Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

What is Natural Selection?

What is Natural Selection?

Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.

Nature and Nurture

Nature and Nurture

Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...

Ion Channels

Ion Channels

The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow...

Reaction Mechanisms

Reaction Mechanisms

Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:

Determining Order of Reaction

Determining Order of Reaction

Rate laws describe the relationship between the rate of a chemical reaction and the concentration of its reactants. In a rate law, the rate constant k and the reaction orders are determined experimentally by observing how the rate of reaction changes as the concentrations of the reactants are changed. A common experimental approach to the determination of rate laws is the method of initial rates. This method involves measuring reaction rates for multiple experimental trials carried out using...

Chemical Reactions in Aqueous Solutions

Chemical Reactions in Aqueous Solutions

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.

You might also read

Related Articles

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

Sort by

Same author

The correlation discrete variable representation revisited.

The Journal of chemical physics·2026

Same author

Revealing umbrella bending as a reporter mode in the D+CH<sub>4</sub> reaction.

Nature communications·2025

Same author

Tensor Train Optimization for Conformational Sampling of Organic Molecules.

Journal of chemical theory and computation·2025

Same author

A multi-layer multi-configurational time-dependent Hartree approach to lattice models beyond one dimension.

The Journal of chemical physics·2024

Same author

A non-hierarchical multi-layer multi-configurational time-dependent Hartree approach for quantum dynamics on general potential energy surfaces.

The Journal of chemical physics·2024

Same author

Accurate Quantum Dynamics Calculations for the Cl + CH<sub>4</sub>/CHD<sub>3</sub>/CD<sub>4</sub> Reaction Rates.

The journal of physical chemistry. A·2024

Search research articles

Related Experiment Video

Updated: Feb 5, 2026

One-channel Cell-attached Patch-clamp Recording

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

Natural reaction channels in H + CHD

Roman Ellerbrock¹, Uwe Mantheuwe¹

¹Theoretische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany. roman.ellerbrock@uni-bielefeld.de uwe.manthe@uni-bielefeld.de.

Faraday Discussions

|September 19, 2018

Summary

Investigating the H + CHD3 reaction reveals how localized vibrations in CHD3 influence reaction pathways and memory effects, unlike in CH4. This study details symmetry differences and reactivity borrowing via quantum dynamics.

More Related Videos

Author Spotlight: A Novel Approach for Embedding Cell-Free Protein Synthesis Reactions in Hydrogels

Author Spotlight: A Novel Approach for Embedding Cell-Free Protein Synthesis Reactions in Hydrogels

Published on: June 23, 2023

Generation of Monoclonal Antibodies Against Natural Products

Generation of Monoclonal Antibodies Against Natural Products

Published on: April 6, 2019

Related Experiment Videos

Last Updated: Feb 5, 2026

One-channel Cell-attached Patch-clamp Recording

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

Author Spotlight: A Novel Approach for Embedding Cell-Free Protein Synthesis Reactions in Hydrogels

Author Spotlight: A Novel Approach for Embedding Cell-Free Protein Synthesis Reactions in Hydrogels

Published on: June 23, 2023

Generation of Monoclonal Antibodies Against Natural Products

Generation of Monoclonal Antibodies Against Natural Products

Published on: April 6, 2019

Area of Science:

Chemical Dynamics
Quantum Chemistry
Reaction Mechanisms

Background:

Natural reaction channels, defined by S-matrix singular value decomposition, represent pathways through a reaction's transition state.
Understanding mode-selective chemistry in hydrogen-polyatomic molecule reactions is crucial for controlling reaction outcomes.
Previous studies on H + CH4 reactions highlighted memory effects in vibrational mode participation.

Purpose of the Study:

To analyze reaction probabilities and state distributions for H + CHD3 → H2 + CD3 using natural reaction channels.
To investigate symmetry-related differences in mode-selective chemistry between H + CH4 and H + CHD3 reactions.
To explore the reactivity borrowing effect in CHD3 and its connection to resonant energy transfer.

Main Methods:

Accurate quantum dynamics calculations using the full-dimensional multi-layer multi-configurational time-dependent Hartree (MCTDH) method.
Application of the quantum transition state framework with a high-level ab initio potential energy surface.
Analysis of natural reaction channels for various initial ro-vibrational states of the reactants.

Main Results:

Localized vibrational modes in CHD3 limit the loss of memory effect compared to H + CH4, promoting spectator behavior.
The reactivity borrowing effect, driven by Fermi resonance-type state mixing, was investigated.
Natural reaction channel analysis provided detailed insights into resonant energy transfer and reactant-product state correlations.

Conclusions:

Symmetry differences in CHD3 lead to distinct mode-selective chemistry compared to CH4.
Localized vibrations in CHD3 play a significant role in preserving vibrational information during the reaction.
The study elucidates the mechanisms behind reactivity borrowing and energy transfer in the H + CHD3 reaction system.