151
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Ludlow III JM, Xie T, Guo Z, Guo K, Saunders MJ, Moorefield CN, Wesdemiotis C, Newkome GR. Directed flexibility: self-assembly of a supramolecular tetrahedron. Chem Commun (Camb) 2015; 51:3820-3. [DOI: 10.1039/c4cc10044a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembly of 4 terpyridine-modified, flexible crown ether ligands with 12 Zn2+ ions results in high yield tetrahedron construction.
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Affiliation(s)
| | - Tingzheng Xie
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Zaihong Guo
- Department of Chemistry
- The University of Akron
- Akron
- USA
| | - Kai Guo
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Mary Jane Saunders
- Department of Biological Sciences
- Florida Atlantic University
- Boca Raton
- USA
| | | | - Chrys Wesdemiotis
- Department of Polymer Science
- The University of Akron
- Akron
- USA
- Department of Chemistry
| | - George R. Newkome
- Department of Polymer Science
- The University of Akron
- Akron
- USA
- Department of Chemistry
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152
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Shakirova JR, Grachova EV, Karttunen AJ, Gurzhiy VV, Tunik SP, Koshevoy IO. Metallophilicity-assisted assembly of phosphine-based cage molecules. Dalton Trans 2014; 43:6236-43. [PMID: 24599262 DOI: 10.1039/c3dt53645a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A family of supramolecular cage molecules has been obtained via self-assembly of the phosphine-gold coordination complexes following an aurophilicity-driven aggregation approach. Use of the di- (PP) or tridentate (PPP) phosphine ligands Pn (n = 2, 3) with rigid polyaromatic backbones leads to clean formation of the coordination Pn(Au(tht))n(n+) species, sequential treatment of which with H2O/NEt3 and excess of H2NBu(t) gives the finite 3D structures of two major types. The cylindrical-like hexametallic cages [(PPAu2)3(μ3-NBu(t))2](2+) are based on the diphosphines PP = 1,4-bis(diphenylphosphino)benzene (1), 4,4'-bis(diphenylphosphino)biphenyl (2), 4,4"-bis(diphenylphosphino)terphenyl (3), while the triphosphine PPP (1,3,5-tris(diphenylphosphinophenyl)benzene) produces a tetrahedral dodecagold complex [(PPPAu3)4(μ3-NBu(t))4](4+) (4). The cages 1-4 have been studied using the ESI-MS and (1)H, (31)P NMR spectroscopy, and the crystal structures of 1 and 4 were determined by an X-ray diffraction study. The NMR spectroscopic investigations showed that cylindrical complexes 1-3 undergo twisting-like interconversion of the helical P ↔ M isomers in solution, while 4 is a stereochemically rigid compound retaining its axially chiral architecture. The difference in dynamic behavior was rationalized using computational studies with density functional methods.
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Affiliation(s)
- Julia R Shakirova
- St.-Petersburg State University, Department of Chemistry, St.-Petersburg, Russia.
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153
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Sinha N, Roelfes F, Hepp A, Mejuto C, Peris E, Hahn FE. Synthesis of Nanometer-Sized Cylinder-Like Structures from a 1,3,5-Triphenylbenzene-Bridged Tris-NHC Ligand and AgI, AuI, and CuI. Organometallics 2014. [DOI: 10.1021/om500973b] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Narayan Sinha
- Institut für
Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Florian Roelfes
- Institut für
Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für
Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Carmen Mejuto
- Departamento de Quı́mica Inorgánica
y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n, 12071 Castellón, Spain
| | - Eduardo Peris
- Departamento de Quı́mica Inorgánica
y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n, 12071 Castellón, Spain
| | - F. Ekkehardt Hahn
- Institut für
Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
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154
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Single-, double- and triple-stranded helical metal complexes of chiral tetradentate pyridyl-thiazole ligands: Stereoselective synthesis, spectroscopic properties and structural characterization. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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155
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Zhang J, He C, Duan C. Self-assembled cerium-based metal–organic tetrahedrons for selective recognition of natural saccharides. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.09.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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156
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Yoshizawa M, Klosterman JK. Molecular architectures of multi-anthracene assemblies. Chem Soc Rev 2014; 43:1885-98. [PMID: 24169958 DOI: 10.1039/c3cs60315f] [Citation(s) in RCA: 257] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Anthracene, with its molecular panel-like shape and robust photophysical behaviour, is a versatile building block that is widely used to construct attractive and functional molecules and molecular assemblies through covalent and non-covalent linkages. The intrinsic photophysical, photochemical and chemical properties of the embedded anthracenes often interact to engender desirable chemical behaviours and properties in multi-anthracene assemblies. This review article focuses on molecular architectures with linear, cyclic, cage, and capsule shapes, each containing three or more anthracene subunits.
