A photon of violet light has a wavelength of 500 nm. Calculate

What is meant by the octant sign? How can you follow the octant rule to determine the absolute
configuration of cyclic ketones? How do we confirm whether a complex is ∆-isomer or
˄-isomer? 

What are Racah parameters? What do they signify? The gas-phase ion V3+ has a 3F ground term. The 1D and 3P terms lie, respectively, 10,642 and 12,920 cm-1 above it. The energies of the terms are given in terms of Racah parameters as E(
3F) = A=8B, E( 3P)=A+7B, E( 1D) = A-3B+2C. Calculate the values of B and C for V 3+

With a suitable example explain intermolecular antiferromagnetism. Give its mechanism for the
case of direct metal-metal interaction. Give suitable illustrations.

 With the help of a suitable diagram explain the trend of paramagnetic moments of La3+ and the lanthanoid ions at 300K. Why is the chance of superexchange interaction less in lanthanoid complexes?

With the help of suitable diagrams give the differences

Differentiate between catalysis and cocatalysis in

Give the octahedral as well as tetrahedral field electronic configuration for the Cr3+ and Mn2+
ions. Which site will be preferred by these ions, octahedral or tetrahedral? Justify your answer.

 What is Jahn Teller effect? As a manifestation of it show why high-spin d4 (e.g., Cr2+) and lowspin d7  six-coordinate complexes (e.g. Co2+) may show distortion. 

What are the advantageous of having synthetic models of

With the help of a suitable diagram explain the minimal self-

 What are the types of interactions that take place when hosts

 Draw the diagrams for Soccer ball” cryptand molecule which

 Distinguish between clatharate and clathrand? What are

What are the different types of supramolecular complexes?

 Explain dipole-dipole interactions in supramolecular chemistry

What is Jahn Teller effect? As a manifestation of it show why high-spin d

What are heterocarboranes? Which elements are involved in it? With suitable equation give the
preparation of any one multidecker metal sandwich complexes.

Give a suitable chemical equation for the preparation of molybdenocene. Gives its reaction with
ethylene.

With the help of suitable diagram explain the Tolman cone angle in phosphines.