Organic Chemistry - Standalone book
10th Edition
ISBN: 9780073511214
Author: Francis A Carey Dr., Robert M. Giuliano
Publisher: McGraw-Hill Education
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Chapter 27.1, Problem 2P
Interpretation Introduction
Interpretation:
A resonance form for a guanine in which the six-membered ring has an electronic structure analogous to benzene is to be drawn along with the formal charges. The three contributors for uracil that involve amide resonance are to be drawn.
Concept Introduction:
A way of describing the delocalized electrons present in certain molecules is termed as resonance.
The bonding in these cases cannot be expressed by a single Lewis structure. Resonance structure is a blend of two or more Lewis structures.
Resonance structures are represented by a double-headed arrow between the structures.
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Part VII. The H-NMR of a compound with molecular formula C5 H 10 O2 is given below.
Find the following:
(a) The no. of protons corresponding to each signal in the spectra
(6) Give the structure of the compound and assign the signals to each
proton in the compound.
a
70.2
Integration Values
C5H10O2
b
47.7
C
46.5
d
69.5
3.6 3.5
3.4 3.3 3.2 3.1 3.0
2.9 2.8
2.7
2.6 2.5
2.4 2.3 2.2 2.1 2.0
Chemical Shift (ppm)
1.9
1.8
1.7 1.6
1.5
1.4 1.3 1.2
1.1 1.0
0.9 0.8
Part 111. 1 H-NMR spectrum of a compound with integration values in red is given below.
Answer the following:
(a) write the signals in the 'H-NMR spectrum to the corresponding protons on the structure
of the molecule below.
(b) Identify the theoretical multiplicities for each proton in the compound. Also give the possible.
complex splitting patterns assuming J values are not similar.
там
Br
22
2
3
6
4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0
Chemical Shift (ppm)
ra.
Br
2
3
6
6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Chemical Shift (ppm)
2
2
Br
7.3
7.2
7.1
7.0 6.9
6.7 6.6 6.5
6.4
6.3
6.2
6.1
6.0
Chemical Shift (ppm)
5.9
5.8 5.7
5.5 5.4 5.3 5.2
5.0 4.9
1600°
1538°C
1493°C
In the diagram, the letter L indicates
that it is a liquid. Indicate its
components in the upper region
where only L is indicated.
The
iron-iron carbide phase
diagram.
Temperature (°C)
1400
8
1394°C
y+L
1200
2.14
y, Austenite
10000
912°C
800a
0.76
0.022
600
400
(Fe)
a, Ferrite
Composition (at% C)
15
1147°C
a + Fe3C
2
3
Composition (wt% C)
L
2500
4.30
2000
y + Fe3C
727°C
1500
Cementite (Fe3C)
1000
4
5
6
6.70
Temperature (°F)
Chapter 27 Solutions
Organic Chemistry - Standalone book
Ch. 27.1 - Problem 27.1 Write a structural formula for the...Ch. 27.1 - Prob. 2PCh. 27.1 - Prob. 3PCh. 27.2 - Prob. 4PCh. 27.3 - Prob. 5PCh. 27.3 - Prob. 6PCh. 27.5 - Prob. 7PCh. 27.5 - Prob. 8PCh. 27.5 - Prob. 9PCh. 27.6 - Prob. 10P
Ch. 27.7 - Prob. 11PCh. 27.9 - Prob. 12PCh. 27.12 - 27.13 Modify Figure 27.12 so that it corresponds...Ch. 27.13 - Prob. 14PCh. 27 - Prob. 15PCh. 27 - Prob. 16PCh. 27 - Prob. 17PCh. 27 - Nebularine is a toxic nucleoside isolated from a...Ch. 27 - Prob. 19PCh. 27 - The 5-nucleotide of inosine, inosinic acid...Ch. 27 - Prob. 21PCh. 27 - (a) The two most acidic hydrogens of uracil have...Ch. 27 - The phosphorylation of -D-glucopyranose by ATP...Ch. 27 - When 6-chloropurine is heated with aqueous sodium...Ch. 27 - Prob. 25PCh. 27 - Prob. 26PCh. 27 - Prob. 27PCh. 27 - Prob. 28PCh. 27 - Oligonucleotide Synthesis In Section 27.6 we noted...Ch. 27 - Oligonucleotide Synthesis In Section 27.6 we noted...Ch. 27 - Oligonucleotide Synthesis In Section 27.6 we noted...Ch. 27 - Oligonucleotide Synthesis In Section 27.6 we noted...Ch. 27 - Oligonucleotide Synthesis In Section 27.6 we noted...Ch. 27 - Oligonucleotide Synthesis In Section 27.6 we noted...
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