Construct a Lewis electron-dot structure that describes the bonding in a simple molecule or ion, including an example that contains lone pair electrons. Define bond order, and draw electron-dot structures for molecules with double and triple bonds. Explain the meaning of a "resonance hybrid";...
The Lewis structures illustrated so far have been selected for their simplicity. A number of elaborations are given below. Resonance There is sometimes anambiguityin the location of double bonds. This ambiguity is illustrated by the Lewis structure forozone(O3). The following are two possible struc...
Thus, the magnitude of the charge transfer in the Lewis electron-pair system determines the stability trends of dative bonds with varying solvent polarity. We used molecular dynamics (MD) simulations based on an explicit solvent model, which is considered more reliable, to verify the results ...
Both structures converged to a hydrogen bonding interaction. ΔE = −1.2 kcal·mol−1 in 1a and a methyl acts as electron donating site; i.e., an O–H···C hydrogen bonding interaction. This can be understood due to the polarization in ethane, where both C’s are most ...
They are synthesized through the condensation between amines and aldehydes (which are both readily accessible) in presence of a Bronsted or Lewis acid catalyst. Although their stability towards hydrolysis is higher, the presence of strong nucleophiles is still dangerous for the maintenance of their ...