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Affiliation(s)
- Michito Yoshizawa
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
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157
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D’Alessio D, Sobolev AN, Skelton BW, Fuller RO, Woodward RC, Lengkeek NA, Fraser BH, Massi M, Ogden MI. Lanthanoid “Bottlebrush” Clusters: Remarkably Elongated Metal–Oxo Core Structures with Controllable Lengths. J Am Chem Soc 2014; 136:15122-5. [DOI: 10.1021/ja506677h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Daniel D’Alessio
- Department
of Chemistry, Curtin University, Bentley, Western Australia 6102, Australia
| | - Alexandre N. Sobolev
- Centre
for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, Western Australia 6009, Australia
- Chemistry
M310, School of Chemistry and Biochemistry, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Brian W. Skelton
- Centre
for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Rebecca O. Fuller
- Chemistry
M310, School of Chemistry and Biochemistry, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Robert C. Woodward
- School
of Physics, The University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Nigel A. Lengkeek
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee
DC, New South Wales 2232, Australia
| | - Benjamin H. Fraser
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee
DC, New South Wales 2232, Australia
| | - Massimiliano Massi
- Department
of Chemistry, Curtin University, Bentley, Western Australia 6102, Australia
| | - Mark I. Ogden
- Department
of Chemistry, Curtin University, Bentley, Western Australia 6102, Australia
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158
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Garci A, Gupta G, Dalvit C, Therrien B. Investigating the Formation Mechanism of Arene Ruthenium Metallacycles by NMR Spectroscopy. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402639] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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159
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Hovorka R, Meyer-Eppler G, Piehler T, Hytteballe S, Engeser M, Topić F, Rissanen K, Lützen A. Unexpected Self-Assembly of a Homochiral Metallosupramolecular M4L4Catenane. Chemistry 2014; 20:13253-8. [DOI: 10.1002/chem.201403414] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Indexed: 11/09/2022]
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160
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Dai Y, Wang YG, Geng J, Peng YX, Huang W. Dinuclear Cu(II) complexes based on two flexible Schiff-base ligands and one unusual in situ formed diphenolate 2,6-piperidin-4-one derivative. Dalton Trans 2014; 43:13831-4. [PMID: 25117762 DOI: 10.1039/c4dt01014k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dinuclear Cu(ii) complex [Cu2(L3)2]·2H2O, having an unprecedented in situ formed diphenolate 2,6-piperidin-4-one derived ligand produced from the flexible Schiff-base ligand HL1, can be yielded as a side product in the presence of Cu(OAc)2·H2O-NH3·H2O dissolved in methanol and acetone in addition to the expected dinuclear Cu(ii) complex [Cu2(L1)4].
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Affiliation(s)
- Yuan Dai
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China.
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161
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Metherell AJ, Ward MD. Stepwise assembly of an adamantoid Ru₄Ag₆ cage by control of metal coordination geometry at specific sites. Chem Commun (Camb) 2014; 50:10979-82. [PMID: 25096332 DOI: 10.1039/c4cc05421k] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The geometrically pure 'complex ligand' fac-[Ru(L(ph))3](2+), in which three pendant bidentate binding sites are located on one face of the complex, reacts with Ag(I) ions to form the adamantoid decanuclear cage [{Ru(L(ph))3}4Ag6](PF6)14 which contains a 6-coordinate Ru(II) ion at each vertex of a large tetrahedron and a 4-coordinate Ag(I) ion along each edge.
