1
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Alešković M, Šekutor M. Overcoming barriers with non-covalent interactions: supramolecular recognition of adamantyl cucurbit[ n]uril assemblies for medical applications. RSC Med Chem 2024; 15:433-471. [PMID: 38389878 PMCID: PMC10880950 DOI: 10.1039/d3md00596h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/30/2023] [Indexed: 02/24/2024] Open
Abstract
Adamantane, a staple in medicinal chemistry, recently became a cornerstone of a supramolecular host-guest drug delivery system, ADA/CB[n]. Owing to a good fit between the adamantane cage and the host cavity of the cucurbit[n]uril macrocycle, formed strong inclusion complexes find applications in drug delivery and controlled drug release. Note that the cucurbit[n]uril host is not solely a delivery vehicle of the ADA/CB[n] system but rather influences the bioactivity and bioavailability of drug molecules and can tune drug properties. Namely, as host-guest interactions are capable of changing the intrinsic properties of the guest molecule, inclusion complexes can become more soluble, bioavailable and more resistant to metabolic conditions compared to individual non-complexed molecules. Such synergistic effects have implications for practical bioapplicability of this complex system and provide a new viewpoint to therapy, beyond the traditional single drug molecule approach. By achieving a balance between guest encapsulation and release, the ADA/CB[n] system has also found use beyond just drug delivery, in fields like bioanalytics, sensing assays, bioimaging, etc. Thus, chemosensing in physiological conditions, indicator displacement assays, in vivo diagnostics and hybrid nanostructures are just some recent examples of the ADA/CB[n] applicability, be it for displacements purposes or as cargo vehicles.
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Affiliation(s)
- Marija Alešković
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute Bijenička 54 10 000 Zagreb Croatia
| | - Marina Šekutor
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute Bijenička 54 10 000 Zagreb Croatia
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2
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Yin H, Cheng Q, Bardelang D, Wang R. Challenges and Opportunities of Functionalized Cucurbiturils for Biomedical Applications. JACS AU 2023; 3:2356-2377. [PMID: 37772183 PMCID: PMC10523374 DOI: 10.1021/jacsau.3c00273] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 09/30/2023]
Abstract
Cucurbit[n]uril (CB[n]) macrocycles (especially CB[5] to CB[8]) have shown exceptional attributes since their discovery in 2000. Their stability, water solubility, responsiveness to several stimuli, and remarkable binding properties have enabled a growing number of biological applications. Yet, soon after their discovery, the challenge of their functionalization was set. Nevertheless, after more than two decades, a myriad of CB[n] derivatives has been described, many of them used in cells or in vivo for advanced applications. This perspective summarizes key advances of this burgeoning field and points to the next opportunities and remaining challenges to fully express the potential of these fascinating macrocycles in biology and biomedical sciences.
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Affiliation(s)
- Hang Yin
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Taipa, Macau 999078, China
| | - Qian Cheng
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Taipa, Macau 999078, China
| | | | - Ruibing Wang
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Taipa, Macau 999078, China
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3
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Al Muqarrabun LMR, Atthar AS, Kumar C P, Mandadapu V, Abdulrahman A, Iranmanesh H, Beves JE, Day AI. Gold and Silver Chains from Tetrahydrothiophenocucurbit[6]uril as Au or Ag-Nanoparticles. J Org Chem 2023; 88:12208-12215. [PMID: 37607400 DOI: 10.1021/acs.joc.3c00413] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Tetrahydrothiophenocucurbit[5 and 6]uril has been synthesized from tetrathiophenoglycoluril diether, providing thioether functionality at the exterior equatorial position of the cucurbituril cage. This functionality has been investigated for chemical modification through sulfoxide formation and subsequent Pummerer rearrangement to the acetoxy derivative of the tetrahydrothiophenocucurbit[5]uril. Nanoparticles of Au and Ag were prepared in the presence of tetrahydrothiophenocucurbit[6]uril, which curiously led to the formation of nanoparticle chains, growing in length over days to weeks.
