Fluxional molecule, the Glossary
In chemistry and molecular physics, fluxional (or non-rigid) molecules are molecules that undergo dynamics such that some or all of their atoms interchange between symmetry-equivalent positions.[1]
Table of Contents
39 relations: Absolute zero, Atom, Bailar twist, Bartell mechanism, Berry mechanism, Bullvalene, Chemical equilibrium, Chemistry, Conformational isomerism, Cope rearrangement, Cyclohexane, Cyclohexane conformation, Dimethylformamide, Electron transfer, Fluorine-19 nuclear magnetic resonance spectroscopy, Half-life, Infrared spectroscopy, Iron pentacarbonyl, Isotopic labeling, Methanium, Molecular physics, Molecule, Nanocluster, Octahedral molecular geometry, Organic compound, Organometallic chemistry, Phosphorus pentafluoride, Proton nuclear magnetic resonance, Pseudorotation, Pyramidal inversion, Ray–Dutt twist, Relaxation (NMR), Ring flip, Science (journal), Spectroscopy, Sulfur tetrafluoride, The Journal of Chemical Physics, The Journal of Organic Chemistry, Uncertainty principle.
- Chemical bond properties
Absolute zero
Absolute zero is the lowest limit of the thermodynamic temperature scale; a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin.
See Fluxional molecule and Absolute zero
Atom
Atoms are the basic particles of the chemical elements.
See Fluxional molecule and Atom
Bailar twist
The Bailar twist is a mechanism proposed for the racemization of octahedral complexes containing three bidentate chelate rings.
See Fluxional molecule and Bailar twist
Bartell mechanism
The Bartell mechanism is a pseudorotational mechanism similar to the Berry mechanism.
See Fluxional molecule and Bartell mechanism
Berry mechanism
The Berry mechanism, or Berry pseudorotation mechanism, is a type of vibration causing molecules of certain geometries to isomerize by exchanging the two axial ligands (see Figure at right) for two of the equatorial ones.
See Fluxional molecule and Berry mechanism
Bullvalene
Bullvalene is a hydrocarbon with the chemical formula.
See Fluxional molecule and Bullvalene
Chemical equilibrium
In a chemical reaction, chemical equilibrium is the state in which both the reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
See Fluxional molecule and Chemical equilibrium
Chemistry
Chemistry is the scientific study of the properties and behavior of matter.
See Fluxional molecule and Chemistry
Conformational isomerism
In chemistry, conformational isomerism is a form of stereoisomerism in which the isomers can be interconverted just by rotations about formally single bonds (refer to figure on single bond rotation).
See Fluxional molecule and Conformational isomerism
Cope rearrangement
The Cope rearrangement is an extensively studied organic reaction involving the 3,3-sigmatropic rearrangement of 1,5-dienes.
See Fluxional molecule and Cope rearrangement
Cyclohexane
Cyclohexane is a cycloalkane with the molecular formula.
See Fluxional molecule and Cyclohexane
Cyclohexane conformation
Cyclohexane conformations are any of several three-dimensional shapes adopted by molecules of cyclohexane.
See Fluxional molecule and Cyclohexane conformation
Dimethylformamide
Dimethylformamide is an organic compound with the chemical formula.
See Fluxional molecule and Dimethylformamide
Electron transfer
Electron transfer (ET) occurs when an electron relocates from an atom or molecule to another such chemical entity.
See Fluxional molecule and Electron transfer
Fluorine-19 nuclear magnetic resonance spectroscopy
Fluorine-19 nuclear magnetic resonance spectroscopy (fluorine NMR or 19F NMR) is an analytical technique used to detect and identify fluorine-containing compounds.
See Fluxional molecule and Fluorine-19 nuclear magnetic resonance spectroscopy
Half-life
Half-life (symbol) is the time required for a quantity (of substance) to reduce to half of its initial value.
See Fluxional molecule and Half-life
Infrared spectroscopy
Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) is the measurement of the interaction of infrared radiation with matter by absorption, emission, or reflection.
See Fluxional molecule and Infrared spectroscopy
Iron pentacarbonyl
Iron pentacarbonyl, also known as iron carbonyl, is the compound with formula.
See Fluxional molecule and Iron pentacarbonyl
Isotopic labeling
Isotopic labeling (or isotopic labelling) is a technique used to track the passage of an isotope (an atom with a detectable variation in neutron count) through chemical reaction, metabolic pathway, or a biological cell.
