Draw the most stable chair conformation of the sugar

Assignment Help Chemistry

Reference no: EM13779933

1. For each set of structures, indicate which pairs of compounds are isomers (constitutional or geometric), which pairs are conformers, and which pairs are identical. For example, in part a, compare the relationships of A and B; A and C; B and C.

1965_Write structural formulas.png

2. Write structural formulas for both chair conformations of each of the following compounds. (Line drawing is ok - but be very careful in your bond angles - axial versus equitorial must be obvious). Indicate which conformer is more stable and why.

a. cis-1-isopropyl-3-methylcyclohexane

b. trans- 1 -isopropyl-3-methylcyclohexane

c. cis-1-tent-butyl-4-ethylcyclohexane

d. cis-1 ,1 ,3 ,4-tetramethylcyclohexane

1049_Write structural formulas1.png

3. For the molecules below, estimate the energy difference between the most stable and next best conformation. Hint: the value of the axial strain energy of a hydroxy group is 900 calories; the value of the axial strain energy of a methyl group is 1700 calories.

Calculate the approximate ratio of the two at 300K.

2082_Write structural formulas2.png

4. Draw the most stable chair conformation of the sugar shown below:

79_Write structural formulas3.png

Reference no: EM13779933

Questions Cloud

Write an analysis essay about the hunger games : Write an analysis essay about The Hunger Games.

Assessing credibility and reliability of sources : Create a 12-slide Microsoft® PowerPoint® presentation on a methodology you create for assessing credibility and reliability of sources of CAM information. Include detailed speaker notes and reference citations.

Write review of article whos on first by thaler and sunstein : Review the article "Who's on First?" by Thaler & Sunstein (2003) from this module's assigned readings. This article reviews the book Moneyball by Michael Lewis.

About home network : Develop an entire home network with a budget of $1,000.00. Your configuration must assume the purchase of associated hardware for access to both wireless and wired connections and a broadband connection.

Draw the most stable chair conformation of the sugar : Write structural formulas for both chair conformations of each of the following compounds. (Line drawing is ok - but be very careful in your bond angles - axial versus equitorial must be obvious)

What specific cartoons from text will you use in your essay : What SPECIFIC cartoons from the text will you use to support your essay? what evedince do you find in the cartoons ? how do these cartoons support your ideas in the three prompt questions?

Some of the different types of inventories found : Discuss your thoughts concerning some of the different types of inventories found within some typical production organizations (Raw Materials, Work In Process, Finished Goods, Transit Inventory, Buffer Stocks, Anticipation, Decoupling).

Summarize the current state of web application security : Summarize the current state of Web application security for your Board of Directors to understand. Determine any common themes that need to be addressed specific to the Web security.

Create a one-page flyer that contains advertise : Create a one-page flyer that contains advertise. A text description about the activities based on the fitness activities detailed above.

User Account

All Pages