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Affiliation(s)
- Laode M R Al Muqarrabun
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, Australian Capital Territory 2600, Australia
| | - Asma S Atthar
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, Australian Capital Territory 2600, Australia
| | - Pradeep Kumar C
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, Australian Capital Territory 2600, Australia
| | - Vijaybabu Mandadapu
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, Australian Capital Territory 2600, Australia
| | - Ahmed Abdulrahman
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, Australian Capital Territory 2600, Australia
| | - Hasti Iranmanesh
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Jonathon E Beves
- School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Anthony I Day
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, Australian Capital Territory 2600, Australia
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4
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Zadorozhnii PV, Kiselev VV, Hrek OO, Kharchenko AV, Okhtina OV. Synthesis, spectral characteristics, and molecular structure of 2-(2,4-dichlorophenyl)-6-(2-methoxybenzyl)-4-(trichloromethyl)-4H-1,3,5-oxadiazine. Struct Chem 2022. [DOI: 10.1007/s11224-022-02024-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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5
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Zheng J, Ma Y, Yang X, Ma P. Study on the coordination of cyclopentanocucurbit[5,6]uril with Fe 3+, Co 2+ and Ni 2+ ions. RSC Adv 2022; 12:18736-18745. [PMID: 35873309 PMCID: PMC9239054 DOI: 10.1039/d2ra02459d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/16/2022] [Indexed: 11/24/2022] Open
Abstract
This paper reports the coordination of cyclopentanocucurbit[5]uril (CyP5Q[5]) and cyclopentanocucurbit[6]uril (CyP6Q[6]) with Fe(ClO4)3, Co(ClO4)2 and Ni(ClO4)2. Single crystal X-ray diffraction analysis shows the metal ions are directly coordinated with the portal of the cucurbit[n]uril to form a one-dimensional supramolecular chain or independent systems in the CyP5Q[5]@Fe(ClO4)3, CyP5Q[5]@Co(ClO4)2, CyP6Q[6]@Co(ClO4)2 and CyP5Q[5]@Ni(ClO4)2 complexes. In CyP6Q[6]@Fe(ClO4)3, the metal ion is not directly coordinated with the cucurbit[n]uril portal, but after forming Fe(H2O)6, it interacts with the cucurbit[n]uril portal via a hydrogen bond. The CyP6Q[6]@Ni(ClO4)2 complex is quite special; in this system, there are both metal ions directly coordinated with the cucurbit[n]uril portal and free on the outer surface of the cucurbit[n]uril.
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Affiliation(s)
- Jun Zheng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University Guiyang 550025 People's Republic of China
| | - Yue Ma
- Guiyang College of Humanities and Science Guiyang 550025 People's Republic of China
| | - Xinan Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University Guiyang 550025 People's Republic of China
| | - Peihua Ma
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University Guiyang 550025 People's Republic of China
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6
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Chen M, Lv N, Zhao W, Day AI. The Cyclobutanocucurbit[5-8]uril Family: Electronegative Cavities in Contrast to Classical Cucurbituril while the Electropositive Outer Surface Acts as a Crystal Packing Driver. Molecules 2021; 26:7343. [PMID: 34885923 PMCID: PMC8659056 DOI: 10.3390/molecules26237343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 11/16/2022] Open
Abstract
The structural parameters for the cyclobutanoQ[5-8] family were determined through single crystal X-ray diffraction. It was found that the electropositive cyclobutano methylene protons (CH2) are important in forming interlinking crystal packing arrangements driven by the dipole-dipole interactions between these protons and the portal carbonyl O of a near neighbor. This type of interaction was observed across the whole family. Electrostatic potential maps also confirmed the electropositive nature of the cyclobutano CH2 but, more importantly, it was established that the cavities are electronegative in contrast to classical Q[5-8], which are near neutral.
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Affiliation(s)
- Minghua Chen
- College of Biology and Chemistry, Xingyi Normal University For Nationalities, Xingyi 562400, China; (M.C.); (N.L.)
| | - Naixia Lv
- College of Biology and Chemistry, Xingyi Normal University For Nationalities, Xingyi 562400, China; (M.C.); (N.L.)
| | - Weiwei Zhao
- Pharmaron Beijing Co., Ltd., Beijing 100176, China;
| | - Anthony I. Day
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, ACT 2600, Australia
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Zhang S, Tang A, Xie R, Zhao Z, Yao J, Miao M. Gold Catalysis Enabling Furan-Fused Cyclobutenes as a Platform toward Cross Cycloadditions. Org Lett 2021; 23:3701-3705. [PMID: 33904750 DOI: 10.1021/acs.orglett.1c01079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The inherently strained furan-fused cyclobutenes, in situ generated via cycloisomerizations of allenyl ketones bearing cyclopropyl moiety under gold catalysis, have been utilized as reactive building blocks toward cross cycloadditions. The [4 + 2] and [3 + 2] annulations of these species with benzo[c]isoxazoles and N-iminoquinazolinium ylides furnish various three-dimensional cyclobutane-bridged polyheterocycles in good yields. A wide range of typically electron-deficient 1,3-dienes, heterodienes, and 1,3-dipoles can trap furan-fused cyclobutenes to afford several polycyclic architectures.
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Affiliation(s)
- Shouzhi Zhang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Aijie Tang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Ruyu Xie
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Zhiqiang Zhao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Jinzhong Yao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, People's Republic of China
| | - Maozhong Miao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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8
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Lin RL, Liu JX, Chen K, Redshaw C. Supramolecular chemistry of substituted cucurbit[ n]urils. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00529k] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review covers important advances in the field of substituted cucurbit[n]urils.
