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, 2016
Time 3 Hours. Full Marks 80
Answer any FIVE Questions.
All questions carry equal marks.
1. Write in details about the application of IR spectroscopy in determing the structure of metal
Nitrosyles.
2. What do you understand by d-d transition Explain the phenomenon of electronic transition
from Ligand to metal ion and vice versa. How does the above transitions mainly contribute to
explain the colour and spectra produced in the formation of transition metal compounds in
complexes.
3. What are Condon-Shortly parameter.
Explain L-S and J-J coupling.
4. Application of E.S.R. spectroscopy in the study of Inorganic Chemistry.
5. Write explanatory notes of the following
John Teller Distortion effect.
Non Crossing rule.
6. Write down the following
Hund's Rule for determination of ground state term.
Mossbauer spectra.
7. Discuss the condition for the cross-over point from weak field to strong field limit.
What are the ground state term for and V2+ ion system.
8. Explain the transition and different bands in Co2+ ion in octahedral complexes.
9. Write down the type of splitting that Russel Sanders term undergo the influence of octahedral
field. Explain why Mn(II) complexes magnetic moment value equal to spin only.
10. Write short notes on the following
Spin cross over phenomena.
Nephelauxetic ratio.