/// <summary>
/// Verify that electrons can be assigned to any delocalised (aromatic)
/// bonds. This method is faster than doing a full kekulisation and allows
/// versification of aromatic structures without localising the bond Orders.
/// However the method of determining the Kekulé structure is very similar
/// and often is preferable to provide a molecule with defined bond Orders.
/// </summary>
/// <returns>electrons can be assigned</returns>
/// <seealso cref="Kekule"/>
public bool Assignable()
{
return(ElectronAssignment.Verify(this));
}
static void AssertUnassignable(string smi)
{
Assert.IsFalse(ElectronAssignment.Verify(Graph.FromSmiles(smi)));
}