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Núñez-Rico JL, Cabezas-Giménez J, Lillo V, Balestra SRG, Galán-Mascarós JR, Calero S, Vidal-Ferran A. TAMOF-1 as a Versatile and Predictable Chiral Stationary Phase for the Resolution of Racemic Mixtures. ACS APPLIED MATERIALS & INTERFACES 2023; 15:39594-39605. [PMID: 37579193 DOI: 10.1021/acsami.3c08843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Metal-organic frameworks (MOFs) have become promising materials for multiple applications due to their controlled dimensionality and tunable properties. The incorporation of chirality into their frameworks opens new strategies for chiral separation, a key technology in the pharmaceutical industry as each enantiomer of a racemic drug must be isolated. Here, we describe the use of a combination of computational modeling and experiments to demonstrate that high-performance liquid chromatography (HPLC) columns packed with TAMOF-1 as the chiral stationary phase are efficient, versatile, robust, and reusable with a wide array of mobile phases (polar and non-polar). As proof of concept, in this article, we report the resolution with TAMOF-1 HPLC columns of nine racemic mixtures with different molecular sizes, geometries, and functional groups. Initial in silico studies allowed us to predict plausible separations in chiral compounds from different families, including terpenes, calcium channel blockers, or P-stereogenic compounds. The experimental data confirmed the validity of the models and the robust performance of TAMOF-1 columns. The added value of in silico screening is an unprecedented achievement in chiral chromatography.
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Affiliation(s)
- José Luis Núñez-Rico
- Institute of Chemical Research of Catalonia (ICIQ-CERCA) and the Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
- Department of Inorganic and Organic Chemistry and the Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona (UB), C/Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Juanjo Cabezas-Giménez
- Institute of Chemical Research of Catalonia (ICIQ-CERCA) and the Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
- Department of Physical and Inorganic Chemistry, Universitat Rovira i Virgili (URV), C/Marcel lí Domingo s/n, 43007 Tarragona, Spain
| | - Vanesa Lillo
- Institute of Chemical Research of Catalonia (ICIQ-CERCA) and the Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Salvador R G Balestra
- Materials Science Institute of Madrid, Spanish National Research Council (ICMM-CSIC), C/Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra. Utrera km 1, 41013 Seville, Spain
| | - José Ramón Galán-Mascarós
- Institute of Chemical Research of Catalonia (ICIQ-CERCA) and the Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Sofía Calero
- Materials Simulation and Modelling, Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Anton Vidal-Ferran
- Department of Inorganic and Organic Chemistry and the Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona (UB), C/Martí i Franqués 1-11, 08028 Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
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2
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Hefnawy M, El-Gendy M, Al-Salem H, Marenga H, El-Azab A, Abdel-Aziz A, Gamal AE, Alanazi M, Obaidullah A, Al-Hossaini A, Hefnawy A. Trends in monoliths: Packings, stationary phases and nanoparticles. J Chromatogr A 2023; 1691:463819. [PMID: 36724721 DOI: 10.1016/j.chroma.2023.463819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
Monoliths media are gaining interest as excellent substitutes to conventional particle-packed columns. Monolithic columns show higher permeability and lower flow resistance than conventional liquid chromatography columns, providing high-throughput performance, resolution and separation in short run times. Monolithic columns with longer length, smaller inner diameter and specific selectivity to peptides or enantiomers have been played important role in hyphenated system. Monolithic stationary phases possess great efficiency, resolution, selectivity and sensitivity in the separation of complex biological samples, such as the complex mixtures of peptides for proteome analysis. The development of monolithic stationary phases has opened the new avenue in chromatographic separation science and is in turn playing much more important roles in the wide application area. Monolithic stationary phases have been widely used in fast and high efficiency one- and multi-dimensional separation systems, miniaturized devices, and hyphenated system coupled with mass spectrometers. The developing technology for preparation of monolithic stationary phases is revolutionizing the column technology for the separation of complex biological samples. These techniques using porous monoliths offer several advantages, including miniaturization and on-line coupling with analytical instruments. Additionally, monoliths are ideal support media for imprinting template-specific sites, resulting in the so-called molecularly-imprinted monoliths, with ultra-high selectivity. In this review, the origin of the concept, the differences between their characteristics and those of traditional packings, their advantages and drawbacks, theory of separations, the methods for the monoliths preparation of different forms, nanoparticle monoliths and metal-organic framework are discussed. Two application areas of monolithic metal-organic framework and nanoparticle monoliths are provided. The review article discusses the results reported in a total of 218 references. Other older references were included to illustrate the historical development of monoliths, both in preparation and types, as well as separation mechanism.
