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TITLE
DECLARATION
CERTIFICATE
ACKNOWLEDGEMENT
CONTENTS
1 PORPHYRINS AND METALLOPORPHYRINS
1.1 Introduction
1.2 Porphyrin system
1.3 Electronic properties of porphyrins and metalloporphyrins
1.4. Types of porphyrins
(a) Protoporphyrin
b) Deuteroporphyrin
(c) Hematoporphyrin
(d) Mesoporphyrin
(e) Diacetyldtwteroporphyrin
(f) Diformyldenteroporphyrin
(g) Porphyrin C
1.5. Porphyrins in life chemistry
1.5.1. Hemoglobin and mioglobin
1.5.2. Chlorophyll
1.5.3. Enzymes
1.5.3.1 Oxygenases
1.5.3.2. Peroxidases and Catalase
1.5.4. The Cytochromes
1.6. Applications of porphyrins and metalloporphyrins
1.7. References
2 STUDIES ON PORPHYRIN AGGREGATES
2.1. Introduction
2.2. Aggregation of porphyrin type natural as well as their model systems
2.3. Aggregation of porphyrins in solution
2.4. Dimerization versus aggregation
2.5. Application of porphyrin aggregates
2.6. Outline of the present work
2.7. References
3 SYNTHESIS AND CHARACTERIZATION OF HIGHER ORDER AGGREGATED PORPHYRIN SYSTEMS
3.1. Introduction
3.2. Experimental
3.2.1. Preparative details
3.2.1.1. Porphyrins and metalloporphyrins
3.2.1.2. Aggregated anionic and cationic porphyrin systems
3.2.1.3. PVC incorporated MTPyP systems
3.2.2. Physical measurements
3.3. Results and discussion
3.3.1. Characterization of monomeric and aggregated porphyrin systems
3.3.2. Electronic spectra of aggregated porphyries
3.3.3. Origin of electronic modulation in aggregated systems
3.3.4. Electronic spectra of PVC-MTPyP systems
3.3.5. EPR spectra
3.4. References
4 SYNTHESIS AND CHARACTERIZATION OF COVALENTLY LINKED DIPORPHYRINS
4.1. Introduction
4.2. Experimental
4.2.1. Preparative details
4.2.1.1. Porphyrins and metalloporphyrins
4.2.1.2. Synthesis of covalently linked free-base diporphyrins
4.2.1.3. Synthesis of covalently linked zinc diporphyrins
4.2.1.4. Synthesis of covalently linked copper diporphyrins
4.2.2. Physical measurements
4.3. Results and discussion
4.3.1. NMR spectra
4.3.2. Electronic spectra
4.3.3. Fluorescent measurements
4.3.4. EPR spectra
4.4. References
5 THERMAL CHARACTERISTICS OF METALLOPORPHYRINS
5.1. Introduction
5.1.1. Phenomenological aspects
5.1.2. Kinetic aspects
5.1.3. Mechanistic studies
5.1.3.1. Process governed by nucleation and growth
5.1.3.2. Diffusion controlled reactions
5.1.3.3. Phase boundary reactions
5.2. Experimental
5.3. Results and discussion
5.3.1. Phenomenological aspects
5.3.2. Kinetic aspect
5.3.3. Mechanistic aspect
5.4. References
6 SUMMARY AND CONCLUSION