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  • TITLE
  • DEDICATION
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • contents
  • 1 Introduction
  • 1.1 Coordination polymers
  • 1.1.1 General Methods of Preparation
  • 1.1.2 Classification of Coordination Polymers
  • 1.1.2.1 Pendent metal groups
  • 1.1.2.2 Polymers cross-linked by metals
  • 1.1.2.3 Parquet polymers
  • 1.1.2.4 Polymers with backbone metals
  • 1.1.2.5 Stacked metal chain complexes
  • 1.1.2.6 Magnus green salt
  • 1.1.2.7 Polymetallocences
  • 1 1.2.8 Poly (yne) s
  • 1 1.2.9 Shiskabob polymers
  • 1.2 Properties of Coordination Polymers
  • 1.2.1 Molecular Ferromagnets
  • 1.2.2 Metallic and Superconducting Polymers
  • 1.2.3 Non Linear Optical Materials Ferroelectric Materials
  • 1.2.4 Ferroelectric Materials
  • References
  • 2 Scope and objectives
  • References
  • 3 Reagents and physico-chemical methods
  • 3.1 Reagents
  • 3.2 Preparative Details
  • 3.2.1 Preparation of 4, 4-azopyridine
  • 3.3 Elemental Analysis
  • 3.3.1 Estimation of Nickel
  • 3.3.2 Estimation of Cobalt
  • 3.3.3 Estimation of Vanadium
  • 3.3.4 Estimation of Carbon, Hydrogen and Nitrogen.
  • 3.4 Spectral Methods
  • 3.5 Coordination Chemistry of Cobalt
  • 3.6 Coordination Chemistry of Nickel.
  • 3.7 Magnetic Susceptibility Measurements
  • 3.8 Thermal Analysis
  • References
  • 4 Synthesis and Characterisation of Lewis-base adducts of Ni (II) and Co (II) complexes of 2-mercaptobenzothiazole
  • 4.1 Introduction
  • 4.2 Experimental
  • 4.2.1 Reagents Used-
  • 4.2.2 Preparative Details
  • 4.2.3 Analytical Methods
  • 4.3 Results and Discussion
  • 4.3.1 Four-coordinated Co (mbt) 2 and Ni (mbt) 2
  • 4.3.2 Lewis-Base Adducts of M (mbt) 2
  • 4.3.2.1 lnfra-red spectra
  • 4.3.2.2 Electronic spectra of Lewis-base adducts of Ni (mbt) 2
  • 4.3.2.3 Electronic spectra of Lewis-base adducts of Co (mbt) 2
  • 4.3.2.4 Magnetic susceptibility measurements
  • References
  • 5 Thermal decomposition features of 2-mercaptobenzothiazolate complexes of Ni (II) and Co (II) and their Lewis-base adducts
  • 5.1 Introduction
  • 5.2 Results and Discussion
  • 5.2.1 Phenomenological Aspects
  • 5.2.1.1 2-mercaptobenzothiazole (mbtH)
  • 5.2.1.2 Bis (2-mercaptobenzothiazolato) nickel (II), Ni (mbt) 2
  • 5.2.1.3 Lewis-base adducts of Ni (mbt) 2
  • 5.2.1.4 Bis (2-mercaptobenzothiazolato) cobalt (II), Co (mbt) 2
  • 5.2.1.5 Lewis-base adducts of Co (mbt) 2
  • 5.2.2 Kinetic Aspects
  • 5.2.3 Mechanistic Aspects
  • References
  • 6 Synthesis and characterisation of monomeric and poloymeric Lewis-base adducts of 2-mercaptobenzoxazolate complexes of Co (II) and Ni (II)
  • 6.1 Introduction
  • 6.2 Experimental
  • 6.2.1 Preparative Details
  • 6.2.1.1 Four-coordinated complexes of 2-mercaptobenozoxazole, mboH –
  • 6.2.1.2 Lewis-base adducts of M (mbo) 2
  • 6.3 Results and Discussion
  • 6.3.1 Four-Coordinated Co (mbo) 2 and Ni (mbo) 2
  • 6.3.2 Lewis-base Adducts of Co (mbo) 2
  • 6.3.2.1 infra-red spectra
  • 6.3.2.2 Electronic spectra and magnetic properties
  • 6.3.3 Lewis-base Adducts of Ni (mbo) 2
  • 6.3.3.1 Infra -red spectra
  • 6.3 3.2 Electronic spectra and magnetic properties
  • References
  • 7 Thermal characterisation of 2-mercaptobenzoxazolate complexes of Ni (II) and Co (II) and their Lewis-base adducts
  • 7.1 Introduction
  • 7.2 Results and Discussion
  • 7.2.1 Phenomenological Aspects
  • 7.2.1.1 Bis (2-mercaptobenzoxazolato) nickel (II), Ni (mbo) 2
  • 7.2.1.2 Lewis-base adducts of Ni (mbo) 2
  • 7.2.1.3 Bis (2-meccaptobenzoxazolato) cobalt (II), Co (mbo) 2
  • 7.2.1.4 Lewis-base adducts of Co (mbo) 2
  • 7.2 2 Kinetic Aspects
  • 7.2.3 Mechanistic Aspects
  • References
  • 8 Lewis-base adducts of bis (2 -mercaptobenzimidazolato) nickel (II)
  • 8.1 Introduction
  • 8.2 Experimental
  • 8.2.1 Preparative Details
  • 8.2.1 1 Four coordinated complexes of mbmH
  • 8.2.1.2 Lewis-base adducts of M (mbm) 2
  • 8.3 Results and Discussion
  • 8.3.1 Four-coordinated Co (ll) and Ni (ll.) Complexes of mbmH
  • 8.3.1.1 Infra red spectra
  • 8.3.1.2 Magnetic measurements
  • 8.3.1.3 Electronic spectra
  • 8.3.2 Lewis-base Adducts of M (mbm) 2
  • 8.3.2.1 Infra-red spectra
  • 8.3.2 2 Electronic spectra
  • 8. 3.2. 3.Thermal decomposition features
  • 8 3 2.3.1 Pleomenological aspects
  • 8.3.2 3.2 Kinetic and mechanistic aspects
  • 8.4 Comparison of Electronic Modulation in mbt; mbo and mbm Complexes on Adduct Formation
  • References
  • 9 Monomeric and dimeric Lewis-base adducts of bis (acetylacetonato) oxovanadium (IV)
  • 9.1 Introduction
  • 9.2 Experimental
  • 9.2.1 Preparative Details
  • 9.2.1 1 Preparation of bis (acetylacetonato) oxovanadium (IV), VO (acac) 2
  • 9.2.1.2 1.Lewis-base adducts of VO (acac) 2
  • 9.3 Results and Discussion
  • 9.3.1 Elemental Analysis
  • 9.3.2 Infra-red Spectra
  • 9.3.3 Electronic Spectra
  • 9.3.4 Magnetic Susceptibility Measurements
  • 9.3.5 Electron Spin Resonance Spectra
  • 9.3.6 Thermal Analysis
  • 9.3.6.1 Phenomenological aspects
  • 9.1.6.2 Kinetic and mechanistic aspects
  • References
  • 10 Summary and conclusions