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) more proup attenpts remaning Retry Entire Group Submit Answer

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) more proup attenpts remaning Retry Entire Group Submit Answer

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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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

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)
more proup attenpts remaning
Submit Answer
Retry Entire Group

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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 ualess 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) HN 2. Uracil A.Electrons in a cyclic conjugated system. B.The compound is (a, aa, or na Window
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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.)
[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
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[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. 3 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 9 more group attempts remaining 4F4 Show Hint Cengage Learning | Cengage Technical Support DII FS 55 96 F6 & 7 PrtScn Home F7 F8 F9 T Y U ( 8 9 O End F10 G H J K L N M ) O Previous Next Email Instructor Save and Exit PgUp PgDn F11 F12 P { ว 1 Ins Del Backspa
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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
Give detailed Solution with explanation needed of both with structures...don't give Handwritten answer
2. Draw two separate Frost circle (polygon-in-a-circle) diagrams for both the cycolopropenyl cation and anion shown below. Label the respective orbitals as bonding or anti-bonding (do not show shaded orbital pictures, only show the MO energy levels and -electrons). In both cases provide a rationale indicating whether the compound is aromatic, anti- aromatic, or non-aromatic. H E E H