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A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
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A balanced chemical equation provides the information of chemical formulas of the reactants and products involved in the chemical change. A reaction’s stoichiometry helps predict how much of the reactant is needed to produce the desired amount of product, or in some cases, how much product will be formed from a specific amount of the reactant.
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Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
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All chemical reactions begin with a reactant, the general term for one or more substances entering the reaction. Sodium and chloride ions, for example, are the reactants in the production of table salt. One or more substances produced by a chemical reaction are called the product. Chemical reactions follow the law of conservation of mass, which means that matter cannot be created nor destroyed in a chemical reaction. The components of the reactants—the number of atoms and the...
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The Collision Theory
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Chemical reactions require sufficient energy to cause the matter to collide with enough precision and force that old chemical bonds can be broken and new ones formed. In general, kinetic energy is the form of energy powering any type of matter in motion. Imagine a person building a brick wall. The energy it takes to lift and place one brick on top of another is the kinetic energy—the energy matter possesses because of its motion. Once the wall is in place, it stores potential energy.
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Chemical Reaction between Colliding Vesicles.

Fredric M Menger1, Kevin L Caran1, Victor A Seredyuk1

  • 1Department of Chemistry Emory University Atlanta, GA 3O322 (USA) Fax: (+1) 404-727-6586.

Angewandte Chemie (International Ed. in English)
|May 2, 2018
PubMed
Summary
This summary is machine-generated.

Vesicle collisions drive organic reactions by transferring electrophiles, initiating rapid internal reactions. This study quantifies the kinetics of this nucleophile-electrophile vesicle interaction.

Keywords:
colloidshomogeneous catalysisreaction kineticsvesicles

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Area of Science:

  • Biochemistry
  • Physical Chemistry
  • Organic Chemistry

Background:

  • Vesicles are crucial for compartmentalization in biological systems.
  • Understanding reactions within and between vesicles is key to cellular processes.
  • Kinetics of intermolecular reactions involving vesicles are not fully elucidated.

Purpose of the Study:

  • To kinetically investigate an organic reaction between nucleophile-containing and electrophile-containing vesicles.
  • To determine the mechanism of reactant transfer and subsequent reaction.
  • To establish the rate-limiting steps in vesicle-mediated organic synthesis.

Main Methods:

  • Kinetic analysis of vesicle collision rates.
  • Spectrophotometric monitoring of reaction product formation.
  • Comparison of reaction rates with control experiments using single-component vesicles.

Main Results:

  • Electrophile transfer occurs efficiently during vesicle-vesicle collisions.
  • A rapid intra-vesicular reaction follows electrophile transfer.
  • The rate of the overall reaction is dependent on collision frequency and intra-vesicular reaction speed.

Conclusions:

  • Vesicle collisions serve as a mechanism for delivering reactants for organic synthesis.
  • The system demonstrates a facile pathway for compartmentalized organic reactions.
  • This work provides insights into vesicle-mediated reaction kinetics and potential applications in synthetic chemistry.