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  2. Reaction coordinate - Wikipedia

    en.wikipedia.org/wiki/Reaction_coordinate

    In chemistry, a reaction coordinate [1] is an abstract one-dimensional coordinate chosen to represent progress along a reaction pathway. Where possible it is usually a geometric parameter that changes during the conversion of one or more molecular entities, such as bond length or bond angle. For example, in the homolytic dissociation of ...

  3. C2-Symmetric ligands - Wikipedia

    en.wikipedia.org/wiki/C2-Symmetric_ligands

    Chiral ligands work by asymmetric induction somewhere along the reaction coordinate. The image to the right illustrates how a chiral ligand may induce an enantioselective reaction. The ligand (in green) has C 2 symmetry with its nitrogen, oxygen or phosphorus atoms hugging a central metal atom (in red). In this particular ligand the right side ...

  4. Catalytic cycle - Wikipedia

    en.wikipedia.org/wiki/Catalytic_cycle

    In chemistry, a catalytic cycle is a multistep reaction mechanism that involves a catalyst. [1] The catalytic cycle is the main method for describing the role of catalysts in biochemistry , organometallic chemistry , bioinorganic chemistry , materials science , etc.

  5. Energy profile (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Energy_profile_(chemistry)

    Figure 6:Reaction Coordinate Diagrams showing reactions with 0, 1 and 2 intermediates: The double-headed arrow shows the first, second and third step in each reaction coordinate diagram. In all three of these reactions the first step is the slow step because the activation energy from the reactants to the transition state is the highest.

  6. Catalytic triad - Wikipedia

    en.wikipedia.org/wiki/Catalytic_triad

    A catalytic triad is a set of three coordinated amino acid residues that can be found in the active site of some enzymes. [1] [2] Catalytic triads are most commonly found in hydrolase and transferase enzymes (e.g. proteases, amidases, esterases, acylases, lipases and β-lactamases).

  7. More O'Ferrall–Jencks plot - Wikipedia

    en.wikipedia.org/wiki/More_O'Ferrall–Jencks_plot

    These plots were first introduced in a 1970 paper by R. A. More O’Ferrall to discuss mechanisms of β-eliminations [2] and later adopted by W. P. Jencks in an attempt to clarify the finer details involved in the general acid-base catalysis of reversible addition reactions to carbon electrophiles such as the hydration of carbonyls.

  8. Bite angle - Wikipedia

    en.wikipedia.org/wiki/Bite_angle

    The bite angle affect the steric crowding at the Rh atom that results from the interactions of the bulky backbone of the ligand with substrate. The wide bite angle that results from the backbone allows the five-coordinate [Rh(H)(diphosphine)CO(alkene)] intermediate to adopt a structure that relieves steric hindrance.

  9. Active site - Wikipedia

    en.wikipedia.org/wiki/Active_site

    The active site consists of amino acid residues that form temporary bonds with the substrate, the binding site, and residues that catalyse a reaction of that substrate, the catalytic site. Although the active site occupies only ~10–20% of the volume of an enzyme, [ 1 ] : 19 it is the most important part as it directly catalyzes the chemical ...

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    related to: catalytic reaction coordinates examples biology lab manual 9th edition