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162
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Castilla AM, Ramsay WJ, Nitschke JR. Stereochemistry in subcomponent self-assembly. Acc Chem Res 2014; 47:2063-73. [PMID: 24793652 DOI: 10.1021/ar5000924] [Citation(s) in RCA: 327] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
CONSPECTUS: As Pasteur noted more than 150 years ago, asymmetry exists in matter at all organization levels. Biopolymers such as proteins or DNA adopt one-handed conformations, as a result of the chirality of their constituent building blocks. Even at the level of elementary particles, asymmetry exists due to parity violation in the weak nuclear force. While the origin of homochirality in living systems remains obscure, as does the possibility of its connection with broken symmetries at larger or smaller length scales, its centrality to biomolecular structure is clear: the single-handed forms of bio(macro)molecules interlock in ways that depend upon their handednesses. Dynamic artificial systems, such as helical polymers and other supramolecular structures, have provided a means to study the mechanisms of transmission and amplification of stereochemical information, which are key processes to understand in the context of the origins and functions of biological homochirality. Control over stereochemical information transfer in self-assembled systems will also be crucial for the development of new applications in chiral recognition and separation, asymmetric catalysis, and molecular devices. In this Account, we explore different aspects of stereochemistry encountered during the use of subcomponent self-assembly, whereby complex structures are prepared through the simultaneous formation of dynamic coordinative (N → metal) and covalent (N═C) bonds. This technique provides a useful method to study stereochemical information transfer processes within metal-organic assemblies, which may contain different combinations of fixed (carbon) and labile (metal) stereocenters. We start by discussing how simple subcomponents with fixed stereogenic centers can be incorporated in the organic ligands of mononuclear coordination complexes and communicate stereochemical information to the metal center, resulting in diastereomeric enrichment. Enantiopure subcomponents were then incorporated in self-assembly reactions to control the stereochemistry of increasingly complex architectures. This strategy has also allowed exploration of the degree to which stereochemical information is propagated through tetrahedral frameworks cooperatively, leading to the observation of stereochemical coupling across more than 2 nm between metal stereocenters and the enantioselective synthesis of a face-capped tetrahedron containing no carbon stereocenters via a stereochemical memory effect. Several studies on the communication of stereochemistry between the configurationally flexible metal centers in tetrahedral metal-organic cages have shed light on the factors governing this process, allowing the synthesis of an asymmetric cage, obtained in racemic form, in which all symmetry elements have been broken. Finally, we discuss how stereochemical diversity leads to structural complexity in the structures prepared through subcomponent self-assembly. Initial use of octahedral metal templates with facial stereochemistry in subcomponent self-assembly, which predictably gave rise to structures of tetrahedral symmetry, was extended to meridional metal centers. These lower-symmetry linkages have allowed the assembly of a series of increasingly intricate 3D architectures of varying functionality. The knowledge gained from investigating different aspects of the stereochemistry of metal-templated assemblies thus not only leads to new means of structural control but also opens pathways toward functions such as stereoselective guest binding and transformation.
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Affiliation(s)
- Ana M. Castilla
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - William J. Ramsay
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
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163
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Deng S, Chao W, Huang F, Gan L, Duan X, Liu T, Xiao W, Zhang N. Solvent-templated 1D Loop-and-cage Metal-organic Coordination Polymer Exhibiting a 1D→3D Interdigited Array. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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164
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Riddell IA, Ronson TK, Clegg JK, Wood CS, Bilbeisi RA, Nitschke JR. Cation- and Anion-Exchanges Induce Multiple Distinct Rearrangements within Metallosupramolecular Architectures. J Am Chem Soc 2014; 136:9491-8. [DOI: 10.1021/ja504748g] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Imogen A. Riddell
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Tanya K. Ronson
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Jack K. Clegg
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Christopher S. Wood
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Rana A. Bilbeisi
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
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165
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Bilbeisi RA, Olsen JC, Charbonnière LJ, Trabolsi A. Self-assembled discrete metal–organic complexes: Recent advances. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.12.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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166
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Turega S, Cullen W, Whitehead M, Hunter CA, Ward MD. Mapping the Internal Recognition Surface of an Octanuclear Coordination Cage Using Guest Libraries. J Am Chem Soc 2014; 136:8475-83. [DOI: 10.1021/ja504269m] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Simon Turega
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | - William Cullen
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | - Martina Whitehead
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | | | - Michael D. Ward
