51
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Calvello S, Soncini A. Effect of magnetic anisotropy on direct chiral discrimination in paramagnetic NMR spectroscopy. Phys Chem Chem Phys 2020; 22:8427-8441. [DOI: 10.1039/d0cp00539h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have studied the effect of thermally populated crystal field states on room temperature chiral discrimination in NMR spectroscopy.
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Affiliation(s)
- Simone Calvello
- School of Chemistry
- University of Melbourne
- VIC 3010
- Australia
- Australian Nuclear Science and Technology Organization
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52
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Dong L, Chen FE. Asymmetric catalysis in direct nitromethane-free Henry reactions. RSC Adv 2020; 10:2313-2326. [PMID: 35494598 PMCID: PMC9048686 DOI: 10.1039/c9ra10263a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 01/06/2020] [Indexed: 11/21/2022] Open
Abstract
This review summarizes the current state and applications of catalytic Henry reactions involving complex nitroalkanes coupling with various carbonyl compounds to generate chiral β-nitro alcohol scaffolds with four adjacent stereogenic centers.
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Affiliation(s)
- Lin Dong
- Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. of China
| | - Fen-Er Chen
- Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. of China
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53
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Bayer U, Anwander R. Carbonyl group and carbon dioxide activation by rare-earth-metal complexes. Dalton Trans 2020; 49:17472-17493. [PMID: 33232414 DOI: 10.1039/d0dt03578e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rare-earth elements (Ln = Sc, Y, La-Lu) are widely used in stoichiometric and catalytic carbonyl group transformations. Sufficient availability, non-toxicity, high oxophilicity, tunable ion size/Lewis acidity and enhanced ligand exchangeability have been major driving factors for their successful implementation. Routinely employed reagents for stoichiometric carbonyl group transformations are divalent ytterbium and samarium compounds (e.g., ketone reduction), bimetallic CeCl3/LiR (C-C coupling), or ceric ammonium nitrate CAN (cyclic ketone oxidation). Rare-earth-metal triflates, and in particular Sc(OTf)3, are prominent examples of Lewis acid catalysts for versatile use in organic synthesis (e.g., Aldol and Michael reactions). Moreover, Ln(ii) and Ln(iii) complexes efficiently catalyze the (co)polymerization of carbonyl group-containing monomers including lactones, lactides, acrylates, and carbon dioxide. Featuring the most notorious greenhouse gas, CO2 is currently assessed as a cheap, abundant, and non-toxic C1 building block. Ln(iii) complexes are not only capable of efficient CO2 capture via reversible insertion but also of CO2 activation for catalytic conversions (copolymerization/cycloaddition with epoxides). This perspective focuses on structurally elucidated Ln complexes resulting from ketone or carbonyl derivative activation/insertion as well as carbon dioxide insertion products. The respective compounds will be sorted by structural motifs and, if applicable, details on reactivity and feasibility of catalytic reactions are presented. The article is subdivided in three parts: (i) donor and insertion products of ketones and aldehydes, (ii) redox-enhanced activation of carbonyl derivatives, and (iii) CO2 insertion/redox products and homogeneous catalytic conversion.
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Affiliation(s)
- Uwe Bayer
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen (EKUT), Auf der Morgenstelle 18, 72076 Tübingen, Germany.
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54
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Wong HY, Lo WS, Yim KH, Law GL. Chirality and Chiroptics of Lanthanide Molecular and Supramolecular Assemblies. Chem 2019. [DOI: 10.1016/j.chempr.2019.08.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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55
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Khan S, Li H, Zhao C, Wu X, Zhang YJ. Asymmetric Allylic Etherification of Vinylethylene Carbonates with Diols via Pd/B Cooperative Catalysis: A Route to Chiral Hemi-Crown Ethers. Org Lett 2019; 21:9457-9462. [DOI: 10.1021/acs.orglett.9b03663] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sardaraz Khan
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Hongfang Li
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
| | - Can Zhao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xue Wu
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
| | - Yong Jian Zhang
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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56
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Hashimoto Y, Ikeda T, Ida A, Morita N, Tamura O. Inverse-Electron-Demand oxa-Diels-Alder Reactions of α-Keto-β,γ-unsaturated Esters and α,β-Unsaturated Hydrazones. Org Lett 2019; 21:4245-4249. [PMID: 31140822 DOI: 10.1021/acs.orglett.9b01422] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A concise synthetic method for dihydropyrans has been developed by inverse-electron-demand oxa-Diels-Alder reaction of α-keto-β,γ-unsaturated esters with α,β-unsaturated hydrazones as electron-rich olefins. This reaction is catalyzed by Eu(hfc)3 and proceeds in an endo-selective manner. This umpolung cycloaddition affords a variety of substituted dihydropyrans stereoselectively in high yields. In addition, indirect synthesis of formyl-substituted dihydropyran was achieved by dehydrazonation of the cycloadduct. This method is expected to be useful for the synthesis of dihydropyrans and tetrahydropyrans with unusual substitution patterns.
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Affiliation(s)
| | - Takanori Ikeda
- Showa Pharmaceutical University , Machida , Tokyo 194-8543 , Japan
| | - Ayako Ida
- Showa Pharmaceutical University , Machida , Tokyo 194-8543 , Japan
| | - Nobuyoshi Morita
- Showa Pharmaceutical University , Machida , Tokyo 194-8543 , Japan
| | - Osamu Tamura
- Showa Pharmaceutical University , Machida , Tokyo 194-8543 , Japan
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57
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Ye L, Rouxel JR, Asban S, Rösner B, Mukamel S. Probing Molecular Chirality by Orbital-Angular-Momentum-Carrying X-ray Pulses. J Chem Theory Comput 2019; 15:4180-4186. [PMID: 31125229 DOI: 10.1021/acs.jctc.9b00346] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A twisted X-ray beam with orbital angular momentum is employed in a theoretical study to probe molecular chirality. A nonlocal response description of the matter-field coupling is adopted to account for the field short wavelength and the structured spatial profile. We use the minimal-coupling Hamiltonian, which implicitly takes into account the multipole contributions to all orders. The combined interactions of the spin and orbital angular momentum of the X-ray beam give rise to circular-helical dichroism signals, which are stronger than ordinary circular dichroism signals, and may serve as a useful tool for the study of molecular chirality in the X-ray regime.
