Questions: Compare these two structures. O=C=N: O=C=N Determine whether the two represent resonance contributors of a single species or depict different substances. If two structures are not resonance explain why. Select the single best answer. The two structures are resonance contributors of the same species. The two structures are not resonance contributors because they contain bond orders having integer values. The two structures are not resonance contributors because they contain different numbers of electrons. The two structures are not resonance contributors because they have different arrangements of atoms. The two structures are not resonance contributors because they contain different bond orders. The two structures are not resonance contributors because each structure is present in its most stable (lowest energy) configuration.

Compare these two structures. O=C=N: O=C=N Determine whether the two represent resonance contributors of a single species or depict different substances. If two structures are not resonance explain why. Select the single best answer. The two structures are resonance contributors of the same species. The two structures are not resonance contributors because they contain bond orders having integer values. The two structures are not resonance contributors because they contain different numbers of electrons. The two structures are not resonance contributors because they have different arrangements of atoms. The two structures are not resonance contributors because they contain different bond orders. The two structures are not resonance contributors because each structure is present in its most stable (lowest energy) configuration.
Transcript text: Compare these two structures. \[ : \ddot{\mathrm{O}}-\mathrm{C} \equiv \mathrm{N}: \quad \ddot{\mathrm{O}}=\mathrm{C}=\dot{\mathrm{N}} \] Determine whether the two represent resonance contributors of a single species or depict different substances. If two structures are not resonance explain why. Select the single best answer. The two structures are resonance contributors of the same species. The two structures are not resonance contributors because they contain bond orders having integer values. The two structures are not resonance contributors because they contain different numbers of electrons. The two structures are not resonance contributors because they have different arrangements of atoms. The two structures are not resonance contributors because they contain different bond orders. The two structures are not resonance contributors because each structure is present in its most stable (lowest energy) configuration.
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Solution

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Solution Steps

Step 1: Identify the Structures

First, we need to identify the given structures:

  1. \(: \ddot{\mathrm{O}}-\mathrm{C} \equiv \mathrm{N}:\)
  2. \(\ddot{\mathrm{O}}=\mathrm{C}=\dot{\mathrm{N}}\)
Step 2: Analyze Bond Orders
  • In the first structure, the bond orders are:
    • O-C: single bond
    • C-N: triple bond
  • In the second structure, the bond orders are:
    • O=C: double bond
    • C=N: double bond
Step 3: Check for Resonance Criteria

Resonance structures must:

  1. Have the same arrangement of atoms.
  2. Have the same number of electrons.
  3. Differ only in the arrangement of electrons (bonding and lone pairs).
Step 4: Compare the Structures
  • The first structure has a single bond between O and C and a triple bond between C and N.
  • The second structure has double bonds between O and C, and C and N.
  • The bond orders are different in the two structures.

Final Answer

The two structures are not resonance contributors because they contain different bond orders.

\(\boxed{\text{The two structures are not resonance contributors because they contain different bond orders.}}\)

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