Or g anic Structur es Shapes and Isomerism P art 2
Ka th y Carrig an
V er sion 42-0185-00-01
L a b R e p o r t A ss is ta n t
Thisdocumen tisnotmean tt obeasub s titut e f oraf ormallabor at or yr eport.TheLabR eport Assist an tissimplyasummar yofthee xperimen t ’ sques tions, diagr amsifneeded,andda t at ables tha tshouldbeaddr essedinaf ormallabr eport.Thein t en tist of acilit a t es tuden ts’writing oflab r eports b y pr o viding this in f orma tionin an edit able filewhich c an be sen t t o an ins truct or .
Qu es t i o ns
P art I Section1
A . W ouldthes tructur esy ouha v epr oducedinst ep1bec onsider edisomer sofoneanother? Explain thebasis f ory ourans w er .
B. Wha tar ethebond angles and molecular g eome tr yar oundthec arbonat oms?
P art I Section2
A . Is this possible with thedouble bond? Describewha ty ousee.
B. Wha tis thebond angle and molecular g eome tr yar oundthe2middle c arbonat oms?
P art I Section3
A . Wha tar ethebond angles and molecular g eome tr yar oundthedouble bonded c arbons?
B. Cany ourcis-2-but enemodelbec on v ert edint othetr ans-2-but enemodelwithoutbr eaking bonds?
C. The cis- and tr ans-2-but enesar ec alledg eome tricisomer s.Wh yar ethe ygiv enthis name?
D . De finethet erms tructur alisomer(seeOr g anicStructur esP art1)ande xplainho witdiff er s
fr oma g eome tricisomer .
P art I Challeng e Ques tions(r equir ed)
Indica t e whe thereachof the f ollo wing c ompound pair s ar e g eome tric isomer s, s tructur al isomer s, or not isomer s a tall. W rit ethenamesf orthec ompoundsunder each f ormula.
Names
Ar e these s tructur es isomer s? If so wha t type?
CH 3
CH 3
CH
CH 3
CH 3
CH 2 CH 2
CH 3
Names
Ar e these s tructur es isomer s? If so wha t type?
Cl Cl Cl
CH 3 CH
Cl
CH 2
and
CH 3 CH
CH 2
Names
Ar e these s tructur es isomer s? If so wha t type?
P artII :Ar oma ticHy dr oc arbons and R esonance
A . Wha tis theg eome tr yof eachof thec arbonsin benz ene?
B. Dr a w the s tructur al f ormula f or me th ylbenz ene. (Not e: dr a w the s tructur e using the dr a wing pr ogr amandpast eitinher e.W edonotw an t y ou t osc aninthisasapdffile.If y ouar eunable t o dr a w the s tructur e skip it and ans w er the r es t of the ques tion.)
P art III: Alkynes
A . Cons tructa model of 1-pr op yneand dr a wits s tructur alf ormula.
P art IV : FunctionalGr oup s
P art IV Section1
A . Cons tructamodel,usingther edat omwithtw opr ongsf oro xy g en,thendr a wthes tructur al f ormulaf or1-pr opanol,C3 H7 OH. (Thec ommonnameispr opanol,orpr op ylalc ohol)Wh yis o xy g enr epr esen t edb ythe“ben t ”s tructur e?
B. Cons tructamodel,thendr a wthes tructur alf ormulaf or2-pr opanol,C3 H7 OH.(Thec ommon name is isopr opanol, or isopr op yl alc ohol).
P art IV Section2
A . Cons truct a model, then dr a w the s tructur al f ormula f or dime th yl e ther, C2 H6 O.
B. Wha tr ela tionshipe xis tsbe tw eene thanol,C 2 H 6 O ,anddime th yle ther? Y ouma yneedt o
dr a w/ c ons tructa model of e thanolt oseethis.