N A L A N D A O P E N U N I V E R S I T Y
M.Sc. Chemistry, Part-II
PAPER-XII
(Ligand Field Theory)
Annual Examination, 2018
Time 3 Hours. Full Marks 80
Answer any FIVE Questions.
All questions carry equal marks.
1. How can the following be distinguished by IR spectroscopy
NO NO
2. Explain the application of IR in linkage isomerism.
Explain L S and J J coupling.
3. Explain Hund's rules.
Find out total microstates term of d² system.
Calculate spin orbit coupling constant in a d² system.
4. Assign the ground state term for Mn and V ions
How does the term 4F split by spin orbit coupling.
5. Write notes on the following
Racah parameters
Non-crossing Rule
6. Explain Tanabe-Sugano diagram of d² system.
The octahedral complex of Cr has three absorption bands at 34,400, 22700 and
14900 Cm . Calculate and B 1
7. Explain John-Teller distortion giving example of the spectra of 3
2 6
T H O i and
2
2 6
Cu H O .
What is Vibronic coupling.
8. Explain the application of ESR spectroscopy in the study of Inorganic Chemistry
9. Explain the mode of ligand bonding and application of IR spectroscopy in its discussion
10. Write short notes on any Two of the following
Nephelauxetic Ratio
Spin cross over phenomenon
Condon shortley parameters