biradical


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biradical

(ˌbaɪˈrædɪkəl)
n
(Biochemistry) a molecule with two centres
References in periodicals archive ?
b) biradical nouns with trisyllabic vocalic stems such as luhuD 'short' and pere 'family' in the genitive singular and nominative plural forms, e.
The corrole dimer 26 exhibits very broad absorption bands, which reach to 1700 nm because of its substantial biradical character.
2]) is a biradical which contains 2 unpaired electrons with parallel spin configurations.
APPLICATION OF THE DECARBOXYLATIVE PHOTOCYCLIZATION: MEMORY OF CHIRALITY EFFECTS IN TRIPLET BIRADICAL REACTIONS
The detection of the Criegee biradical and measurement of how fast it reacts was made possible by a unique apparatus, designed by Sandia researchers, that uses light from a third-generation synchrotron facility, at the Lawrence Berkeley National Laboratory's Advanced Light Source.
The most reactive state is the triplet state (T*) in which carbonyl groups exist as a biradical.
It has fueled the centuries-old debate of whether the Semitic lexicon is primarily built on biradical or triradical bases, that is, whether triradical roots are original or developed out of a more archaic biconsonantal base.
The vertically expanded portions of the spectra measured at 433 K (downward arrows in Figure 5) indicate signals from the biradical, 2NO-HAS, in both samples.
This is, however, prevented to a large extent by its saturation with the stable biradical (air) oxygen.
Greensboro, in February 1960, was the perfect locale for the trigger event, with a population of 123,000 (only 25 percent black, hence no major threat), five colleges, including two black and one Quaker (white), in a part of the state historically opposed to the political domination of the plantation counties of Eastern North Carolina, an NAACP leadership not adverse to calling in a competing organization, CORE, for help, and a relatively enlightened city government willing to set up a biradical committee to mediate.
The reaction proceeds via a triplet biradical and is thus not stereospecific.
Semitic linguists offer their Swiss-born British colleague 26 papers on such topics as Semitic triradicalism and the biradical question, some parallels in linguistic development between Biblical Hebrew and Neo-Aramaic, the script of Taiman, a questionable theory of Egyptian influence on a genre of Hebrew literature, Dinah in a Syriac poem on Joseph, an archaic Amharic poem on condemning wealth and glory, Dante and modern Hebrew literature, and humor in the novels of Peretz Smolenskin.