1
|
Stimuli-responsive chirality inversion of metallohelices and related dynamic metal complexes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
2
|
Complexation Behavior of Pinene–Bipyridine Ligands towards Lanthanides: The Influence of the Carboxylic Arm. CHEMISTRY 2021. [DOI: 10.3390/chemistry4010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The complexation behavior of two novel, chiral pinene–bipyridine-type ligands ((–)-HL1 and (–)-HL2) containing a carboxylic arm towards lanthanide Ln(III) (Ln = La, Eu, Lu) ions was investigated through spectroscopic methods. The association constants of the mononuclear complexes determined from the UV-Vis titrations indicated that the ligand (–)-HL1 possessing a shorter carboxylic arm formed more stable complexes compared with (–)-HL2, whose carboxylic arm had one more methylene unit. This is due to the formation of more stable seven-member metal chelate rings in the first case as compared with the eight-member metal chelate rings in the second. IR and fluorescence spectroscopy provided additional information about the structure of these complexes.
Collapse
|
3
|
Li B, Li Y, Chan MHY, Yam VWW. Phosphorescent Cyclometalated Platinum(II) Enantiomers with Circularly Polarized Luminescence Properties and Their Assembly Behaviors. J Am Chem Soc 2021; 143:21676-21684. [PMID: 34907777 DOI: 10.1021/jacs.1c10943] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Platinum(II) complexes as supramolecular luminescent materials have received considerable attention due to their unique planar structures and fascinating photophysical properties. However, the molecular design of platinum(II) complexes with impressive circularly polarized luminescence properties still remains challenging and rarely explored. Herein, we reported a series of cyclometalated platinum(II) complexes with benzaldehyde and its derived imine-containing alkynyl ligands to investigate their phosphorescent, chiroptical, and self-assembly behaviors. An isodesmic growth mechanism is found for their temperature-dependent self-assembly process. The chiral sense of the enantiomers can be transferred from the chiral alkynyl ligands to the cyclometalated platinum(II) dipyridylbenzene N^C^N chromophore and further amplified through supramolecular assembly via intermolecular noncovalent interactions. Notably, distinctive phosphorescent properties and nanostructured morphologies have been found for enantiomers 4R and 4S. Their intriguing self-assembled nanostructures and phosphorescence behaviors are supported by crystal structure determination, 1H NMR, emission, and UV-vis absorption spectroscopy, scanning electron microscopy, and X-ray powder diffraction studies.
Collapse
Affiliation(s)
- Baoning Li
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.,State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, People's Republic of China
| | - Yongguang Li
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
| | - Michael Ho-Yeung Chan
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, People's Republic of China
| | - Vivian Wing-Wah Yam
- Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.,State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, People's Republic of China
| |
Collapse
|
4
|
Zhang Y, Geng Z, Zhang Y, Xu Z, Li H, Cheng Y, Quan Y. Deep Blue Circularly Polarized Luminescence Response Behavior of an Achiral Pyrene-Based Emitter Regulated by Chiral Co-assembly Helical Nanofibers. J Phys Chem Lett 2021; 12:3767-3772. [PMID: 33844918 DOI: 10.1021/acs.jpclett.1c00865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Supramolecular co-assembly provides a brand-new powerful strategy for regulating simple organic molecules into various hierarchical nano- and microstructures as smart functional materials. In particular, chiral supramolecular assemblies with strong fluorescent emission have received extensive attention for their application as circularly polarized luminescence (CPL) emitters. Herein, we synthesized three achiral pyrene derivatives, but only the chiral co-assembly (R/S-NMe2-Py-2) can exhibit the regular and orderly helical nanofiber via π-π stacking interaction between chiral N,N'-dimethyl-binaphthyldiamine enantiomers (R/S-NMe2) and the achiral pyrene derivative (Py-2). Interestingly, this kind of 2:1 molar ratio (R/S-NMe2)2-Py-2 co-assembly with a helical nanofiber structure can emit a strong deep blue CPL signal from the achiral pyrene-based emitter, and the dissymmetry factor gem value can reach 0.027 (λem = 423 nm) in the film from spin-coating.
Collapse
Affiliation(s)
- Yuxia Zhang
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhongxing Geng
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yu Zhang
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhaoran Xu
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hang Li
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yiwu Quan
- Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| |
Collapse
|
5
|
Tan YB, Okayasu Y, Katao S, Nishikawa Y, Asanoma F, Yamada M, Yuasa J, Kawai T. Visible Circularly Polarized Luminescence of Octanuclear Circular Eu(III) Helicate. J Am Chem Soc 2020; 142:17653-17661. [PMID: 32960585 DOI: 10.1021/jacs.0c08229] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This work reports on the structural and photophysical characterization of D4-symmetrical octanuclear circular LnIII helicates, [(R)- or (S)-iPr-Pybox]8(LnIII)8(THP)8 (where Ln = Eu and Tb, THP = trianionic tris-β-diketonate, and iPr-Pybox = chiral bis(4-isopropyl-2-oxazolinyl)pyridine). X-ray crystallographic analysis revealed that the octanuclear circular helicate possesses square antiprism architecture and consists of four [(R)- or (S)-iPr-Pybox]2LnIII2(THP)2 asymmetric units arranged in a closed ring form. Ligand-to-ligand interactions between the THP and the iPr-Pybox ligands have successfully directed formation of enantiopure, homoconfigurational (Δ,Δ,Δ,Δ,Δ,Δ,Δ,Δ)-R and (Λ,Λ,Λ,Λ,Λ,Λ,Λ,Λ)-S isomers. All of the nonacoordinated LnIII ions are identical and exhibit a distorted capped square antiprism (CSAP) geometry. Upon excitation of the ligand absorption band (λ = 360 nm), the circular helicates display characteristic EuIII (red, 5D0 → 7FJ, J = 0-4) or TbIII (green, 5D4 → 7FJ, J = 6-3) core f-f luminescence. The overall emission quantum yields of the circular EuIII and TbIII helicates are 0.145 and 0.0013, respectively, in chloroform. The EuIII and TbIII complexes exhibit remarkable circularly polarized luminescence (CPL) activity at their magnetic dipole transition with observed luminescence dissymmetry factors |glum| of 1.25 (5D0 → 7F1, λ = 592 nm) and 0.25 (5D4 → 7F5, λ = 541 nm), respectively. Exceptional |glum| values of the circular EuIII helicates highlight the visible intensity difference between left and right circularly polarized emissions of R and S isomers in chloroform and PMMA thin film.
