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Ren X, Zhang J, Cheng M, Wang Q, Jiang J, Wang L. Supramolecular systems constructed by crown ether-based cryptands. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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High-yield preparation of new crown ether-based cryptands and improving complexation with paraquat, paraquat derivatives and diquat. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.10.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li X, Yuan X, Deng P, Chen L, Ren Y, Wang C, Wu L, Feng W, Gong B, Yuan L. Macrocyclic shape-persistency of cyclo[6]aramide results in enhanced multipoint recognition for the highly efficient template-directed synthesis of rotaxanes. Chem Sci 2016; 8:2091-2100. [PMID: 28451329 PMCID: PMC5399641 DOI: 10.1039/c6sc04714a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 11/21/2016] [Indexed: 12/16/2022] Open
Abstract
Examples of using two-dimensional shape-persistent macrocycles, i.e. those having noncollapsible and geometrically well-defined skeletons, for constructing mechanically interlocked molecules are scarce, which contrasts the many applications of these macrocycles in molecular recognition and functional self-assembly. Herein, we report the crucial role played by macrocyclic shape-persistency in enhancing multipoint recognition for the highly efficient template-directed synthesis of rotaxanes. Cyclo[6]aramides, with a near-planar conformation, are found to act as powerful hosts that bind bipyridinium salts with high affinities. This unique recognition module, composed of two macrocyclic molecules with one bipyridinium ion thread through the cavity, is observed both in the solid state and in solution, with unusually high binding constants ranging from ∼1013 M-2 to ∼1015 M-2 in acetone. The high efficacy of this recognition motif is embodied by the formation of compact [3]rotaxanes in excellent yields based on either a "click-capping" (91%) or "facile one-pot" (85%) approach, underscoring the great advantage of using H-bonded aromatic amide macrocycles for the highly efficient template-directed synthesis of mechanically interlocked structures. Furthermore, three cyclo[6]aramides bearing different peripheral chains 1-3 demonstrate high specificity in the synthesis of a [3]rotaxane from 1 and 2, and a [2]rotaxane from 3via a "facile one-pot" approach, in each case as the only isolated product. Analysis of the crystal structure of the [3]rotaxane reveals a highly compact binding mode that would be difficult to access using other macrocycles with a flexible backbone. Leveraging this unique recognition motif, resulting from the shape-persistency of these oligoamide macrocycles, in the template-directed synthesis of compact rotaxanes may open up new opportunities for the development of higher order interlocked molecules and artificial molecular machines.
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Affiliation(s)
- Xiaowei Li
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Xiangyang Yuan
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Pengchi Deng
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Lixi Chen
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Yi Ren
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Chengyuan Wang
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun 130012 , China
| | - Wen Feng
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
| | - Bing Gong
- Department of Chemistry , The State University of New York , Buffalo , New York 14260 , USA
| | - Lihua Yuan
- College of Chemistry , Key Laboratory for Radiation Physics and Technology of Ministry of Education , Analytical & Testing Center , Sichuan University , Chengdu 610064 , Sichuan , China . ; ; Tel: +86-28-85412890
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Shi J, Cao X, Wang X, Nie X, Zhou B, Bao X, Zhu J. A novel switchable [2]rotaxane driven by light energy with Rhodamine B as a stopper. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ye Y, Wang SP, Zhu B, Cook TR, Wu J, Li S, Stang PJ. Self-assembly of [3]catenanes and a [4]molecular necklace based on a cryptand/paraquat recognition motif. Org Lett 2015; 17:2804-7. [PMID: 25996900 DOI: 10.1021/acs.orglett.5b01211] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hierarchical self-assembly centered on metallacyclic scaffolds greatly facilitates the construction of mechanically interlocked structures. The formation of two [3]catenanes and one [4]molecular necklace is presented by utilizing the orthogonality of coordination-driven self-assembly and crown ether-based cryptand/paraquat derivative complexation. The threaded [3]catenanes and [4]molecular necklace were fabricated by using ten and nine total molecular components, respectively, from four and three unique species in solution, respectively. In all cases single supramolecular ensembles were obtained, attesting to the high degree of structural complexity made possible via self-assembly approaches.
