Diatomic molecules energy level diagrams

Figure 7.14 Molecular orbital energy level diagram for first-row homonuclear diatomic molecules. The 2p, 2py, 2p atomic orbitals are degenerate in an atom and have been separated for convenience. (In O2 and F2 the order of

FIGURE 3.31 Atypical molecular orbital energy-level diagram for the homonuclear diatomic molecules Li2 through N2. Each box represents one molecular orbital and can accommodate up to two electrons. 

FIGURE 3.33 A typical d molecular orbital energy-level diagram for a heteronuclear diatomic molecule AB the relative contributions of the atomic orbitals to the molecular orbitals are represented by the relative sizes of the spheres and the horizontal position of the boxes. In this case, A is the more electronegative of the two elements. 

The molecular orbital energy-level diagrams of heteronuclear diatomic molecules are much harder to predict qualitatitvely and we have to calculate each one explicitly because the atomic orbitals contribute differently to each one. Figure 3.35 shows the calculated scheme typically found for CO and NO. We can use this diagram to state the electron configuration by using the same procedure as for homonuclear diatomic molecules. 

FIGURE 3.7 Energy level diagrams for diatomic molecules of second-row elements. Early members of the series follow the diagram shown in (b), whereas later members follow (a). 

MO energy-level diagram for diatomic molecules (energy increases vertically). Note that there are two n2p and two orbitals,... 

Energy level diagram of a heteronuclear diatomic molecule. 

Fig Molecular orbital energy level diagram for diatomic homonuclear molecules such as 02, F2, etc. 

The Tormation of bonding and antibonding combinations of atomic orbitals in diatomic molecules, and the corresponding energy-level diagrams. 

The MO energy-level diagrams, bond orders, bond energies, and bond lengths for the diatomic molecules B2 through F2. Note that for 02 and F2 the cr orbital is lower in energy than the ir2p orbitals. 

FIGURE 20.1 An energy-level diagram for a diatomic molecule, showing the electronic, vibrational, and rotational levels schematically. The arrow indicates one of the many possible transitions in this case the rotational, vibrational, and electronic states of the molecule all change. 

Molecular Orbitals of H2. The simplest example of a diatomic molecule is H2. For this molecule, the only atomic orbitals available are the Is orbitals of the hydrogens. These orbitals interact to yield bonding als and antibonding als molecular orbitals the molecular orbital energy level diagram is shown in Figure 2-3. (Subscripts are often used to designate the atomic orbitals from which the molecular orbitals are derived.)... 

Prepare a molecular orbital energy level diagram for nitric oxide (NO) and predict the bond order of this molecule. On the basis of the molecular orbital diagram, what do you predict for the bond orders of NO+ and NO Which of these diatomic species would you expect to have the shortest bond length Why ... 

Figure 9-5 shows molecular orbital energy level diagrams for homonuclear diatomic molecules of elements in the first and second periods. Each diagram is an extension of the... 

Figure 9-5 Energy level diagrams for first- and second-period homonuclear diatomic molecules and ions (not drawn to scale). The sohd lines represent the relative energies of the indicated atomic and molecular orbitals, (a) The diagram for H2, Hc2, Li2, Bc2, B2, C2, and N2 molecules and their ions, (b) The diagram for O2, F2 and Nc2 molecules and their...

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