Collapse
Affiliation(s)
- Yan Bing Tan
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yoshinori Okayasu
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8061, Japan
| | - Shohei Katao
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Yoshiko Nishikawa
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Fumio Asanoma
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Mihoko Yamada
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8061, Japan
| | - Tsuyoshi Kawai
- Graduate School of Science and Technology, Division of Materials Science, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| |
Collapse
|
6
|
Doistau B, Jiménez JR, Piguet C. Beyond Chiral Organic (p-Block) Chromophores for Circularly Polarized Luminescence: The Success of d-Block and f-Block Chiral Complexes. Front Chem 2020; 8:555. [PMID: 32850617 PMCID: PMC7399180 DOI: 10.3389/fchem.2020.00555] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022] Open
Abstract
Chiral molecules are essential for the development of advanced technological applications in spintronic and photonic. The best systems should produce large circularly polarized luminescence (CPL) as estimated by their dissymmetry factor (g lum), which can reach the maximum values of -2 ≤ g lum ≤ 2 when either pure right- or left-handed polarized light is emitted after standard excitation. For matching this requirement, theoretical considerations indicate that optical transitions with large magnetic and weak electric transition dipole moments represent the holy grail of CPL. Because of their detrimental strong and allowed electric dipole transitions, popular chiral emissive organic molecules display generally moderate dissymmetry factors (10-5 ≤ g lum ≤ 10-3). However, recent efforts in this field show that g lum can be significantly enhanced when the chiral organic activators are part of chiral supramolecular assemblies or of liquid crystalline materials. At the other extreme, chiral EuIII- and SmIII-based complexes, which possess intra-shell parity-forbidden electric but allowed magnetic dipole transitions, have yielded the largest dissymmetry factor reported so far with g lum ~ 1.38. Consequently, 4f-based metal complexes with strong CPL are currently the best candidates for potential technological applications. They however suffer from the need for highly pure samples and from considerable production costs. In this context, chiral earth-abundant and cheap d-block metal complexes benefit from a renewed interest according that their CPL signal can be optimized despite the larger covalency displayed by d-block cations compared with 4f-block analogs. This essay thus aims at providing a minimum overview of the theoretical aspects rationalizing circularly polarized luminescence and their exploitation for the design of chiral emissive metal complexes with strong CPL. Beyond the corroboration that f-f transitions are ideal candidates for generating large dissymmetry factors, a special attention is focused on the recent attempts to use chiral CrIII-based complexes that reach values of g lum up to 0.2. This could pave the way for replacing high-cost rare earths with cheap transition metals for CPL applications.
Collapse
Affiliation(s)
- Benjamin Doistau
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| | - Juan-Ramón Jiménez
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva, Switzerland
| |
Collapse
|
7
|
Gregoliński J, Ślepokura K. Monomeric and dimeric nitrate lanthanide(III) and yttrium(III) coordination compounds of (2 + 2) imine macrocycle derived from 2,6-diformylpyridine and trans-1,2-diaminocyclopentane. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114433] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
8
|
Ji L, Zhao Y, Tao M, Wang H, Niu D, Ouyang G, Xia A, Liu M. Dimension-Tunable Circularly Polarized Luminescent Nanoassemblies with Emerging Selective Chirality and Energy Transfer. ACS NANO 2020; 14:2373-2384. [PMID: 32027478 DOI: 10.1021/acsnano.9b09584] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The selective interplay between dimensional morphology transition and signal transfer is an important feature for both nanomaterials and biosystems. While most of those reported examples considered either dimensional transition or signal transfer, the integrated interplay or selectivity for these two aspects in single self-assembled system has been rarely studied. Here, we report that a positively charged chiral π-building block could self-assemble into multidimensional nanostructures, which showed tunable circularly polarized luminescence (CPL). Impressively, when these CPL-active multidimensional structures interacted with two achiral dyes (positively charged ThT and negatively charged CNA), 3D nanocubes and 0D nanospheres showed neither chirality transfer nor energy transfer, while 2D nanoplates could successfully trigger a selective chirality or energy transfer depending on the charge type of acceptor dyes, which then emitted an enhanced CPL signal. This work demonstrated rational design of charged π-building block for the construction of dimension controllable and selective signal transfer self-assembly system, which might deepen the understanding the interplay of dimensional structures and signal transfer functions in natural and nano systems.
Collapse
Affiliation(s)
- Lukang Ji
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
| | - Yang Zhao
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- College of Pharmacy , Hebei University , Baoding 071002 , P.R. China
| | - Min Tao
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
| | - Hanxiao Wang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
| | - Dian Niu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
| | - Guanghui Ouyang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
| | - Andong Xia
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
- Collaborative Innovation Centre of Chemical Science and Engineering , Nankai University , Tianjin 300072 , P.R. China
| |
Collapse
|
9
|
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]
|
10
|
Zalevskaya OA, Gur'eva YA, Kutchin AV. Terpene ligands in the coordination chemistry: synthesis of metal complexes, stereochemistry, catalytic properties and biological activity. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4880] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
11
|
Imai Y, Yuasa J. Supramolecular chirality transformation driven by monodentate ligand binding to a coordinatively unsaturated self-assembly based on C 3-symmetric ligands. Chem Sci 2019; 10:4236-4245. [PMID: 31057752 PMCID: PMC6471804 DOI: 10.1039/c9sc00399a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/01/2019] [Indexed: 01/04/2023] Open
Abstract
Monodentate ligand binding is facilitated by supramolecular chirality transformations from propeller-shaped chirality into single-twist chirality by altering the self-assembly of C 3-symmetric chiral ligands. The C 3-symmetric chiral ligands (Im R 3Bz and Im S 3Bz) contain three chiral imidazole side arms (Im R and Im S ) at the 1,3,5-positions of a central benzene ring. Upon coordination to zinc ions (Zn2+), which have a tetrahedral coordination preference, the C 3-symmetric chiral ligands assemble, in a stepwise manner, into a propeller-shaped assembly with a general formula (Im( R or S ) 3Bz)4(Zn2+)3. In this structure each Zn2+ ion coordinates to the three individual imidazole side arms. The resulting assembly is formally coordinatively unsaturated (coordination number, n = 3) and capable of accepting monodentate co-ligands (imidazole: ImH2) to afford a coordinatively saturated assembly [(ImH2)3(Im R 3Bz)4(Zn2+)3]. The preformed propeller-shaped chirality is preserved during this transformation. However, an excess of the monodentate co-ligand (ImH2/Zn2+ molar ratio of ∼1.7) alters the propeller-shaped assembly into a stacked dimer assembly [(ImH2) m (Im R 3Bz)2(Zn2+)3] (m = 4-6) with single-twist chirality. This switch alters the degree of enhancement and the circular dichroism (CD) pattern, suggesting a structural transition into a chiral object with a different shape. This architectural chirality transformation presents a new approach to forming dynamic coordination-assemblies, which have transformable geometric chiral structures.