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
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167
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Dai FR, Sambasivam U, Hammerstrom AJ, Wang Z. Synthetic Supercontainers Exhibit Distinct Solution versus Solid State Guest-Binding Behavior. J Am Chem Soc 2014; 136:7480-91. [DOI: 10.1021/ja502839b] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Feng-Rong Dai
- Department of
Chemistry, The University of South Dakota, Churchill-Haines Laboratories, Room
115, 414 East Clark Street, Vermillion, South Dakota 57069-2390, United States
| | - Uma Sambasivam
- Department of
Chemistry, The University of South Dakota, Churchill-Haines Laboratories, Room
115, 414 East Clark Street, Vermillion, South Dakota 57069-2390, United States
| | - Alex J. Hammerstrom
- Department of
Chemistry, The University of South Dakota, Churchill-Haines Laboratories, Room
115, 414 East Clark Street, Vermillion, South Dakota 57069-2390, United States
| | - Zhenqiang Wang
- Department of
Chemistry, The University of South Dakota, Churchill-Haines Laboratories, Room
115, 414 East Clark Street, Vermillion, South Dakota 57069-2390, United States
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168
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Ramsay WJ, Nitschke JR. Two Distinct Allosteric Active Sites Regulate Guest Binding Within a Fe8Mo1216+ Cubic Receptor. J Am Chem Soc 2014; 136:7038-43. [DOI: 10.1021/ja501809s] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- William J. Ramsay
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge, CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge, CB2 1EW, United Kingdom
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169
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Desmarets C, Gontard G, Cooksy AL, Rager MN, Amouri H. Encapsulation of a Metal Complex within a Self-Assembled Nanocage: Synergy Effects, Molecular Structures, and Density Functional Theory Calculations. Inorg Chem 2014; 53:4287-94. [DOI: 10.1021/ic402539x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Christophe Desmarets
- Institut Parisien
de Chimie Moléculaire (IPCM), UMR 8232, Sorbonne Universités, Université Paris 06, Université Pierre et Marie Curie (UPMC), 4 place Jussieu, 75252 Paris Cedex 05, France
- IPCM, UMR 8232, Centre National de la Recherche Scientifique (CNRS), 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Geoffrey Gontard
- Institut Parisien
de Chimie Moléculaire (IPCM), UMR 8232, Sorbonne Universités, Université Paris 06, Université Pierre et Marie Curie (UPMC), 4 place Jussieu, 75252 Paris Cedex 05, France
- IPCM, UMR 8232, Centre National de la Recherche Scientifique (CNRS), 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Andrew L. Cooksy
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San
Diego California 92182-1030, United States
| | - Marie Noelle Rager
- Institut de Recherche de Chimie Paris, CNRS−Chimie ParisTech, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Hani Amouri
- Institut Parisien
de Chimie Moléculaire (IPCM), UMR 8232, Sorbonne Universités, Université Paris 06, Université Pierre et Marie Curie (UPMC), 4 place Jussieu, 75252 Paris Cedex 05, France
- IPCM, UMR 8232, Centre National de la Recherche Scientifique (CNRS), 4 place Jussieu, 75252 Paris Cedex 05, France
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170
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Meyer-Eppler G, Topić F, Schnakenburg G, Rissanen K, Lützen A. Chiral Self-Sorting oftrans-Chelating Chiral Ligands upon Formation of PdIIComplexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402057] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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171
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Dong J, Zhou Y, Zhang F, Cui Y. A Highly Fluorescent Metallosalalen‐Based Chiral Cage for Enantioselective Recognition and Sensing. Chemistry 2014; 20:6455-61. [DOI: 10.1002/chem.201304606] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Jinqiao Dong
- School of Chemistry and Chemical Technology and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240 (P.R. China), Fax: (+86) 21‐5474‐1297
| | - Yanfang Zhou
- School of Chemistry and Chemical Technology and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240 (P.R. China), Fax: (+86) 21‐5474‐1297
| | - Fangwei Zhang
- School of Chemistry and Chemical Technology and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240 (P.R. China), Fax: (+86) 21‐5474‐1297
| | - Yong Cui
- School of Chemistry and Chemical Technology and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240 (P.R. China), Fax: (+86) 21‐5474‐1297
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172
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Dinuclear double helicates assembled from a bis-bidentate ligand and Cu(I), Cu(II), Ag(I) and Cd(II) salts. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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173
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Klein C, Gütz C, Bogner M, Topić F, Rissanen K, Lützen A. A new structural motif for an enantiomerically pure metallosupramolecular Pd₄L₈ aggregate by anion templating. Angew Chem Int Ed Engl 2014; 53:3739-42. [PMID: 24590898 DOI: 10.1002/anie.201400626] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Indexed: 11/11/2022]
Abstract
An enantiomerically pure BINOL-based bis(3-pyridyl) ligand 1 assembles into a homochiral [Pd4(1)8] complex upon coordination to tetravalent Pd(II) ions. The formation of this aggregate is templated by two tetrafluoroborate counterions that are encapsulated in two peripheral cavities. The resulting structure is a new structural motif for this kind of metallosupramolecular assemblies that arranges the palladium ions in a distorted tetrahedral fashion and forces ligand 1 to adopt two different conformations. Both phenomena are unique and cause an overall three-dimensional structure that has another confined, chiral, and hydrophilic central cavity.