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Affiliation(s)
- Lyuzhou Ye
- Department of Chemistry and Department of Physics and Astronomy , University of California , Irvine , California 92697 , United States
| | - Jérémy R Rouxel
- Laboratory of Ultrafast Spectroscopy , École Polytechnique Fédérale de Lausanne , Lausanne CH-1015 , Switzerland.,Paul Scherrer Institut , Villigen-PSI 5232 , Switzerland
| | - Shahaf Asban
- Department of Chemistry and Department of Physics and Astronomy , University of California , Irvine , California 92697 , United States
| | | | - Shaul Mukamel
- Department of Chemistry and Department of Physics and Astronomy , University of California , Irvine , California 92697 , United States
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58
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Wang W, Xia X, Bian G, Song L. A chiral sensor for recognition of varied amines based on 19F NMR signals of newly designed rhodium complexes. Chem Commun (Camb) 2019; 55:6098-6101. [PMID: 31069349 DOI: 10.1039/c9cc01942a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel chiral octahedral rhodium complex containing fluorine has been developed to be an excellent chiral sensor for a variety of amines including diamines, monoamines, amino alcohols and amino acids, showing well distinguishable 19F NMR signals and an accurate measurement of enantiomeric determination.
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Affiliation(s)
- Wei Wang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
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59
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Harada S, Nishida A. Catalytic and Enantioselective Diels‐Alder Reaction of Siloxydienes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900159] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shinji Harada
- Graduate School of Pharmaceutical SciencesChiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research CenterChiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Atsushi Nishida
- Graduate School of Pharmaceutical SciencesChiba University 1-8-1 Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research CenterChiba University 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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60
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Klementyeva SV, Lukoyanov AN, Afonin MY, Mörtel M, Smolentsev AI, Abramov PA, Starikova AA, Khusniyarov MM, Konchenko SN. Europium and ytterbium complexes with o-iminoquinonato ligands: synthesis, structure, and magnetic behavior. Dalton Trans 2019; 48:3338-3348. [PMID: 30778457 DOI: 10.1039/c8dt04849e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexes of divalent ytterbium (1) and europium (2) with a dianionic o-amidophenolate ligand were prepared by both the direct reduction of 4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-iminobenzoquinone (dpp-IQ) and the salt metathesis reaction of potassium o-amidophenolate with LnI2 (Ln = Yb, Eu). Oxidation of o-amidophenolates 1, 2 with one equivalent of dpp-IQ as well as the salt metathesis reaction of potassium o-iminosemiquinolate with LnI2 afforded ligand mixed-valent o-iminosemiquinonato-amidophenolato complexes of trivalent ytterbium (3) and europium (4). All novel complexes 1-4 were fully characterized, including the solid state structures of 1 and 2 determined by single crystal X-ray diffraction. The magnetic properties of paramagnetic 2-4 were examined.
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Affiliation(s)
- Svetlana V Klementyeva
- Kazan Federal University, A.M. Butlerov Institute of Chemistry, 420008, Kremlevskaya str. 29/1, Kazan, Russia.
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61
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Chiu T, Chin W, Guo J, Liang C, Lin P. A Dinuclear Dysprosium Complex as an Air‐Stable and Recyclable Catalyst: Applications in the Deacetylation of Carbohydrate, Aliphatic, and Aromatic Molecules. Chem Asian J 2019; 14:627-633. [DOI: 10.1002/asia.201801652] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/23/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Ting‐Yu Chiu
- Department of ChemistryNational Chung Hsing University Taichung 402 Taiwan
| | - Wei Chin
- Department of ChemistryNational Chung Hsing University Taichung 402 Taiwan
| | - Jiun‐Rung Guo
- Department of ChemistryNational Chung Hsing University Taichung 402 Taiwan
| | - Chien‐Fu Liang
- Department of ChemistryNational Chung Hsing University Taichung 402 Taiwan
| | - Po‐Heng Lin
- Department of ChemistryNational Chung Hsing University Taichung 402 Taiwan
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62
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Zhao WL, Li M, Lu HY, Chen CF. Advances in helicene derivatives with circularly polarized luminescence. Chem Commun (Camb) 2019; 55:13793-13803. [DOI: 10.1039/c9cc06861a] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This review summarizes the recent research progress of helicenes and their derivatives with circularly polarized luminescence properties.
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Affiliation(s)
- Wen-Long Zhao
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Meng Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Hai-Yan Lu
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Chuan-Feng Chen
- University of Chinese Academy of Sciences
- Beijing 100049
- China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
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63
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Taniguchi T, Tsubouchi A, Imai Y, Yuasa J, Oguri H. Chiroptical Inversion of Europium(III) Complexes by Changing a Remote Stereogenic Center of a C2-Symmetric Bispyrrolidinoindoline Manifold. J Org Chem 2018; 83:15284-15296. [DOI: 10.1021/acs.joc.8b02550] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tomoaki Taniguchi
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Akira Tsubouchi
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Yuki Imai
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Hiroki Oguri
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
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64
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Hashimoto Y, Abe R, Morita N, Tamura O. Inverse-electron-demand Diels-Alder reactions of α,β-unsaturated hydrazones with 3-methoxycarbonyl α-pyrones. Org Biomol Chem 2018; 16:8913-8916. [PMID: 30422144 DOI: 10.1039/c8ob02132e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inverse-electron-demand Diels-Alder reactions of 3-electron-withdrawing group substituted α-pyrones with α,β-unsaturated hydrazones as electron-rich counterparts are catalyzed by Eu(hfc)3 to afford bicyclic lactone cycloadducts. This is an example of umpolung cycloaddition based on functional transformation of carbonyls to hydrazones. A subsequent dehydrazonation reaction enables indirect synthesis of carbonyl group-containing bicyclic lactones, which cannot be easily obtained by the cycloaddition of α-pyrones and enals.