Collapse
Affiliation(s)
- 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 .
| |
Collapse
|
12
|
|
13
|
Dey B, Roy S, Mondal AK, Santra A, Konar S. Zero Field SMM Behavior and Magnetic Refrigeration in Rare Heterometallic Double Stranded Helicates of Cu2
Ln2
(Ln = Dy, Tb, Gd). Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bijoy Dey
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Subhadip Roy
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Amit Kumar Mondal
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Atanu Santra
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Sanjit Konar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| |
Collapse
|
14
|
Bing TY, Kawai T, Yuasa J. Ligand-to-Ligand Interactions That Direct Formation of D 2-Symmetrical Alternating Circular Helicate. J Am Chem Soc 2018; 140:3683-3689. [PMID: 29433303 DOI: 10.1021/jacs.7b12663] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This work demonstrates that ligand-to-ligand interactions between achiral bis-β-diketonate (BTP) and chiral bis(4-phenyl-2-oxazolinyl)pyridine [( R)- or ( S)-Ph-Pybox] are successfully directed to the fabrication of a D2-symmetrical alternating circular helicate with the general formula [( R)- or ( S)-Ph-Pybox]4(LnIII)4(BTP)6. The lanthanide(III) LnIII assemblies (LnIII4- RRRR and LnIII4- SSSS) have a nanometer-size squarelike grid (interatomic distances > 10 Å). X-ray structure analysis revealed that the circular helicate contains two double helicate LnIII2L2 units, where both show ( M)-helicity for LnIII4- RRRR and ( P)-helicity for LnIII4- SSSS, where π-π stacking interaction is present between the side arm of ( R)-Ph-Pybox (Ph1) and the adjacent BTP ligand around the EuIII metal center ( dππ = 3.636 Å: the diketonate plane···Ph1 distance). The newly obtained circular lanthanide(III) helicate exists as single and homochiral diastereomers in solution (LnIII4- RRRR and LnIII4- SSSS), exhibiting circularly dichroism (CD) and circularly polarized luminescence (CPL). Conversely, the circular helicate favors the heterochiral arrangement (i.e., LnIII4- RRRR/LnIII4- SSSS).
Collapse
Affiliation(s)
- Tan Yan Bing
- Graduate School of Materials Science , Nara Institute of Science and Technology , 8916-5 Takayama , Ikoma , Nara 630-0192 , Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science , Nara Institute of Science and Technology , 8916-5 Takayama , Ikoma , Nara 630-0192 , Japan
| | - Junpei Yuasa
- Department of Applied Chemistry, Faculty of Science , Tokyo University of Science , 1-3 Kagurazaka , Shinjuku-ku , Tokyo 162-8601 , Japan.,Precursory Research for Embryonic Science and Technology (PRESTO) , Science and Technology Agency (JST) , 4-1-8 Honcho , Kawaguchi , Saitama 332-0012 , Japan
| |
Collapse
|
15
|
Hamacek J, Vuillamy A. Controlling the Structures of Lanthanide Complexes in Self-Assemblies with Tripodal Ligands. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701075] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Josef Hamacek
- Center for Molecular Biophysics (CBM); CNRS Orléans; Rue Charles Sadron 45071 Orleans Cedex 2 France
| | - Alexandra Vuillamy
- Center for Molecular Biophysics (CBM); CNRS Orléans; Rue Charles Sadron 45071 Orleans Cedex 2 France
| |
Collapse
|
16
|
Chiral transcription in self-assembled tetrahedral Eu 4L 6 chiral cages displaying sizable circularly polarized luminescence. Nat Commun 2017; 8:1128. [PMID: 29066720 PMCID: PMC5783948 DOI: 10.1038/s41467-017-01025-1] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 08/11/2017] [Indexed: 12/26/2022] Open
Abstract
Predictable stereoselective formation of supramolecular assembly is generally believed to be an important but complicated process. Here, we show that point chirality of a ligand decisively influences its supramolecular assembly behavior. We designed three closely related chiral ligands with different point chiralities, and observe their self-assembly into europium (Eu) tetrametallic tetrahedral cages. One ligand exhibits a highly diastereoselective assembly into homochiral (either ΔΔΔΔ or ΛΛΛΛ) Eu tetrahedral cages whereas the two other ligands, with two different approaches of loosened point chirality, lead to a significant breakdown of the diastereoselectivity to generate a mixture of (ΔΔΔΔ and ΛΛΛΛ) isomers. The cages are highly emissive (luminescence quantum yields of 16(1) to 18(1)%) and exhibit impressive circularly polarized luminescence properties (|g lum|: up to 0.16). With in-depth studies, we present an example that correlates the nonlinear enhancement of the chiroptical response to the nonlinearity dependence on point chirality.