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Affiliation(s)
- Christoph Klein
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany)
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174
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Klein C, Gütz C, Bogner M, Topić F, Rissanen K, Lützen A. Ein enantiomerenreines metallosupramolekulares Pd4L8-Aggregat mit neuartigem Strukturmotiv: Bildung durch einen Anionen-Templateffekt. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400626] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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175
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Henkelis JJ, Fisher J, Warriner SL, Hardie MJ. Solvent-Dependent Self-Assembly Behaviour and Speciation Control of Pd6L8Metallo-supramolecular Cages. Chemistry 2014; 20:4117-25. [DOI: 10.1002/chem.201304437] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Indexed: 11/11/2022]
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176
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Meng W, League AB, Ronson TK, Clegg JK, Isley WC, Semrouni D, Gagliardi L, Cramer CJ, Nitschke JR. Empirical and Theoretical Insights into the Structural Features and Host–Guest Chemistry of M8L4 Tube Architectures. J Am Chem Soc 2014; 136:3972-80. [DOI: 10.1021/ja412964r] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wenjing Meng
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Aaron B. League
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Tanya K. Ronson
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Jack K. Clegg
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - William C. Isley
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - David Semrouni
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Laura Gagliardi
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jonathan R. Nitschke
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
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177
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Dimensionality Variation in Dinuclear Cu(II) Complexes of a Heterotritopic Pyrazolate Ligand. CRYSTALS 2014. [DOI: 10.3390/cryst4010032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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178
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Samanta D, Shanmugaraju S, Adeyemo AA, Mukherjee PS. Self-assembly of discrete metallamacrocycles employing half-sandwich octahedral diruthenium(II) building units and imidazole-based ligands. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.09.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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179
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Gütz C, Hovorka R, Klein C, Jiang QQ, Bannwarth C, Engeser M, Schmuck C, Assenmacher W, Mader W, Topić F, Rissanen K, Grimme S, Lützen A. Enantiomerically Pure [M6L12] or [M12L24] Polyhedra from Flexible Bis(Pyridine) Ligands. Angew Chem Int Ed Engl 2014; 53:1693-8. [DOI: 10.1002/anie.201308651] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Indexed: 12/27/2022]
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180
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Gütz C, Hovorka R, Klein C, Jiang QQ, Bannwarth C, Engeser M, Schmuck C, Assenmacher W, Mader W, Topić F, Rissanen K, Grimme S, Lützen A. Enantiomerenreine [M6L12]- oder [M12L24]-Polyeder aus flexiblen Bis(pyridin)-Liganden. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201308651] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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181
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Jiao Y, Wang J, Wu P, Zhao L, He C, Zhang J, Duan C. Cerium-based M4L4 tetrahedra as molecular flasks for selective reaction prompting and luminescent reaction tracing. Chemistry 2014; 20:2224-31. [PMID: 24449406 DOI: 10.1002/chem.201303560] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Indexed: 11/06/2022]
Abstract
The application of metal-organic polyhedra as "molecular flasks" has precipitated a surge of interest in the reactivity and property of molecules within well-defined spaces. Inspired by the structures of the natural enzymatic pockets, three metal-organic neutral molecular tetrahedral, Ce-TTS, Ce-TNS and Ce-TBS (H6TTS: N',N'',N'''-nitrilotris-4,4',4''-(2-hydroxybenzylidene)-benzohydrazide; H6TNS: N',N'',N'''-nitrilotris-6,6',6''-(2-hydroxybenzylidene)-2-naphthohydrazide; H6TBS: 1,3,5-phenyltris-4,4',4''-(2-hydroxybenzylidene)benzohydrazide), which exhibit different size of the edges and cavities, were achieved through self-assembly by incorporating robust amide-containing tridentate chelating sites into the fragments of the ligands. They acted as molecular flasks to prompt the cyanosilylation of aldehydes with excellent selectivity towards the substrates size. The amide groups worked as trigger sites and catalytic driven forces to achieve efficient guest interactions, enforcing the substrates proximity within the cavity. Experiments on catalysts with the different cavity radii and substrates with the different molecular size demonstrated that the catalytic performance exhibited enzymatical catalytic mechanism and occurred in the molecular flask. These amides were also able to amplify guest-bonding events into the measurable outputs for the detection of concentration variations of the substrates, providing the possibility for metal-organic hosts to work as smart molecular flasks for the luminescent tracing of catalytic reactions.
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Affiliation(s)
- Yang Jiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Linggong Road 2, Dalian,116024 (China)
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182
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Desmarets C, Ducarre T, Rager MN, Gontard G, Amouri H. Self-Assembled M₂L₄ Nanocapsules: Synthesis, Structure and Host-Guest Recognition Toward Square Planar Metal Complexes. MATERIALS 2014; 7:287-301. [PMID: 28788457 PMCID: PMC5453161 DOI: 10.3390/ma7010287] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 11/28/2013] [Accepted: 12/17/2013] [Indexed: 01/13/2023]
Abstract
Metallosupramolecular cages of the general formulas [M2(L)4][X]4 can be self-assembled in good yields, where M = Pd, X = NO3, L = L1 (1a); M = Pd, X = OTf, L = L1 (1b); M = Pt, X = OTf, L = L1 (2); M = Pd, X = OTf, L = L2 (3); L1 = 1,3-bis(pyridin-3-ylethynyl)-5-methoxybenzene; and L2 = 2,6-(pyridin-3-ylethynyl)-4-methoxyaniline, respectively. These cages have been fully characterized using 1H, 13C NMR, elemental analysis, IR spectroscopy, and electrospray mass spectrometry. Additionally the molecular structure of [Pd2(L1)4][OTf]4 (1b) was confirmed using single crystal X-ray diffraction. The capacity of central cavities of M2L4 cages to accommodate square planar metal complexes was investigated. In particular, the tetracationic cage [Pd2(L2)4][OTf]4 (3) was found to encapsulate the anionic metal complex [PtCl4]2− through electrostatic interactions and also via hydrogen bonding with the amino groups of the bridging ligand displayed by this nanocage.
