Left or Right? The Direction of Compression-Generated Vortex-Like Flow Selects the Macroscopic Chirality of Interfacial Molecular Assemblies

doi:10.1002/chem.201101322

CORC > 化学研究所 > 中国科学院化学研究所

	Left or Right? The Direction of Compression-Generated Vortex-Like Flow Selects the Macroscopic Chirality of Interfacial Molecular Assemblies
	Chen, Penglei; Ma, Xiaoguang; Hu, Kaiming; Rong, Yunlong; Liu, Minghua
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2011-10-01
卷号	17 期号:43 页码:12108-12114
关键词	Chirality Compression Interfacial Molecular Assembly Langmuir-blodgett Films Mirror Symmetry Breaking Supramolecular Chemistry
ISSN号	0947-6539
DOI	10.1002/chem.201101322
英文摘要	A new method is described through which the macroscopic chirality of interfacial molecular assemblies of an achiral porphyrin can be mechanically controlled using an original yet efficient Langmuir-Blodgett (LB) technique. By using the unilateral compression geometry, we find that the assemblies deposited from the mirror regions of the LB trough display mirror macroscopic chirality. It is indicated that vortex-like flows could be generated during compression, and that it is the direction of this compression-generated vortex-like flow that determine the macroscopic chirality of the formed assemblies. Moreover, the standard sample-fabrication method with bilateral compression geometry is reformed, and we find that the samples formulated around the left-hand-and right-hand-side Langmuir barriers display opposite macroscopic chiralities. The results suggest that mechanically controlled supramolecular chirogenesis could be efficiently realized through such an LB technique. The investigation establishes a new forum for further investigation of the mechanically induced preferred supramolecular chirality in terms of interfacial organization, and provides the old LB technique with new opportunities for controlling the macroscopic chirality of a supramolecular system that is wholly composed of achiral units.
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000297316100025
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73699]
专题	中国科学院化学研究所
通讯作者	Liu, Minghua
作者单位	Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Colloid Interface & Chem Thermodynam, Inst Chem, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Chen, Penglei,Ma, Xiaoguang,Hu, Kaiming,et al. Left or Right? The Direction of Compression-Generated Vortex-Like Flow Selects the Macroscopic Chirality of Interfacial Molecular Assemblies[J]. CHEMISTRY-A EUROPEAN JOURNAL,2011,17(43):12108-12114.
APA	Chen, Penglei,Ma, Xiaoguang,Hu, Kaiming,Rong, Yunlong,&Liu, Minghua.(2011).Left or Right? The Direction of Compression-Generated Vortex-Like Flow Selects the Macroscopic Chirality of Interfacial Molecular Assemblies.CHEMISTRY-A EUROPEAN JOURNAL,17(43),12108-12114.
MLA	Chen, Penglei,et al."Left or Right? The Direction of Compression-Generated Vortex-Like Flow Selects the Macroscopic Chirality of Interfacial Molecular Assemblies".CHEMISTRY-A EUROPEAN JOURNAL 17.43(2011):12108-12114.