Collapse
|
17
|
Zhang XP, Qi XW, Zhang DS, Zhu LH, Wang XH, Shi ZF, Lin Q. Configuration analysis of three chiral polypyridines functionalized with pinene groups. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.04.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
18
|
Mondal AK, Jena HS, Malviya A, Konar S. Lanthanide-Directed Fabrication of Four Tetranuclear Quadruple Stranded Helicates Showing Magnetic Refrigeration and Slow Magnetic Relaxation. Inorg Chem 2016; 55:5237-44. [DOI: 10.1021/acs.inorgchem.6b00177] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amit Kumar Mondal
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal-bypass road, Bahuri, Bhopal-462066, Madhya Pradesh, India
| | - Himanshu Sekhar Jena
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal-bypass road, Bahuri, Bhopal-462066, Madhya Pradesh, India
| | - Amita Malviya
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal-bypass road, Bahuri, Bhopal-462066, Madhya Pradesh, India
| | - Sanjit Konar
- Department
of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal-bypass road, Bahuri, Bhopal-462066, Madhya Pradesh, India
| |
Collapse
|
19
|
Malviya A, Jena HS, Mondal AK, Konar S. Europium‐Based Dinuclear Triple‐Stranded Helicate vs. Tetranuclear Quadruple‐Stranded Helicate: Effect of Stoichiometric Ratio on the Supramolecular Self‐Assembly. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500301] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Amita Malviya
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore by‐pass road, Bhauri, Bhopal 462066, MP, India, http://skonarhomepage.wix.com/iiserb
| | - Himanshu Sekhar Jena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore by‐pass road, Bhauri, Bhopal 462066, MP, India, http://skonarhomepage.wix.com/iiserb
| | - Amit Kumar Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore by‐pass road, Bhauri, Bhopal 462066, MP, India, http://skonarhomepage.wix.com/iiserb
| | - Sanjit Konar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore by‐pass road, Bhauri, Bhopal 462066, MP, India, http://skonarhomepage.wix.com/iiserb
| |
Collapse
|
20
|
Zhang XP, Chang VY, Liu J, Yang XL, Huang W, Li Y, Li CH, Muller G, You XZ. Potential switchable circularly polarized luminescence from chiral cyclometalated platinum(II) complexes. Inorg Chem 2014; 54:143-52. [PMID: 25495433 PMCID: PMC4286175 DOI: 10.1021/ic5019136] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A series of chiral cyclometalated platinum(II) complexes, [Pt((-)-L1)(Dmpi)]Cl ((-)-1), [Pt((+)-L1)(Dmpi)]Cl ((+)-1), [Pt((-)-L2)(Dmpi)]Cl ((-)-2), [Pt((+)-L2)(Dmpi)]Cl ((+)-2), [Pt3((-)-L2)2(Dmpi)4](ClO4)4 ((-)-3), and [Pt3((+)-L2)2(Dmpi)4](ClO4)4 ((+)-3) [(-)-L1 = (-)-4,5-pinene-6'-phenyl-2,2'-bipyridine, (+)-L1 = (+)-4,5-pinene-6'-phenyl-2,2'-bipyridine), (-)-L2 = (-)-1,3-bis(2-(4,5-pinene)pyridyl)benzene, (+)-L2 = (+)-1,3-bis(2-(4,5-pinene)pyridyl)benzene, Dmpi = 2,6-dimethylphenyl isocyanide], have been designed and synthesized. In aqueous solutions, (-)-1 and (+)-1 aggregate into one-dimensional helical chain structures through Pt···Pt, π-π, and hydrophobic-hydrophobic interactions. (-)-3 and (+)-3 represent a novel helical structure with Pt-Pt bonds. The formation of helical structures results in enhanced and distinct chiroptical properties as evidenced by circular dichroism spectra. Circularly polarized luminescence (CPL) was observed from the aggregates of (-)-1 and (+)-1 in water, as well as (-)-3 and (+)-3 in dichloromethane. The CPL activity can be switched reversibly (for (-)-1 and (+)-1) or irreversibly (for (-)-3 and (+)-3) by varying the temperature.
Collapse
Affiliation(s)
- Xiao-Peng Zhang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Hydroxo-Lanthanide Cluster Organic Framework Built by Hexanuclear Cluster Units. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0717-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
22
|
Cluster Organic Framework Based on Er3 and Cu5 Cluster Units. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0724-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
23
|
Development of responsive visibly and NIR luminescent and supramolecular coordination self-assemblies using lanthanide ion directed synthesis. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.03.023] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
24
|
Fang WH, Yang GY. Constructing heterometallic frameworks with highly connected topology based on edge-to-edge hexanuclear lanthanide clusters. CrystEngComm 2014. [DOI: 10.1039/c3ce42224k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Kotova O, Kitchen JA, Lincheneau C, Peacock RD, Gunnlaugsson T. Probing the effects of ligand isomerism in chiral luminescent lanthanide supramolecular self-assemblies: a europium "Trinity Sliotar" study. Chemistry 2013; 19:16181-6. [PMID: 24174126 DOI: 10.1002/chem.201303660] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Indexed: 01/08/2023]
Abstract
"Trinity Sliotar" family: Chiral ligands containing pyridyl and naphthalene moieties were synthesized and characterized. These ligands were successfully used for the synthesis of Eu(III) bundles where chirality of the ligand is successfully transferred onto the lanthanide centre resulting in circularly polarized red luminescence.
Collapse
Affiliation(s)
- Oxana Kotova
- School of Chemistry, Trinity Biomedical Sciences Institute, University of Dublin, Trinity College Dublin, Dublin 2 (Ireland).