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Affiliation(s)
- Christophe Desmarets
- Sorbonne Universités, UPMC Univ Paris 06, Université Pierre et Marie Curie, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
- CNRS, Centre National de la Recherche Scientifique, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
| | - Thierry Ducarre
- Sorbonne Universités, UPMC Univ Paris 06, Université Pierre et Marie Curie, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
- CNRS, Centre National de la Recherche Scientifique, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
| | - Marie Noelle Rager
- NMR Services of Ecole Nationale Supérieure de Chimie de Paris, Institut de Recherche de Chimie Paris (IRCP) UMR 8247, Chimie-ParisTech, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
| | - Geoffrey Gontard
- Sorbonne Universités, UPMC Univ Paris 06, Université Pierre et Marie Curie, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
- CNRS, Centre National de la Recherche Scientifique, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
| | - Hani Amouri
- Sorbonne Universités, UPMC Univ Paris 06, Université Pierre et Marie Curie, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
- CNRS, Centre National de la Recherche Scientifique, Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232, 4 place Jussieu, 75252 Paris cedex 05, France.
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183
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Reichel F, Clegg JK, Gloe K, Gloe K, Weigand JJ, Reynolds JK, Li CG, Aldrich-Wright JR, Kepert CJ, Lindoy LF, Yao HC, Li F. Self-Assembly of an Imidazolate-Bridged FeIII/CuII Heterometallic Cage. Inorg Chem 2014; 53:688-90. [DOI: 10.1021/ic402686s] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Florian Reichel
- School of Science and Health, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia
- Department of Chemistry
and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane St. Lucia, QLD 4072, Australia
| | - Karsten Gloe
- Department of Chemistry
and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Kerstin Gloe
- Department of Chemistry
and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Jan J. Weigand
- Department of Chemistry
and Food Chemistry, TU Dresden, 01062 Dresden, Germany
| | - Jason K. Reynolds
- School of Science and Health, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Chun-Guang Li
- School of Science and Health, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Janice R. Aldrich-Wright
- School of Science and Health, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia
| | | | | | - Hong-Chang Yao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan, P. R. China
| | - Feng Li
- School of Science and Health, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia
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184
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Shankar B, Sahu S, Deibel N, Schweinfurth D, Sarkar B, Elumalai P, Gupta D, Hussain F, Krishnamoorthy G, Sathiyendiran M. Luminescent Dirhenium(I)-Double-Heterostranded Helicate and Mesocate. Inorg Chem 2014; 53:922-30. [DOI: 10.1021/ic4023135] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Saugata Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India
| | - Naina Deibel
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - David Schweinfurth
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
- Institut für
Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, D-14195 Berlin, Germany
| | - Biprajit Sarkar
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
- Institut für
Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, D-14195 Berlin, Germany
| | - Palani Elumalai
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Deepak Gupta
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Firasat Hussain
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
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185
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Datta A, Das K, Massera C, Clegg JK, Sinha C, Huang JH, Garribba E. A mixed valent heterometallic CuII/NaI coordination polymer with sodium–phenyl bonds. Dalton Trans 2014; 43:5558-63. [DOI: 10.1039/c4dt00189c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mixed valent heterometallic CuII/NaI coordination polymer (1) is generated by the reaction of a Schiff base ligand, (6,6′-(1E,1′E)-(2-hydroxypropane-1,3-diyl)bis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(2-methoxyphenol)) with copper(ii) acetate and sodium perchlorate.
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Affiliation(s)
- Amitabha Datta
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058, Taiwan
| | - Kuheli Das
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032, India
| | - Chiara Massera
- Dipartimento di Chimica
- Università degli Studi di Parma
- 43124 Parma, Italy
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Brisbane St Lucia, Australia
| | - Chittaranjan Sinha
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032, India
| | - Jui-Hsien Huang
- Department of Chemistry
- National Changhua University of Education
- Changhua 50058, Taiwan
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia
- and Centro Interdisciplinare per lo Sviluppo della Ricerca Biotecnologica e per lo Studio della Biodiversità della Sardegna
- Università di Sassari
- I-07100 Sassari, Italy
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186
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Metherell AJ, Ward MD. Stepwise synthesis of a Ru4Cd4 coordination cage using inert and labile subcomponents: introduction of redox activity at specific sites. Chem Commun (Camb) 2014; 50:6330-2. [DOI: 10.1039/c4cc02627f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Combination of four [RuL3]2+ units, each with three pendant binding sites, and four Cd2+ ions affords the redox-active, heteronuclear, cubic cage [Ru4Cd4L12]16+.
