Dynamic nuclear polarization of nitrogen-15 in benzamide
文献类型：期刊论文
| 作者 | Hu, JZ; Zhou, JW; Yang, BL; Li, LY; Qiu, JQ; Ye, CH; Solum, MS; Wind, RA; Pugmire, RJ; Grant, DM |
| 刊名 | SOLID STATE NUCLEAR MAGNETIC RESONANCE
 |
| 出版日期 | 1997-04-01 |
| 卷号 | 8期号:2页码:129-137 |
| 关键词 | dynamic Nuclear Polarization solid state N-15 NMR benzamide free radicals relaxation time |
| 英文摘要 | A N-15 dynamic nuclear polarization (DNP) experiment is reported in which a N-15 DNP enhancement factor of approximately 2.6 x 10(2) is obtained on free radical doped samples of 99% N-15 labeled benzamide. The free radicals BDPA (1:1 complex of alpha,gamma-bisdiphenylene-beta-phenylallyl with benzene) and DPPH (2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl) are used as dopants and the spin relaxation effects of adding these dopants are studied by means of changes in proton and nitrogen T-1 values of the samples. The combination in solids of a very low natural abundance, 0.37%, a small gyromagnetic ratio, and a long spin-lattice relaxation time for N-15 nuclei create severe sensitivity problems that, in large part, are ameliorated by the signal enhancement observed in the N-15 DNP experiment on samples containing free electrons. (C) 1997 Elsevier Science B.V. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical ; Physics, Condensed Matter ; Spectroscopy |
| 研究领域[WOS] | Chemistry ; Physics ; Spectroscopy |
| 关键词[WOS] | C-13 NMR-SPECTROSCOPY ; SOLIDS ; INTERFACE ; BLENDS ; DNP |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1997XF17800006 |
| 公开日期 | 2015-12-01 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8262]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.UNIV UTAH, DEPT CHEM & FUELS ENGN, SALT LAKE CITY, UT 84112 USA 2.ACAD SINICA, WUHAN INST PHYS, LAB MAGNET RESONANCE & ATOM & MOL PHYS, WUHAN 430071, PEOPLES R CHINA 3.UNIV UTAH, DEPT CHEM, SALT LAKE CITY, UT 84112 USA 4.PACIFIC NW LAB, RICHLAND, WA 99352 USA |
| 推荐引用方式 GB/T 7714 | Hu, JZ,Zhou, JW,Yang, BL,et al. Dynamic nuclear polarization of nitrogen-15 in benzamide[J]. SOLID STATE NUCLEAR MAGNETIC RESONANCE,1997,8(2):129-137. |
| APA | Hu, JZ.,Zhou, JW.,Yang, BL.,Li, LY.,Qiu, JQ.,...&Grant, DM.(1997).Dynamic nuclear polarization of nitrogen-15 in benzamide.SOLID STATE NUCLEAR MAGNETIC RESONANCE,8(2),129-137. |
| MLA | Hu, JZ,et al."Dynamic nuclear polarization of nitrogen-15 in benzamide".SOLID STATE NUCLEAR MAGNETIC RESONANCE 8.2(1997):129-137. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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