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

doi:10.1016/j.aca.2022.339546

IR > 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
	2022-03-01
发表期刊	Analytica Chimica Acta
ISSN	0003-2670
卷号	1196
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.
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
DOI	10.1016/j.aca.2022.339546
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
WOS记录号	WOS:000755191500008
出版者	Elsevier B.V.
EI入藏号	20220611584319
EI主题词	Organometallics
EI分类号	531.1 Metallurgy ; 741.1 Light/Optics ; 801 Chemistry ; 804.1 Organic Compounds ; 815.1.1 Organic Polymers
来源库	WOS
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158030
专题	石油化工学院
通讯作者	Niu, Xiaohui; Wang, Kunjie
作者单位	Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
第一作者单位	石油化工学院
通讯作者单位	石油化工学院
第一作者的第一单位	石油化工学院
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).