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Affiliation(s)
- Mohamed Hefnawy
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia; Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Manal El-Gendy
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Huda Al-Salem
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Hanin Marenga
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Adel El-Azab
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Alaa Abdel-Aziz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Ali El Gamal
- Department of Pharmacognosy and Medicinal, Aromatic & Poisonous Plant Research Center (MAPPRC), College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohammed Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Ahmad Obaidullah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdullah Al-Hossaini
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdullah Hefnawy
- Faculty of Medicine, Mansoura Manchester Medical Program, Mansoura University, Mansoura, Egypt
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3
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Liang Y, Li E, Wang K, Guan ZJ, He HH, Zhang L, Zhou HC, Huang F, Fang Y. Organo-macrocycle-containing hierarchical metal-organic frameworks and cages: design, structures, and applications. Chem Soc Rev 2022; 51:8378-8405. [PMID: 36112107 DOI: 10.1039/d2cs00232a] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing hierarchical ordered systems is challenging. Using organo-macrocycles to construct metal-organic frameworks (MOFs) and porous coordination cages (PCCs) provides an efficient way to obtain hierarchical assemblies. Macrocycles, such as crown ethers, cyclodextrins, calixarenes, cucurbiturils, and pillararenes, can be incorporated within MOFs/PCCs and they also endow the resultant composites with enhanced properties and functionalities. This review summarizes recent developments of organo-macrocycle-containing hierarchical MOFs/PCCs, emphasizing applications and structure-property relationships of these hierarchically porous materials. This review provides insights for future research on hierarchical self-assembly using macrocycles as building blocks and functional ligands to extend the applications of the composites.
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Affiliation(s)
- Yu Liang
- State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Errui Li
- State Key Laboratory of Chemical Engineering, Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Kunyu Wang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA
| | - Zong-Jie Guan
- State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Hui-Hui He
- State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.,Fujian Cross Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University, Fuzhou 350117, China
| | - Liangliang Zhang
- Fujian Cross Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University, Fuzhou 350117, China
| | - Hong-Cai Zhou
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, P. R. China.,Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yu Fang
- State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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4
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Firooz SK, Armstrong DW. Metal-organic frameworks in separations: A review. Anal Chim Acta 2022; 1234:340208. [DOI: 10.1016/j.aca.2022.340208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/01/2022]
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5
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Ma X, Guo Y, Zhang L, Wang K, Yu A, Zhang S, Ouyang G. Crystal morphology tuning and green post-synthetic modification of metal organic framework for HPLC enantioseparation. Talanta 2021; 239:123143. [PMID: 34923255 DOI: 10.1016/j.talanta.2021.123143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
Chiral metal-organic frameworks (CMOFs) served as chiral stationary phases (CSPs) show great potential in enantioseparation field. However, their performance improvement are still hindered by the difficult column packed and high back pressure due to the irregular morphology and broad size scope of CMOF particles. Here, the size and morphology of achiral Co-MOF-74 were effectively adjusted by controlling the synthetic route, temperature, the ratio of reactants and the amount of 2-methylimidazole (2-MI) at first. As a result, the uniformly spherical crystals in size of about 5 μm with good dispersion were obtained. Subsequently, a simple, green post-synthetic modification strategy was proposed for the fabrication of l-tyrosine functionalized Co-MOF-74, namely Co-MOF-74-L-Tyr in H2O by incorporating l-tyrosine into the parent framework of Co-MOF-74 to construct chiral microenvironment. The homochiral Co-MOF-74-L-Tyr CSP gave superior enantioseparation performance for the eight chiral drugs and drug intermediates, such as nitrendipine, nimodipine, benzoin, 2,2'-furoin and bi-2-naphthol to the commercial columns under normal phase condition. The good repeatability and stability of this CSP was verified by the replicate enantioseparation for nimodipine and flavanone. Furthermore, the Co-MOF-74-L-Tyr packed column was successfully applied to detect the product N-1-(1-naphthyl)ethyltosylamide (HR-8) in the asymmetric reductive amination reaction. The size/morphology-controlled synthesis coupled with the green post-synthetic modification approach paves the way to fabricate target chiral MOFs with pre-designed functional groups, which is an effective complement for the preparation of CSPs in chiral chromatography.
