Resonance structures are the Lewis structures which have the same placement of atoms but different in the arrangement of electrons. A hybrid of the contributing structures represents the real structure of the molecule and is known as resonance hybrid.
Resonance structures can be formed when the double bonds are in conjugation. It also occurs when the double bond is separated by a lone pair through a single bond. Only the electrons (pi electrons and lone pairs) will move, atoms never move. So, the number of electrons in the molecule does not change.
A double headed arrow () is used to represent different resonating structures.
More stable resonating structures have negative charge on more electronegative atom.
The curved arrow shows the movement of the electron pair. Curved arrow is represented as:
The tail of the arrow begins at an electron pair and the head represents that moving of an electron pair.
More stable resonance structure is known as major contributor and the less stable resonance structures are known as minor contributors.
The resonance structures in which every atom has an octet will be more stable.
(1)
The curved arrow representation is as follows:
[(1)]
(2)
Part a
The resonance structure is as follows:
Part b
Draw the curved arrows as follows:
[Part b]
Ans:Thus, the curved arrow representation for the provided resonance structure is as follows:
Part aThus, the predominant resonance contributor is as follows:
Part bExplanationThus, the curved arrow representation for the resonance contributors is as follows:
1. Add curved arrows to both structures to show the delocalization of electron pairs needed to...
Add curved arrows to both structures to show the delocalization of electron pairs needed to form the other resonance contributor.
Draw a major resonance structure for the following enolate. Use curved arrows in both structures to show the delocalization of electron pairs. Include lone pairs of electrons, formal charges, and hydrogen atoms. Draw a major resonance structure for the following enolate. Use curved arrows in both structures to show the delocalization of electron pairs. Include lone pairs of electrons, formal charges, and hydrogen atoms.
Need clear drawing. 1) Draw the other significant resonance contributor for the following compound; include lone pairs of electrons, formal charges, and hydrogen atoms. 2) Add curved arrows to both structures to show the delocalization of electron pairs.
Add curved arrows to both resonance structures of nitromethane to show the delocalization of electron pairs. A curved arrow starts at an electron source (lone pair or bond) and points to an electron sink.
(a) Draw two resonance structures of the cation shown, shifting only one clectron pair in each step. Be sure to include the formal charge on structures B and C. Only move one double bond. Each resonance structure should contain only one charge -a positive charge. (b) Use curved-arrow notation on the given structure A to show its conversion to structure B, and then on structure B to show its conversion to structure C. 1. Draw curved arrows to show conversion of resonance...
the following reaction: Add curved arrows for the first step. Draw both the organic and inorganic intermediate species. Include nonbonding electrons and charges, where applicable. Include hydrogen atoms Incorrect Markovnikov's rule describes where H+ adds. When H+ adds to one carbon of the alkene, the other alkene carbon becomes charged. Include both the inorganic and organic intermediates, be sure that all charges and lone pairs are drawn, and check that there are three carbon atoms present.
Part A Draw the resonance structure indicated by the curved arrows. Assign formal charges. HH CH Н Draw the molecule by placing atoms on the canvas and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure. OOO OOO O OOOOO
EO 3- resonance structures, formal charges, stability 1. Draw ONE possible significant additional resonance structure for each of the following ions. Use curved arrows to show the movement of electrons that creates each new resonance structure. (Hint: lone pairs are not shown. Start by drawing in all one pairs, and include all lone pairs and formal charges in your additional resonance structure.) Page 1 of 3 2. For each structure, draw the resonance structure that is indicated by the curved...
Draw the curved arrows and the resulting resonance structure for the following structures. Include lone pairs and charges in your structure. Edit CH
Complete the electron-pushing mechanism for the following base-promoted hydrolysis of an ester. Add atoms, bonds, nonbonding electron pairs (lone pairs), charges, and curved arrows.