Competition of Major Forces Dominating the Structures of Porphyrin Assembly
文献类型：期刊论文
| 作者 | Ma, Juqing1,2; Zhang, Wenlong1; Li, Zhan2; Lin, Qiang2; Xu, Ji2; Han, Yongsheng2 |
| 刊名 | CRYSTAL GROWTH & DESIGN
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 16期号:4页码:1942-1947 |
| ISSN号 | 1528-7483 |
| 英文摘要 | Here we take the self-assembly of porphyrin molecules as an example to discover the reason for the diversity of assembled structures. The self-assembly is conducted at a range of pH conditions. Irregular, tubular, and rodlike particles are formed at pH 1.5, 6.5 and 12.5, respectively. X-ray diffraction spectra and UV absorption show that these particles have the same crystalline structures, while the packing types of molecules are different. At low pH, the molecules assemble together by end to end attachment with a J-type aggregation, forming irregular particles. This assembly is dominated by the competition of pi-pi interaction and repulsion force. The latter force is induced by the protonation of molecules under acid conditions. With the increase of pH, the repulsion force is attenuated and finally disappears under basic conditions. The pi-pi interaction becomes the major force under basic conditions, leading to a H-type aggregation via face to face attachment and forming rodlike particles. At the middle pH, the competition disturbs the symmetry of molecules assembly, forming tubular particles. Together with previous studies, we expect that the compromise between competing interactions is probably the governing rule for the diversity of assembled structures. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Crystallography ; Materials Science |
| 关键词[WOS] | LINEAR CONSTRAINT SOLVER ; PARTICLE MESH EWALD ; MOLECULAR SIMULATION ; LIMITED AGGREGATION ; DIFFUSION ; SUBSTITUENT ; COMPROMISE ; DYNAMICS ; NANORODS ; SPECTRA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373747700021 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20986]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Juqing,Zhang, Wenlong,Li, Zhan,et al. Competition of Major Forces Dominating the Structures of Porphyrin Assembly[J]. CRYSTAL GROWTH & DESIGN,2016,16(4):1942-1947. |
| APA | Ma, Juqing,Zhang, Wenlong,Li, Zhan,Lin, Qiang,Xu, Ji,&Han, Yongsheng.(2016).Competition of Major Forces Dominating the Structures of Porphyrin Assembly.CRYSTAL GROWTH & DESIGN,16(4),1942-1947. |
| MLA | Ma, Juqing,et al."Competition of Major Forces Dominating the Structures of Porphyrin Assembly".CRYSTAL GROWTH & DESIGN 16.4(2016):1942-1947. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。