Module 2 : Molecular Structure
Lecture 7 : Homonuclear Diatomic Molecules
 
The sketches of to are shown in fig 7.8 (a) to (c).
                     
 
Fig 7.8 (a) The 2p MO : (pz)A(1) + (pz)B(1) for r AB = 7 a0 (> 4 a0) for the hydrogen p-orbitals. The value of the MO on the contours C1', C2' , C3' , C5 and C6 are -0.08, -0.03, 0.17, 0.07 and 0.02 -3/ 2 respectively.

 
             


Fig 7.8 (b) 2p MO : (px)A(1) + (px)B(1). The values of the MO on the contours C1, C2, C3 and C4 are 0.29, 0.20, 0.12 and .04 -3/ 2 respectively. The values on the contours Cn' are negative of the values on the contours Cn.
 

                Text Box:         
y1A/a0 and y1B/a0
                                                      x1A / a0 and x1B / a0
 
Fig 7.8 (c) Sigma and pi molecular orbitals. * 2p MO : (px)A(1) - (px)B(1). The values of the MO on the contours C1, C2, C3 and C4 are 0.05, 0.03, 0.02 and .0.01-3/ 2 respectively. The values on the contours Cn' are negative of the values of Cn. (Sigma and pi molecular orbitals).
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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