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Symmetric top

Term · Chemistry · MLC-T-CHM-011724

A type of rigid rotor molecule in which two of the three principal moments of inertia are equal, while the third is different. This molecular geometry results in specific patterns in rotational spectra. Examples include ammonia (NH3) and methyl chloride (CH3Cl), which have a C3 axis of symmetry.

Table 1. Record
IdentifierMLC-T-CHM-011724
FieldChemistry
SubjectAnalytical Chemistry
ReferencesPAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 766 (https://doi.org/10.1515/pac-2019-0203)
See alsoAsymmetric top
Record as JSON 
{
  "id": "MLC-T-CHM-011724",
  "term": "Symmetric top",
  "field": "Chemistry",
  "definition": "A type of rigid rotor molecule in which two of the three principal moments of inertia are equal, while the third is different. This molecular geometry results in specific patterns in rotational spectra. Examples include ammonia (NH3) and methyl chloride (CH3Cl), which have a C3 axis of symmetry.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "asymmetric top"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 766 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/symmetric-top/"
}

Record 12,496 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.