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65
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Kurteva VB, Lubenov LA, Shivachev BL, Nikolova RP, Fromm KM. Betti Bases from 4‐(3‐Pyridazo)‐1‐naphthol: Synthesis, Coordination Behaviour and Unusual Substitution Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201802745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vanya B. Kurteva
- Institute of Organic Chemistry with Centre of PhytochemistryBulgarian Academy of Sciences Acad. G. Bonchev street, bl. 9, 1113 Sofia Bulgaria
| | - Lubomir A. Lubenov
- Institute of Organic Chemistry with Centre of PhytochemistryBulgarian Academy of Sciences Acad. G. Bonchev street, bl. 9, 1113 Sofia Bulgaria
| | - Boris L. Shivachev
- Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”Bulgarian Academy of Sciences Acad. G. Bonchev street, bl. 107, 1113 Sofia Bulgaria
| | - Rositsa P. Nikolova
- Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”Bulgarian Academy of Sciences Acad. G. Bonchev street, bl. 107, 1113 Sofia Bulgaria
| | - Katharina M. Fromm
- Department of ChemistryUniversity of Fribourg Chemin du Musée 9, CH-1700 Fribourg Switzerland
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66
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A robust zirconium amino acid metal-organic framework for proton conduction. Nat Commun 2018; 9:4937. [PMID: 30467390 PMCID: PMC6250719 DOI: 10.1038/s41467-018-07414-4] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/29/2018] [Indexed: 12/31/2022] Open
Abstract
Proton conductive materials are of significant importance and highly desired for clean energy-related applications. Discovery of practical metal-organic frameworks (MOFs) with high proton conduction remains a challenge due to the use of toxic chemicals, inconvenient ligand preparation and complication of production at scale for the state-of-the-art candidates. Herein, we report a zirconium-MOF, MIP-202(Zr), constructed from natural α-amino acid showing a high and steady proton conductivity of 0.011 S cm-1 at 363 K and under 95% relative humidity. This MOF features a cost-effective, green and scalable preparation with a very high space-time yield above 7000 kg m-3 day-1. It exhibits a good chemical stability under various conditions, including solutions of wide pH range and boiling water. Finally, a comprehensive molecular simulation was carried out to shed light on the proton conduction mechanism. All together these features make MIP-202(Zr) one of the most promising candidates to approach the commercial benchmark Nafion.
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67
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Górecki M, Carpita L, Arrico L, Zinna F, Di Bari L. Chiroptical methods in a wide wavelength range for obtaining Ln 3+ complexes with circularly polarized luminescence of practical interest. Dalton Trans 2018; 47:7166-7177. [PMID: 29774898 DOI: 10.1039/c8dt00865e] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We studied enantiopure chiral trivalent lanthanide (Ln3+ = La3+, Sm3+, Eu3+, Gd3+, Tm3+, and Yb3+) complexes with two fluorinated achiral tris(β-diketonate) ligands (HFA = hexafluoroacetylacetonate and TTA = 2-thenoyltrifluoroacetonate), incorporating a chiral bis(oxazolinyl)pyridine (PyBox) unit as a neutral ancillary ligand, by the combined use of optical and chiroptical methods, ranging from UV to IR both in absorption and circular dichroism (CD), and including circularly polarized luminescence (CPL). Ultimately, all the spectroscopic information is integrated into a total and a chiroptical super-spectrum, which allows one to characterize a multidimensional chemical space, spanned by the different Ln3+ ions, the acidity and steric demand of the diketone and the chirality of the PyBox ligand. In all cases, the Ln3+ ions endow the systems with peculiar chiroptical properties, either allied to f-f transitions or induced by the metal onto the ligand. In more detail, we found that Sm3+ complexes display interesting CPL features, which partly superimpose and partly integrate the more common Eu3+ properties. Especially, in the context of security tags, the pair Sm/Eu may be a winning choice for chiroptical barcoding.
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Affiliation(s)
- Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy.
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68
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Lanthanide(III) and yttrium(III) coordination compounds of diastereomeric (2+2) macrocyclic imines derived from 2,6-diformylpyridine and trans-1,2-diaminocyclopentane. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.02.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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69
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Qiu X, Wang X, Hou S, Ma H, Tan Y. New lanthanide-based complexes constructed from cucurbit[6]uril: Synthesis, structures and properties. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1463096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Xiumin Qiu
- The Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan, PR China
| | - Xin Wang
- The Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan, PR China
| | - Shengzhen Hou
- The Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan, PR China
| | - Haili Ma
- The Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan, PR China
| | - Yebang Tan
- The Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan, PR China
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, PR China
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70
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Hashimoto Y, Nakashima T, Yamada M, Yuasa J, Rapenne G, Kawai T. Hierarchical Emergence and Dynamic Control of Chirality in a Photoresponsive Dinuclear Complex. J Phys Chem Lett 2018; 9:2151-2157. [PMID: 29641885 DOI: 10.1021/acs.jpclett.8b00690] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Chiroptical photoswitches are of interest from a viewpoint of applications in advanced information technologies. We report dynamic on-off photoswitching of circularly polarized luminescence (CPL) in a binuclear europium complex system. Two coordination units are arranged closely in a chiral fashion by a photoresponsive ligand with a one-handed helical structure. The chirality in the helical scaffold is hierarchically transferred to the chirality in nine-coordinate complex sites. The chiral close arrangement of complex units induces the enrichment of a specific chiral coordination structure in the nine-coordinate europium sites. The chiral arrangement of complex units is switched in conjunction with the photoinduced helix-nonhelix structural change in the photoresponsive framework, demonstrating on-off switching of CPL with high contrast.
