Novel PTM-TEMPO Biradical for Fast Dissolution Dynamic Nuclear Polarization

被引：14
|
作者：
Munoz-Gomez, Jose-Luis [1 ,2 ]
Marin-Montesinos, Ildefonso [3 ]
Lloveras, Vega [1 ,2 ]
Pons, Miquel [3 ]
Vidal-Gancedo, Jose [1 ,2 ]
Veciana, Jaume [1 ,2 ]
机构：
[1] CSIC, Inst Ciencia Mat Barcelona ICMAB, Barcelona 08193, Spain
[2] CIBER BBN, Barcelona, Spain
[3] UB, Dept Organ Chem, Biomol NMR Lab, Barcelona 08028, Spain
来源：
ORGANIC LETTERS | 2014年 / 16卷 / 20期
关键词：
NMR; SPECTROSCOPY; MECHANISMS; RADICALS; DNP;
D O I：
10.1021/ol502644x
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The synthesis and characterization of a novel trityl-TEMPO biradical and the investigation of its properties as Dynamic Nuclear Polarization (DNP) polarizing agent are reported. Comparison with a structurally related monoradical (PTM-TEMPE) or mixtures of the two monoradical components reveals that the biradical has a much higher polarization efficiency and a faster polarization buildup. This offers the possibility of faster recycling further contributing to its efficiency as a polarizing agent.
引用
收藏
页码：5402 / 5405
页数：4
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