Induction of chiral polymers from metal-organic framework for stereoselective recognition

doi:10.1016/j.aca.2022.339546

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Induction of chiral polymers from metal-organic framework for stereoselective recognition
	Niu, Xiaohui; Yan, Simeng; Wang, Letong; Chen, Jinliang; Zhao, Rui; Li, Hongxia; Liu, Jian; Wang, Kunjie
刊名	Analytica Chimica Acta
	2022-03-01
卷号	1196
关键词	Amino acids Dichroism Metal-Organic Frameworks Organic polymers Stereochemistry Chiral channels Chiral metal Chiral polymers Chiral properties Electrochemical sensing Induction Metalorganic frameworks (MOFs) Nano channels Optically active polymers Stereoselective recognition
ISSN号	0003-2670
DOI	10.1016/j.aca.2022.339546
英文摘要	So far, the fabrication of chiral metal-organic framework (CMOF) is difficult to predict and the chiral functionality mainly comes from the building blocks that is a part of the frameworks. The induction effect in the chiral nanochannels of the metal-organic framework (MOF) makes achiral polymers have chiral properties, which has not been well explored. Therefore, CMOFs with chiral nanochannels or chiral pores appear to have special functions. Herein, CMOFs (D-his-ZIF-8) with chiral micropores or chiral nanochannels are prepared through a simple 2-methyl imidazolate in-situ substitution by D-histidine. The unmodified polyaniline with chirality (c-PANI) was synthesized in chiral nanochannels and pores of CMOF, which brought about chiral induction from the chiral nanochannels and pores of CMOF to c-PANI chains. The circular dichroism shows that the c-PANI chains released from the chiral nanochannel still maintains the chiral properties even leaves the chiral nanochannel. It can be seen from the electrochemical results that c-PANI has excellent conductivity, and the conductivity of CMOF is very poor. Electrochemical recognition showed that both CMOF and c-PANI have certain chiral recognition effects for L-Trp and D-Trp, from which the optimal recognition effect was obtained from c-PANI chains. This shows that the excellent conductivity of c-PANI not only expands the electrochemical signal, but also the helical structure of the c-PANI chains accelerates the distinction of chiral molecules. This study provides a novel perspective to induce chiral polymer chains with better conductivity in the nanochannels of CMOF. © 2022 Elsevier B.V.
WOS研究方向	Chemistry
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000755191500008
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158030]
专题	石油化工学院
作者单位	College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Niu, Xiaohui,Yan, Simeng,Wang, Letong,et al. Induction of chiral polymers from metal-organic framework for stereoselective recognition[J]. Analytica Chimica Acta,2022,1196.
APA	Niu, Xiaohui.,Yan, Simeng.,Wang, Letong.,Chen, Jinliang.,Zhao, Rui.,...&Wang, Kunjie.(2022).Induction of chiral polymers from metal-organic framework for stereoselective recognition.Analytica Chimica Acta,1196.
MLA	Niu, Xiaohui,et al."Induction of chiral polymers from metal-organic framework for stereoselective recognition".Analytica Chimica Acta 1196(2022).