Chemistry - II

By Prof. K. Mangala Sunder   |   IIT Madras
Learners enrolled: 113
ABOUT THE COURSE : Molecular Spectroscopy is a fundamentally important branch of Physical Chemistry and is vital for all practicing chemists, biologists and material scientists. It is also the field providing experimental verification of a large number of quantum mechanical concepts and enables researchers to obtain some of the most basic and important information about molecules such as bond length, bond angles, bond strengths, optical and magnetic properties. Primarily studied through the interaction of molecules with electromagnetic radiation of different types, molecular spectroscopy is studied through responses of molecules to radiation.

INTENDED AUDIENCE : Students of UG B.Sc., I Year of PG
  • Mathematics at the High school level;
  • Students should have a basic background in chemistry, calculus and elementary linear algebra;
  • Knowledge of elementary thermodynamics and atomic structure will be helpful.
Course Status : Upcoming
Course Type : Elective
Duration : 8 weeks
Start Date : 23 Jan 2023
End Date : 17 Mar 2023
Exam Date : 26 Mar 2023 IST
Enrollment Ends : 30 Jan 2023
Category :
  • Chemistry
Credit Points : 2
Level : Undergraduate/Postgraduate

Page Visits

Course layout

Week 1: Introduction to Spectroscopy
Week 2: Introductory Quantum Mechanics
Week 3: Elementary introduction to Vibrational (Infra-red) Absorption Spectroscopy of Diatomic Molecules
Week 4: Vibrational (Infra-red) Absorption Spectroscopy of Polyatomic Molecules: Normal Modes
Week 5: Vibrational Raman Spectra of Diatomic and Polyatomic Molecules
Week 6: Microwave Spectroscopy of Diatomic molecules
Week 7: Microwave Spectroscopy of Polyatomic Molecules and Elementary Electronic Spectroscopy
Week 8: Molecular Interactions and Rotation-Vibration and Vibration-Electronic Coupling

Books and references

1. C. N. Banwell and E. M. McCash, Fundamentals of Molecular spectroscopy, Tata McGraw-Hill Publishing Company, New Delhi, 1994 or later edition.
2. J. M. Hollas, Molecular Spectroscopy, John Wiley and Sons, Ltd. 2004 or later edition.

Instructor bio

Prof. K. Mangala Sunder

IIT Madras
Mangala Sunder Krishnan is a Professor in the Chemistry Department and specializes in the area of theoretical molecular and magnetic resonance spectroscopies, quantum chemistry and quantum information. He obtained his Ph. D. in theoretical chemistry from McGill University, Montreal, Canada in 1988 and has spent several years in Canada as post-doctoral research fellow in Canada before returning to India as a faculty in IIT Madras. In addition, he is one of the founder-coordinators of the NPTEL project and has been associated with it since 2001.

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: 
26 March 2023 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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