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Ionic liquid induced spontaneous symmetry breaking: emergence of predominant handedness during the self-assembly of tetrakis(4-sulfonatophenyl)porphyrin (TPPS) with achiral ionic liquid
Zhang, Li; Tian, Ye; Liu, Minghua
2011
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
Volume13Issue:38Pages:17205-17209
AbstractThe self-assembly and supramolecular chirality of a dianionic tetrakis(4-sulfonatophenyl) porphyrin (TPPS) in the presence of ionic liquids, 1-alkyl-3-methylimidazolium tetrafluoroborate (alkyl = C-2, C-4 or C-6, abbreviated as C(2)mimBF(4), C(4)mimBF(4) and C(6)mimBF(4), respectively), have been investigated. It has been confirmed that mimBF(4) ionic liquids significantly promoted the J-aggregation of TPPS and the alkyl chain length in the imidazolium cation was closely related to the TPPS aggregation, the inducing ability of which decreased in the order of C-2, C-4 or C-6 in side chain. Interestingly, the formed TPPS assemblies with the ionic liquids showed supramolecular chirality although both TPPS and ionic liquids are achiral. It was found that the supramolecular chirality of the TPPS/IL system always appeared after the formation of the J aggregate. The dynamic process of the emergence of the handedness in the initial achiral system was monitored by the time-dependent CD spectra. A mechanism for the transformation of the conventional J-aggregate to the chiral J-aggregate was proposed. The work will lead to a deeper understanding of the chiral symmetry breaking in the supramolecular system.
DOI10.1039/c1cp21767d
Indexed BySCI
Language英语
WOS IDWOS:000295128000034
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72444
Collection中国科学院化学研究所
Corresponding AuthorLiu, Minghua
AffiliationChinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Colloid Interface & Chem Thermodynam, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Li,Tian, Ye,Liu, Minghua. Ionic liquid induced spontaneous symmetry breaking: emergence of predominant handedness during the self-assembly of tetrakis(4-sulfonatophenyl)porphyrin (TPPS) with achiral ionic liquid[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2011,13(38):17205-17209.
APA Zhang, Li,Tian, Ye,&Liu, Minghua.(2011).Ionic liquid induced spontaneous symmetry breaking: emergence of predominant handedness during the self-assembly of tetrakis(4-sulfonatophenyl)porphyrin (TPPS) with achiral ionic liquid.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,13(38),17205-17209.
MLA Zhang, Li,et al."Ionic liquid induced spontaneous symmetry breaking: emergence of predominant handedness during the self-assembly of tetrakis(4-sulfonatophenyl)porphyrin (TPPS) with achiral ionic liquid".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 13.38(2011):17205-17209.
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