Kasha's rule

短语

释义与例句

name
  1. 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.

词源

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

来源：wiktionary