intersystemadj.

/ɪntəˈsɪstᵻm/

Etymology: < inter- prefix 2c(a) + system n.

Existing between systems; spec. in Physical Chemistry, between quantized systems or states of different multiplicity. intersystem crossing, the radiationless transition of an excited molecule to a state of different multiplicity.

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the world > matter > chemistry > physical chemistry > [adjective] > systems > existing between systems

intersystem1915

the world > matter > chemistry > atomic chemistry > [noun] > molecules > radiationless transition of an excited molecule

intersystem crossing1947

1915 Astrophysical Jrnl. 41 326 At the bottom of the table there is a section devoted to ‘inter-system’ series. These..are combinations between the triplet and single-line series.

1935 E. U. Condon & G. H. Shortley Theory Atomic Spectra ix. 237 Intersystem combinations are forbidden.

1947 Chem. Rev. 41 410 The mechanism of excitation of the triplet state..involves an intersystem ‘crossing’ of potential curves for the ¹Γ^* and ³Γ states.

1951 Discussions Faraday Soc. 9 15 Intersystem crossing is the spin-orbit-coupling-dependent internal conversion.

1965 Jrnl. Chem. Physics 43 2132/1 The absolute rate of intersystem crossing by excited singlets of triphenylene must be a couple of orders of magnitude faster than the same process in naphthalene.

1978 P. W. Atkins Physical Chem. xviii. 596 Singlet to triplet switching is called intersystem crossing.

This entry has not yet been fully updated (first published 1993; most recently modified version published online June 2018).

单词	intersystem
释义	intersystemadj. /ɪntəˈsɪstᵻm/ Etymology: < inter- prefix 2c(a) + system n. Existing between systems; spec. in Physical Chemistry, between quantized systems or states of different multiplicity. intersystem crossing, the radiationless transition of an excited molecule to a state of different multiplicity. ΘΚΠ the world > matter > chemistry > physical chemistry > [adjective] > systems > existing between systems intersystem1915 the world > matter > chemistry > atomic chemistry > [noun] > molecules > radiationless transition of an excited molecule intersystem crossing1947 1915 Astrophysical Jrnl. 41 326 At the bottom of the table there is a section devoted to ‘inter-system’ series. These..are combinations between the triplet and single-line series. 1935 E. U. Condon & G. H. Shortley Theory Atomic Spectra ix. 237 Intersystem combinations are forbidden. 1947 Chem. Rev. 41 410 The mechanism of excitation of the triplet state..involves an intersystem ‘crossing’ of potential curves for the ¹Γ^* and ³Γ states. 1951 Discussions Faraday Soc. 9 15 Intersystem crossing is the spin-orbit-coupling-dependent internal conversion. 1965 Jrnl. Chem. Physics 43 2132/1 The absolute rate of intersystem crossing by excited singlets of triphenylene must be a couple of orders of magnitude faster than the same process in naphthalene. 1978 P. W. Atkins Physical Chem. xviii. 596 Singlet to triplet switching is called intersystem crossing. This entry has not yet been fully updated (first published 1993; most recently modified version published online June 2018). < adj.1915
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