Course Review: CH521/CH828

CH521: Interpretative Molecular Spectroscpy

~ By Neha Idnani

Disclaimer:The content of this page are opinions expressed by individual students. The information provided is for guidance purposes. Use the information at your own risk.



During which semester & year you took the course ?

Autumn Semester 2019

Course Instructor

Prof. Suvarn S. Kulkarni and Prof. G.K. Lahiri

What grade was awarded to you?


Course Difficulty (On a scale of 1 to 5)


Comment on the grading done by the professor in your opinion?

I think the grading was quite moderate.

What was the Attendance Policy?

Attendance was taken however no DX awarded



This Course evaluation comprises of

For ESR: quiz – 10 % Mid-sem – 40% For NMR: quiz – 10 % End-sem – 40 %

What are the topics covered in the course?

Infrared spectroscopy :Characteristic group frequencies of organic and inorganic molecules. Nuclear magnetic resonance spectroscopy of compounds containing 1H,13C. 2D NMR (COSY, NOSY, HETCOR, HMQC, NOESY). Mass spectrometry, the production and analysis of positive ions, molecular ions, application of isotopic abundance measurements, fragmentation modes and rearrangement of ions. Mass spectra of certain chemical classes.

Electron Spin Resonance (ESR) :Identification of organic and inorganic compounds using combination of spectral data.

How were the Lectures for this course?

This course is taught by two professors. Prof. Lahiri asks you to make notes in the lecture itself which are helpful during exam time. He makes sure that he teaches the course from the basics. He brings in unique inorganic EPR active molecules in the class which are recently published to make you better understand the concept. Prof. Kulkarni is very calm during teaching. I personally liked his way of teaching. From easy questions to toughest one, every question is solved in the class. The slides contain various examples to be solved. Overall, you will enjoy learning spectroscopic techniques with them.

How were the Exams for this course?

For the ESR part, the exam includes 10-15% of difficult question, but if the concept are clear you may find them easy. Lectures notes will help you a lot in ESR. For the other half course, the exam is moderate, practicing problems on NMR, NOESY, COSY, IR, MASS will help you a lot.

How are the Assignments & Projects for this course?

Assignments if given will generally include questions to help you perform better in exams.

Any tips for the junta to perform well in the course?

The most important tip is practice. Practice various structure determining questions on NMR , IR to enhance your problem solving skills. Try to solve all the questions by yourself during the lecture, it will help you gain a better understanding of questions asked in exams.

References used in this course:

If you pay attention in class and go through the lecture notes and slides you don’t need to go through references for studying. Use this references for problem solving. 1)R. S. Drago, Physical Methods for Chemists, W. B. Saunders,1992. 2) R. M. Silverstein, C. G. Bassler and T. C. Morril, Spectrophotometric Identification of Organic Compounds, 5th edition,Wiley, 1991.

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