Five isomeric alkenes a-e each undergo catalytic hydrogenation to give 2-methylpentane. the ir spectra
1 answer
Question:
Five isomeric alkenes a-e each undergo catalytic hydrogenation to give 2-methylpentane. the ir spectra of these five alkenes have the following key absorptions (in cm-1): compound a: 912 (s), 994 (s), 1643 (s), 3077 (m) compound b: 833 (s), 1667 (w), 3050 (weak shoulder on c-h absorption) compound c: 714 (s), 1665 (w), 3010 (m) compound d: 885 (s), 1650 (m), 3086 (m) compound e: 967 (s), no absorption 1600-1700, 3040 (m) the alkene structures are given below. identify each compound.
Answers
Solution and Explanation:
Strong peak at 643cm−1 corresponds to alkene C=C stretching.Medium peak at 3077cm−1 corresponds =C-H stretching.
Strong peaks at 912cm−1 and 994cm−1 corresponds to alkene =C-H bending. This tells the alkene is monosubstituted.
2. Weak peak at 3077cm−1 corresponds =C-H stretching.
The compound shows strong peak at 833cm−1 corresponds to alkene =C-H bending and weak peak at 1667cm−1 corresponds to alkene C=C stretching. This tells the alkene is trisubstituted.
3. Weak peak at 1665cm−1 corresponds to alkene C=C stretching.
Medium peak at 3086cm−1 corresponds =C-H stretching.
Strong peaks at 714cm−1 corresponds to alkene =C-H bending. This tells the alkene is cis-disubstituted.
4. Medium peak at 1643cm−1 corresponds to alkene C=C stretching.
Medium peak at 3010cm−1 corresponds =C-H stretching.
Strong peaks at 885cm−1 corresponds to alkene =C-H bending. This tells the alkene is gem-dialkylsubstituted.
5. Medium peak at 1650cm−1 corresponds to alkene C=C stretching.
Medium peak at 3040cm−1 corresponds =C-H stretching.
Strong peaks at 967cm−1 corresponds to alkene =C-H bending. This tells the alkene is trans-disubstituted.
[tex]Five isomeric alkenes A–E each undergo catalytic hydrogenation to give 2-methylpentane. The IR spect[/tex]
Similar Solved Works
10 answers
What were the positive and negative effects of the columbian exchange? think about •disease •food
What were the positive and negative effects of the columbian exchange? think about •disease •food •livestock...
3 answers
What is 1 5/6+ 1/2? a) 14/6 b) 17/12 c) 17/6 d) 25/12
What is 1 5/6+ 1/2? a) 14/6 b) 17/12 c) 17/6 d) 25/12...
10 answers
How does the repetition in the poem affect the tone of the poem?Group of answer choicesThe repetition creates a slowly building
How does the repetition in the poem affect the tone of the poem? Group of answer choices The repetition creates a slowly building rhythm like a river heading towards a waterfall. The repetition is intentionally used to make the poem feel out of rhythm. The repetition creates a rhythm that is commonl...
3 answers
What are the important details in the brown v board of education?
What are the important details in the brown v board of education?...
10 answers
An amusement park sells child and adult tickets at a ratio of 8: 1. on saturday, they sold 147 more child tickets that adult
An amusement park sells child and adult tickets at a ratio of 8: 1. on saturday, they sold 147 more child tickets that adult tickets. how many tickets did the amusement park sell on saturday?...
4 answers
Who entrusted marco polo to carry out his business? a. genghis khan b. kublai khan c. urban ii
Who entrusted marco polo to carry out his business? a. genghis khan b. kublai khan c. urban ii...
5 answers
Soft drinks and a Chicken sandwichs
Soft drinks and a Chicken sandwichs [tex]Soft drinks and a Chicken sandwichs[/tex][tex]Soft drinks and a Chicken sandwichs[/tex]...
4 answers
1. Calculate the length ofdiagonal DB3. Calculate the Coordinates m, the midpoint of DB3. Calculatethe gradient of ADu. Prove
1. Calculate the length of diagonal DB 3. Calculate the Coordinates m, the midpoint of DB 3. Calculate the gradient of AD u. Prove that AD 5 Give а reason why parallelogram ABCD is a rectangle. 6. Defermine the equation of ke in the form 9 Write down , with reason, the courdinates of c. mxtc 1 ...
4 answers
Sandra and jim have been happily married for several years. sandra reports that she reaches orgasm fromintercourse
Sandra and jim have been happily married for several years. sandra reports that she reaches orgasm fromintercourse only about half of the time and wonders if something is "wrong" with her. sandra should a. seek treatment for inhibited orgasm disorder. b. have a medical exam. c. realize that her inhi...
11 answers
54:03Study the velocity vs. time graph shown.What is the displacement of the object from 2 seconds to6 seconds?Velocity vs. Time4
54:03 Study the velocity vs. time graph shown. What is the displacement of the object from 2 seconds to 6 seconds? Velocity vs. Time 4 m 8 m o 16 m 9 8 7 6 5 24 m Velocity (m/s) 2 4 5 6 3 Time (s)...
3 answers
Jeff has a reputation for shouting angrily while negotiating. in contrast, anita is known for her soft-spoken
Jeff has a reputation for shouting angrily while negotiating. in contrast, anita is known for her soft-spoken agreeable approach to negotiations. jeff is less likely to get the concessions he wants than anita....
8 answers
The midpoint of GH is M(4, -3) and the endpoint if G (-2,2). Find the coordinate of endpoint H
The midpoint of GH is M(4, -3) and the endpoint if G (-2,2). Find the coordinate of endpoint H...
3 answers
1. electrically charged atom or group of atoms formed by the loss or gain of electrons 2. the union between atoms by the interaction
1. electrically charged atom or group of atoms formed by the loss or gain of electrons 2. the union between atoms by the interaction of their electrons in the outermost orbit 3. atoms of elements or compounds interact to form at least one new compound 4. the number of electrons lost or gained to com...
3 answers
There are 3 teams of 18 employees working today. company policy says that we need to have 1 supervisor
There are 3 teams of 18 employees working today. company policy says that we need to have 1 supervisor for every 8 employees on the floor. we need...
6 answers
Which of the following can be modeled with an exponential function? select all that apply. a. height over time that a football
Which of the following can be modeled with an exponential function? select all that apply. a. height over time that a football is thrown across the field. b. the cost to attend universal studios increases by 1% each year. c. an endangered species population is decreasing by 12% each year. d. the di...
7 answers
Given: m <AEB = 45° <AEC is a right angle. Prove: E bisects <AEC. Proof: We are given that m <AEB = 45° and <AEC
Given: m <AEB = 45° <AEC is a right angle. Prove: E bisects <AEC. Proof: We are given that m <AEB = 45° and <AEC is a right angle. The measure of <AEC is 90° by the definition of a right angle. Applying the BLANK gives m <AEB + m <BEC = m <AEC. Applying the substitution...
3 answers
Hey I'm Chloe Can you Help Me, I will give Brainlest, Thank you :)Stefan sells Jin a bicycle for $104 and a helmet for $17. The total cost for
Hey I'm Chloe Can you Help Me, I will give Brainlest, Thank you :) Stefan sells Jin a bicycle for $104 and a helmet for $17. The total cost for Jin is 110 % of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by se...