Application of Spectroscopic Methods in Molecular Structure Determination

By Prof. Sankararaman   |   IIT Madras
Learners enrolled: 2691
Chemists are molecule makers.  Whenever a new molecule is synthesized it is essential to determine its structure using spectroscopic techniques.  This course is all about practical applications of spectroscopic methods for the determination of organic molecules.

INTENDED AUDIENCE: BSc Chemistry final year, MSc Chemistry and PhD Chemistry students.

PREREQUISITES       :         A good background knowledge in organic chemistry/stereochemistry necessary

INDUSTRY SUPPORT :    Scientists in Chemical and Pharma industry will be interested. Beneficial to scientists working chemistry in R&D labs, national labs etc
Course Status : Completed
Course Type : Elective
Duration : 8 weeks
Category :
  • Chemistry
Credit Points : 2
Level : Undergraduate/Postgraduate
Start Date : 25 Jul 2022
End Date : 16 Sep 2022
Enrollment Ends : 08 Aug 2022
Exam Date : 25 Sep 2022 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Introduction to spectroscopic methods – Nuclear magnetic resonance spectroscopy (NMR), spin ½ nuclei, 1H and 13C-NMR spectroscopy, FT-NMR method. Chemical shifts, spin spin coupling, spin-spin splitting pattern recognition for structure elucidation, coupling constants.
Week 2: 1H NMR spectroscopy, Second order effects in NMR spectrum, AB and AA’BB’, ABC spin systems. Solving simple structure elucidation problems with 1H and 13C NMR spectroscopy
Week 3: Stereochemistry determination using NMR techniques. Study of dynamic processes by NMR spectroscopy – examples from organic and organometallic chemistry
Week 4: Mass Spectrometry – various ionization methods – EI, CI, ESI and MALDI methods, fragmentation patterns of simple organic molecules, Use of HRMS.
Week 5: Mass spectrometry – fragmentation patterns of simple organic molecules (continued), solving structure elucidation problems using mass spectrometry.
Week 6: Infra-red spectroscopy – basic concepts, experimental methods, functional group analysis and identification using IR spectroscopy, structural effects on vibrational frequency
Week 7: UV-Vis spectroscopy, electronic transitions in organic molecules, selection rules, application of Beer Lambert law, qualitative and quantitative analysis by UV-Vis spectroscopy.
Week 8: Solving structure elucidation problems using multiple spectroscopic data (NMR, MS, IR and UV-Vis).

Books and references


Instructor bio

Prof. Sankararaman

IIT Madras
Prof. S. Sankararaman has 25 years of teaching and research experience at IIT Madras He teaches theory courses on organic chemistry, organometallic chemistry, spectroscopy and photochemistry to MSc and PhD students in addition to teaching basic organic and inorganic chemistry courses to B.Tech students. He has written a textbook on Pericyclic Reactions published by Wiley-VCH in 2005.  His research interests are in the areas of organic and organometallic chemistry, organic synthesis and catalysis.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 25 September 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 6 assignments out of the total 8 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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