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Infrared (IR) Spectroscopy : Analyzing any IR spectrum
Highest Rated
Rating: 4.5 out of 5(19 ratings)
85 students

Infrared (IR) Spectroscopy : Analyzing any IR spectrum

Short course of IR spectroscopy
Highest Rated
Created byChemistry Ka
Last updated 6/2021
English

What you'll learn

  • Basics of Infrared spectroscopy
  • Key parts of Infrared spectroscopy
  • Analyze IR spectra

Course content

1 section • 9 lectures • 1h 33m total length

  • IR spectroscopy : Introduction16:48

    Learn to analyze any infrared spectrum by understanding infrared spectroscopy as vibrational spectroscopy, using wave numbers, absorption bands, and the harmonic model to identify functional groups and molecular vibrations.

  • Vibrational modes12:21
  • Fundamentals of IR spectroscopy9:08

    Explore the fundamentals of infrared spectroscopy through the classical harmonic oscillator model, bond stretching vibrations, and how the spring constant and reduced mass determine vibrational frequencies and wavenumbers.

  • Wavenumber of chemical bonds and IR spectra analysis11:27
  • Step by step for IR spectra analysis5:39
  • Hydrocarbons (C-H) compounds : IR spectra analysis11:36

    Learn to interpret hydrocarbon infrared spectra by analyzing C–H stretches around 2900 cm-1, distinguishing symmetric and asymmetric modes, and using the fingerprint region to identify alkanes, alkenes, and aromatic hydrocarbons.

  • Hydroxyl group (-OH) - containing compounds : IR spectra analysis10:08
  • Index of hydrogen deficiency calculation (Degree of unsaturation)5:28
  • Practice IR spectra analysis : Examples10:39

    Practice infrared spectroscopy by matching a molecular formula to the spectrum, dividing the spectrum into two regions, and using the index of hydrogen deficiency.

Requirements

  • Basics in analytical chemistry

Description

Spectroscopy is the study of how light interacts with matter. Spectroscopy is used to determine the structure and functional groups of organic compounds.

The course exhibits the key parts of Infrared spectroscopy technique. It is basically intended for beginners with basic knowledges in analytical chemistry. The course starts with a concise introduction and represents the fundamentals of this technique based on the classical Harmonic oscillator model. The students will understand why it is called “Vibrational Spectroscopy”.

A step-by-step explanation is given in order to develop the ability to analyze any IR spectra. The last session of the course contains different examples in order to practice the interpretation of ir spectra.

The course focuses on:

1) - Basic principles of spectroscopy: absorption of light and vibrations of bonds.

2) - How the vibration frequency of a chemical bond can be compared to that of the oscillation of a spring.

3) - How to predict by calculation the wavenumber corresponding to any type of chemical bond.

4) - Interpretation of IR spectra of hydrocarbons containing single, double and triple carbon-carbon bonds.

5) - Influence of hydrogen bonds on the width of the absorption bands of an IR spectrum.

6) - Identification of a chemical compound corresponding to a given IR spectrum.

Who this course is for:

  • Beginners in analytical chemistry

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