関連する実験動画

Updated: Jul 12, 2026

Unraveling Entropic Rate Acceleration Induced by Solvent Dynamics in Membrane Enzymes
09:42

Unraveling Entropic Rate Acceleration Induced by Solvent Dynamics in Membrane Enzymes

Published on: January 16, 2016

極性溶媒のダイナミクスと電子移転反応

M Maroncelli, J Macinnis, G R Fleming

    Science (New York, N.Y.)
    |March 31, 1989
    PubMed
    まとめ

    溶媒のダイナミクスは,電子の移転に影響することで,化学反応に大きな影響を与えます. これらの非均衡の溶解効果を理解することは,極性液体の反応速度を予測するために極めて重要です.

    さらに関連する動画

    Dissolution Dynamic Nuclear Polarization Instrumentation for Real-time Enzymatic Reaction Rate Measurements by NMR10:54

    Dissolution Dynamic Nuclear Polarization Instrumentation for Real-time Enzymatic Reaction Rate Measurements by NMR

    Published on: February 23, 2016

    Spatial Separation of Molecular Conformers and Clusters10:37

    Spatial Separation of Molecular Conformers and Clusters

    Published on: January 9, 2014

    関連する概念動画

    Molecular Shape and Polarity03:37

    Molecular Shape and Polarity

    Dipole Moment of a Molecule
    Solubility03:00

    Solubility

    Solution, Solubility, and Solubility Equilibrium
    A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
    In a solution, the solute particles (molecules, atoms, and/or ions)...
    The Colloidal State01:29

    The Colloidal State

    The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called the...
    Entropy and Solvation02:05

    Entropy and Solvation

    The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ ≥ 15); an...
    Intermolecular Forces03:13

    Intermolecular Forces

    Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
    Induced Electric Dipoles01:29

    Induced Electric Dipoles

    A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
    Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...