CHEM SKETCH ASSIGNMENT:
Save your CHEMSKETCH page and e-mail it to me before you leave class today: byoung@livingston.org
PART I: Using CHEMSKETCH –
1.
Open CHEMSKETCH from the program menu.
2. In the top left corner, highlight the
tab.
3. Click on
. Then go to the page and click to build a carbon chain. Play with the program until you feel
comfortable building molecules. Try adding multiple bonds to the molecules by clicking on the bond.
4. To replace a carbon with a halogen: first put a carbon in the position that the halogen will occupy. Then click on
the halogen on the far left, and click again on the carbon being replaced.
5. To name molecules: select the molecule being named with the
button on the top left. (under structure).
Then click on the “volcano” to the right on the tool bar:
PART II: Creating and naming molecules.
Build each of the molecules listed below. Then name the molecules listed below to determine whether you built them
correctly. Copy and paste into a word document, using Ctrl C and Ctrl V, before moving to the next section.
a.
2,3,4-trimethyl nonane
b. 3-chloro-5-ethyl-octane
d. ethyl cyclopentene (use the column to the right of the screen)
c. 2-methyl-3-pentyne
e. 3-bromo-cyclohexene
PART III: Create the molecules below on CHEMSKETCH. Predict whether each molecule will be the E or Z isomer. Try
naming, but remember that CHEMSKETCH uses a slightly different system. The placement of the double bond will be
inserted into the chain name. If there is an –OH present, it will be written as –ol at the end of the name.
CH3
H3C
H3C
CH3
CH3
CH3
CH3
H3C
Cl
H3C
CH3
OH
CH3
PART IV: Use CHEMSKETCH to create each of the molecules listed below. Use the naming function to make sure you
have created it correctly:
a.
b.
4,5,6-trimethyl-2-octyne
6-isopropyl-3-decyne*
f. (3Z)-4-ethyl-3,6-dimethyl-3-heptene
g. (3E)- 3,6-dimethyl-4-propyl-3-heptene
c. 2-methyl-1-butene
h. (2E)-2-chloro-2-hexene
d. (3E)- 3-methyl-3-heptene
**i. (2Z,4E)-3-chloro-2,4-hexadiene
**j. (2E,4Z)-4-ethyl-6-methyl-2,4-heptadiene
*- chem sketch has a different name for isopropyl. Can you see where it came from?