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Affiliation(s)
- Yuichiro Hashimoto
- Graduate School of Materials Science , Nara Institute of Science and Technology , Ikoma, Nara 630-0192 , Japan
| | - Takuya Nakashima
- Graduate School of Materials Science , Nara Institute of Science and Technology , Ikoma, Nara 630-0192 , Japan
| | - Miku Yamada
- Graduate School of Materials Science , Nara Institute of Science and Technology , Ikoma, Nara 630-0192 , Japan
| | - Junpei Yuasa
- Department of Applied Chemistry , Tokyo University of Science , Kagurazaka, Shinjuku , Tokyo 162-8061 , Japan
| | - Gwénaël Rapenne
- Graduate School of Materials Science , Nara Institute of Science and Technology , Ikoma, Nara 630-0192 , Japan
- NAIST-CEMES International Collaborative Laboratory, CEMES-CNRS , 29 rue Jeanne Marvig , BP94347, 31055 Toulouse , France
| | - Tsuyoshi Kawai
- Graduate School of Materials Science , Nara Institute of Science and Technology , Ikoma, Nara 630-0192 , Japan
- NAIST-CEMES International Collaborative Laboratory, CEMES-CNRS , 29 rue Jeanne Marvig , BP94347, 31055 Toulouse , France
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71
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Su K, Wu M, Wang W, Zhou M, Yuan D, Hong M. 3D metal-organic frameworks based on lanthanide-seamed dimeric pyrogallol[4]arene nanocapsules. Sci China Chem 2018. [DOI: 10.1007/s11426-017-9220-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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72
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Sugimoto M, Liu XL, Tsunega S, Nakajima E, Abe S, Nakashima T, Kawai T, Jin RH. Circularly Polarized Luminescence from Inorganic Materials: Encapsulating Guest Lanthanide Oxides in Chiral Silica Hosts. Chemistry 2018; 24:6519-6524. [DOI: 10.1002/chem.201705862] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Masumi Sugimoto
- Department of Material and Life chemistry; Kanagawa University; 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Xin-Ling Liu
- Department of Material and Life chemistry; Kanagawa University; 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Seiji Tsunega
- Department of Material and Life chemistry; Kanagawa University; 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Erika Nakajima
- Department of Material and Life chemistry; Kanagawa University; 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Shunsuke Abe
- Department of Material and Life chemistry; Kanagawa University; 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
| | - Takuya Nakashima
- Graduate School of Materials Science; Nara Institute of Science and Technology, NAIST, 8916-5, Takayama-cho, Ikoma; Nara 630-0192, Nara Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science; Nara Institute of Science and Technology, NAIST, 8916-5, Takayama-cho, Ikoma; Nara 630-0192, Nara Japan
| | - Ren-Hua Jin
- Department of Material and Life chemistry; Kanagawa University; 3-27-1 Rokkakubashi, Kanagawa-ku Yokohama 221-8686 Japan
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73
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Dual catalysis for enantioselective convergent synthesis of enantiopure vicinal amino alcohols. Nat Commun 2018; 9:410. [PMID: 29379007 PMCID: PMC5789022 DOI: 10.1038/s41467-017-02698-4] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 12/13/2017] [Indexed: 12/13/2022] Open
Abstract
Enantiopure vicinal amino alcohols and derivatives are essential structural motifs in natural products and pharmaceutically active molecules, and serve as main chiral sources in asymmetric synthesis. Currently known asymmetric catalytic protocols for this class of compounds are still rare and often suffer from limited scope of substrates, relatively low regio- or stereoselectivities, thus prompting the development of more effective methodologies. Herein we report a dual catalytic strategy for the convergent enantioselective synthesis of vicinal amino alcohols. The method features a radical-type Zimmerman–Traxler transition state formed from a rare earth metal with a nitrone and an aromatic ketyl radical in the presence of chiral N,N′-dioxide ligands. In addition to high level of enantio- and diastereoselectivities, our synthetic protocol affords advantages of simple operation, mild conditions, high-yielding, and a broad scope of substrates. Furthermore, this protocol has been successfully applied to the concise synthesis of pharmaceutically valuable compounds (e.g., ephedrine and selegiline). Chiral vicinal amino alcohols are found in many bioactive compounds and may serve as chiral ligands. Here, the authors report a photocatalytic enantioselective cross-coupling of nitrones with aromatic aldehydes with a chiral ligand-coordinated rare earth ion synergistically producing enantiopure vicinal amino alcohols.
