singlet


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Related to singlet: Singlet oxygen, Singlet state

singlet

1. Physics a multiplet that has only one member
2. Chem a chemical bond consisting of one electron

singlet

[′siŋ·glət]
(quantum mechanics)
An energy level that is not split by a relatively weak interaction, and thus is not a multiplet or a member of a multiplet.
(spectroscopy)
A spectral line that cannot be resolved into components at even the highest resolution.
References in periodicals archive ?
The researchers find that the fission process happens as soon as just two of these molecules are in contact, and remarkably, that singlet fission is then completely efficient-so that every photon produces two triplets.
Production of singlet oxygen-derived hydroxylradical adducts during merocyanine-540 mediated photosensitization: analysis by ESR-spin trapping and HPLC with electrochemical detection.
During the 8-month study, the HDHHS laboratory also sent patterns for 56 (87%) of the 64 singlet isolates to DSHS, which coupled 11 (20%) of these with more cases in their statewide database.
Keywords: Humulus lupulus; Acne-causing bacteria; Oxygen radical absorbance; Singlet oxygen absorbance; Matrix metalloproteinases; Xanthohumol
Chemists have learned that retinal is highly susceptible to polymerization by localized free radicals and highly reactive singlet oxygen.
2+]) are changed into six singlet lines at 800[degrees]C which shows the formation of CaO and lattice disturbance.
Triplet oxygen is a good energy acceptor and it can be excited to its singlet state by energy transfer from a photosensitizer.
On a hot summer day, you may want to doff the bike shirt and wear a singlet on the run, especially the second one.
He looked the novice, being about the only kid in the crowded gym without a singlet and felt conspicuous.
PACT uses a combination of visible light and a photosensitising drug to cause destruction of microbial cells via singlet oxygen production.
In effective-range theory, the singlet scattering cross section [[sigma].