"Kasha's rule" meaning in English

See Kasha's rule in All languages combined, or Wiktionary

Proper name

Etymology: Named after American spectroscopist Michael Kasha, who proposed it in 1950. Head templates: {{en-prop|head=Kasha's rule}} Kasha's rule
  1. A principle in the photochemistry of electronically excited molecules, stating that photon emission (fluorescence or phosphorescence) occurs in appreciable yield only from the lowest excited state of a given multiplicity.
    Sense id: en-Kasha's_rule-en-name-f3lR5eBa Categories (other): English entries with incorrect language header, Pages with 1 entry, Pages with entries
     
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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-02-17 from the enwiktionary dump dated 2025-02-02 using wiktextract (ca09fec and c40eb85). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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