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- Which of the following is a Newman projection for the following compound as viewed down the indicated bond in the conformation shown? H. CH3 01 O II O III OIV Et CH3 1 Et H I CH3 13X Et CH3 -H || CH3 Et H CH3 Et Et ||| CH3 H H H CH3 Ø CH3 H CH3 IVto Medical Chemistry II. (BMC1CHEM02) oard / My courses / Introduction to Medical Chemistry II. (BMCICHEM02) / 29/03 2021 Chemistry Electronic te Electronic test in Chemistry n3 Cyclobutane is more stable molecule than cyclopropane, because.... Select one: ut of it has less angle strain. cyclobutane has a cis-trans stereoisomers. cyclobutane is a larger ring. it has more torsional strain. cyclopropane is planar. Next page[References) Draw the line-angle formula for the most stable carbocation with a molecular formula of: C3H,+ • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • If there are alternative structures, draw the most stable one. P opy aste ChemDoodle
- Draw the skeletal structure of a neutral acyclic molecule with one tetrahedral stereocenter. You may use only 8 carbon atoms and 1 halogen atom, plus as many hydrogen atoms as you like. Click and drag to start drawing a structure. S Shm CQ4 * 1,3-thiazolo[4,5,b]pyrdine 1,5-thiazolo[4,5,b]pyrdine 1,3-thiazol[4,5,c]pyridzine 6-thiabicyclo[4.5]decane 1-thia[5.6]decane Both are wrong Q5* ΟΟΟ Q6 * 2H-1,3-oxazete 4H-1,3-oxazete 2H-1,3-oxazane 4H-1,3-oxazaneOrganic ChemistryFor each pair of compounds, indicate whether the first structure is lower, higher, or about the same in energy as the second structure. Be sure to explain. C angle (c) CH3 OH is OH in energy than/as H3C because: Po (d) CN CN NC- CN CO₂Et is in energy than/as CO₂Et CO₂Et EtO₂C because:
- I need help on how to draw Newman projection when asked from a specific angle. for example, draw the C2-C3 Newman looking down at that bond, looking up at that bond, looking from an angle, looking from the side etc. I NEEEED some tips and tricks so I can easily tackle foreign questions !!!!!!6. Newman projections to Lewis structures From the following Newman projections, draw the corresponding Lewis structure in the same conformation. A) B) H. H CH3 H₂C N H OH CI Br CH3 H OH CH3Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This group is called an ethyl group and can be considered a sphere about twice the sizeof a methyl group. Draw the following Newman projections sighting down the C1C2 bond... a. The lowest potential energy conformation. b. The highest potential energy staggered conformation.
- According to the conventions above, what is the sign ( + or ) of the P.E. change (H) for Rxn 3?Consider the Newman projection below. a. Draw a full Lewis structure of this molecule with R1=Me,R2=Et , and R3=iPr . b. Given the sizes of these R groups (R3R2R1) , does the Newman projection above show thelowest potential energy conformation of this bond? If not, draw a Newman projectionshowing the lowest P.E. conformation (sighting down this same bond). c. To draw a Newman projection in the lowest P.E. conformation, the following rule of thumbusually applies: Place the largest group on the front carbon anti to the largest group on theback carbon. Is your answer to the previous question consistent with this rule of thumb?Complete this graph of relative potential energy vs. rotation of the C1C2 bond of ethane. Thepoint drawn for you indicates the P.E. at 0° (eclipsed).