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74
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Ma L, Zhang Q, Wu H, Yang J, Liu YY, Ma JF. Multifunctional Luminescence Sensors Assembled with Lanthanide and a Cyclotriveratrylene-Based Ligand. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700874] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Li Ma
- Key Laboratory of Polyoxometalate Science; Department of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Qin Zhang
- Key Laboratory of Polyoxometalate Science; Department of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Hua Wu
- College of Science; Nanjing Agricultural University; 210095 Nanjing P. R. China
| | - Jin Yang
- Key Laboratory of Polyoxometalate Science; Department of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Ying-Ying Liu
- Key Laboratory of Polyoxometalate Science; Department of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Jian-Fang Ma
- Key Laboratory of Polyoxometalate Science; Department of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
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75
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Nie K, Wang C, Han Y, Zhang J, Yao Y. Lanthanide complexes supported by phenolate-possessing aroylhydrazone: Synthesis, characterization and lactides polymerization. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.06.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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76
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Gupta SK, Bhat GA, Murugavel R. Lanthanide Organophosphate Spiro Polymers: Synthesis, Structure, and Magnetocaloric Effect in the Gadolinium Polymer. Inorg Chem 2017; 56:9071-9083. [DOI: 10.1021/acs.inorgchem.7b01100] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sandeep K. Gupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India 400076
| | - Gulzar A. Bhat
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India 400076
| | - Ramaswamy Murugavel
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India 400076
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77
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Atzeri C, Marzaroli V, Quaretti M, Travis JR, Di Bari L, Zaleski CM, Tegoni M. Elucidation of 1H NMR Paramagnetic Features of Heterotrimetallic Lanthanide(III)/Manganese(III) 12-MC-4 Complexes. Inorg Chem 2017; 56:8257-8269. [PMID: 28677961 DOI: 10.1021/acs.inorgchem.7b00970] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The paramagnetic one-dimensional 1H NMR spectra of twelve LnIIINaI(OAc)4[12-MCMnIII(N)shi-4] complexes, where LnIII is PrIII-YbIII (except PmIII) and YIII, are reported. Their solid-state isostructural nature is confirmed in methanol-d4 solution, as a similar pattern in the 1H NMR spectra is observed along the series. Notably, a relatively well-resolved spectrum is reported for the GdIII complex. The chemical shift data are analyzed using the "all lanthanides" method, and the Fermi contact and pseudo-contact contributions are calculated for the lanthanide-induced shift (LIS). For the TbIII-YbIII complexes, the pseudo-contact contributions are typically 1 order of magnitude higher than the Fermi contact contributions; however, for the GdIII complex, the Fermi contact is the main contribution to the paramagnetic chemical shift. For the methyl protons of the axial acetate (-OAc) ligands, the LIS is opposite in sign, with respect to that of the aromatic salicylhydroximate (shi3-) protons, because of structural rearrangements that occur upon dissociation of the NaI cation in solution. The calculated crystal field parameters (BLn) for the TbIII (360 cm-1), DyIII (250 cm-1), HoIII (380 cm-1), ErIII (410 cm-1), TmIII (620 cm-1), and YbIII (380 cm-1) complexes are not constant, likely as a consequence of the inaccuracy of the Bleaney's constants and, to a smaller extent, the small structural changes that occur in solution. Overall, the metallacrown scaffold retains structural integrity and similarity in solution for the entire series; however, small structural features, which do not affect the overall similarity, do likely occur.
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Affiliation(s)
- Corrado Atzeri
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma , Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Vittoria Marzaroli
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma , Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Martina Quaretti
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma , Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Jordan R Travis
- Department of Chemistry and Biochemistry, Shippensburg University , Shippensburg, Pennsylvania 17257-2200, United States
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry, University of Pisa , Via Risorgimento 35, I-56126 Pisa, Italy
| | - Curtis M Zaleski
- Department of Chemistry and Biochemistry, Shippensburg University , Shippensburg, Pennsylvania 17257-2200, United States
| | - Matteo Tegoni
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma , Parco Area delle Scienze 11A, 43124 Parma, Italy
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78
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Kreidt E, Dee C, Seitz M. Chiral Resolution of Lanthanoid Cryptates with Extreme Configurational Stability. Inorg Chem 2017; 56:8752-8754. [DOI: 10.1021/acs.inorgchem.7b01407] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elisabeth Kreidt
- Institute of Inorganic
Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Carolin Dee
- Institute of Inorganic
Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Michael Seitz
- Institute of Inorganic
Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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79
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Skokan SR, Reeson MM, Oshin KD, Vinokur AI, Desper JA, Levy CJ. Crystal structure of {( R)- N2-[(benzo[ h]quinolin-2-yl)meth-yl]- N2'-[(benzo[ h]quinolin-2-yl)methyl-idene]-1,1'-binaphthyl-2,2'-di-amine-κ 4N, N', N'', N'''}(trifluoromethane-sulfonato-κ O)zinc(II)} trifluoromethane-sulfonate di-chloro-methane 1.5-solvate. Acta Crystallogr E Crystallogr Commun 2017; 73:949-953. [PMID: 28775858 PMCID: PMC5499266 DOI: 10.1107/s2056989017008027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 05/30/2017] [Indexed: 11/10/2022]
Abstract
The zinc(II) atom in the title compound, [Zn(C48H31N4)(CF3SO3)](CF3SO3)·1.5CH2Cl2, adopts a distorted five-coordinate square-pyramidal geometry. It is coordinated by one tri-fluoro-methane-sulfonate ligand and four N atoms of the N2-[(benzo[h]quinolin-2-yl)meth-yl]-N2'-[(benzo[h]quinolin-2-yl)methyl-idene]-1,1'-binaphthyl-2,2'-di-amine ligand. The complex is present as a single-stranded P-helimer monohelical structure incorporating π-π and/or σ-π inter-actions. One of the imine bonds present in the original ligand framework is reduced, leading to variations in bond lengths and torsion angles for each side of the ligand motif. The imine-bond reduction also affects the bond lengths involving the metal atom with the N-donor atoms located on the imine bond. There are two mol-ecules of the complex in the asymmetric unit. One of the mol-ecules exhibits positional disorder within the coordinating tri-fluoro-methane-sulfonate ion making the mol-ecules symmetric-ally non-equivalent.
