d) 7-hydroxycoumarin forms one-dimensional hydrogen-bonded chains in the solid state. Coumarin-3-carboxylic acid forms hydrogen-bonded dimers. Coumarin does not show hydrogen bonding. (i) Using a diagram, define the term hydrogen bonding and use your answer to explain the differences in hydrogen bonding between the two molecules. (ii) Draw the hydrogen-bonded chain observed in 7-hydroxycoumarin and provide the graph-set notation to describe the motif. You should show at least 3 molecules. (iii) Draw the hydrogen-bonded dimers observed in coumarin-3-carboxylic acid and provide graph-set notation to describe the motif. You should show 2 molecules.
d) 7-hydroxycoumarin forms one-dimensional hydrogen-bonded chains in the solid state. Coumarin-3-carboxylic acid forms hydrogen-bonded dimers. Coumarin does not show hydrogen bonding. (i) Using a diagram, define the term hydrogen bonding and use your answer to explain the differences in hydrogen bonding between the two molecules. (ii) Draw the hydrogen-bonded chain observed in 7-hydroxycoumarin and provide the graph-set notation to describe the motif. You should show at least 3 molecules. (iii) Draw the hydrogen-bonded dimers observed in coumarin-3-carboxylic acid and provide graph-set notation to describe the motif. You should show 2 molecules.
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter10: Liquids And Solids
Section: Chapter Questions
Problem 18E: Under certain conditions, molecules of acetic acid, CH3COOH, form dimers, pairs of acetic acid...
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Transcribed Image Text:d) 7-hydroxycoumarin forms one-dimensional hydrogen-bonded chains in the
solid state. Coumarin-3-carboxylic acid forms hydrogen-bonded dimers.
Coumarin does not show hydrogen bonding.
(i) Using a diagram, define the term hydrogen bonding and use your answer
to explain the differences in hydrogen bonding between the two molecules.
(ii) Draw the hydrogen-bonded chain observed in 7-hydroxycoumarin and
provide the graph-set notation to describe the motif. You should show at
least 3 molecules.
(iii) Draw the hydrogen-bonded dimers observed in coumarin-3-carboxylic
acid and provide graph-set notation to describe the motif. You should show
2 molecules.
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