See Fluxional molecule and Isotopic labeling
Methanium
In chemistry, methanium is a complex positive ion with formula (metastable transitional form, a carbon atom covalently bonded to five hydrogen atoms) or (fluxional form, namely a molecule with one carbon atom covalently bonded to three hydrogen atoms and one dihydrogen molecule), bearing a +1 electric charge.
See Fluxional molecule and Methanium
Molecular physics
Molecular physics is the study of the physical properties of molecules and molecular dynamics.
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Molecule
A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.
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Nanocluster
Nanoclusters are atomically precise, crystalline materials most often existing on the 0-2 nanometer scale.
See Fluxional molecule and Nanocluster
Octahedral molecular geometry
In chemistry, octahedral molecular geometry, also called square bipyramidal, describes the shape of compounds with six atoms or groups of atoms or ligands symmetrically arranged around a central atom, defining the vertices of an octahedron.
See Fluxional molecule and Octahedral molecular geometry
Organic compound
Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon.
See Fluxional molecule and Organic compound
Organometallic chemistry is the study of organometallic compounds, chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal, including alkali, alkaline earth, and transition metals, and sometimes broadened to include metalloids like boron, silicon, and selenium, as well.
See Fluxional molecule and Organometallic chemistry
Phosphorus pentafluoride
Phosphorus pentafluoride, PF5, is a phosphorus halide.
See Fluxional molecule and Phosphorus pentafluoride
Proton nuclear magnetic resonance
Proton nuclear magnetic resonance (proton NMR, hydrogen-1 NMR, or 1H NMR) is the application of nuclear magnetic resonance in NMR spectroscopy with respect to hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of its molecules.
See Fluxional molecule and Proton nuclear magnetic resonance
Pseudorotation
In chemistry, a pseudorotation is a set of intramolecular movements of attached groups (i.e., ligands) on a highly symmetric molecule, leading to a molecule indistinguishable from the initial one.
See Fluxional molecule and Pseudorotation
Pyramidal inversion
In chemistry, pyramidal inversion (also umbrella inversion) is a fluxional process in compounds with a pyramidal molecule, such as ammonia (NH3) "turns inside out".
See Fluxional molecule and Pyramidal inversion
Ray–Dutt twist
The Ray–Dutt twist is a mechanism proposed for the racemization of octahedral complexes containing three bidentate chelate rings.
See Fluxional molecule and Ray–Dutt twist
Relaxation (NMR)
In magnetic resonance imaging (MRI) and nuclear magnetic resonance spectroscopy (NMR), an observable nuclear spin polarization (magnetization) is created by a homogeneous magnetic field.
See Fluxional molecule and Relaxation (NMR)
Ring flip
abbr.
See Fluxional molecule and Ring flip
Science (journal)
Science, also widely referred to as Science Magazine, is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals.
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Spectroscopy
Spectroscopy is the field of study that measures and interprets electromagnetic spectra.
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Sulfur tetrafluoride
Sulfur tetrafluoride is a chemical compound with the formula SF4.
See Fluxional molecule and Sulfur tetrafluoride
The Journal of Chemical Physics
The Journal of Chemical Physics is a scientific journal published by the American Institute of Physics that carries research papers on chemical physics.
See Fluxional molecule and The Journal of Chemical Physics
The Journal of Organic Chemistry
The Journal of Organic Chemistry, colloquially known as JOC, is a peer-reviewed scientific journal for original contributions of fundamental research in all branches of theory and practice in organic and bioorganic chemistry.
See Fluxional molecule and The Journal of Organic Chemistry
Uncertainty principle
The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics.
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See also
Chemical bond properties
- Activation of cyclopropanes by transition metals
- Bond energy
- Bond length
- Bond order
- Bond-dissociation energy
- Cis effect
- Fluxional molecule
- Group 13/15 multiple bonds
- Infrared photodissociation spectroscopy
- Pi electron donor-acceptor
- Sigma electron donor-acceptor
References
[1] https://en.wikipedia.org/wiki/Fluxional_molecule
Also known as Coalescence temperature, DNMR, Dynamic NMR spectroscopy, Dynamic NMR spectrum, Floppy molecule, Fluxional, Fluxional molecules, Fluxionality, Non-rigid molecule, Non-rigid molecules, Ring whizzer, Ring whizzing mechanism, Semi-rigid molecule, Stereochemical nonrigidity, Stereochemically nonrigid, Stereodynamic.