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Affiliation(s)
- Shayna R. Skokan
- Department of Chemistry, Creighton University, Omaha, NE 68102, USA
| | - Monica M. Reeson
- Department of Chemistry, Creighton University, Omaha, NE 68102, USA
| | - Kayode D. Oshin
- Department of Chemistry, Creighton University, Omaha, NE 68102, USA
| | | | - John A. Desper
- Department of Chemistry, Kansas State University, Manhattan, KS 66506, USA
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80
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81
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Fomina IG, Ilyukhin AB, Zavorotny YS, Gerasimova VI, Taidakov IV, Datskevich NP, Vitukhnovskii AG, Dobrokhotova ZV, Eremenko IL. Binuclear europium(III) pivalates with 4,7-diphenyl-1,10-phenanthroline: Controllable synthesis, unique structural transitions, and remarkable luminescence. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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82
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Armelao L, Dell’Amico DB, Bellucci L, Bottaro G, Di Bari L, Labella L, Marchetti F, Samaritani S, Zinna F. Circularly Polarized Luminescence of Silica-Grafted Europium Chiral Derivatives Prepared through a Sequential Functionalization. Inorg Chem 2017; 56:7010-7018. [DOI: 10.1021/acs.inorgchem.7b00611] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lidia Armelao
- Dipartimento di Scienze
Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
| | - Daniela Belli Dell’Amico
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Luca Bellucci
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
- Dipartimento di Scienze
Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
| | - Gregorio Bottaro
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
| | - Lorenzo Di Bari
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Luca Labella
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Simona Samaritani
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Francesco Zinna
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa and CIRCC, via
Giuseppe Moruzzi 13, I-56124 Pisa, Italy
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83
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Sharma S, Chauhan M, Jamsheera A, Tabassum S, Arjmand F. Chiral transition metal complexes: Synthetic approach and biological applications. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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84
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Shen FF, Chen K, Hua ZY, Wang Y, Xu J, Chen MD, Zhang YQ, Tao Z. Adducts of aqua complexes of Ln3+ with a di-hydroxylated symmetrical octamethyl-substituted cucurbituril: potential applications for isolation of heavier lanthanides. CrystEngComm 2017. [DOI: 10.1039/c7ce01365e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, we have demonstrated that t(OH)2OMeQ[6] could be used for isolating heavy lanthanides from their lighter counterparts.
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Affiliation(s)
- Fang-Fang Shen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
| | - Kai Chen
- Jiangsu 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
| | - Zi-Yi Hua
- Jiangsu 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
| | - Yuan Wang
- Jiangsu 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
| | - Jing Xu
- Jiangsu 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
| | - Min-Dong Chen
- Jiangsu 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
| | - Yun-Qian Zhang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
- Guizhou University
- Guiyang
- China
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85
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Shen G, Gou F, Cheng J, Zhang X, Zhou X, Xiang H. Chiral and non-conjugated fluorescent salen ligands: AIE, anion probes, chiral recognition of unprotected amino acids, and cell imaging applications. RSC Adv 2017. [DOI: 10.1039/c7ra08267c] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Chiral and non-conjugated fluorescent salen ligands with a cyclohexane/1,2-diphenylethane bridge have small π-conjugated systems but exhibit strong aggregation/anion/amino acid-induced emission.
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Affiliation(s)
- Guangyu Shen
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Fei Gou
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | | | | | - Xiangge Zhou
- College of Chemistry
- Sichuan University
- Chengdu
- China
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86
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Li N, García-Rodríguez R, Matthews PD, Luo HK, Wright DS. Synthesis, structure and paramagnetic NMR analysis of a series of lanthanide-containing [LnTi6O3(OiPr)9(salicylate)6] cages. Dalton Trans 2017; 46:4287-4295. [DOI: 10.1039/c7dt00049a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The influence of paramagnetic Ln3+ ions on the NMR behaviour is investigated via a series of new isostructural lanthanide-containing cages with the general formula [LnTi6O3(OiPr)9(salicylate)6] (Ln = La–Er).
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Affiliation(s)
- Ning Li
- Department of Chemistry
- University of Cambridge
- UK
- Institute of Materials Research and Engineering
- Agency for Science
| | | | - Peter D. Matthews
- Department of Chemistry
- University of Cambridge
- UK
- School of Chemistry
- University of Manchester
| | - He-Kuan Luo
- Institute of Materials Research and Engineering
- Agency for Science
- Technology and Research
- Singapore
- Singapore
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87
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Duan YL, He JX, Wang W, Zhou JJ, Huang Y, Yang Y. Synthesis and characterization of dinuclear rare-earth complexes supported by amine-bridged bis(phenolate) ligands and their catalytic activity for the ring-opening polymerization of l-lactide. Dalton Trans 2016; 45:10807-20. [PMID: 27294827 DOI: 10.1039/c6dt01486k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of amine-bridged bis(phenolate) protio-ligands N,N-bis(3,5-di-tert-butyl-2-hydroxybenzyl)aminoacetic acid (L(1)-H3) and N,N-bis[3,5-bis(α,α'-dimethylbenzyl)-2-hydroxybenzyl]aminoacetic acid (L(2)-H3), with 1 equiv. M[N(SiMe3)2]3 (M = La, Nd, Sm, Gd, Y) in THF at room temperature yielded the neutral rare-earth complexes [M2(L)2(THF)4] (L = L(1), M = La (), Nd (), Sm (), Gd (), Y (); L = L(2), M = La (), Nd (), Sm (), Gd (), Y ()). All of these complexes were characterized by single-crystal X-ray diffraction, elemental analysis and in the case of yttrium and lanthanum complexes, (1)H NMR spectroscopy. The molecular structure of revealed dinuclear species in which the eight-coordinate lanthanum centers were bonded to two oxygen atoms of two THF molecules, to three oxygen atoms and one nitrogen atom of one L(1) ligand, and two oxygen atoms of the carboxyl group of another. Complexes were also dinuclear species containing seven-coordinate metal centers similar to , albeit with bonding to one rather than two carboxyl group oxygens of another ligand. Further treatment of with excess benzyl alcohol provided dinuclear complex [La2(L(1))2(BnOH)6] (), in which each lanthanum ion is eight-coordinate, bonded to three oxygen atoms and one nitrogen atom of one ligand, three oxygen atoms of three BnOH molecules, as well as one oxygen atom of bridging carboxyl group of the other ligand. In the presence of BnOH, complexes efficiently catalyzed the ring-opening polymerization of l-lactide in a controlled manner and gave polymers with relatively narrow molecular weight distributions. The kinetic and mechanistic studies associated with the ROP of l-lactide using /BnOH initiating system have been performed.
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Affiliation(s)
- Yu-Lai Duan
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Jia-Xuan He
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Wei Wang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Jing-Jing Zhou
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Yong Huang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
| | - Ying Yang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, P. R. China.
