Caffeine and Molecular Interactions

Flashcards covering key vocabulary and concepts related to caffeine's structure, function, and intermolecular forces.

Caffeine

A substance that activates receptors in the brain, commonly found in coffee, energy drinks, and some medications.

Caffeine's Mechanism

A molecule with a structure similar to adenosine that binds to adenosine receptors, preventing adenosine from binding and causing tiredness.

Adenosine Receptors

Receptors in the brain that, when bound by adenosine, cause feelings of tiredness.

Adenosine

A naturally occurring nucleoside in the body that binds to receptors and promotes relaxation and sleepiness.

Methyl Groups

Chemical groups present in caffeine that prevent it from fully activating adenosine receptors, thus preventing the feeling of tiredness.

Pi-Pi Stacking

The non-covalent interactions between electron clouds of stacked aromatic rings, contributing to the binding of caffeine to receptors.

Intermolecular Forces

Attractive or repulsive forces between molecules, including London dispersion forces, dipole-dipole interactions, and hydrogen bonding.

London Dispersion Forces

Weak, short-range attractive forces between all molecules, arising from temporary fluctuations in electron distribution.

Electron Delocalization

The state where electrons are not associated with a single atom or bond, increasing stability by spreading electron density.

Asymmetry

Description of a molecule lacking symmetry.