| | | | | | | | | |
Collapse
|
26
|
Kobyłka MJ, Ślepokura K, Acebrón Rodicio M, Paluch M, Lisowski J. Incorporation of Trinuclear Lanthanide(III) Hydroxo Bridged Clusters in Macrocyclic Frameworks. Inorg Chem 2013; 52:12893-903. [DOI: 10.1021/ic400508y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michał J. Kobyłka
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383
Wrocław, Poland
| | - Katarzyna Ślepokura
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383
Wrocław, Poland
| | - Maria Acebrón Rodicio
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383
Wrocław, Poland
| | - Marta Paluch
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383
Wrocław, Poland
| | - Jerzy Lisowski
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383
Wrocław, Poland
| |
Collapse
|
27
|
Li J, Li F, Jiang X, Wei G, Cheng Y, Zhu C. Circularly Polarized Luminescence and Tuning Chromaticity of Eu(III)-Grafting Chiral Polymer Based on Variable Position of the Substitution. Macromol Rapid Commun 2013; 34:1312-8. [DOI: 10.1002/marc.201300392] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 06/07/2013] [Indexed: 01/02/2023]
Affiliation(s)
- Junfeng Li
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Fei Li
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Xiaoxiang Jiang
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Guo Wei
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yixiang Cheng
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Chengjian Zhu
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| |
Collapse
|
28
|
Bozoklu G, Gateau C, Imbert D, Pécaut J, Robeyns K, Filinchuk Y, Memon F, Muller G, Mazzanti M. Metal-controlled diastereoselective self-assembly and circularly polarized luminescence of a chiral heptanuclear europium wheel. J Am Chem Soc 2012; 134:8372-5. [PMID: 22548280 PMCID: PMC3478891 DOI: 10.1021/ja3020814] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The chiral dissymmetric tetradentate ligand (S)-6'-(4-phenyloxazolin-2-yl)-2,2'-bipyridine-6-carboxylate (S-Phbipox) leads to the diastereoselective assembly of a homochiral Eu(3+) triangle and a highly emissive (quantum yield = 27%) heptanuclear wheel that is the largest example of a chiral luminescent complex of Eu(3+) reported to date. The nuclearity of the assembly is controlled by the solvent and the Eu(3+) cation. All of the compounds show large circularly polarized luminescence with an activity that varies with the nature of the assembly (highest for the homochiral trimer).
Collapse
Affiliation(s)
- Gülay Bozoklu
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination, Service de Chimie Inorganique et Biologique, CEA-Grenoble, INAC, France
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Yao MX, Zheng Q, Cai XM, Li YZ, Song Y, Zuo JL. Chiral Cyanide-Bridged CrIII–MnIII Heterobimetallic Chains Based on [(Tp)Cr(CN)3]−: Synthesis, Structures, and Magnetic Properties. Inorg Chem 2012; 51:2140-9. [DOI: 10.1021/ic201982d] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min-Xia Yao
- State Key
Laboratory of Coordination Chemistry, School
of Chemistry and Chemical Engineering, Nanjing National Laboratory
of Microstructures, Nanjing University,
Nanjing 210093, P.R. China
| | - Qi Zheng
- State Key
Laboratory of Coordination Chemistry, School
of Chemistry and Chemical Engineering, Nanjing National Laboratory
of Microstructures, Nanjing University,
Nanjing 210093, P.R. China
| | - Xu-Min Cai
- State Key
Laboratory of Coordination Chemistry, School
of Chemistry and Chemical Engineering, Nanjing National Laboratory
of Microstructures, Nanjing University,
Nanjing 210093, P.R. China
| | - Yi-Zhi Li
- State Key
Laboratory of Coordination Chemistry, School
of Chemistry and Chemical Engineering, Nanjing National Laboratory
of Microstructures, Nanjing University,
Nanjing 210093, P.R. China
| | - You Song
- State Key
Laboratory of Coordination Chemistry, School
of Chemistry and Chemical Engineering, Nanjing National Laboratory
of Microstructures, Nanjing University,
Nanjing 210093, P.R. China
| | - Jing-Lin Zuo
- State Key
Laboratory of Coordination Chemistry, School
of Chemistry and Chemical Engineering, Nanjing National Laboratory
of Microstructures, Nanjing University,
Nanjing 210093, P.R. China
| |
Collapse
|
30
|
Lin Y, Zou F, Wan S, Ouyang J, Lin L, Zhang H. Dynamic chiral-at-metal stability of tetrakis(d/l-hfc)Ln(iii) complexes capped with an alkali metal cation in solution. Dalton Trans 2012; 41:6696-706. [DOI: 10.1039/c2dt30431g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
31
|
Anger E, Rudolph M, Norel L, Zrig S, Shen C, Vanthuyne N, Toupet L, Williams JAG, Roussel C, Autschbach J, Crassous J, Réau R. Multifunctional and reactive enantiopure organometallic helicenes: tuning chiroptical properties by structural variations of mono- and bis(platinahelicene)s. Chemistry 2011; 17:14178-98. [PMID: 22052676 DOI: 10.1002/chem.201101866] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Revised: 08/11/2011] [Indexed: 11/10/2022]
Abstract
Acetylacetonato-platina[6]- and -platina[7]helicenes have been prepared from 2-pyridyl-substituted benzophenanthrene ligands by following a two-step cycloplatination reaction. The photophysical properties (UV-visible absorption and emission behavior) and chiroptical properties (circular dichroism and molar rotation) of the resolved enantiomers have been measured. These metallahelicenes constitute a novel family of easily accessible helicene derivatives that exhibit large and tuneable chiroptical properties that can be rationalized theoretically and compared to the parent [6]- and [7]carbohelicenes. Furthermore, they are red phosphors at room temperature and their large chiroptical properties can be modulated by oxidation of the metal center to Pt(IV). Hetero- and homochiral diastereomeric bis(metallahelicene)s that possess a rare Pt(III)-Pt(III) scaffold bridged by benzoato ligands have also been prepared. It is shown that the heterochiral (P,M)-bis(Pt(III)-[6]helicene) 9a(1) can isomerize into the homochiral (P,P)- and (M,M)-bis(Pt(III)-[6]helicene) 9a(2). Spectral assignments and an analysis of the optical rotation of these systems were made with the help of time-dependent density functional theory. The calculations highlight the contributions of the metal centers to the chiroptical properties. For 9a(1) and 9a(2), σ-π conjugation between the helicenes and the Pt-Pt moiety may contribute strongly to the optical rotation and electronic circular dichroism.
