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![9-氮杂双环[3.3.1]壬烷N-氧基 95%](/deepweb/assets/sigmaaldrich/product/structures/287/155/e2f4a2e1-1d4e-4bed-9187-9e16d23cbbbf/640/e2f4a2e1-1d4e-4bed-9187-9e16d23cbbbf.png)
形狀
solid
品質等級
官能基
ketone
儲存溫度
2-8°C
SMILES 字串
CC1(C)CC(=O)CC(C)(C)N1[O]
InChI
1S/C9H16NO2/c1-8(2)5-7(11)6-9(3,4)10(8)12/h5-6H2,1-4H3
InChI 密鑰
WSGDRFHJFJRSFY-UHFFFAOYSA-N
一般說明
4-氧代-TEMPO 是由2,2,6,6-四甲基-4-哌啶酮 (4-Oxo-TMP) 与1O2反应生成的。它是 TiO2在水悬浮液中辐照时形成的稳定的顺磁性产物。
應用
以 4-氧代-TEMPO 为氮氧化物标准品，用 ESR 波谱研究了 TiO2 在乙醇中光激反应生成单重态氧的过程。它可作为自由基极化剂用于动态核极化 (DNP) 研究。
自由基氮氧化物自旋探针通常用于：
- 锂二次电池阳极氧化还原源的研究
- 自由基生物学研究
- 自由基自旋俘获
- 电子顺磁共振研究
- 聚合物化学和合成应用
其他客户在看
Fuminori Hyodo et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 197(2), 181-185 (2009-01-23)
Nitroxides, unlike trityl radicals, have shorter T(2)s which until now were not detectable in vivo by a time-domain pulsed Electron Paramagnetic Resonance (EPR) spectrometer at 300 MHz since their phase memory times were shorter than the spectrometer recovery times. In
Mark Tseitlin et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 208(2), 279-283 (2010-12-18)
In rapid scan EPR the magnetic field is scanned through the signal in a time that is short relative to electron spin relaxation times. Previously it was shown that the slow-scan lineshape could be recovered from triangular rapid scans by
Maria-Teresa Türke et al.
Physical chemistry chemical physics : PCCP, 12(22), 5893-5901 (2010-05-11)
Dynamic nuclear polarization is emerging as a potential tool to increase the sensitivity of NMR aiming at the detection of macromolecules in liquid solution. One possibility for such an experimental design is to perform the polarization step between electrons and
Paul L Wood et al.
Brain research, 1095(1), 190-199 (2006-05-30)
The concept of "oxidative stress" has become a mainstay in the field of neurodegeneration but has failed to differentiate critical events from epiphenomena and sequalae. Furthermore, the translation of current concepts of neurodegenerative mechanisms into effective therapeutics for neurodegenerative diseases
Impact of Gd3+ on DNP of [1-13C] pyruvate doped with trityl OX063, BDPA, or 4-oxo-TEMPO.
Lumata L, et al.
The Journal of Physical Chemistry A, 116(21), 5129-5138 (2012)
商品
TEMPO (2,2,6,6-Tetramethylpiperidinyloxy or 2,2,6,6-Tetramethylpiperidine 1-oxyl) and its derivatives are stable nitroxy radicals used as catalysts in organic oxidation reactions. TEMPO was discovered by Lebedev and Kazarnovskii in 1960. The stable free radical nature of TEMPO is due to the presence of bulky substituent groups, which hinder the reaction of the free radical with other molecules.
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