IV. EXPERIMENTAL PART
V. REFERENCES
CHAPTER III. Mechanistic insight of dinitrogen activation reaction over silica supported tantalum hydrides
I. INTRODUCTION
I.1 Introduction to dinitrogen and its properties
I.2 Mechanistic understanding of dinitrogen activation
I.3 Overview of chapter III
II. RESULTS
II. 1 Reaction of [(SiO)2TaHx (x: 1, 3)] with dinitrogen
II.1.1 Reaction of [(SiO)2TaH1]enriched 1 with N2
II.1.2 Reaction of [(SiO)2TaHx (x: 1, 3)] with 15N2
II.1.3 Reaction of [(SiO)2TaDx (x: 1, 3)] with N2
II.2 Reaction of [(SiO)2TaHx (x: 1, 3)] with hydrazine
II.2.1 Reaction of [(SiO)2TaHx (x: 1, 3)] with N2H4
II.2.2 Reaction of [(SiO)2TaHx] with 15N2H4
II.3. Attempts to monitor reaction of [(SiO)2TaHx (x: 1, 3)] with diazene
III. DISCUSSION
IV. CONCLUSION and PERSPECTIVES
V. EXPERIMENTAL PART
VI. REFERENCES:
CHAPTER IV. Attempts to use well-defined silica supported tantalum imido amido complex for C-H activation reactions
I. INTRODUCTION
II. RESULTS and DISCUSSION
II.1. Reactivity of silica-supported [(SiO)2Ta(=NH)(NH2)] and [(SiO)2TaHx (x:1, 3)] complexes with alkynes:
II.2. Well-defined [(SiO)2Ta(=NH)(NH2)] complex in C-H activation reactions:
III. CONCLUSION and PERSPECTIVES
IV. EXPERIMENTAL PART
V. REFERENCES
CHAPTER V. General Conclusions
