The reason of lone pair occupying at equatorial position should be described. Concept introduction: The electrons involved in bond formation for any compound are known as bond pair and the electrons remained unused in bonding are known as lone pairs. As per the VSEPR theory, any molecule should have minimum energy and minimum repulsion states. It means that, the bonds should be arranged in such manner which could minimize the electronic repulsion and stabilize the molecules. Further, the axial positions are the positions parallel to the axes and the equitorial positions are perpendicular to the axes and lie on the equator.
The reason of lone pair occupying at equatorial position should be described. Concept introduction: The electrons involved in bond formation for any compound are known as bond pair and the electrons remained unused in bonding are known as lone pairs. As per the VSEPR theory, any molecule should have minimum energy and minimum repulsion states. It means that, the bonds should be arranged in such manner which could minimize the electronic repulsion and stabilize the molecules. Further, the axial positions are the positions parallel to the axes and the equitorial positions are perpendicular to the axes and lie on the equator.
Solution Summary: The author explains that the lone pair is positioned at equatorial position rather than axial position, to minimize the electronic repulsion and stabilize the molecules.
16. The proton NMR spectral information shown in this problem is for a compound with formula
CioH,N. Expansions are shown for the region from 8.7 to 7.0 ppm. The normal carbon-13 spec-
tral results, including DEPT-135 and DEPT-90 results, are tabulated:
7
J
Normal Carbon
DEPT-135
DEPT-90
19 ppm
Positive
No peak
122
Positive
Positive
cus
и
124
Positive
Positive
126
Positive
Positive
128
No peak
No peak
4°
129
Positive
Positive
130
Positive
Positive
(144
No peak
No peak
148
No peak
No peak
150
Positive
Positive
してし
3. Propose a synthesis for the following transformation. Do not draw an arrow-pushing
mechanism below, but make sure to draw the product of each proposed step (3 points).
+ En
CN
CN
Show work..don't give Ai generated solution...
Chapter 7 Solutions
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