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Affiliation(s)
- Rui-Lian Lin
- College of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- P. R. China
| | - Jing-Xin Liu
- College of Chemistry and Chemical Engineering
- Anhui University of Technology
- Maanshan 243002
- P. R. China
| | - Kai Chen
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
- School of Environmental Science and Engineering
- Nanjing University of Information Science & Technology
- Nanjing 210044
| | - Carl Redshaw
- Department of Chemistry & Biochemistry
- University of Hull
- Hull HU6 7RX
- UK
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9
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Brady KG, Gilberg L, Sigwalt D, Bistany-Riebman J, Murkli S, Klemm J, Kulhánek P, Šindelář V, Isaacs L. Conformationally Mobile Acyclic Cucurbit[n]uril-Type Receptors Derived from an S-shaped Methylene Bridged Glycoluril Pentamer. Supramol Chem 2020; 32:479-494. [PMID: 33731981 DOI: 10.1080/10610278.2020.1795173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report the synthesis of the conformationally mobile S-shaped glycoluril pentamer building block 3a and two new acyclic CB[n]-type receptors P1 and P2. P1 (9 mM) and P2 (11 mM) have moderate aqueous solubility but their host•guest complexes are poorly soluble. Host P1 does not undergo intermolecular self-association whereas P2 does (Ks = 189±27 M-1). 1H NMR titrations show that P1 and P2 are poor hosts toward hydrophobic (di)cations 6 - 11 (P1: Ka = 375-1400 M-1; P2: Ka = 1950-19800 M-1) compared to Tet1 and Tet2 (Tet1: Ka = 3.09 × 106 to 4.69 × 108 M-1; Tet2: Ka = 4.59 × 108 to 1.30 × 1010 M-1). Molecular modelling shows that P1 and P2 exist as a mixture of three different conformers due to the two S-shaped methylene bridged glycoluril dimer subunits that each possess two different conformations. The lowest energy conformers of P1 and P2 do not feature a well-defined central cavity. In the presence of guests, P2 adapts its conformation to form 1:1 P2•guest complexes; the binding free energy pays the energetic price of conformer selection. This energetically unfavorable conformer selection results in significantly decreased Ka values of P1 and P2 compared to Tet1 and Tet2.
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Affiliation(s)
- Kimberly G Brady
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Laura Gilberg
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States.,Department of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - David Sigwalt
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Joshua Bistany-Riebman
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Steven Murkli
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Jared Klemm
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Petr Kulhánek
- CEITEC - Central European Institute of Technology, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Vladimír Šindelář
- Department of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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10
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Wang XX, Tian FY, Liu M, Chen K, Zhang YQ, Zhu QJ, Tao Z. A water soluble tetramethyl-substituted cucurbit[8]uril obtained from larger intermediates? Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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11
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Chandrakumar PK, Dhiman R, Woodward CE, Iranmanesh H, Beves JE, Day AI. Tiara[ n]uril: A Glycoluril-Based Macrocyclic Host with Cationic Walls. J Org Chem 2019; 84:3826-3831. [PMID: 30813724 DOI: 10.1021/acs.joc.8b02913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The synthesis of new cationic macrocyclic host molecules is described. These macrocycles are comprised of glycoluril oligomers linked to two pyrazolium groups, which form part of a cationic wall facing into their cavities. A number of derivatives have been prepared with an objective to increasing the cavity size, and each new product has been fully characterized. Preliminary investigations of p Kas of Me10Tu[3]2+ and an interaction of L-glutamine indicate a potential for binding anionic molecules that also carry H-bond donor groups.
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Affiliation(s)
- Pradeep Kumar Chandrakumar
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
| | - Rajni Dhiman
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
| | - Clifford E Woodward
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
| | - Hasti Iranmanesh
- School of Chemistry , UNSW Sydney , Sydney , 2052 New South Wales , Australia
| | - Jonathon E Beves
- School of Chemistry , UNSW Sydney , Sydney , 2052 New South Wales , Australia
| | - Anthony I Day
- Chemistry, School of PEMS , University of New South Wales Canberra, Australian Defence Force Academy , Canberra , Australian Capital Territory 2600 , Australia
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12
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Liu W, Lu X, Meng Z, Isaacs L. A glycoluril dimer-triptycene hybrid receptor: synthesis and molecular recognition properties. Org Biomol Chem 2019; 16:6499-6506. [PMID: 30155536 DOI: 10.1039/c8ob01575a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The strategic combination of the methylene bridged glycoluril dimer and triptycene skeletons delivers acyclic water soluble hybrid receptor 1 which is analogous to cucurbit[6]uril. The molecular recognition properties of host 1 toward hydrophobic cationic guests are investigated in detail by a combination of 1H NMR spectroscopy and isothermal titration calorimetry (ITC) studies. The fluorescence emission of 1 can be selectively and efficiently quenched upon the formation of 1·26 and 1·28 complexes.
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Affiliation(s)
- Wenjin Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, P. R. China
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13
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Macartney DH. Cucurbit[n]uril Host-Guest Complexes of Acids, Photoacids, and Super Photoacids. Isr J Chem 2017. [DOI: 10.1002/ijch.201700096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Donal H. Macartney
- Department of Chemistry; Queen's University; 90 Bader Lane, Kingston ON Canada K7L3N6
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