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Affiliation(s)
- Yang Ye
- †College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Shu-Ping Wang
- †College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Bin Zhu
- †College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Timothy R Cook
- §Department of Chemistry, University at Buffalo, The State University of New York, 856 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Jing Wu
- †College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Shijun Li
- †College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Peter J Stang
- ‡Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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Xue M, Yang Y, Chi X, Yan X, Huang F. Development of Pseudorotaxanes and Rotaxanes: From Synthesis to Stimuli-Responsive Motions to Applications. Chem Rev 2015; 115:7398-501. [DOI: 10.1021/cr5005869] [Citation(s) in RCA: 605] [Impact Index Per Article: 67.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Min Xue
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Yong Yang
- Department
of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
| | - Xiaodong Chi
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Xuzhou Yan
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
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Yamashita Y, Mutoh Y, Yamasaki R, Kasama T, Saito S. Synthesis of [3]rotaxanes that utilize the catalytic activity of a macrocyclic phenanthroline-Cu Complex: remarkable effect of the length of the axle precursor. Chemistry 2014; 21:2139-45. [PMID: 25470127 DOI: 10.1002/chem.201405090] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Indexed: 11/08/2022]
Abstract
[3]Rotaxanes, which consist of one macrocyclic phenanthroline compound and two axle components, were prepared by the oxidative dimerization of an alkyne compound with bulky tris[4'-cyclohexyl-(1,1'-biphenyl)-4-yl]methyl blocking group. The catalytic activity of a macrocyclic phenanthroline-Cu complex was utilized to thread the two axle components inside the ring. The alkyne compound with chain of 15 or 20 methylene groups gave [3]rotaxanes in high yields, whereas the axle with a chain of six methylene groups afforded a [3]rotaxane in very poor yield. We also examined the effect of the ring size on the synthesis of [3]rotaxanes. [3]Rotaxanes were not isolated when a macrocyclic phenanthroline compound with a smaller ring size was used.
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Affiliation(s)
- Yoshiaki Yamashita
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601 (Japan)
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Zhang M, Yan X, Huang F, Niu Z, Gibson HW. Stimuli-responsive host-guest systems based on the recognition of cryptands by organic guests. Acc Chem Res 2014; 47:1995-2005. [PMID: 24804805 DOI: 10.1021/ar500046r] [Citation(s) in RCA: 274] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
CONSPECTUS: As the star compounds in host-guest chemistry, the syntheses of crown ethers proclaimed the birth of supramolecular chemistry. Crown ether-based host-guest systems have attracted great attention in self-assembly processes because of their good selectivity, high efficiency, and convenient responsiveness, enabling their facile application to the "bottom-up" approach for construction of functional molecular aggregates, such as artificial molecular machines, drug delivery materials, and supramolecular polymers. Cryptands, as preorganized derivatives of crown ethers, not only possess the above-mentioned properties but also have three-dimensional spatial structures and higher association constants compared with crown ethers. More importantly, the introduction of the additional arms makes cryptand-based host-guest systems responsive to more stimuli, which is crucial for the construction of adaptive or smart materials. In the past decade, we designed and synthesized crown ether-based cryptands as a new type of host for small organic guests with the purpose of greatly increasing the stabilities of the host-guest complexes and preparing mechanically interlocked structures and large supramolecular systems more efficiently while retaining or increasing their stimuli-responsiveness. Organic molecules such as paraquat derivatives and secondary ammonium salts have been widely used in the fabrication of functional supramolecular aggregates. Many host molecules including crown ethers, cyclodextrins, calixarenes, cucurbiturils, pillararenes, and cryptands have been used in the preparation of self-assembled structures with these guest molecules, but among them cryptands exhibit the best stabilities with paraquat derivatives in organic solvents due to their preorganization and additional and optimized binding sites. They enable the construction of sophisticated molecules or supramolecules in high yields, affording a very efficient way to fabricate stimuli-responsive functional supramolecular systems. This Account mainly focuses on the application of cryptands in the construction of mechanically interlocked molecules such as rotaxanes and catenanes, and stimuli-responsive host-guest systems such as molecular switches and supramolecular polymers due to their good host-guest properties. These cryptands are bicyclic derivatives of crown ethers, including dibenzo-24-crown-8, bis(m-phenylene)-26-crown-8, dibenzo-30-crown-10, and bis(m-phenylene)-32-crown-10. The length of the third arm has a very important influence on the binding strength of these cryptands with organic guests, because it affects not only the size fit between the host and the guest but also the distances and angles that govern the strengths of the noncovalent interactions between the host and the guest. For example, for bis(m-phenylene)-32-crown-10-based cryptands, a third arm of nine atoms is the best. The environmental responsiveness of these cryptand-based host-guest systems arises from either the crown ether units or the third arms. For example, a dibenzo-24-crown-8 unit introduces potassium cation responsiveness and an azobenzene group on the third arm imbues photoresponsiveness. We believe that studies on stimuli-responsive host-guest systems based on cryptands and organic guests will contribute significantly to future research on molecular devices, supramolecular polymers, and other functional supramolecular materials.
