A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation).B. Specify whether the species is "a"-aromatic, "aa"-anti-aromatic, or "na"-non-aromatic (neither aromatic nor anti-aromatic).(Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in thelargest.)CH31.A.Electrons in a cyclic conjugated system.B.The compound is (a, aa, or na)2.A.Electrons in a cyclic conjugated system.B.The compound is (a, aa, or na)

Step 1:Aromaticity: Aromaticity refers to a property exhibited by certain cyclic molecules.…

Answered: A. Determine the number of electrons in…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter18: Aromaticity

Section: Chapter Questions

Problem 6CTQ

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Either the reactant (X) or the major organic product is missing from the equation below. Draw the missing compound. H3C CH3 Pd/C X + H2 CH;CHCHCHCH3 ČH3 • You do not have to consider stereochemistry. • In the case of a missing reactant, there may be more than one answer. If so, draw all possible reactants, • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu.
A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation).B. Specify whether the species is "a"-aromatic, "aa"-anti-aromatic, or "na"-non-aromatic (neither aromatic nor anti-aromatic).(Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in the largest.)
A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation). B. Specify whether the species is "a"-aromatic, "aa"-anti-aromatic, or "na"-non- aromatic (neither aromatic nor anti-aromatic). (Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in the largest.) 1. A.Electrons in a cyclic conjugated system. B. The compound is (a, aa, or na) o A.Electrons in a cyclic conjugated system. B.The compound is (a, aa, or na) 2. Previous Next
2. A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation). B. Specify whether the species is "a"-aromatic, "aa"-anti-aromatic, or "na"-non-aromatic (neither aromatic nor anti-aromatic). (Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in the largest.) CH3 a. b. C. d. e. f. i. g. h. :0: IZ :O: N: 3. Specify the number of isomers possible for the following molecules. a. Dichloronitrobenzene? b. An aromatic compound with formula C,H,Cl C. Tribromobenzoic acid
1. Label the following rings as aromatic, anti-aromatic, or non-aromatic. Briefly indicate your reasoning for any molecules that are not aromatic. 2. label the hybridization at every non-metallic heteroatom. Н BrMg HN H2N. N. 'N' B. `H. Н N'
[Review Topics] For each of the species below, identify any cyclic conjugated system, then: A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation). B. Specify whether the species is "a"-aromatic, "aa"-anti-aromatic, or "na"-non-aromatic (neither aromatic nor anti-aromatic). (Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in the largest.) 1. A.Electrons in a cyclic conjugated system. B.The compound is (a, aa, or na) 2. A.Electrons in a cyclic conjugated system. B.The compound is (a, aa, or na) Submit Answer Retry Entire Group Show Hint [References] 7 more group attempts remaining
1. Is the molecule below aromatic? If so, circle the atoms that are part of the aromaticity. Also indicate the orbital that each lone pair occupies. .N. H2N
2. Find aromatic, antiaromatic and non-aromatic species among the following. Draw an energy diagram of the following species, where the species should be on the x-axis and energy will be on the y-axis.
[Review Topics] [References) For each of the species below, identify any cyclic conjugated system, then: A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation). B. Specify whether the species is "a"-aromatic, "aa"-anti-aromatic, or "na"-non-aromatic (neither aromatic nor anti-aromatic). (Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in the largest.) 1. A.Electrons in a cyclic conjugated system. 6 B.The compound is (a, aa, or na) a 2. A.Electrons in a cyclic conjugated system. 8 B.The compound is (a, aa, or na) aa Submit Answer Retry Entire Group 4 more group attempts remaining Previous
Circle any of the following which you think are aromatic systems. For the ones that are aromatic systems, give the "n" (Huckel number.) It's possible tk have more than one. Thank you!
Question 1: Aromaticity a. Draw a fully labelled MO energy diagram for each (match clearly). b. Determine criteria for the following molecules that aligns with the criteria for aromaticity. I will NOT accept anything outside the list done in class – NOTHING YOU HEARD FROM SOMEONE OTHER THAN ME, READ OR SAW ONLINE. List clearly for each molecule the way we did in class. c. Determine if the molecule are aromatic or antiaromatic based on your list. d. Of the two molecules, which would be most reactive in an electrophilic addition? Why?
1. Draw an aromatic ring, which contains only hydrogens and 5 carbons; add charges and lonepairs if needed 2. Draw a non-aromatic ring which contains only hydrogen and 5 carbons and have conjugateddouble bonds; add charges and lone pairs if needed.

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