Is 4-nitrobenzenethiol converted to p,p '-dimercaptoazobenzene or 4-aminothiophenol by surface photochemistry reaction?
文献类型：期刊论文
| 作者 | Dong, B ; Fang, YR ; Xia, LX ; Xu, HX ; Sun, MT |
| 刊名 | JOURNAL OF RAMAN SPECTROSCOPY
 |
| 出版日期 | 2011 |
| 卷号 | 42期号:6页码:1205 |
| 关键词 | RAMAN-SCATTERING SPECTROSCOPY PARA-NITROBENZOIC ACID INDUCED PHOTOREDUCTION INDUCED PHOTOREACTION P-AMINOTHIOPHENOL SILVER AG AU NANOPARTICLES MONOLAYERS |
| ISSN号 | 0377-0486 |
| 通讯作者 | Sun, MT: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603-146, Beijing 100190, Peoples R China. |
| 中文摘要 | The structural and magnetic properties of the TbNi2Mnx series (0.9 <= x <= 1.10) have been investigated using x-ray diffraction, field-and temperature-dependent AC magnetic susceptibility, DC magnetization (5-340 K; 0-5 T) and Fe-57 Mossbauer spectroscopy (5-300 K). TbNi2Mnx crystallizes in the MgCu2-type structure (space group Fd (3) over barm). The additional contributions to the magnetic energy terms from transition-metal-transition-metal interactions (T-T) and rare-earth-transition-metal interactions (R-T) in RNi2Mn compounds contribute to their increased magnetic ordering temperatures compared with RNi2 and RMn2. Both the lattice constant a and the Curie temperature T-C exhibit maximal values at the x = 1 composition indicating strong magnetostructural coupling. Analyses of the AC magnetic susceptibility and DC magnetization data of TbNi2Mn around the Curie temperature T-C = 147 K confirm that the magnetic transition is second order with critical exponents beta = 0.77 +/- 0.12, gamma = 1.09 +/- 0.07 and delta = 2.51 +/- 0.06. These exponents establish that the magnetic interactions in TbNi2Mn are long range despite mixed occupancies of Tb and Mn atoms at the 8a site and vacancies. The magnetic entropy -Delta S-M around T-C is proportional to (mu H-0/T-C)(2/3) in agreement with the critical magnetic analyses. The Mossbauer spectra above T-C are fitted by two sub-spectra in agreement with refinement of the x-ray data while below T-C three sub-spectra are required to represent the three inequivalent local magnetic environments. |
| 收录类别 | SCI |
| 资助信息 | National Nature Science foundation of China [10874234, 90923003, 10804015, 20703064]; National Basic Research Program of China [2009 CB930701] |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40402]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Dong, B,Fang, YR,Xia, LX,et al. Is 4-nitrobenzenethiol converted to p,p '-dimercaptoazobenzene or 4-aminothiophenol by surface photochemistry reaction?[J]. JOURNAL OF RAMAN SPECTROSCOPY,2011,42(6):1205. |
| APA | Dong, B,Fang, YR,Xia, LX,Xu, HX,&Sun, MT.(2011).Is 4-nitrobenzenethiol converted to p,p '-dimercaptoazobenzene or 4-aminothiophenol by surface photochemistry reaction?.JOURNAL OF RAMAN SPECTROSCOPY,42(6),1205. |
| MLA | Dong, B,et al."Is 4-nitrobenzenethiol converted to p,p '-dimercaptoazobenzene or 4-aminothiophenol by surface photochemistry reaction?".JOURNAL OF RAMAN SPECTROSCOPY 42.6(2011):1205. |
入库方式： OAI收割
来源：物理研究所
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