Nitric oxide molecular orbital diagram

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 ... 

Molecular orbital diagram for nitric oxide (NO) (1s orbitals not shown) orbitals of N a ... 

The importance of nitric oxide in biological systems was introduced in Chapter 8. Draw the molecular orbital diagram for nitric oxide. (Assume the ordering of molecular orbitals to be like that in O2.)... 

Lewis dot diagrams of nitric oxide compared to the nitrosonium ion and molecular nitrogen. Each bond contains one electron from each atom. These simple diagrams fail to properly account for the effective bond order of 2.5 predicted by molecular orbital theory and must be only considered as illustrative. The dimer of two nitric oxide molecules has five bonds, which is the same as two individual molecules. Thus, nitric oxide remains dissociated at room temperatures. 

Resonance forms for the sulfite ion have not been included. There has been discussion concerning whether the compound should be considered a sulfonated hyponitrite (16) or a nitrosated hydroxylamine sulfonate (9). The compound can be prepared by nitrosating a sulfonated hydroxylamine (9). There is little to be gained by this dispute, for the structure is best described as in the above diagrams or in molecular orbital terminology. The reaction of sulfite ion and nitric oxide is best considered as a Lewis acid-base reaction in which nitric oxide behaves as the acid and sulfite ion as the donor. A reaction sequence can be formulated with the following equations ... 

Molecular orbital theory then explains why NO is stable with respect to N and O atoms, and predicts that NO+ will form fairly easily. We have not explained why nitric oxide gas consists of NO molecules rather than N202 molecules, or why NO is unstable with respect to oxidation by oxygen to N02. To do this, we would have to consider orbital energy-level diagrams for N202 or N02 and 02 as well. 

In order to understand the bonding in metallic nitrosyls, let us first see the molecular orbital (MO) diagram of a nitric oxide (NO) molecule, shown in Figure 1. 

Figure 1 Molecular orbital energy level diagram of nitric oxide.

From the MO diagram of a nitric oxide molecule, as shown in Figure 4, we can see that a is the highest occupied molecular orbital (HOMO) after... 

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