Multiple Response Question Select the criteria for any compound to be considered aromatic. The structure must be cyclic with conjugated pi bonds. Each atom in the ring must have an unhybridized port O Delocalization of the pi electrons over the ring must decrease the electronic energy. Delocalization of the pi electrons over the ring must increase the electronic energy. The π network must contain 4n+ 2 electrons (where n is the number of pi orbitals). The TT network must contain 4n+ 2 electrons (where n is a whole number). The structure must be planar or nearly planar so that overlap of these p orbitals is effective. Each atom in the ring must only have sp2 hybridized orbitals

Multiple Response Question Select the criteria for any compound to be considered aromatic. The structure must be cyclic with conjugated pi bonds. Each atom in the ring must have an unhybridized port O Delocalization of the pi electrons over the ring must decrease the electronic energy. Delocalization of the pi electrons over the ring must increase the electronic energy. The π network must contain 4n+ 2 electrons (where n is the number of pi orbitals). The TT network must contain 4n+ 2 electrons (where n is a whole number). The structure must be planar or nearly planar so that overlap of these p orbitals is effective. Each atom in the ring must only have sp2 hybridized orbitals

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter21: Benzene And The Concept Of Aromaticity

Section: Chapter Questions

Problem 21.16P: Which of the molecules and ions given in Problem 21.15 are aromatic according to the Hckel criteria?...

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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
Answer the following questions for the non-aromatic compound. 1. is every compound cyclic? yes or no 2. is every compound conjugated? yes or no 3. is every atom with a p-orbital connected to atoms on both sides that have a p-orbital? yes or no 4. based on the orbital drawings, are all p-orbitals in the same plane? yes or no
Answer the following questions for the aromatic compound. 1. is every compound cyclic? yes or no 2. is every compound conjugated? yes or no 3. is every atom with a p-orbital connected to atoms on both sides that have a p-orbital? yes or no 4. Are all p-orbitals in the same plane? yes or no
Why isn't this compound aromatic? Doesn't it fit the 4n+2 rule where there is 6 pi electrons? Or is it not planar, which is why it is not aromatic?
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3) In the mid-1930s, the German theoretical chemist Erich Hückel developed a rule that dealt with the aromaticity of various compounds, which became known as the Hückel Rule. Which (parts) of the compounds listed below are aromatic? Justify your answer based on Hückel's rule. You can treat the rings separately or together as you wish.
Which of the following are consistent with the requirements for aromaticity?I. A system with delocalized p electrons in a ring.II. 4n p electrons in the ring.III. All the ring atoms must be carbons.IV. (4n + 2) p electrons in the ring. Give the answer why.
Wich of the following alternstives is responsible for the following structures to be non-aromatic? A) cyclic structure B)planarity C)hunckle rule D)conjugation E)none of the above
Which of the following statements is FALSE? Select one: a. Aromatics are compound that are conjugated. b. The Cs and Hs in an aromatic compound are equivalent. c. The pi electrons are delocalized around an aromatic ring. d. None of the statements is false.
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.
Describe the following molecules as aromatic,antiaromatic,ornon-aromatic. Hint: sometimes resonance structures can reveal hidden aromaticity...or antiaromaticity.
Under certain reaction conditions, 2,3-dibromobutane reacts with two equivalents of base to give three products, each of which contains two new p bonds. Product A has two sp hybridized carbon atoms, product B has one sp hybridized carbon atom, and product C has none. What are the structures of A, B, and C?