Introduction to Molecular Spectroscopy

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Introduction to Molecular Spectroscopy

Coursera (CC)
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Description

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About this course: The course introduces the three key spectroscopic methods used by chemists and biochemists to analyse the molecular and electronic structure of atoms and molecules. These are UV/Visible , Infra-red (IR) and Nuclear Magnetic Resonance (NMR) spectroscopies. The content is presented using short focussed and interactive screencast presentations accompanied by formative quizzes to probe understanding of the key concepts presented. Numerous exercises are provided to facilitate mastery of each topic. A unique virtual spectroscopic laboratory is made available to enable students to measure and analyse spectra online. Assessment is via summative quizzes completed during the co…

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Didn't find what you were looking for? See also: Chemistry, Chemical Engineering, Chemical Physics, Applied Chemistry, and Cartography.

When you enroll for courses through Coursera you get to choose for a paid plan or for a free plan

  • Free plan: No certicification and/or audit only. You will have access to all course materials except graded items.
  • Paid plan: Commit to earning a Certificate—it's a trusted, shareable way to showcase your new skills.

About this course: The course introduces the three key spectroscopic methods used by chemists and biochemists to analyse the molecular and electronic structure of atoms and molecules. These are UV/Visible , Infra-red (IR) and Nuclear Magnetic Resonance (NMR) spectroscopies. The content is presented using short focussed and interactive screencast presentations accompanied by formative quizzes to probe understanding of the key concepts presented. Numerous exercises are provided to facilitate mastery of each topic. A unique virtual spectroscopic laboratory is made available to enable students to measure and analyse spectra online. Assessment is via summative quizzes completed during the course period.

Created by:  University of Manchester
  • Taught by:  Patrick J O'Malley, D.Sc, Reader

    Chemistry
Level Intermediate Language English How To Pass Pass all graded assignments to complete the course. User Ratings 4.3 stars Average User Rating 4.3See what learners said Задания курса

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Syllabus


WEEK 1


Ultraviolet and Visible Spectroscopy



In this first week we introduce the electromagnetic spectrum and the origin of transitions giving rise to ultraviolet and visible (UV/Vis) spectra. You will learn that electronic transitions are caused by absorption of radiation in the UV/Vis region of the electromagnetic spectrum. The reason for the wavelength and intensity of bands will be described and the colour origin of certain compounds will be discussed. You will also be shown how UV/Vis spectroscopy is performed and you will be able to run and analyse your own spectra. As the final activity in this module you are given a link to view how to obtain a UV/Visible spectrum in the laboratory. Good luck, try and participate in the discussion forums to enhance your learning and don't forget to complete the end of week laboratory quiz which contributes to your final mark.


10 videos, 7 readings, 1 practice quiz expand


  1. Video: Introduction
  2. Материал для самостоятельного изучения: Guidance for studying the course
  3. Материал для самостоятельного изучения: ACKNOWLEDGEMENTS
  4. Материал для самостоятельного изучения: Pre-course survey
  5. Материал для самостоятельного изучения: Week 1 Lecture Notes
  6. Video: What is spectroscopy?
  7. Video: The nature and properties of electromagnetic radiation
  8. Video: Example of energy calculation
  9. Video: Energy levels: Molecular Orbital Theory - revision
  10. Video: Molecular Orbital diagram for CO
  11. Video: UV/Visible spectroscopy
  12. Video: Example of Beer-Lambert calculation
  13. Video: Transitions relevant to UV/Vis Spectroscopy
  14. Video: Effect of conjugation on wavelength
  15. Тренировочный тест: Week 1
  16. Материал для самостоятельного изучения: Lab 1 Introduction
  17. Материал для самостоятельного изучения: How to obtain a UV/Vis spectrum
  18. Материал для самостоятельного изучения: Run a UV/Visible spectrum

Graded: UV/Vis laboratory quiz

WEEK 2


Infrared Spectroscopy



In this module we introduce the theory underpinning infrared (IR) spectroscopy and show examples of analysis using the technique. Transitions between the vibrational energy levels of molecules occurs in the infrared region of the electromagnetic spectrum. We start with the theory underlying vibration using the simple harmonic oscillator model. Analysis of more complex molecules is introduced using group frequencies and number of vibrational modes. You will also be shown how to obtain an infrared spectrum and will have an opportunity to run your own spectrum. At the end of this module you are given a link to view how to obtain an infra red spectrum in the laboratory. Don't forget to complete the end of week laboratory quiz which contributes to your final mark for this course.


6 videos, 4 readings, 1 practice quiz expand


  1. Материал для самостоятельного изучения: Week 2 Lecture Notes
  2. Video: Infrared spectroscopy
  3. Video: Vibrational frequency
  4. Video: Example vibrational frequency calculation
  5. Video: Energy levels and dipoles
  6. Video: Vibrational modes
  7. Video: Example IR spectra of organic molecules
  8. Тренировочный тест: Week 2
  9. Материал для самостоятельного изучения: Lab 2 Introduction
  10. Материал для самостоятельного изучения: How to obtain an infra red spectrum
  11. Материал для самостоятельного изучения: Run an infra red spectrum

Graded: IR Lab Quiz

WEEK 3


Nuclear Magnetic Resonance (NMR) Spectroscopy



This week we concentrate on Nuclear Magnetic Resonance (NMR) spectroscopy. Here a magnetic field is used to create energy levels for magnetic nuclei present in a molecule. Transition between these energy levels occurs in the radiofrequency region of the electromagnetic spectrum. The positions of the bands in the observed spectrum is dependent on the shielding of the nuclei by the local electronic structure, giving rise to a parameter known as chemical shift. Bands also display fine structure caused by spin-spin coupling with neighbouring nuclei. Examples on the analysis of NMR spectra for structure determination will be given. As the final activity in this module you are given a link to view how to obtain an NMR spectrum in the laboratory. Don't forget to compete this end of week laboratory quiz which contributes to your final mark.


9 videos, 4 readings, 1 practice quiz expand


  1. Материал для самостоятельного изучения: Week 3 Lecture Notes
  2. Video: NMR Spectroscopy Introduction
  3. Video: Nuclear spin in an external magnetic field
  4. Video: Spin and magnetisation
  5. Video: Chemical shift
  6. Video: on chemical shift
  7. Video: Analysis of proton spectra
  8. Video: Spin-spin coupling
  9. Video: Spin-spin coupling mechanism
  10. Video: Carbon-13 NMR and pulsed methods
  11. Тренировочный тест: Week 3
  12. Материал для самостоятельного изучения: Lab 3 Introduction
  13. Материал для самостоятельного изучения: How to obtain an NMR spectrum
  14. Материал для самостоятельного изучения: Run an NMR spectrum

Graded: NMR lab quiz

WEEK 4


Final Assessment





    Graded: Week 4 Quiz
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