Which are true for the compound?Select the correct response(s):It is anti-aromatic because it has an open shell.It is aromatic because it has a fully conjugated system.It is aromatic because it is planar.It is anti-aromatic because it does not obey the Huckel rule.It is aromatic because it has a close shell.It is anti-aromatic it is not planar. HWhich are true for the compound?Select the correct response(s):It is anti-aromatic because it has an open shell.It is aromatic because it has a fully conjugated system.It is aromatic because it is planar.It is anti-aromatic because it does not obey the Huckel rule.It is aromatic because it has a close shell.

->open shell means there is unpaired electron present. Huckel's rule -> (4n+2)πe n= 0,1,2,3...…

H Which are true for the compound? Select the correct response(s): It is anti-aromatic because it has an open shell. It is aromatic because it has a fully conjugated system. It is aromatic because it is planar. It is anti-aromatic because it does not obey the Huckel rule. It is aromatic because it has a close shell.

H Which are true for the compound? Select the correct response(s): It is anti-aromatic because it has an open shell. It is aromatic because it has a fully conjugated system. It is aromatic because it is planar. It is anti-aromatic because it does not obey the Huckel rule. It is aromatic because it has a close shell.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter18: Aromaticity

Section: Chapter Questions

Problem 7CTQ

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In the blank for each molecule, enter A, B or C according to the code below: A = aromatic if planar Banti-aromatic if planar C=non-aromatic (does not matter if it is planar or not because other conditions for aromaticity or anti- aromaticity are not met) $0 $ blank 1 blank 2 blank 3 blank 4 blank 5 m blank 6 blank 7 blank 8 blank 9
Select the single best answer. Is the following compound aromatic? If it is not aromatic, select the answer which best states why it is not aromatic. It is not aromatic. It does not have 4n + 2 n electrons. It is aromatic. It is not aromatic. It is not planar. It is not aromatic. It is not completely conjugated. O O O
5) Indicate whether the following charged compounds are aromatic (A), anti-aromatic (AA) or non-aromatic (NA). A B C CH₂ Aromatic?
Identify the criteria which compounds must meet in order to be considered aromatic. (Select all apply, Points will be deducted for incorrect answers) Each atom in the ring must have an unhybridized p orbital Each atom in the ring must have an unhybridized s orbital The total number of pi electrons is 4n + 2 The structure must be cyclic The structure must be planar The total number of pi electrons is 4n Rank the following structures in order of decreasing stability C Most Stable 1 3 Least Stable 00000
6. Consider each compound below. Note the number of T electrons in the ring in each compound and indicate if it is aromatic or not aromatic (assume planarity for all molecules). B. TT electrons TT electrons TT electrons Aromatic? Aromatic? Aromatic?
2. Nicotine contains two heterocyclic rings. a) Fill in the blanks regarding the N atom of each ring. b) Circle the ring that is aromatic and explain what makes it aromatic. hybridization of N: orbital of lone pair: H nicotine hybridization of N: orbital of lone pair:
Indicate whether or not each of the structures is considered to be aromatic. NH Which is true? O A is aromatic, B is not. B is aromatic, A is not. Both A and B are aromatic. O A and B are not aromatic.
Which compound is NOT aromatic 0000 A B C H Ꭰ
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
Classify each of the following molecules as aromatic, antiaromatic, or nonaromatic. O aromatic O antiaromatic O nonaromatic O aromatic O antiaromatic O nonaromatic O aromatic O antiaromatic O nonaromatic
Serotonin contains an aromatic heterocycle called an indole. a) Fill in the blanks regarding the N atom of the indole. b) Circle the entire aromatic heterocycle and explain what makes it aromatic. НО. serotonin NH₂ hybridization of N: orbital of lone pair:
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?