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88
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Soncini A, Calvello S. Room Temperature Chiral Discrimination in Paramagnetic NMR Spectroscopy. PHYSICAL REVIEW LETTERS 2016; 116:163001. [PMID: 27152797 DOI: 10.1103/physrevlett.116.163001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Indexed: 05/13/2023]
Abstract
A recently proposed theory of chiral discrimination in NMR spectroscopy based on the detection of a molecular electric polarization P rotating in a plane perpendicular to the NMR magnetic field [A. D. Buckingham, J. Chem. Phys. 140, 011103 (2014)] is generalized here to paramagnetic systems. Our theory predicts new contributions to P, varying as the square of the inverse temperature. Ab initio calculations for ten Dy^{3+} complexes, at 293 K, show that, in strongly anisotropic paramagnetic molecules, P can be more than 1000 times larger than in diamagnetic molecules, making paramagnetic NMR chiral discrimination amenable to room temperature detection.
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Affiliation(s)
- Alessandro Soncini
- School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Simone Calvello
- School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
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89
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Robinson JR, Qiao Y, Gu J, Carroll PJ, Walsh PJ, Schelter EJ. The role of dynamic ligand exchange in the oxidation chemistry of cerium(iii). Chem Sci 2016; 7:4537-4547. [PMID: 30155100 PMCID: PMC6016327 DOI: 10.1039/c5sc04897d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 03/22/2016] [Indexed: 01/09/2023] Open
Abstract
We report the exchange processes and reactivity of 1-Ce(het), which establish the effects of ligand redistribution and ligand reorganization in CeIII oxidation chemistry.
The CeIII/IV couple is useful for many applications in organic, inorganic, and materials chemistry. However, attaining a general method to access both oxidations states through reversible solution redox chemistry remains challenging. Herein we report the synthesis, characterization, and oxidation chemistry of the novel Ce/Li REMB heterochiral diastereomer, 1-Ce(het). The solution exchange processes of 1-RE(het) (RE = Ce and Yb) were investigated to estimate rates of ligand and cation exchange relevant in homochiral and heterochiral frameworks. A detailed mechanistic investigation following the solution dynamics of 1-Ce(het) revealed reactivity controlled both by ligand reorganization and redistribution processes. Ligand reorganization was responsible for the kinetics associated with the chemical oxidation reaction, whereas ligand redistribution and exchange dictated the isolated products.
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Affiliation(s)
- Jerome R Robinson
- P. Roy and Diana T. Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , PA 19104 , USA . ;
| | - Yusen Qiao
- P. Roy and Diana T. Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , PA 19104 , USA . ;
| | - Jun Gu
- P. Roy and Diana T. Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , PA 19104 , USA . ;
| | - Patrick J Carroll
- P. Roy and Diana T. Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , PA 19104 , USA . ;
| | - Patrick J Walsh
- P. Roy and Diana T. Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , PA 19104 , USA . ;
| | - Eric J Schelter
- P. Roy and Diana T. Vagelos Laboratories , Department of Chemistry , University of Pennsylvania , Philadelphia , PA 19104 , USA . ;
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90
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Castro G, Regueiro-Figueroa M, Esteban-Gómez D, Pérez-Lourido P, Platas-Iglesias C, Valencia L. Magnetic Anisotropies in Rhombic Lanthanide(III) Complexes Do Not Conform to Bleaney’s Theory. Inorg Chem 2016; 55:3490-7. [DOI: 10.1021/acs.inorgchem.5b02918] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Goretti Castro
- Departamento de Química Inorgánica,
Facultad de Ciencias, Universidade de Vigo, As Lagoas, Pontevedra, Marcosende 36310, Spain
| | - Martín Regueiro-Figueroa
- Centro
de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - David Esteban-Gómez
- Centro
de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Paulo Pérez-Lourido
- Departamento de Química Inorgánica,
Facultad de Ciencias, Universidade de Vigo, As Lagoas, Pontevedra, Marcosende 36310, Spain
| | - Carlos Platas-Iglesias
- Centro
de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Laura Valencia
- Departamento de Química Inorgánica,
Facultad de Ciencias, Universidade de Vigo, As Lagoas, Pontevedra, Marcosende 36310, Spain
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91
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Wang Y, Wu WS, Huang ML. Heterometal–organic frameworks: Three novel copper(II)–lanthanide(III) 15-metallacrown-5 complexes based on pyrazinohydroxamic acid as new multiple-binding pentagonal platform. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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92
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Wang Z, Yang H, He P, He Y, Zhao J, Tang H. A highly-efficient blue-light excitable red phosphor: intramolecular π-stacking interactions in one dinuclear europium(iii) complex. Dalton Trans 2016; 45:2839-44. [PMID: 26673545 DOI: 10.1039/c5dt04407c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of ternary dinuclear europium(iii) complexes [Eu2(2,7-BTFDBC)3-n(DBM)2n(Phen)2] (n = 0, 1, or 2) were synthesized by using 2,7-bis(4'4'4'-trifluoro-1,3-dioxobutyl)-(9-ethyl-9H-carbazole) (2,7-BTFDBC), dibenzoylmethane (DBM), 1,10-phenanthroline (Phen) and europium(iii) ions. All these complexes display a broad excitation band in the blue region and high intensity emission with high colour purity. The intensity of emission significantly increases with the increase of DBM in [Eu2(2,7-BTFDBC)3-n(DBM)2n(Phen)2] (n = 0, 1, or 2). The theoretical predictions of the molecular geometry and electronic absorption spectrum of [Eu2(2,7-BTFDBC)(DBM)4(Phen)2] confirm that the pendant phenyl domains engage in multiple T-shaped and parallel-displaced π-stacking interactions with the coordination sphere of two europium(iii) centers. Using [Eu2(2,7-BTFDBC)(DBM)4(Phen)2] as a red phosphor, a single red LED has been obtained with a ∼460 nm-emitting GaN chip.
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Affiliation(s)
- Zhengliang Wang
- Key Laboratory of Comprehensive Utilization of Mineral Resource in Ethnic Regions, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, School of Chemistry & Environment, Yunnan Minzu University, Kunming, 650500, P. R. China.
