Concept explainers
(a)
Interpretation:
All the resonance structures of the given specie are to be drawn, with curved arrows indicating which electrons are shifted. The resonance hybrid of the specie is to be drawn.
Concept introduction:
Resonance structures are alternate valid Lewis structures in which pi electrons and/or lone pair electrons are distributed in different positions. Resonance structures must follow the usual rules of Lewis structures. The connectivity of the atoms must remain the same.
The resonance hybrid is a weighted average of all resonance structures.
(b)
Interpretation:
All the resonance structures of the given specie are to be drawn, with curved arrows indicating which electrons are shifted. The resonance hybrid of the specie is to be drawn.
Concept introduction:
Resonance structures are alternate valid Lewis structures in which pi electrons and/or lone pair electrons are distributed in different positions. Resonance structures must follow the usual rules of Lewis structures. The connectivity of the atoms must remain the same.
The resonance hybrid is a weighted average of all resonance structures.
(c)
Interpretation:
All the resonance structures of the given specie are to be drawn, with curved arrows indicating which electrons are shifted. The resonance hybrid of the specie is to be drawn.
Concept introduction:
Resonance structures are alternate valid Lewis structures in which pi electrons and/or lone pair electrons are distributed in different positions. Resonance structures must follow the usual rules of Lewis structures. The connectivity of the atoms must remain the same.
The resonance hybrid is a weighted average of all resonance structures.
(d)
Interpretation:
All the resonance structures of each of the given specie are to be drawn, with curved arrows indicating which electrons are shifted. The resonance hybrid of the specie is to be drawn.
Concept introduction:
Resonance structures are alternate valid Lewis structures in which pi electrons and/or lone pair electrons are distributed in different positions. Resonance structures must follow the usual rules of Lewis structures. The connectivity of the atoms must remain the same.
The resonance hybrid is a weighted average of all resonance structures.
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Chapter 1 Solutions
ORG CHEM W/ EBOOK & SW5 + STUDY GUIDE
- The curved arrow notation introduced in Section 1.6 is a powerful method used by organic chemists to show the movement of electrons not only in resonance structures, but also in chemical reactions. Since each curved arrow shows the movement of two electrons, following the curved arrows illustrates what bonds are broken and formed in a reaction. Consider the following three-step process. (a) Add curved arrows in Step [1] to show the movement of electrons. (b) Use the curved arrows drawn in Step [2] to identify the structure of X. X is converted in Step [3] to phenol and HCl.arrow_forward2. On the first drawing on the left for each structure below, draw the electron pushing arrows needed to produce the resonance structure on the right. The structures are bond-line; you need to draw the implied lone pair electrons that participate in resonance. (b) (a) Ⓒarrow_forwardDraw all reasonable resonance structures for the following compounds. Be sure to show the proper arrows to indicate electron movementarrow_forward
- Assignment 3.16 Which of these molecules are polar? Show the direction of the molecular dipole by using an arrow with a crossed tail. (a) H2S (b) HCN (c) C2H6arrow_forwardDraw a reasonable resonance structure for the following species. Draw out all bonds to the oxygen atom in your answer.arrow_forwardCurved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the resonance hybrid contributor. Include all lone pairs and charges as appropriate. Drawing Ⓒarrow_forward
- Please draw a more stable resonance structure for the following molecule. Use a curved arrow to show how to transform the original structure to the new one and please specify charges.arrow_forwardThe curved arrow notation introduced in Section 1.6B is a powerfulmethod used by organic chemists to show the movement of electronsnot only in resonance structures, but also in chemical reactions.Because each curved arrow shows the movement of two electrons,following the curved arrows illustrates what bonds are broken andformed in a reaction. Consider the following three-step process. (a) Addcurved arrows in Step [1] to show the movement of electrons. (b) Use thecurved arrows drawn in Step [2] to identify the structure of X. X isconverted in Step [3] to phenol and HCl.arrow_forwardIdentify all functional groups that are present in strychnine, a highly toxic alkaloid used as a pesticide to kill rodents, whose line structure is shown here. What compound class is characteristic of each of those functional groups? Strychninearrow_forward
- Draw resonance structures for the following compound:Add curved arrow(s) to show resonance using one of the five patterns, and modify the second structure given to draw the new resonance structure. Include relevant formal charges in your structure. Use the + and - tools to add/remove charges to an atom, and use the single bond tool to add/remove double bonds.arrow_forwardConsider the molecule below. (1) (2) What is the geometry or shape at atom (1)? What is the geometry or shape at atom (2)?arrow_forward16. Which of the following structures is the CORRECT resonance structure of the following. molecule: (A) (B) (C) (D) CH3- CH₂ CH3 -H CH₂CH3 CH₂CH-CH₂ CH3 CH3arrow_forward
Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning