NMR and parity violation: low-temperature dependence in H-1 CRAMPS and C-13 CP/MAS ssNMR spectra of alanine enantiomer
文献类型：期刊论文
| 作者 | Wang, WQ; Min, W; Liang, Z; Wang, LY; Chen, L; Deng, F |
| 刊名 | BIOPHYSICAL CHEMISTRY
 |
| 出版日期 | 2003-03-25 |
| 卷号 | 103期号:3页码:289-298 |
| 关键词 | parity violation alanine enantiomer H-1-CRAMPS-ssNMR C-13-CP/MAS-ssNMR phase transition parity-violating energy difference |
| 英文摘要 | Life is based on L-ammo acids and D-sugars rather than the enantiomeric D-amino acids and L-sugars. This broken symmetry is now believed to be a feature of fundamental physics-a result of symmetry-breaking induced by the weak force, which makes one enantiomer slightly more stable than the other. An amplification mechanism based on quantum mechanical tunneling could give rise to a second-order phase transition. In order to understand the transition mechanism, we measured the temperature dependence of H-1 CRAMPS solid state NMR and C-13 CP/MAS spectra of D- and L-alanine crystals from 295 K through to 220 K. Obvious difference of NMR behaviors between two enantiomers was observed in the phase transition which may be related to one suggested by Salam, caused biochirality among twenty amino acids. (C) 2003 Elsevier Science B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Biochemistry & Molecular Biology ; Biophysics ; Chemistry, Physical |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Biophysics ; Chemistry |
| 关键词[WOS] | MIRROR-IMAGE MOLECULES ; ENERGY DIFFERENCE ; PHASE-TRANSITIONS ; CHIRAL MOLECULES ; AMINO-ACIDS ; NONCONSERVATION ; PARAMETERS ; VALINE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000182932800009 |
| 公开日期 | 2015-12-08 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8866]  |
| 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.Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys, Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, WQ,Min, W,Liang, Z,et al. NMR and parity violation: low-temperature dependence in H-1 CRAMPS and C-13 CP/MAS ssNMR spectra of alanine enantiomer[J]. BIOPHYSICAL CHEMISTRY,2003,103(3):289-298. |
| APA | Wang, WQ,Min, W,Liang, Z,Wang, LY,Chen, L,&Deng, F.(2003).NMR and parity violation: low-temperature dependence in H-1 CRAMPS and C-13 CP/MAS ssNMR spectra of alanine enantiomer.BIOPHYSICAL CHEMISTRY,103(3),289-298. |
| MLA | Wang, WQ,et al."NMR and parity violation: low-temperature dependence in H-1 CRAMPS and C-13 CP/MAS ssNMR spectra of alanine enantiomer".BIOPHYSICAL CHEMISTRY 103.3(2003):289-298. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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