课程信息
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.
Globe

100% 在线课程

立即开始,按照自己的计划学习。
Intermediate Level

中级

Clock

完成时间大约为11 小时

建议:6 hours/week
Comment Dots

English

字幕:English
Globe

100% 在线课程

立即开始,按照自己的计划学习。
Intermediate Level

中级

Clock

完成时间大约为11 小时

建议:6 hours/week
Comment Dots

English

字幕:English

Syllabus - What you will learn from this course

1

Section
Clock
3 hours to complete

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....
Reading
10 videos (Total 89 min), 7 readings, 2 quizzes
Video10 videos
What is spectroscopy?9m
The nature and properties of electromagnetic radiation6m
Example of energy calculation10m
Energy levels: Molecular Orbital Theory - revision11m
Molecular Orbital diagram for CO5m
UV/Visible spectroscopy10m
Example of Beer-Lambert calculation8m
Transitions relevant to UV/Vis Spectroscopy15m
Effect of conjugation on wavelength8m
Reading7 readings
Guidance for studying the course10m
ACKNOWLEDGEMENTS10m
Pre-course survey5m
Week 1 Lecture Notes10m
Lab 1 Introduction10m
How to obtain a UV/Vis spectrum10m
Run a UV/Visible spectrum10m
Quiz2 practice exercises
Week 128m
UV/Vis laboratory quiz4m

2

Section
Clock
2 hours to complete

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....
Reading
6 videos (Total 72 min), 4 readings, 2 quizzes
Video6 videos
Vibrational frequency12m
Example vibrational frequency calculation10m
Energy levels and dipoles14m
Vibrational modes9m
Example IR spectra of organic molecules12m
Reading4 readings
Week 2 Lecture Notes10m
Lab 2 Introduction10m
How to obtain an infra red spectrum10m
Run an infra red spectrum10m
Quiz2 practice exercises
Week 220m
IR Lab Quiz4m

3

Section
Clock
3 hours to complete

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. ...
Reading
9 videos (Total 114 min), 4 readings, 2 quizzes
Video9 videos
Nuclear spin in an external magnetic field10m
Spin and magnetisation13m
Chemical shift18m
More on chemical shift19m
Analysis of proton spectra5m
Spin-spin coupling6m
Spin-spin coupling mechanism18m
Carbon-13 NMR and pulsed methods10m
Reading4 readings
Week 3 Lecture Notes10m
Lab 3 Introduction10m
How to obtain an NMR spectrum10m
Run an NMR spectrum10m
Quiz2 practice exercises
Week 320m
NMR lab quiz4m

4

Section
Clock
1 hour to complete

Final Assessment

...
Reading
1 quiz
Quiz1 practice exercises
Week 4 Quiz0m
4.5

Top Reviews

By ESApr 3rd 2018

Excellent material and pace. Assignments were challenging but could be completed from the lecture material alone. Overall a great experience.

By DJSep 16th 2017

Wonderful and perfect course to understand molecular spectroscopy.\n\nI thank to Professor, coursera and entire team.

Instructor

About University of Manchester

Tracing its roots back to 1824, the University of Manchester is home to almost 40,000 students. The University has three Nobel laureates among its current staff – more than any other British university - and a total of 25 Nobel laureates have come from our past and present students and staff. We have three main goals: to undertake world-class research; to deliver an outstanding learning and student experience; and to be socially responsible....

Frequently Asked Questions

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