FREE RADICAL REACTIONS

Lesson Structure 1.0       Objectives 1.1       Introductions 1.2       Mechanism of free radical substitution 1.2.1    Free-radical substitution of alkanes 1.2.2    Free-radical halogenation is most commonly applied to allylic or benzylic halogenations       1.3       Neighbouring group assistance in free radical reactions 1.4       Reactivity 1.4.1    Reactivity for aliphatic substrates: 1.4.2    Reactivity in aromatic substrate: 1.4.3    Reactivity in the attacking radicals: [...]

2022-12-26T23:19:29+05:30December 26th, 2022|

ALIPHATIC NUCLEOPHILIC SUBSTITUTION

Lesson Structure 1.0       Objectives 1.1       Introductions 1.1.1    Leaving groups as (or leaving) nucleophiles or nucleofuge 1.1.2    Incoming nucleophile   1.2.      Mechanism SN2 Reaction 1.3.      The SN1 mechanism (carbocation process) 1.3.1    Evidence for the SN1 mechanism 1.4.      Mixed SN1 and SN2 mechanism 1.5.      SNi mechanism 1.6.      SET mechanism 1.6.1    Evidence for SET mechanism: 1.7.      Neighbouring Group Participation [...]

2022-12-25T18:37:12+05:30December 25th, 2022|

Stereochemistry

Lesson Structure Conformational analysis of cycloalkanes Decalins Effect of Conformation on reactivity Conformation of sugars Steric strain due to unavoidable crowding Element of symmetry Chirality Molecules more than one chiral center threo and erythro isomers Method of resolution Optical purity Enantiotopic and diastereotopic atoms, groups and Faces Stereospecific and stereoselective synthesis Asymmetric synthesis Optical activity [...]

2022-12-23T18:59:38+05:30December 23rd, 2022|

VIBRATIONAL SPECTRA (INFRARED SPECTRA)

Lesson Structure 1.0       Objective 1.1       Introduction 1.2       Molecular vibration 1.3       Vibration of a single particle (classical) 1.4       The vibration of two particles system (classical) 1.5       Schrödinger Equation applied to Harmonic oscillator 1.6       Zero point energy 1.7       Selection Rule 1.8       Boltzmann Distribution 1.9       Force constant and Bond strength 1.10     The Anharmonic oscillator 1.11     Fundamental and Overtone [...]

2023-01-09T22:29:29+05:30November 27th, 2022|

ROTATIONAL SPECTRA (Microwave Spectroscopy)

Lesson Structure 1.0     Objective 1.1     Introduction 1.2     Classification of molecules 1.3     Rotational spectra of regid diatomic molecules 1.4     Selection rules 1.5     Non-rigid rotator 1.6     Spectrum of a non-rigid rotator 1.7     Linear polyatomic molecules 1.8     Non-linear polyatomic molecules 1.9     Asymmetric top molecles 1.10.  Starck effect           Solved Problems         [...]

2022-11-27T21:37:52+05:30November 27th, 2022|
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