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187
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Lewis JEM, Elliott ABS, McAdam CJ, Gordon KC, Crowley JD. ‘Click’ to functionalise: synthesis, characterisation and enhancement of the physical properties of a series of exo- and endo-functionalised Pd2L4nanocages. Chem Sci 2014. [DOI: 10.1039/c4sc00434e] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Facile CuAAC ‘click’ chemistry has been utilised toexo-functionalise Pd2L4host nanocages with electrochemically active, emissive and solubilising groups.
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Affiliation(s)
| | - Anastasia B. S. Elliott
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
- New Zealand
| | - C. John McAdam
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
| | - Keith C. Gordon
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
- New Zealand
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188
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Custelcean R. Anion encapsulation and dynamics in self-assembled coordination cages. Chem Soc Rev 2014; 43:1813-24. [DOI: 10.1039/c3cs60371g] [Citation(s) in RCA: 197] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Coordination cages functioning as anion receptors are reviewed, emphasizing the cage structures and the dynamics of anion encapsulation and exchange.
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Affiliation(s)
- Radu Custelcean
- Chemical Sciences Division
- Oak Ridge National Laboratory
- Oak Ridge, USA
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189
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Zhang J, Yu H, Zhang C, He C, Duan C. Cerium-based M4L4 tetrahedrons containing hydrogen bond groups as functional molecular flasks for selective reaction prompting. NEW J CHEM 2014. [DOI: 10.1039/c4nj00062e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Metal–organic tetrahedrons with abundant hydrogen bond groups work as “molecular flasks” to prompt Knoevenagel condensation and cyanosilylation reactions.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian, China
| | - Hao Yu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian, China
| | - Caixia Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian, China
| | - Cheng He
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian, China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian, China
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190
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Aguiló J, Naeimi A, Bofill R, Mueller-Bunz H, Llobet A, Escriche L, Sala X, Albrecht M. Dinuclear ruthenium complexes containing a new ditopic phthalazin-bis(triazole) ligand that promotes metal–metal interactions. NEW J CHEM 2014. [DOI: 10.1039/c3nj01209c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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191
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Cholewa PP, Dalgarno SJ. Metal–organic calixarene capsules: the evolution of controlled assembly. CrystEngComm 2014. [DOI: 10.1039/c3ce42169d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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192
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Metherell AJ, Cullen W, Stephenson A, Hunter CA, Ward MD. Fac and mer isomers of Ru(ii) tris(pyrazolyl-pyridine) complexes as models for the vertices of coordination cages: structural characterisation and hydrogen-bonding characteristics. Dalton Trans 2014; 43:71-84. [DOI: 10.1039/c3dt52479e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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193
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Li F, Sciortino NF, Clegg JK, Neville SM, Kepert CJ. Self-Assembly of an Octanuclear High-Spin FeII Molecular Cage. Aust J Chem 2014. [DOI: 10.1071/ch14404] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A discrete octanuclear high-spin FeII cage [Fe8L12](BF4)16·n(solvent) was synthesised via metal ion-directed self-assembly. The cage formation is facilitated by incorporating a relatively flexible ditopic ligand with chelating pyrazolyl–pyridine functional units. The synthesis, structure, and magnetic properties of this metallo-cage are presented.
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194
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Castilla AM, Ousaka N, Bilbeisi RA, Valeri E, Ronson TK, Nitschke JR. High-Fidelity Stereochemical Memory in a FeII4L4 Tetrahedral Capsule. J Am Chem Soc 2013; 135:17999-8006. [DOI: 10.1021/ja410117q] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ana M. Castilla
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Naoki Ousaka
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Rana A. Bilbeisi
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Elisa Valeri
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Tanya K. Ronson
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
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195
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Ramsay WJ, Ronson TK, Clegg JK, Nitschke JR. Bidirectional Regulation of Halide Binding in a Heterometallic Supramolecular Cube. Angew Chem Int Ed Engl 2013; 52:13439-43. [DOI: 10.1002/anie.201307478] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Indexed: 01/07/2023]
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196
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Ramsay WJ, Ronson TK, Clegg JK, Nitschke JR. Bidirectional Regulation of Halide Binding in a Heterometallic Supramolecular Cube. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307478] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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197
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Efficient Electronic Communication of Two Ruthenium Centers through a Rigid Ditopic N‐Heterocyclic Carbene Linker. Chemistry 2013; 19:17517-27. [DOI: 10.1002/chem.201302688] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Indexed: 11/07/2022]
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198
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Djeda R, Desmarets C, Chamoreau LM, Li Y, Journaux Y, Gontard G, Amouri H. Meso-helicates with rigid angular tetradentate ligand: design, molecular structures, and progress towards self-assembly of metal-organic nanotubes. Inorg Chem 2013; 52:13042-7. [PMID: 24171496 DOI: 10.1021/ic4017195] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The self-assembly of two novel metallosupramolecular complexes of the general formulas [L2M2(CH3CN)4][BF4]4 (M = Co, 1a; M = Ni, 1b), where L stands for the tetradentate ligand 3,5-bis[4-(2,2'-dipyridylamino)phenylacetylenyl]toluene, is reported together with their molecular structures ascertained by single-crystal X-ray diffraction studies. Complexes 1a and 1b are isostructural and show the formation of dinuclear meso-helicates with the two octahedral metal centers displaying respectively Δ and Λ configurations. These meso-helicates display large nanocavities with metal---metal separation distance of >2 nm; furthermore, π-π-stacking occurs among individual units to form one-dimensional (1D) polymers which further autoassemble in another direction through π-π contacts among neighboring chains to generate a two-dimensional (2D) network with regular nanocavities. Our approach might be of interest to prepare metal-organic nanotubes via a bottom-up strategy depending on the assembling functional ligand and the geometry of molecular building block.