Collapse
Affiliation(s)
- Emmanuel Anger
- Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Yuasa J, Ohno T, Miyata K, Tsumatori H, Hasegawa Y, Kawai T. Noncovalent ligand-to-ligand interactions alter sense of optical chirality in luminescent tris(β-diketonate) lanthanide(III) complexes containing a chiral bis(oxazolinyl) pyridine ligand. J Am Chem Soc 2011; 133:9892-902. [PMID: 21598978 DOI: 10.1021/ja201984u] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Highly luminescent tris[β-diketonate (HFA, 1,1,1,5,5,5-hexafluoropentane-2,4-dione)] europium(III) complexes containing a chiral bis(oxazolinyl) pyridine (pybox) ligand--[(Eu(III)(R)-Ph-pybox)(HFA)(3)], [(Eu(III)(R)-i-Pr-pybox)(HFA)(3)], and [(Eu(III)(R)-Me-Ph-pybox)(HFA)(3)])--exhibit strong circularly polarized luminescence (CPL) at the magnetic-dipole ((5)D(0) → (7)F(1)) transition, where the [(Eu(III)(R)-Ph-pybox)(HFA)(3)] complexes show virtually opposite CPL spectra as compared to those with the same chirality of [(Eu(III)(R)-i-Pr-pybox)(HFA)(3)] and [(Eu(III)(R)-Me-Ph-pybox)(HFA)(3)]. Similarly, the [(Tb(III)(R)-Ph-pybox)(HFA)(3)] complexes were found to exhibit CPL signals almost opposite to those of [(Tb(III)(R)-i-Pr-pybox)(HFA)(3)] and [(Tb(III)(R)-Me-Ph-pybox)(HFA)(3)] complexes with the same pybox chirality. Single-crystal X-ray structural analysis revealed ligand-ligand interactions between the pybox ligand and the HFA ligand in each lanthanide(III) complex: π-π stacking interactions in the Eu(III) and Tb(III) complexes with the Ph-pybox ligand, CH/F interactions in those with the i-Pr-pybox ligand, and CH/π interactions in those with the Me-Ph-pybox ligand. The ligand-ligand interactions between the achiral HFA ligands and the chiral pybox results in an asymmetric arrangement of three HFA ligands around the metal center. The metal center geometry varies depending on the types of ligand-ligand interaction.
Collapse
Affiliation(s)
- Junpei Yuasa
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan.
| | | | | | | | | | | |
Collapse
|
33
|
Deb D, Bhattacharjee M. Syntheses and structure of heterobimetallic helical polymeric Mo–M(II) (M = Mn, Co, Zn, Cd or Ni) complexes using a flexidentate metalloligand. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.03.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
34
|
Lisowski J. Enantiomeric self-recognition in homo- and heterodinuclear macrocyclic lanthanide(III) complexes. Inorg Chem 2011; 50:5567-76. [PMID: 21591800 DOI: 10.1021/ic2001909] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The controlled formation of lanthanide(III) dinuclear μ-hydroxo-bridged [Ln(2)L(2)(μ-OH)(2)X(2)](n+) complexes (where X = H(2)O, NO(3)(-), or Cl(-)) of the enantiopure chiral macrocycle L is reported. The (1)H and (13)C NMR resonances of these complexes have been assigned on the basis of COSY, NOESY, TOCSY, and HMQC spectra. The observed NOE connectivities confirm that the dimeric solid-state structure is retained in solution. The enantiomeric nature of the obtained chiral complexes and binding of hydroxide anions are reflected in their CD spectra. The formation of the dimeric complexes is accompanied by a complete enantiomeric self-recognition of the chiral macrocyclic units. The reaction of NaOH with a mixture of two different mononuclear lanthanide(III) complexes, [Ln(1)L](3+) and [Ln(2)L](3+), results in formation of the heterodinuclear [Ln(1)Ln(2)L(2)(μ-OH)(2)X(2)](n+) complexes as well as the corresponding homodinuclear complexes. The formation of the heterodinuclear complex is directly confirmed by the NOESY spectra of [EuLuL(2)(μ-OH)(2)(H(2)O)(2)](4+), which reveal close contacts between the macrocyclic unit containing the Eu(III) ion and the macrocyclic unit containing the Lu(III) ion. While the relative amounts of homo- and heterodinuclear complexes are statistical for the two lanthanide(III) ions of similar radii, a clear preference for the formation of heterodinuclear species is observed when the two mononuclear complexes contain lanthanide(III) ions of markedly different sizes, e.g., La(III) and Yb(III). The formation of heterodinuclear complexes is accompanied by the self-sorting of the chiral macrocyclic units based on their chirality. The reactions of NaOH with a pair of homochiral or racemic mononuclear complexes, [Ln(1)L(RRRR)](3+)/[Ln(2)L(RRRR)](3+), [Ln(1)L(SSSS)](3+)/[Ln(2)L(SSSS)](3+), or [Ln(1)L(rac)](3+)/[Ln(2)L(rac)](3+), results in mixtures of homochiral, homodinuclear and homochiral, heterodinuclear complexes. On the contrary, no heterochiral, heterodinuclear complexes [Ln(1)L(RRRR)Ln(2)L(SSSS)(μ-OH)(2)X(2)](n+) are formed in the reactions of two different mononuclear complexes of opposite chirality.
Collapse
Affiliation(s)
- Jerzy Lisowski
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
| |
Collapse
|
35
|
|
36
|
Paluch M, Ślepokura K, Lis T, Lisowski J. Enantiopure trinuclear lanthanide(III) complexes: Cooperative formation of Ln3(μ3-OH)2 core within the macrocycle. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2010.09.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
37
|
Lincheneau C, Stomeo F, Comby S, Gunnlaugsson T. Recent Highlights in the use of Lanthanide-directed Synthesis of Novel Supramolecular (Luminescent) Self-assembly Structures such as Coordination Bundles, Helicates and Sensors. Aust J Chem 2011. [DOI: 10.1071/ch11184] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this short review, we focus on the recent developments within the field of coordination chemistry where mono- or multimetallic supramolecular self-assemblies are formed by employing structurally defined organic ligands, taking advantage of the high coordination requirements of the lanthanides. Such synthesis results in the formation of both structurally complex and beautiful self-assemblies. Moreover, as the lanthanide ions possess both unique magnetic (e.g. GdIII and DyIII) and luminescent properties, either in the visible (EuIII, SmIII and TbIII) or near-infrared regions (YbIII, NdIII, ErIII), these physical features are usually transferred to the self-assemblies themselves, allowing the formation of highly functional structures, such as coordination networks, as well as molecular bundles and helicates. Hence, examples of the use of lanthanide-directed synthesis of luminescent sensors, some of which are formed on solid surfaces such as gold (flat surface or nanoparticles), and imaging agents are presented. Moreover, we demonstrate that by using chiral organic ligands, lanthanide-directed synthesis can also give rise to the formation of enantiomerically pure self-assemblies, the structure of which can be probed using circularly polarized luminescence.
