1c ### Thin Layer Chromatography (TLC) and Intermolecular Forces**Procedure Overview:**A student spotted a three-component mixture onto a TLC plate and developed it using a solvent system (4:1 DCM:MeOH). The following steps illustrate how to analyze the TLC plate using a molecular view to determine the relative positions of the analytes, the interaction of solvent molecules with the analytes and the plate, and the relevant intermolecular forces.**Steps:**1. **TLC Plate Development:** - The TLC plate is eluted with a solvent mixture of 4:1 DCM:MeOH (dichloromethane:methanol). - The mixture initially spotted on the TLC plate contains three components.2. **Analyte Identification:** - The three components in the mixture are depicted in the magnified view as: - Diphenylmethanol (OH, benzene-CH-benzene, representing an intermediate polarity), - Acetone (a polar molecule with a carbonyl group), - Cyclopentene (a non-polar cyclic alkene). 3. **Intermediate Molecular View:** - Before the TLC plate is completely eluted, a molecular view is generated. This illustrates the TLC plate and the interactions occurring at the molecular level.4. **Silica Gel Structure:** - The TLC plate is coated with a stationary phase, typically silica gel (SiO₂), represented as a series of tetrahedral Si atoms bonded to oxygen atoms. - The surface of the silica gel contains hydroxyl groups (-OH) capable of hydrogen bonding.5. **Interaction with Solvent Molecules:** - Two DCM (dichloromethane) molecules and one MeOH (methanol) molecule are shown interacting with the silica plate and analytes. - DCM, being less polar, interacts primarily through van der Waals forces. - MeOH can form hydrogen bonds due to the presence of an -OH group.**Graph/Diagram Explanation:**- **Left Diagram: TLC Process Diagram:** - Depicts the TLC plate development process. - Shows the mixture spotted at the base and visualization of three separate spots after development. - TLC plate elution with 4:1 DCM:MeOH solvent system is indicated. - **Magnified View of the Mixture:** - Displays the three chemical structures

a) Depending on the polarity the analytes will be separated on the TLC plate. More the polar…

1. Shown below, a student spotted the three-component mixture onto a TLC plate and developed it using the solvent system listed. Using the Molecular View of the TLC plate provided: a) draw each molecule analyte (3 in total) in the correct position on the TLC plate, b) draw two (2) DCM molecules and one (1) MeOH molecules interacting with either the plate or the analytes, and c) for all molecules, clearly show the relevant intermolecular forces that explain the TLC results.

1. Shown below, a student spotted the three-component mixture onto a TLC plate and developed it using the solvent system listed. Using the Molecular View of the TLC plate provided: a) draw each molecule analyte (3 in total) in the correct position on the TLC plate, b) draw two (2) DCM molecules and one (1) MeOH molecules interacting with either the plate or the analytes, and c) for all molecules, clearly show the relevant intermolecular forces that explain the TLC results.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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