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Affiliation(s)
- Mingming Zhang
- State
Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Xuzhou Yan
- State
Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Feihe Huang
- State
Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Zhenbin Niu
- Department of Chemistry, Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, United States
| | - Harry W. Gibson
- Department of Chemistry, Virginia Polytechnic Institute & State University, Blacksburg, Virginia 24061, United States
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Zhou Q, Luo Y, Jiang H, Ye Y, Zhang Q, Dai G, Chen R. [2]Pseudorotaxanes Based on Naphtho-21-crown-7 and Secondary Dialkylammonium Salts: Remarkably Improved Association Constants Among Four Threaded Structures. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wu X, Xue M, Li J, Yan X, Zhou Q. Two protocols for the preparation of [2]rotaxanes based on the dibenzo-24-crown-8-based cryptand/paraquat recognition motif. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.119] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yi JM, Ni XL, Xiao X, Lu LB, Xue SF, Zhu QJ, Tao Z. Complexation of sym-bis(benzimidazole)-2,2′-ethylene salts with cucurbit[6]uril derivatives: A potential axle molecule for pseudorotaxanes. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.03.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Muraoka M, Ohta M, Mizutani Y, Takezawa M, Matsumoto A, Nakatsuji Y. Formation of a pseudorotaxane, capable of sensing cations via dethreading molecular motion, from a cryptand and bipyridinium salts. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-012-0280-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dong S, Gao L, Li J, Xu D, Zhou Q. Photo-responsive linear and cross-linked supramolecular polymers based on host–guest interactions. Polym Chem 2013. [DOI: 10.1039/c3py00494e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu L, Liu Y, Liu P, Wu J, Guan Y, Hu X, Lin C, Yang Y, Sun X, Ma J, Wang L. Phosphine oxide functional group based three-station molecular shuttle. Chem Sci 2013. [DOI: 10.1039/c3sc22048f] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Yan X, Chi X, Wei P, Zhang M, Huang F. [n]Pseudorotaxanes (n= 2, 3) from Self-Assembly of Two Cryptands and a 1,2-Bis(4-pyridinium)ethane Derivative. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200964] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Dumarcay-Charbonnier F, Marsura A. Expeditious synthesis of bis-β-cyclodextrinyl-diazacrown-[2]cryptorotaxanes. Chem Commun (Camb) 2012; 48:732-4. [PMID: 22117201 DOI: 10.1039/c1cc16171g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of original bis-β-cyclodextrin-[2]cryptorotaxanes in moderate to high yields is described. A synthetic approach based on the template-directed self-assembly threading process in aqueous medium gives a structure stabilized exclusively through non-covalent interactions. This procedure reveals a simple and efficient way to prepare highly organized supramolecular receptors from carefully designed subunits.
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Affiliation(s)
- Florence Dumarcay-Charbonnier
- SRSMC, Nancy Université & CNRS, Faculté des Sciences et Techniques, B. 70239, F-54506 Vandœuvre-lès-Nancy Cedex, France
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Yang W, Li Y, Zhang J, Chen N, Chen S, Liu H, Li Y. Directed Synthesis of [2]Catenanes Incorporating Naphthalenediimide and Crown Ethers by Associated Interactions of Templates. J Org Chem 2011; 76:7750-6. [DOI: 10.1021/jo201068y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenlong Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Graduate University of Chinese Academy of Sciences, Beijing 100080, P.R. China
| | - Yongjun Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Jianhong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Graduate University of Chinese Academy of Sciences, Beijing 100080, P.R. China
| | - Nan Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Graduate University of Chinese Academy of Sciences, Beijing 100080, P.R. China
| | - Songhua Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Graduate University of Chinese Academy of Sciences, Beijing 100080, P.R. China
| | - Huibiao Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Yuliang Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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Xu Z, Jiang L, Feng Y, Zhang S, Liang J, Pan S, Yang Y, Yang D, Cai Y. One-pot synthesis of donor–acceptor [2]rotaxanes based on cryptand–paraquat recognition motif. Org Biomol Chem 2011; 9:1237-43. [DOI: 10.1039/c0ob00629g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Niu Z, Gibson HW. Contrasting biscryptand/dimethyl paraquat [3]pseudorotaxanes: statistical vs. anticooperative complexation behavior. Org Biomol Chem 2011; 9:6909-12. [DOI: 10.1039/c1ob06299a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang M, Zheng B, Xia B, Zhu K, Wu C, Huang F. Synthesis of a Bis(1,2,3-phenylene) Cryptand and Its Dual-Response Binding to Paraquat and Diquat. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001034] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ko JL, Ueng SH, Chiu CW, Lai CC, Liu YH, Peng SM, Chiu SH. Using a Threading-Followed-by-Swelling Approach to Synthesize [2]Rotaxanes. Chemistry 2010; 16:6950-60. [DOI: 10.1002/chem.201000074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhu K, Wu L, Yan X, Zheng B, Zhang M, Huang F. Anion-Assisted Complexation of Paraquat by Cryptands Based on Bis(m-phenylene)-[32]crown-10. Chemistry 2010; 16:6088-98. [DOI: 10.1002/chem.200903553] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhang M, Zhu K, Huang F. Improved complexation of paraquat derivatives by the formation of crown ether-based cryptands. Chem Commun (Camb) 2010; 46:8131-41. [DOI: 10.1039/c0cc02717k] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Klivansky L, Koshkakaryan G, Cao D, Liu Y. Linear π-Acceptor-Templated Dynamic Clipping to Macrobicycles and [2]Rotaxanes. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900716] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Klivansky L, Koshkakaryan G, Cao D, Liu Y. Linear π-Acceptor-Templated Dynamic Clipping to Macrobicycles and [2]Rotaxanes. Angew Chem Int Ed Engl 2009; 48:4185-9. [DOI: 10.1002/anie.200900716] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Jiang J, MacLachlan MJ. Cationic guest inclusion in widemouthed Schiff base macrocycles. Chem Commun (Camb) 2009:5695-7. [DOI: 10.1039/b914564h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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