Collapse
|
38
|
Lincheneau C, Leonard JP, McCabe T, Gunnlaugsson T. Lanthanide directed self-assembly formations of Tb(iii) and Eu(iii) luminescent complexes from tryptophan based pyridyl amide ligands. Chem Commun (Camb) 2011; 47:7119-21. [DOI: 10.1039/c1cc11326g] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
39
|
Telfer SG, McLean TM, Waterland MR. Exciton coupling in coordination compounds. Dalton Trans 2011; 40:3097-108. [DOI: 10.1039/c0dt01226b] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
40
|
Zheng Y, Kong XJ, Long LS, Huang RB, Zheng LS. Enantiopure sandwich-type nonanuclear LnIII3MnIII6 clusters. Dalton Trans 2011; 40:4035-7. [DOI: 10.1039/c1dt10044k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
41
|
Aranda Perez AI, Biet T, Graule S, Agou T, Lescop C, Branda NR, Crassous J, Réau R. Chiral and extended π-conjugated bis(2-pyridyl)phospholes as assembling N,P,N pincers for coordination-driven synthesis of supramolecular [2,2]paracyclophane analogues. Chemistry 2010; 17:1337-51. [PMID: 21243702 DOI: 10.1002/chem.201001862] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Indexed: 11/11/2022]
Abstract
Chiral, π-conjugated 3,4-butano-1-phenyl-2,5-bis(2-pyridyl)phosphole derivatives 1a(2,2') and 1a(3) with chiral trans-1,2-diol moieties and fused pinene derivatives, respectively, were prepared from the corresponding chiral diynes by using the Fagan-Nugent method. Their UV/Vis absorption and chiroptical properties (optical rotation and circular dichroism) were studied. Their behavior as N,P,N chelates towards coordination of Cu(I) and formation of chiral supramolecular assemblies with π-conjugated ditopic dicyano ligands was investigated. Chiral C(2)-symmetric rectangles that are [2,2]paracyclophane analogues were obtained, as demonstrated by X-ray crystallography. During the course of this study, the first stable water-soluble phosphole derivative (1a(2)·2 HCl) was prepared. Furthermore, achiral 3,4-butano-1-phenyl-2,5-bis(aza[4]helicene)phosphole 1a(4) was synthesized and displays extended π conjugation. A supramolecular rectangle was obtained by coordination to Cu(I) and assembly with a dicyano stilbene. This coordination-driven supramolecular assembly contains a total of four aza[4]helicene moieties and displays two types of π-π stacking interactions in the solid state, that is, between two helicene moieties and between one helicene and a bridging dicyano ligand. All the supramolecular arrangements are discussed by comparing them with previous work on the parent 3,4-butano-1-phenyl-2,5-bis(2-pyridyl)phosphole.
Collapse
Affiliation(s)
- Ana Isabel Aranda Perez
- Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Lincheneau C, Peacock RD, Gunnlaugsson T. Europium directed synthesis of enantiomerically pure dimetallic luminescent "squeezed" triple-stranded helicates; solution studies. Chem Asian J 2010; 5:500-4. [PMID: 20143373 DOI: 10.1002/asia.200900515] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Christophe Lincheneau
- School of Chemistry, Center for Synthesis and Chemical Biology, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | | | | |
Collapse
|
43
|
Bozoklu G, Marchal C, Gateau C, Pécaut J, Imbert D, Mazzanti M. Diastereoselective Self-Assembly of a Homochiral Europium Triangle from a BipyoxazolineCarboxylate Ligand. Chemistry 2010; 16:6159-63. [DOI: 10.1002/chem.201000572] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
44
|
Wu T, Li CH, Li YZ, Zhang ZG, You XZ. Synthesis, structure and chiroptical study of chiral macrocyclic imine nickel(ii) coordination compounds derived from camphor. Dalton Trans 2010; 39:3227-32. [DOI: 10.1039/b923326a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
45
|
Piguet C, Bünzli JCG. Chapter 247 Self-Assembled Lanthanide Helicates. HANDBOOK ON THE PHYSICS AND CHEMISTRY OF RARE EARTHS VOLUME 40 2010. [DOI: 10.1016/s0168-1273(10)40007-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
46
|
Comby S, Stomeo F, McCoy C, Gunnlaugsson T. Formation of Novel Dinuclear Lanthanide Luminescent Samarium(III), Europium(III), and Terbium(III) Triple-Stranded Helicates from aC2-Symmetrical Pyridine-2,6-dicarboxamide-Based 1,3-Xylenediyl-Linked Ligand in MeCN. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200900213] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
47
|
Crassous J. Chiral transfer in coordination complexes: towards molecular materials. Chem Soc Rev 2009; 38:830-45. [DOI: 10.1039/b806203j] [Citation(s) in RCA: 347] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
48
|
Nonat AM, Harte AJ, Sénéchal-David K, Leonard JP, Gunnlaugsson T. Luminescent sensing and formation of mixed f–d metal ion complexes between a Eu(iii)-cyclen-phen conjugate and Cu(ii), Fe(ii), and Co(ii) in buffered aqueous solution. Dalton Trans 2009:4703-11. [DOI: 10.1039/b901567a] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Gregoliński J, Starynowicz P, Hua KT, Lunkley JL, Muller G, Lisowski J. Helical lanthanide(III) complexes with chiral nonaaza macrocycle. J Am Chem Soc 2008; 130:17761-73. [PMID: 19053412 PMCID: PMC2680476 DOI: 10.1021/ja805033j] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The chiral nonaazamacrocyclic amine L, which is a reduction product of the 3 + 3 Schiff base macrocycle, wraps around the lanthanide(III) ions to form enantiopure helical complexes. These Ce(III), Pr(III), Nd(III), Eu(III), Gd(III), Tb(III), Er(III), Yb(III) and Lu(III) complexes have been isolated in enantiopure form and have been characterized by spectroscopic methods. X-ray crystal structures of the Ln(III) complexes with L show that the thermodynamic product of the complexation of the RRRRRR-isomer of the macrocycle is the (M)-helical complex in the