Wednesday, March 6, 2013

Resonance structure of acetylacetonate, magnetic moment of Mn(acac)3

Questions:

1. Draw the structures of acetylacetonate and its resonance structure.

image

 

 

2. Structure of Mn(acac)3

image

 

 

3. Find out the magnetic moment of Mn(acac)3.

Charge of Mn3+ = +3

Total number of electron in Mn atom = 25

Number of electron in Mn3+ ion = 22

Eletron configuration of Mn3+ : [Ar] 3d4

μs = g √s(s+1)

= 2 √ 2(2+1)

= 4.90μB

 

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