Question

Complete a potential energy diagram for rotation about the C-Cbond of 1,2-dichloroethane through 360°. starting with the least stable conformer. The anti conformer is 1.2 kcal/mol more stable than a gauche conformer. A gauche conformer has two energy barriers, 5.2 kcal/mol and 9.3 kcal/mol Drag the appropriate labels to their respective targets. Note: not all labels will be used. Reset Help 1209 12 03 00 180 380 90 80 240° Potential Energy AN Dhedral Angle

Answer 1

0-60 cl 60 60 Yotation rotation again H H IH 60 yotatin 60 again otatm H agein =180 cl 60 Yotation cl H 60 rotatun again H O=360 -300 hast Stable cl /cl - 9.3 Kcallmal O = 60, 0= 300° cl anti- conforme i kcal/mel meu stable than Geurche confoumes e= 180 Enuugy-d the meot stable and is taken.e kal/mote Totally telipsed Aartia ly 2elipsnt Rotential Enegy 0-360 /mol Gayche 9-3kal/lhed 6t2Xcayenote CPI30

cl meu stable high concentration H cl stable staggud confemuu and mot stable Eclipscd conforme mast -stable eclipsed confenme Pasetially Eelipsed confome e 5-aka/mol. medt tabugd ContomuAntr conpomu 0 hol/mole Fakcal/mol Enuugy diftunce meot stab le staggered contorm CH and uool Stabl .. Engy Fclipscd confoumer Least Stable Eclipsed confome Totally Ealipsco corfoma 9-3 kaal/mol Staggened conformu is 9:3 Kcay/mole bost stable Eclipsed confoumeu more stable than