Related Experiment Video

Updated: Aug 6, 2026

Free Radicals in Chemical Biology: from Chemical Behavior to Biomarker Development
14:22

Free Radicals in Chemical Biology: from Chemical Behavior to Biomarker Development

Published on: April 15, 2013

Rho Chi Lecture Award. Is it possible to teach scientific creativity in the pharmaceutical sciences? Anecdotes and

E R Garrett

    Drug Intelligence & Clinical Pharmacy
    |July 1, 1985
    PubMed

    More Related Videos

    Curation of Computational Chemical Libraries Demonstrated with Alpha-Amino Acids08:21

    Curation of Computational Chemical Libraries Demonstrated with Alpha-Amino Acids

    Published on: April 13, 2022

    Improving Student Outcomes with an Adaptable Molecular Cloning Course-Based Undergraduate Research Experience10:17

    Improving Student Outcomes with an Adaptable Molecular Cloning Course-Based Undergraduate Research Experience

    Published on: November 15, 2024

    Related Concept Videos

    Reaction Quotient02:35

    Reaction Quotient

    The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ⇌ x C + y D, the reaction quotient is derived directly from the stoichiometry of the balanced equation as
    Free-Radical Chain Reaction and Polymerization of Alkenes02:35

    Free-Radical Chain Reaction and Polymerization of Alkenes

    The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
    Photochemical Electrocyclic Reactions: Stereochemistry01:26

    Photochemical Electrocyclic Reactions: Stereochemistry

    The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
    Selection Rules: Photochemical Activation
    Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals01:17

    Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

    Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...
    Polymer Classification: Stereospecificity01:26

    Polymer Classification: Stereospecificity

    Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...