Speakur

Word Pronunciation & Dictionary

kasha's rule

Word Rarity Very rare

Frequency: Zipf frequency 0.00 in modern English

Syllables
kasha's rule
IPA
17
Scrabble Score
10
Letters
1
Syllables
8
Unique Chars

Meaning

name

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.

Etymology

Named after American spectroscopist Michael Kasha, who proposed it in 1950.

Questions

What does kasha's rule mean?
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.
Where does kasha's rule come from?
Named after American spectroscopist Michael Kasha, who proposed it in 1950.

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