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Intersystem crossing (ISC) is an isoenergetic radiationless process involving a transition between the two electronic states with different spin multiplicity. [ 1 ] Excited electrons can undergo intersystem crossing to a degenerate state with a different spin multiplicity.
A Jablonski diagram showing the excitation of molecule A to its singlet excited state (1 A*) followed by intersystem crossing to the triplet state (3 A) that relaxes to the ground state by phosphorescence. It was used to describe absorption and emission of light by fluorescents.
Internal conversion is a transition from a higher to a lower electronic state in a molecule or atom. [1] It is sometimes called "radiationless de-excitation", because no photons are emitted. It differs from intersystem crossing in that, while both are radiationless methods of de-excitation, the molecular spin state for internal conversion ...
This article is within the scope of WikiProject Chemistry, a collaborative effort to improve the coverage of chemistry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks. Chemistry Wikipedia:WikiProject Chemistry Template:WikiProject Chemistry Chemistry: Mid
Singlet fission is a spin-allowed process, unique to molecular photophysics, whereby one singlet excited state is converted into two triplet states.The phenomenon has been observed in molecular crystals, aggregates, disordered thin films, and covalently-linked dimers, where the chromophores are oriented such that the electronic coupling between singlet and the double triplet states is large.
Từ điển bách khoa toàn thư Việt Nam (Encyclopedia of Vietnam), a state-sponsored encyclopedia which was published in 2005. Vietnamese Wikipedia, a project of the Wikimedia Foundation. Vietnam War encyclopedias. Encyclopedic works and encyclopedias focused on Vietnam War-related topics.
Nguyễn Đình Chiểu was born in the southern province of Gia Định, the location of modern Saigon.He was of gentry parentage; his father was a native of Thừa Thiên–Huế, near Huế; but, during his service to the imperial government of Emperor Gia Long, he was posted south to serve under Lê Văn Duyệt, the governor of the south.
The Institute of Hán-Nôm Studies (Vietnamese: Viện nghiên cứu Hán Nôm; Hán Nôm: 院研究漢喃), or Hán-Nôm Institute (Vietnamese: Viện Hán Nôm, Hán Nôm: 院漢喃) in Hanoi, Vietnam, is the main research centre, historical archival agency and reference library for the study of chữ Hán and chữ Nôm (together, Hán-Nôm) texts for Vietnamese language in Vietnam.