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93
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Kefalidis CE, Castro L, Perrin L, Rosal ID, Maron L. New perspectives in organolanthanide chemistry from redox to bond metathesis: insights from theory. Chem Soc Rev 2016; 45:2516-43. [DOI: 10.1039/c5cs00907c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A fifteen year contribution of computational studies carried out in close synergy with experiments is summarized.
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94
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Hu YQ, Li MQ, Li T, Wang YY, Zheng Z, Zheng YZ. An alkali-ion insertion approach to structurally transform metal–organic frameworks. CrystEngComm 2016. [DOI: 10.1039/c6ce00540c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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95
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Shaw BK, Das M, Bhattacharyya A, Ghosh BN, Roy S, Mandal P, Rissanen K, Chattopadhyay S, Saha SK. Field-induced ferromagnetism due to magneto-striction in 1-D helical chains. RSC Adv 2016. [DOI: 10.1039/c5ra27040e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Under high magnetic field and at lower temperature orthogonality of d-orbitals of Cu(ii) centers increases significantly due to contraction of lattice parameters giving rise to long range ferromagnetic ordering in the helical chain.
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Affiliation(s)
- Bikash Kumar Shaw
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata – 700032
- India
| | - Mithun Das
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Anik Bhattacharyya
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Biswa Nath Ghosh
- Department of Chemistry
- Nanoscience Center
- University of Jyväskylä
- 40014 Jyväskylä
- Finland
| | - Susmita Roy
- Saha Institute of Nuclear Physics
- Calcutta 700 064
- India
| | | | - Kari Rissanen
- Department of Chemistry
- Nanoscience Center
- University of Jyväskylä
- 40014 Jyväskylä
- Finland
| | | | - Shyamal Kumar Saha
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata – 700032
- India
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96
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Bag P, Ghosh AB, Dutta AK, Flörke U, Nag K. Sandwich-type lanthanide(III) complexes of a tetraiminodiphenol macrocyclic ligand derived from 4-methyl-2,6-diformylphenol and 1,3-diaminopropane: structure, NMR and luminescence. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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97
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Seo MS, Kim H. 1H NMR Chiral Analysis of Charged Molecules via Ion Pairing with Aluminum Complexes. J Am Chem Soc 2015; 137:14190-5. [DOI: 10.1021/jacs.5b09555] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Min-Seob Seo
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Hyunwoo Kim
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center
for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Korea
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98
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Bian G, Yang S, Huang H, Zong H, Song L, Fan H, Sun X. Chirality sensing of tertiary alcohols by a novel strong hydrogen-bonding donor - selenourea. Chem Sci 2015; 7:932-938. [PMID: 29899892 PMCID: PMC5953003 DOI: 10.1039/c5sc03780h] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/20/2015] [Indexed: 12/19/2022] Open
Abstract
In this paper, a novel type of chiral bisselenourea sensor was first synthesized and used as a strong hydrogen-bonding donor for highly efficient chiral recognition of a diverse range of tertiary alcohols.
Chemical sensors are powerful for the fast recognition of chiral compounds. However, the established sensing systems are less effective for chiral tertiary alcohols. The chiral tertiary alcohol group is an important structural unit in natural products and drug molecules, and its enantioselective recognition represents a significant and challenging task. In this paper, a novel type of chiral bisselenourea sensor was first synthesized and used as a strong hydrogen-bonding donor for highly efficient chiral recognition of a diverse range of tertiary alcohols. The obtained sharply split NMR signals are well-distinguishable with a large (up to 0.415 ppm) chemical shift nonequivalence. The NMR signal of the hydroxyl hydrogen atom was first employed for enantiomeric excess determination of tertiary alcohols, giving accurate results with <2% absolute errors. The 2D NOESY spectra and computational studies suggest that the geometrical differentiation of the formed diastereomeric complexes between the sensor and tertiary alcohols enables the chiral discrimination of the hydroxyl hydrogen signals of the tertiary alcohol in the 1H NMR spectrum.
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Affiliation(s)
- Guangling Bian
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China .
| | - Shiwei Yang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China .
| | - Huayin Huang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China .
| | - Hua Zong
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China .
| | - Ling Song
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China .
| | - Hongjun Fan
- The State Key Lab of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics (iCheM) , Chinese Academy of Sciences , Dalian , Liaoning 116023 , P. R. China .
| | - Xiaoqiang Sun
- School of Petrochemical Engineering , Changzhou University , Changzhou , Jiangsu 213164 , P. R. China .
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99
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Hatanaka M, Morokuma K. How Can Fluctional Chiral Lanthanide (III) Complexes Achieve a High Stereoselectivity in Aqueous Mukaiyama-Aldol Reaction? ACS Catal 2015. [DOI: 10.1021/acscatal.5b00438] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Miho Hatanaka
- Fukui Institute for Fundamental
Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental
Chemistry, Kyoto University, Kyoto 606-8103, Japan
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100
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Zheng XY, Zhang H, Cao LY, Kong XJ, Long LS, Zheng LS. Chirality detection of two enantiomorphic 3D lanthanide coordination polymers by vibrational circular dichroism spectra. Dalton Trans 2015; 44:5299-302. [PMID: 25710701 DOI: 10.1039/c5dt00404g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two enantiomorphic 3D lanthanide coordination polymers of {[Dy5(L)4(H2O)10][Dy(H2O)7][Na(H2O)5]}·(ClO4)7·(H2O)15 (1a for R and 1b for S) with chiral helical chains were synthesized based on an achiral ligand N-(2-hydroxyethyl)ethylenediamine-N,N',N'-triacetic acid (H3L) and Dy(ClO4)3. Crystal analysis revealed that 1a and 1b were crystallized in chiral space groups P4132 and P4332, respectively. The absolute configurations of the two structures were evidenced by vibrational circular dichroism (VCD) spectra with one single crystal sample.
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Affiliation(s)
- Xiu-Ying Zheng
- State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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