For a reaction, an energy diagram needs to be drawn having a high E a and value of Δ H = + 20 kcal/mol . Concept Introduction: In energy diagram, energy versus progress of the reaction-the reaction coordinates are plotted. Reactants are placed in the left side and products in right side. These reactants and products are connected by a smooth curve that represent how energy change with time. When two reactions approach each other, a repulsion takes place, so the energy is increased until a maximum value is achieved. This state is called transition state and energy difference between the transition state and reactants are called the activation energy, E a . As the bonds form between the reactants, the energy decreases until a stable minimum energy is achieved. The difference in energy between the reactants and the products is the enthalpy change, ΔH.

Question

Part II. Given below are the 'H-NMR spectrum at 300 MHz in CDC13 and mass spectrum using electron ionization of compound Brian. The FTIR of the said compound showed a strong peak at 1710 cm"). Determine the following: (a) molecular Formula and Degree of unsaturation of compound Brian (b) Basing on the given H-NMR spectrum tabulate the following (i) chemical shifts (ii) integration, ciii) multiplicity and (iv) interferences made for each signal (c) Draw the structure of compound Brian. ) ΕΙ 43 41 27 71 114 (M+) Hmmm 20 30 40 50 60 70 80 90 100 110 120 1H NMR spectrum 300 MHz in CDCl3 2.0 alle 1.0

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Question

Chapter 6.3, Problem 6.7PP

Interpretation Introduction

Interpretation:

For a reaction, an energy diagram needs to be drawn having a high E_a and value of ΔH=+20 kcal/mol.

Concept Introduction:

In energy diagram, energy versus progress of the reaction-the reaction coordinates are plotted. Reactants are placed in the left side and products in right side. These reactants and products are connected by a smooth curve that represent how energy change with time.

When two reactions approach each other, a repulsion takes place, so the energy is increased until a maximum value is achieved. This state is called transition state and energy difference between the transition state and reactants are called the activation energy, E_a. As the bonds form between the reactants, the energy decreases until a stable minimum energy is achieved. The difference in energy between the reactants and the products is the enthalpy change, ΔH.

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