COMMENT: DEFINITION OF BIRADICAL
نویسندگان
چکیده
منابع مشابه
Synthesis of a BDPA-TEMPO biradical.
The synthesis and characterization of a biradical containing a 1,3-bisdiphenylene-2-phenylallyl (BDPA) free radical covalently attached to a 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) free radical are described. The synthesis of the biradical is a step toward improved polarizing agents for dynamic nuclear polarization (DNP).
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A new polarizing agent with superior performance in dynamic nuclear polarization experiments is introduced, and utilizes two TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) moieties connected through a rigid spiro tether (see structure). The observed NMR signal intensities were enhanced by a factor of 1.4 compared to those of TOTAPOL, a previously described TEMPO-based biradical with a flexible te...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1966
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v66-036