NMR and parity violation: low-temperature dependence in H-1 CRAMPS and C-13 CP/MAS ssNMR spectra of alanine enantiomer

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	NMR and parity violation: low-temperature dependence in H-1 CRAMPS and C-13 CP/MAS ssNMR spectra of alanine enantiomer
	Wang, WQ ; Min, W ; Liang, Z ; Wang, LY ; Chen, L ; Deng, F
刊名	BIOPHYSICAL CHEMISTRY
	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
内容类型	期刊论文
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.