(Answered) For the compounds A-E below, predict how many different sets of proton signals you should see in the NMR (label each different H set with a,b,c,...

For the compounds A-E below, predict how many different sets of proton signals you should see in the NMR (label each different H set with a,b,c,...

1. For the compounds A-E below, predict how many different sets of proton signals you should see in the NMR (label each different H set with a,b,c, etc. and indicate the relative total intensity of the different signals).       2. Show the structure of the bromobutane isomer responsible for the NMR spectrum below. Assign the 4 signals to the structure. (Hint: you may want to sketch out structures of the 4 possible C4H9Br isomers)      3.    Predict the approximate (+/-1 ppm) position of each of the different H signals in the molecules below in ppm relative to TMS (note: C6H5 = a phenyl group) 4. Predict the splitting patterns for compounds B-C above (e.g., A has 3 singlets-no splitting)                                                                                                            5.  The nmr spectrum shown fits which of the following compounds the best?1.

 

For the compounds A-E below, predict how many different sets of proton signals

 

you should

 

see in the NMR (label each different H set with a,b,c, etc. and indicate the relative total

 

intensity of the different signals).

 

A) (CH

 

3

 

)

 

2

 

C=CH

 

2

 

B)

 

(CH

 

3

 

)

 

2

 

CHOH

 

C)

 

CH

 

3

 

CHBrCH

 

2

 

CH

 

3

 

D)

 

H

 

3

 

C

 

H

 

H

 

CH

 

3

 

a

 

b

 

[

 

e.g., 2 sets, a & b in ratio of 6:2] 2. Show the structure of the bromobutane isomer responsible for the NMR spectrum below. Assign the 4 signals to the structure. (Hint: you may want to sketch out structures of the 4 possible C 4 H 9 Br isomers) NMR of C 4 H 9 Br 3. Predict the approximate (+/-1 ppm) position of each of the different H signals in the molecules below in ppm relative to TMS (note: C 6 H 5 = a phenyl group) A) CH 3 OC 6 H 5 B) ClCH 2 CH 2 CO 2 H C) CH 3 CH 2 C=O a b a b c a b H c 4. Predict the splitting patterns for compounds B-C above (e.g., A has 3 singlets-no splitting) 5. The nmr spectrum shown fits which of the following compounds the best? H 3 C CH 2 O CH 3 H 3 C CH 2 C CH 3 O H 3 C CH 2 C O O CH 3 H 3 C CH 2 O C CH 3 O a) b) c) d) Assign signals to the structure you choose . /tutors-problems/Business/10716152 10716152 I need assistance with a research paper for the topic barriers of communication /tutors-problems/Business/10716156 10716156 What impact did the evolving frontier and its eventual closing have on the culture of texas? What role did Texas play in the agrarian revolt /tutors-problems/Business/10716158 10716158 Hi Can someone help me with this please. I just want to be sure Im on the right trackHOMEWORK 1 – ANDERSON ASSOCIATES Anderson Associates of Bridgebury, Connecticut, performs general construction work. In November 2016, the company had four jobs in progress: two twelve-family apartment houses, a gas station, and a four-store addition to the Rancho Shopping Center. 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