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C. Alkenes 1. Construct a model of ethene (C₂H4) by joining two carbon atoms with a double bond. Toggle between skeletal and full Lewis structures by clicking the C-H tool. Note the trigonal planar geometry of the bonds around each carbon atom, and that the carbon-carbon double bond has restricted rotation. Observe that the six atoms in ethene all lie in the same plane, and the double bond is a fixed geometry within the molecule. 2. Add a CH3- group to each of the doubly-bonded carbons to create a four-carbon alkene with the double bond between carbons 2 and 3. Note that the CH3- groups can be attached in two different ways: Both CH3- groups on the same side of the fixed geometry of the double bond. ● The two CH3- groups on opposite sides of the double bond. Click the broom to tidy up the structures; convert each to a ball-and-stick model by clicking the 2D to 3D tool. Take screen prints of your MolView structures, showing both the Lewis structure and 3D model. Below, draw structures for these molecules which clear show the geometry of the hydrogen atoms and CH 3- groups attached to the carbons of the double bond. Then write the IUPAC name for each structure, keeping in mind that the name should specifically describe not only the number of each type of atom and how they are connected, but also the arrangement of those atoms in space. Model 1 (cis stereoisomer) IUPAC Name: IUPAC Name: Model 2 (trans stereoisomer)

C. Alkenes 1. Construct a model of ethene (C₂H4) by joining two carbon atoms with a double bond. Toggle between skeletal and full Lewis structures by clicking the C-H tool. Note the trigonal planar geometry of the bonds around each carbon atom, and that the carbon-carbon double bond has restricted rotation. Observe that the six atoms in ethene all lie in the same plane, and the double bond is a fixed geometry within the molecule. 2. Add a CH3- group to each of the doubly-bonded carbons to create a four-carbon alkene with the double bond between carbons 2 and 3. Note that the CH3- groups can be attached in two different ways: Both CH3- groups on the same side of the fixed geometry of the double bond. ● The two CH3- groups on opposite sides of the double bond. Click the broom to tidy up the structures; convert each to a ball-and-stick model by clicking the 2D to 3D tool. Take screen prints of your MolView structures, showing both the Lewis structure and 3D model. Below, draw structures for these molecules which clear show the geometry of the hydrogen atoms and CH 3- groups attached to the carbons of the double bond. Then write the IUPAC name for each structure, keeping in mind that the name should specifically describe not only the number of each type of atom and how they are connected, but also the arrangement of those atoms in space. Model 1 (cis stereoisomer) IUPAC Name: IUPAC Name: Model 2 (trans stereoisomer)

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter23: Carbon: Not Just Another Element
Section: Chapter Questions
Problem 58PS
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Draw two more molecules that are structural isomers of one another, as well as structural isomers of the cis/trans pair above. Then write the IUPAC name for each structure. Model 3 (structural isomer) IUPAC Name: IUPAC Name: Model 4 (structural isomer)
Transcribed Image Text:Draw two more molecules that are structural isomers of one another, as well as structural isomers of the cis/trans pair above. Then write the IUPAC name for each structure. Model 3 (structural isomer) IUPAC Name: IUPAC Name: Model 4 (structural isomer)
C. Alkenes 1. Construct a model of ethene (C₂H4) by joining two carbon atoms with a double bond. Toggle between skeletal and full Lewis structures by clicking the C-H tool. Note the trigonal planar geometry of the bonds around each carbon atom, and that the carbon-carbon double bond has restricted rotation. Observe that the six atoms in ethene all lie in the same plane, and the double bond is a fixed geometry within the molecule. 2. Add a CH3- group to each of the doubly-bonded carbons to create a four-carbon alkene with the double bond between carbons 2 and 3. Note that the CH3- groups can be attached in two different ways: Both CH3- groups on the same side of the fixed geometry of the double bond. The two CH3- groups on opposite sides of the double bond. Click the broom to tidy up the structures; convert each to a ball-and-stick model clicking the 2D to 3D tool. Take scr prints of your MolView structures, showing both the Lewis structure and 3D model. ● Below, draw structures for these molecules which clear show the geometry of the hydrogen atoms and CH3- groups attached to the carbons of the double bond. Then write the IUPAC name for each structure, keeping in mind that the name should specifically describe not only the number of each type of atom and how they are connected, but also the arrangement of those atoms in space. Model 1 (cis stereoisomer) IUPAC Name: IUPAC Name: Model 2 (trans stereoisomer)
Transcribed Image Text:C. Alkenes 1. Construct a model of ethene (C₂H4) by joining two carbon atoms with a double bond. Toggle between skeletal and full Lewis structures by clicking the C-H tool. Note the trigonal planar geometry of the bonds around each carbon atom, and that the carbon-carbon double bond has restricted rotation. Observe that the six atoms in ethene all lie in the same plane, and the double bond is a fixed geometry within the molecule. 2. Add a CH3- group to each of the doubly-bonded carbons to create a four-carbon alkene with the double bond between carbons 2 and 3. Note that the CH3- groups can be attached in two different ways: Both CH3- groups on the same side of the fixed geometry of the double bond. The two CH3- groups on opposite sides of the double bond. Click the broom to tidy up the structures; convert each to a ball-and-stick model clicking the 2D to 3D tool. Take scr prints of your MolView structures, showing both the Lewis structure and 3D model. ● Below, draw structures for these molecules which clear show the geometry of the hydrogen atoms and CH3- groups attached to the carbons of the double bond. Then write the IUPAC name for each structure, keeping in mind that the name should specifically describe not only the number of each type of atom and how they are connected, but also the arrangement of those atoms in space. Model 1 (cis stereoisomer) IUPAC Name: IUPAC Name: Model 2 (trans stereoisomer)
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