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 inthe largest.)1.A.Electrons in a cyclic conjugated system. 18B.The compound is (a, aa, or na) a2.A.Electrons in a cyclic conjugated system. 10B.The compound is (a, aa, or na) na

Step 1:Huckel's Rule states that a compound will display aromaticity if it has the following…

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 19CTQ

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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
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. 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'
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
3. Evaluate the following related species which are all planar or nearly so. One is aromatic, one First determine the number of p-n electrons available in each, antiaromatic, and one is non-aromatic. then tell which is aromatic, which anti-aromatic, which non-aromatic. H H C5H5 C5H6 C5H5* p-n electrons? arom/anti-arom/non-arom
| Determine whether the following molecules are aromatic (A), non-aromatic а) (NA), or anti-aromatic (AA). Please provide your answer on the line below each molecule. Additionally, include the total number of conjugated p-orbitals in each molecule (not pi- electrons!) conj. p-orbitals - conj. p-orbitals - conj. p-orbitals conj. p-orbitals
5. Consider each compound below. Note the number of electrons participating in the TT system for each compound and indicate if it is aromatic, anti-aromatic or not aromatic (assume planarity for all molecules). .N. TT electrons TT electrons TT electrons TT electrons Aromatic? Aromatic? Aromatic? Aromatic?
5. Which of the following molecules is aromatic or anti-aromatic? Support your claim with an MO diagram and checking the molecule against the rules of aromaticity. CH
can someone explain why this counts as fully conjugated? does the pos charge count as conjugation? I thought conjugation was sigma bond, pi bond, sigma bond, etc...
Which of the following criteria satisfies non-aromaticity? Choose whichever is applicable. (can be more than one answer) A. Continuous conjugation B. Noncontinuous conjugation C. Pi electrons are equal to 4n+2 D. Pi electrons are equal to 4n E. Planar geometry
3. Consider the compounds below and determine if they are aromatic, antiaromatic, or non-aromatic. In case of aromatic or anti-aromatic, please indicate number of I electrons in the respective systems. (Hint: 1. Not all lone pair electrons were explicitly drawn and you should be able to tell that the bonding electrons and lone pair electrons should reside in which hybridized atomic orbital 2. You should consider ring strain- flexibility and steric repulsion that facilitates adoption of aromaticity or avoidance of anti- aromaticity) H H N N: NH2 N Aromaticity (Circle) Aromatic Aromatic Aromatic Aromatic Aromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic nonaromatic nonaromatic nonaromatic nonaromatic nonaromatic aromatic TT electrons Me H Me Aromaticity (Circle) Aromatic Aromatic Aromatic Aromatic Aromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic nonaromatic nonaromatic nonaromatic nonaromatic nonaromatic aromatic πT electrons H HH…
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!

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