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-I
PAPER-VII
(Reaction Mechanism and Super Molecular Chemistry)
Annual Examination, 2016
Time 3 Hours. Full Marks 80
Answer any FIVE Questions.
All questions carry equal marks.
1. Explain associative and dissociative mechanism with examples.
Discuss the phenomenon of phosphorescence and fluorescence.
2. Describe the electron transfer reaction by inner and outer mechanism. Give examples.
3. Draw the structure of mononuclear Schiff's base complex of Ruthenium and binuclear Schiff
base complex of cobalt. Discuss bidenate Schiff's metal complexes.
4. Electron transfer between
Fe CN 6 and 4
Fe CN 6 is much more faster than between

Co NH 3 6 and
Co NH 3 6 why
5. Enumerate the concept in supermolecular chemistry. Explain any three of these concepts.
6. Draw Tanabe Sugano energy level diagram of Cr(III) octahedral complexes and describe
associated photochemical process.
7. Discuss all possible path ways of recemization of optical isomers of octahedral complexes with
suitable examples.
8. What do you understand by metal alkoxide Give two methods to prepare metal alkoxides.
Draw the structure of tetrameric alkoxide and discuss it. What are important applications of
metal alkoxides.
9. Explain the following statements
The temperature has little effect on photochemical reaction.
Photochemical reactions do not reed Collisions.
Free energy value is not negative in photochemical reaction.
Photochemical activation is selective.
10. Write notes on any Two of the following
Excited electron transfer.
Mixed Valence Complexes.
Application of Supermolecular Chemistry.