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Affiliation(s)
- Rodrigue Djeda
- UPMC Université Paris 06 , Institut Parisien de Chimie Moléculaire (UMR CNRS 7201), 4 Place Jussieu, C. 42, 75252 Paris Cedex 05, France
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199
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Sykes D, Parker SC, Sazanovich IV, Stephenson A, Weinstein JA, Ward MD. d→f energy transfer in Ir(III)/Eu(III) dyads: use of a naphthyl spacer as a spatial and energetic "stepping stone". Inorg Chem 2013; 52:10500-11. [PMID: 24007190 PMCID: PMC3971759 DOI: 10.1021/ic401410g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Indexed: 02/04/2023]
Abstract
A series of luminescent complexes based on {Ir(phpy)2} (phpy = cyclometallating anion of 2-phenylpyridine) or {Ir(F2phpy)2} [F2phpy = cyclometallating anion of 2-(2',4'-difluorophenyl)pyridine] units, with an additional 3-(2-pyridyl)-pyrazole (pypz) ligand, have been prepared; fluorination of the phenylpyridine ligands results in a blue-shift of the usual (3)MLCT/(3)LC luminescence of the Ir unit from 477 to 455 nm. These complexes have pendant from the coordinated pyrazolyl ring an additional chelating 3-(2-pyridyl)-pyrazole unit, separated via a flexible chain containing a naphthalene-1,4-diyl or naphthalene-1,5-diyl spacer. Crystal structures show that the flexibility of the pendant chain allows the naphthyl group to lie close to the Ir core and participate in a π-stacking interaction with a coordinated phpy or F2phpy ligand. Luminescence spectra show that, whereas the {Ir(phpy)2(pypz)} complexes show typical Ir-based emission--albeit with lengthened lifetimes because of interaction with the stacked naphthyl group--the {Ir(F2phpy)2(pypz)} complexes are nearly quenched. This is because the higher energy of the Ir-based (3)MLCT/(3)LC excited state can now be quenched by the adjacent naphthyl group to form a long-lived naphthyl-centered triplet ((3)nap) state which is detectable by transient absorption. Coordination of an {Eu(hfac)3} unit (hfac = 1,1,1,5,5,5-hexafluoro-pentane-2,4-dionate) to the pendant pypz binding site affords Ir-naphthyl-Eu triads. For the triads containing a {Ir(phpy)2} core, the unavailability of the (3)nap state (not populated by the Ir-based excited state which is too low in energy) means that direct Ir→Eu energy-transfer occurs in the same way as in other flexible Ir/Eu complexes. However for the triads based on the{Ir(F2phpy)2} core, the initial Ir→(3)nap energy-transfer step is followed by a second, slower, (3)nap→Eu energy-transfer step: transient absorption measurements clearly show the (3)nap state being sensitized by the Ir center (synchronous Ir-based decay and (3)nap rise-time) and then transferring its energy to the Eu center (synchronous (3)nap decay and Eu-based emission rise time). Thus the (3)nap state, which is energetically intermediate in the {Ir(F2phpy)2}-naphthyl-Eu systems, can act as a "stepping stone" for two-step d→f energy-transfer.
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Affiliation(s)
- Daniel Sykes
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Simon C. Parker
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Igor V. Sazanovich
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Andrew Stephenson
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Julia A. Weinstein
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
| | - Michael D. Ward
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.
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Shankar B, Elumalai P, Shanmugam R, Singh V, Masram DT, Sathiyendiran M. New Class of Phosphine Oxide Donor-Based Supramolecular Coordination Complexes from an in Situ Phosphine Oxidation Reaction or Phosphine Oxide Ligands. Inorg Chem 2013; 52:10217-9. [DOI: 10.1021/ic401257w] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Palani Elumalai
- Department of Chemistry, University of Delhi, Delhi 110 007, India
| | | | - Virender Singh
- Department of Chemistry, University of Delhi, Delhi 110 007, India
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