case of Ce(III), Pr(III), Nd(III) and Eu(III). In contrast, the (P)-helical complex is the thermodynamic product in the case of Yb(III) and Lu(III). The NMR and CD spectra show that the (M)-helicity for the kinetic complexation product of the RRRRRR-isomer of the macrocycle is preferred for all investigated lanthanide(III) ions, while the preferred helicity of the thermodynamic product is (M) for the early lanthanide(III) ions and (P) for the late lanthanide(III) ions. In the case of the late lanthanide(III) ions, a slow inversion of helicity between the kinetic (M)-helical product and the thermodynamic (P)-helical product is observed in solution. For Er(III), Yb(III) and Lu(III) both forms have been isolated in pure form and characterized by NMR and CD. The analysis of 2D NMR spectra of the Lu(III) complex reveals the NOE correlations that prove that the helical structure is retained in solution. The NMR spectra also reveal large isotopic effect on the 1H NMR shifts of paramagnetic Ln(III) complexes, related to NH/ND exchange. Photophysical measurements show that L(RRRRRR) appears to favor an efficient 3pipi*-to-Ln energy transfer process taking place for Eu(III) and Tb(III), but these Eu(III)- and Tb(III)-containing complexes with L(RRRRRR) lead to small luminescent quantum yields due to an incomplete intersystem crossing (isc) transfer, a weak efficiency of the luminescence sensitization by the ligand, and/or efficient nonradiative deactivation processes. Circularly polarized luminescence on the MeOH solutions of Eu(III) and Tb(III) complexes confirms the presence of stable chiral emitting species and the observation of almost perfect mirror-image CPL spectra for these compounds with both enantiomeric forms of L.
Collapse
Affiliation(s)
- Janusz Gregoliński
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland. Fax: 48 71 3282348; Tel: 48 71 3757252
| | - Przemysław Starynowicz
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland. Fax: 48 71 3282348; Tel: 48 71 3757252
| | - KimNgan T. Hua
- Department of Chemistry, San José State University, One Washington Square, San José, CA 95192-0101, USA. Fax: 408-924-4945, Tel: 408-924-4973
| | - Jamie L. Lunkley
- Department of Chemistry, San José State University, One Washington Square, San José, CA 95192-0101, USA. Fax: 408-924-4945, Tel: 408-924-4973
| | - Gilles Muller
- Department of Chemistry, San José State University, One Washington Square, San José, CA 95192-0101, USA. Fax: 408-924-4945, Tel: 408-924-4973
| | - Jerzy Lisowski
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland. Fax: 48 71 3282348; Tel: 48 71 3757252
| |
Collapse
|
50
|
Lama M, Mamula O, Kottas GS, De Cola L, Stoeckli-Evans H, Shova S. Enantiopure, Supramolecular Helices Containing Three-Dimensional Tetranuclear Lanthanide(III) Arrays: Synthesis, Structure, Properties, and Solvent-Driven Trinuclear/Tetranuclear Interconversion. Inorg Chem 2008; 47:8000-15. [DOI: 10.1021/ic7021006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marco Lama
- Institut des sciences et ingénierie chimiques, Ecole Polytechnique Fédérale de Lausanne, BCH 1403, 1015 Lausanne, Switzerland, Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Mendelstrasse 7, D-48149 Münster, Germany, Institut de microtechnologie, Université de Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel, Switzerland, and Department of Chemistry, Moldova State University, A. Mateevici 60, 2009 Chisinau, Moldova
| | - Olimpia Mamula
- Institut des sciences et ingénierie chimiques, Ecole Polytechnique Fédérale de Lausanne, BCH 1403, 1015 Lausanne, Switzerland, Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Mendelstrasse 7, D-48149 Münster, Germany, Institut de microtechnologie, Université de Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel, Switzerland, and Department of Chemistry, Moldova State University, A. Mateevici 60, 2009 Chisinau, Moldova
| | - Gregg S. Kottas
- Institut des sciences et ingénierie chimiques, Ecole Polytechnique Fédérale de Lausanne, BCH 1403, 1015 Lausanne, Switzerland, Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Mendelstrasse 7, D-48149 Münster, Germany, Institut de microtechnologie, Université de Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel, Switzerland, and Department of Chemistry, Moldova State University, A. Mateevici 60, 2009 Chisinau, Moldova
| | - Luisa De Cola
- Institut des sciences et ingénierie chimiques, Ecole Polytechnique Fédérale de Lausanne, BCH 1403, 1015 Lausanne, Switzerland, Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Mendelstrasse 7, D-48149 Münster, Germany, Institut de microtechnologie, Université de Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel, Switzerland, and Department of Chemistry, Moldova State University, A. Mateevici 60, 2009 Chisinau, Moldova
| | - Helen Stoeckli-Evans
- Institut des sciences et ingénierie chimiques, Ecole Polytechnique Fédérale de Lausanne, BCH 1403, 1015 Lausanne, Switzerland, Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Mendelstrasse 7, D-48149 Münster, Germany, Institut de microtechnologie, Université de Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel, Switzerland, and Department of Chemistry, Moldova State University, A. Mateevici 60, 2009 Chisinau, Moldova
| | - Sergiu Shova
- Institut des sciences et ingénierie chimiques, Ecole Polytechnique Fédérale de Lausanne, BCH 1403, 1015 Lausanne, Switzerland, Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Mendelstrasse 7, D-48149 Münster, Germany, Institut de microtechnologie, Université de Neuchâtel, Rue Emile-Argand 11, 2009 Neuchâtel, Switzerland, and Department of Chemistry, Moldova State University, A. Mateevici 60, 2009 Chisinau, Moldova
| |
Collapse
|