Magnetic chirality transitions of D- and L-alanine
文献类型：期刊论文
| 作者 | Wang Wen-Qing1; Shen Xin-Chun1; Gong Yan2 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2008-05-01 |
| 卷号 | 24期号:5页码:743-748 |
| 关键词 | Magnetic Chirality Transition D-and L-alanine Direct Current Magnetic Susceptibility Polarized Raman Spectroscopy |
| ISSN号 | 1000-6818 |
| 英文摘要 | A chiral spin state of (N(+)H) in D- and L-alanine was established by monitoring the temperature dependence of dc-magnetic susceptibility (dc: direct current) under the external magnetic field of 1 T. An intrinsic spin chirality of electrons in the atomic magnetic dipole moment of (N(+)H) was also supported by polarized Raman spectroscopy. Magnetic chirality was associated with a strongly correlated electron system that was related to spin rigidity. Raman vibrational spectra were unrelated to structural chirality but could reflect spin chirality due to the reversal of motion breaking. The spin transition of (N(+)H) occured at 270 K without bond breaking but was assisted by an intermediate hydrogen bond elongation, splitting and reformation with NH(3)(+) torsion. The energy difference of spin chirality transitions between D- and L-alanine was around 10(-4)-10(-5) eV . molecule(-1). |
| 语种 | 英语 |
| WOS记录号 | WOS:000255995000002 |
| 出版者 | PEKING UNIV PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64461]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang Wen-Qing |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Tsinghua Univ, Coll Med, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Wen-Qing,Shen Xin-Chun,Gong Yan. Magnetic chirality transitions of D- and L-alanine[J]. ACTA PHYSICO-CHIMICA SINICA,2008,24(5):743-748. |
| APA | Wang Wen-Qing,Shen Xin-Chun,&Gong Yan.(2008).Magnetic chirality transitions of D- and L-alanine.ACTA PHYSICO-CHIMICA SINICA,24(5),743-748. |
| MLA | Wang Wen-Qing,et al."Magnetic chirality transitions of D- and L-alanine".ACTA PHYSICO-CHIMICA SINICA 24.5(2008):743-748. |
入库方式： OAI收割
来源：化学研究所
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