Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cofactors and Coenzymes01:24

Cofactors and Coenzymes

Enzymes are proteins made of amino acids. The functional group of each constituent amino acid catalyzes a wide variety of chemical reactions via ionic interactions or acid-base reactions. However, amino acids cannot catalyze oxidation-reduction and group transfer reactions and need to be aided by non-protein components called cofactors. Cofactors are also referred to as the chemical teeth of an enzyme.
Cofactors can be metallic ions or organic molecules called coenzymes. These types of helper...
Cofactors and Coenzymes01:27

Cofactors and Coenzymes

Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
Cofactors and Coenzymes01:27

Cofactors and Coenzymes

Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
Introduction to Mechanisms of Enzyme Catalysis01:13

Introduction to Mechanisms of Enzyme Catalysis

For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes a mild...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Escaping the Iron Law of Electrochemical CO<b><sub>2</sub></b> Reduction Using Pd<sub>12</sub>L<sub>24</sub> Cages as Artificial 2nd Coordination Spheres.

Inorganic chemistry·2026
Same author

Cooperative Dinuclear Activation of a Formate Intermediate in the Hydrogenation of CO<sub>2</sub> to Methanol.

Molecules (Basel, Switzerland)·2026
Same author

Photo-Driven CO<sub>2</sub> Reduction With a Heterogenized Re Catalyst in the Metal-Organic Framework PCN-777: Effects of Catalyst Loading and Anchoring Strategy on Catalysis.

ChemSusChem·2026
Same author

Reduced-Symmetry Homoleptic Pd<sub>2</sub>L<sub>4</sub> Cages Stabilized by Noncovalent π-Interactions.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025
Same author

Polyoxometalate-Directed Assembly of Robust Coordination Cages: Overcoming Kinetic Inertness and Conformational Mismatch.

Angewandte Chemie (International ed. in English)·2025
Same author

Precious Metal-Free Artificial Leaf for Photosynthesis of Hydrogen Peroxide from Water.

ChemSusChem·2025

Related Experiment Video

Updated: May 28, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
08:25

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Published on: January 17, 2020

"Cofactor"-controlled enantioselective catalysis.

Paweł Dydio1, Christophe Rubay, Tendai Gadzikwa

  • 1Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.

Journal of the American Chemical Society
|October 4, 2011
PubMed
Summary
This summary is machine-generated.

A new achiral rhodium complex becomes chiral upon binding small guests, enabling asymmetric catalysis. The best guest molecules yielded hydrogenation catalysts with up to 99% enantioselectivity.

More Related Videos

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
07:36

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues
12:07

Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues

Published on: November 22, 2014

Related Experiment Videos

Last Updated: May 28, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
08:25

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Published on: January 17, 2020

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
07:36

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues
12:07

Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues

Published on: November 22, 2014

Area of Science:

  • Organometallic Chemistry
  • Asymmetric Catalysis
  • Supramolecular Chemistry

Background:

  • Achiral catalysts typically lack enantioselectivity in chemical reactions.
  • Chiral catalysts are essential for synthesizing enantiomerically pure compounds.
  • Designing catalysts that can adapt their chirality is a significant challenge.

Purpose of the Study:

  • To develop an achiral rhodium complex capable of asymmetric catalysis.
  • To investigate the use of chiral anion guests (cofactors) for inducing chirality.
  • To optimize cofactor selection for high enantioselectivity in hydrogenation reactions.

Main Methods:

  • Synthesis of an achiral bisphosphine rhodium complex with a guest binding site.
  • Screening of a library of chiral anion guests (cofactors).
  • Evaluation of the resulting chiral catalysts in asymmetric hydrogenation reactions.

Main Results:

  • The rhodium complex successfully recognized and bound chiral cofactors, becoming chiral.
  • Hydrogenation catalysts formed using the best cofactors achieved high enantioselectivity (up to 99% ee).
  • A competition experiment demonstrated that the optimal cofactor dominated catalysis even in a mixture.

Conclusions:

  • An achiral rhodium complex can be rendered chiral through guest binding, enabling asymmetric catalysis.
  • The selection of appropriate chiral cofactors is critical for achieving high enantioselectivity.
  • This system offers a versatile approach to developing tunable asymmetric hydrogenation catalysts.