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Affiliation(s)
- Xue Ma
- College of Chemistry, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China
| | - Yun Guo
- College of Chemistry, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China
| | - Ling Zhang
- College of Chemistry, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China
| | - Kexuan Wang
- College of Chemistry, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China
| | - Ajuan Yu
- College of Chemistry, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China.
| | - Shusheng Zhang
- Center of Advanced Analysis and Gene Sequencing, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China
| | - Gangfeng Ouyang
- Center of Advanced Analysis and Gene Sequencing, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan, 450001, PR China
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Qian JF, Ji W, Zhu H, Yang XS, Yue HD, Chen Q, He MY, Zhang ZH. Weak anionic ligands controlled synthesis of ZnII/CdII coordination polymers based on N-(4-pyridylmethyl)-l-threonine. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Chiral metal–organic frameworks based on asymmetric synthetic strategies and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214083] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Liu J, Mukherjee S, Wang F, Fischer RA, Zhang J. Homochiral metal-organic frameworks for enantioseparation. Chem Soc Rev 2021; 50:5706-5745. [PMID: 33972960 DOI: 10.1039/d0cs01236j] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Obtaining homochiral compounds is of high importance to human health and environmental sustainability. Currently, enantioseparation is one of the most effective approaches to obtain homochiral compounds. Thanks to their controlled synthesis and high efficiency, homochiral metal-organic frameworks (HMOFs) are one of the most widely studied porous materials to enable enantioseparation. In this review, we discuss the chiral pocket model in depth as the key to unlock enantioselective separation mechanisms in HMOFs. In particular, we classify our discussion of these chiral pockets (also regarded as "molecular traps") into: (a) achiral/chiral linker based helical channels as a result of packing modality; and (b) chiral pores inherited from chiral ligands. Driven by a number of mechanisms of enantioseparation, conceptual advances have been recently made in the design of HMOFs for achieving high enantioseparation performances. Herein, these are systematically categorised and discussed. Further we elucidate various applications of HMOFs as regards enantioseparation, systematically classifying them into their use for purification and related analytical utility according to the reported examples. Last but not the least, we discuss the challenges and perspectives concerning the rational design of HMOFs and their corresponding enantioseparations.
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Affiliation(s)
- Juan Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
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Zhang Y, Jin X, Ma X, Wang Y. Chiral porous organic frameworks and their application in enantioseparation. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:8-33. [PMID: 33245740 DOI: 10.1039/d0ay01831g] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Porous organic frameworks (POFs) are a kind of porous material with a network structure composed of repeated monomers, which have excellent physical and chemical properties, such as a high surface area, high porosity, uniform pore sizes and structural diversity, and which have aroused broad interest among researchers. With the rapid development of materials science, increasingly more porous materials have been developed and applied, especially metal organic frameworks (MOFs) and covalent organic frameworks (COFs), which have been widely applied in the fields of luminous materials, catalytic research, adsorption and drug transport. One of the most important applications for chiral porous materials is in chiral separation and these materials have become a research hotspot in the field of chromatographic separation and analysis in recent years. In this review, from the viewpoint of enantioseparation, the synthesis of chiral porous materials and their applications in high-performance liquid chromatography (HPLC), capillary electrochromatography (CEC), and gas chromatography (GC) are reviewed. The typical applications of MOFs in solid-phase microextraction (SPME) are also discussed.
