Cyclopropane ( C 3 H 6 ) has the shape of a triangle in which a C atom is bonded to two H atoms and two other C atoms at each corner. Cubane ( C 8 H 8 ) has the shape of a cube in which a C atom is bonded to one H atom and three other C atoms at each comer. (a) Draw Lewis structures of these molecules. (b) Compare the CCC angles in these molecules with those predicted for an s p 3 − hybridized C atom. (c) Would you expect these molecules to be easy to make?
Cyclopropane ( C 3 H 6 ) has the shape of a triangle in which a C atom is bonded to two H atoms and two other C atoms at each corner. Cubane ( C 8 H 8 ) has the shape of a cube in which a C atom is bonded to one H atom and three other C atoms at each comer. (a) Draw Lewis structures of these molecules. (b) Compare the CCC angles in these molecules with those predicted for an s p 3 − hybridized C atom. (c) Would you expect these molecules to be easy to make?
Solution Summary: The author explains that the Lewis structures of cyclopropane and cubane are to be drawn and their bond angles with a mathrmsp3 hybridized carbon atom
Cyclopropane
(
C
3
H
6
)
has the shape of a triangle in which a C atom is bonded to two H atoms and two other C atoms at each corner. Cubane
(
C
8
H
8
)
has the shape of a cube in which a C atom is bonded to one H atom and three other C atoms at each comer. (a) Draw Lewis structures of these molecules. (b) Compare the CCC angles in these molecules with those predicted for an
s
p
3
−
hybridized C atom. (c) Would you expect these molecules to be easy to make?
Methyl isocyanate, CH3NCO, is used in the manufacture of insecticides, such as carbaryl (Sevin). In the CH3NCO molecule, the three H atoms and the O atoms are terminal atoms and the two C and one N atom are the central atoms. Draw the Lewis structure of this molecule, then predict the molecular geometry and indicate the various bond angles.
Electrons in bonds are negatively charged and therefore repel each other. If you had a molecule of formula AB 2 , with A being the central atom, what would you predict the 3D shape to be to allow maximum distance between the two B atoms bonded to A?
(a) Methane (CH4) and the perchlorate ion (ClO4- ) are bothdescribed as tetrahedral. What does this indicate about theirbond angles? (b) The NH3 molecule is trigonal pyramidal, while BF3 is trigonal planar. Which of these molecules is flat?
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell