Degree of supersaturation-regulated chiral symmetry breaking in one crystal
文献类型：期刊论文
| 作者 | Liu, Meirong; Qiu, Changgui; Guo, Zhenpeng; Qi, Li; Xie, Mingyi; Chen, Yi |
| 刊名 | Journal of physical chemistry b
 |
| 出版日期 | 2007-10-04 |
| 卷号 | 111期号:39页码:11346-11349 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp075238p |
| 通讯作者 | Chen, yi(chenyi@iceas.ac.cn) |
| 英文摘要 | This paper aimed at studying chiral symmetry-breaking phenomena in one crystal. preferential crystallization of racemic asparagines was carried out in nonseeded stagnant solutions through slow cooling. by varying the supersaturation, only one transparent crystal could be obtained at enough low supersaturation of dl-asparagine, and the crystal was not pure enantiomer with crystal enantiomeric excess increasing inversely with the degree of supersaturation. crystal enantiomeric excess can amount up to 85% in one transparent crystal. because no secondary nucleation occurred except for stochastic primary nucleation, we suggest that primary nucleation and competition between l- and d-nuclei were considered to be a mechanism for asymmetry amplification. high-performance capillary electrophoresis coupled with laser-induced fluorescence was used to separate and quantify l- and d-asparagine and the enantiomeric excess value can be calculated according to their concentration. |
| WOS关键词 | INDUCED FLUORESCENCE DETECTION ; CAPILLARY-ELECTROPHORESIS ; AMINO-ACIDS ; STIRRED CRYSTALLIZATION ; ENANTIOMERIC EXCESS ; GROWTH FRONT ; TRANSITION ; 1,1'-BINAPHTHYL ; DERIVATIZATION ; AMPLIFICATION |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000249838600003 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383691 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Lab Analyt Chem & Life Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Meirong,Qiu, Changgui,Guo, Zhenpeng,et al. Degree of supersaturation-regulated chiral symmetry breaking in one crystal[J]. Journal of physical chemistry b,2007,111(39):11346-11349. |
| APA | Liu, Meirong,Qiu, Changgui,Guo, Zhenpeng,Qi, Li,Xie, Mingyi,&Chen, Yi.(2007).Degree of supersaturation-regulated chiral symmetry breaking in one crystal.Journal of physical chemistry b,111(39),11346-11349. |
| MLA | Liu, Meirong,et al."Degree of supersaturation-regulated chiral symmetry breaking in one crystal".Journal of physical chemistry b 111.39(2007):11346-11349. |
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来源：中国科学院大学
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