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Affiliation(s)
- Ying Zhang
- School of Science, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
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10
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Xie SM, Chen XX, Zhang JH, Yuan LM. Gas chromatographic separation of enantiomers on novel chiral stationary phases. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115808] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Tang W, Xu J, Gu Z. Metal–Organic‐Framework‐based Gas Chromatographic Separation. Chem Asian J 2019; 14:3462-3473. [DOI: 10.1002/asia.201900738] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/08/2019] [Indexed: 02/01/2023]
Affiliation(s)
- Wen‐Qi Tang
- Jiangsu Key Laboratory of Biofunctional MaterialsJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsCollege of Chemistry and Materials ScienceNanjing Normal University Nanjing 210023 China
| | - Jin‐Ya Xu
- Jiangsu Key Laboratory of Biofunctional MaterialsJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsCollege of Chemistry and Materials ScienceNanjing Normal University Nanjing 210023 China
| | - Zhi‐Yuan Gu
- Jiangsu Key Laboratory of Biofunctional MaterialsJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsCollege of Chemistry and Materials ScienceNanjing Normal University Nanjing 210023 China
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12
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13
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Recent Progress in Asymmetric Catalysis and Chromatographic Separation by Chiral Metal–Organic Frameworks. Catalysts 2018. [DOI: 10.3390/catal8030120] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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14
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Zhang J, Chen Z. Metal-organic frameworks as stationary phase for application in chromatographic separation. J Chromatogr A 2017; 1530:1-18. [DOI: 10.1016/j.chroma.2017.10.065] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 10/24/2017] [Accepted: 10/26/2017] [Indexed: 12/15/2022]
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15
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Zhang JH, Nong RY, Xie SM, Wang BJ, Ai P, Yuan LM. Homochiral metal-organic frameworks based on amino acid ligands for HPLC separation of enantiomers. Electrophoresis 2017; 38:2513-2520. [DOI: 10.1002/elps.201700122] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/02/2017] [Accepted: 06/20/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Jun-Hui Zhang
- Department of Chemistry; Yunnan Normal University; Kunming P.R. China
| | - Rui-Yu Nong
- Department of Chemistry; Yunnan Normal University; Kunming P.R. China
| | - Sheng-Ming Xie
- Department of Chemistry; Yunnan Normal University; Kunming P.R. China
| | - Bang-Jin Wang
- Department of Chemistry; Yunnan Normal University; Kunming P.R. China
| | - Ping Ai
- Department of Chemistry; Yunnan Normal University; Kunming P.R. China
| | - Li-Ming Yuan
- Department of Chemistry; Yunnan Normal University; Kunming P.R. China
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Application of Homochiral Alkylated Organic Cages as Chiral Stationary Phases for Molecular Separations by Capillary Gas Chromatography. Molecules 2016; 21:molecules21111466. [PMID: 27834837 PMCID: PMC6274383 DOI: 10.3390/molecules21111466] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/22/2016] [Accepted: 10/28/2016] [Indexed: 11/30/2022] Open
Abstract
Molecular organic cage compounds have attracted considerable attention due to their potential applications in gas storage, catalysis, chemical sensing, molecular separations, etc. In this study, a homochiral pentyl cage compound was synthesized from a condensation reaction of (S,S)-1,2-pentyl-1,2-diaminoethane and 1,3,5-triformylbenzene. The imine-linked pentyl cage diluted with a polysiloxane (OV-1701) was explored as a novel stationary phase for high-resolution gas chromatographic separation of organic compounds. Some positional isomers were baseline separated on the pentyl cage-coated capillary column. In particular, various types of enantiomers including chiral alcohols, esters, ethers and epoxides can be resolved without derivatization on the pentyl cage-coated capillary column. The reproducibility of the pentyl cage-coated capillary column for separation was investigated using nitrochlorobenzene and styrene oxide as analytes. The results indicate that the column has good stability and separation reproducibility after being repeatedly used. This work demonstrates that molecular organic cage compounds could become a novel class of chiral separation media in the near future.
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17
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Xie SM, Yuan LM. Recent progress of chiral stationary phases for separation of enantiomers in gas chromatography. J Sep Sci 2016; 40:124-137. [DOI: 10.1002/jssc.201600808] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/20/2016] [Accepted: 08/21/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Sheng-Ming Xie
- Department of Chemistry; Yunnan Normal University; Kunming P. R. China
| | - Li-Ming Yuan
- Department of Chemistry; Yunnan Normal University; Kunming P. R. China
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18
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Yang JR, Xie SM, Zhang JH, Chen L, Nong RY, Yuan LM. Metal–Organic Framework [Cd(LTP)
2
]
n
for Improved Enantioseparations on a Chiral Cyclodextrin Stationary Phase in GC. J Chromatogr Sci 2016; 54:1467-1474. [DOI: 10.1093/chromsci/bmw111] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 04/13/2016] [Indexed: 11/13/2022]
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Yang JR, Xie SM, Liu H, Zhang JH, Yuan LM. Metal–Organic Framework InH(d-C10H14O4)2 for Improved Enantioseparations on a Chiral Cyclodextrin Stationary Phase in GC. Chromatographia 2015. [DOI: 10.1007/s10337-015-2863-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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