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, 2017
Time 3 Hours. Full Marks 80
Answer any FIVE Questions.
All questions carry equal marks.
1. Write the details about the application of IR spectroscopy in determing the structure of metal
carbonyls.
2. Write selection rules observed in IR spectra of diatomic molecules.
How IR spectra can be used to distinguish Fe(II) and Fe(III) ions.
3. Write notes on the following
Explain Vibronic Coupling.
Nephelauxetic Ratio.
4. Explain charge transfer Bands and their assignment in both octahedral and tetrahedral field.
5. Explain Jahn-Teller distortion and spectra with reference to 1
Ti H 2O 6 d and
O o
2 6 .
6. Application of E.S.R. spectroscopy in study of Inorganic Chemistry.
7. Derive term symbol for d² electronic system and determine the ground state term.
8. What is condition for Mossbauer spectra to occune Discuss its important application.
9. How Nephelamxetic effect. Explain the limitation of crystal field theory and is an evidence for
Ligand field theory for complex formation Write down the nephelanxetic series for the
ligands and metal separately.
10. Write short notes on the following
Hund's Rule for determination of ground state term.
Condon-Shortly parameter.