1
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López‐Moreno A, Ibáñez S, Moreno‐Da Silva S, Ruiz‐González L, Sabanés NM, Peris E, Pérez EM. Single‐Walled Carbon Nanotubes Encapsulated within Metallacycles. Angew Chem Int Ed Engl 2022; 61:e202208189. [PMID: 35789180 PMCID: PMC9544689 DOI: 10.1002/anie.202208189] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Indexed: 12/28/2022]
Abstract
Mechanically interlocked derivatives of carbon nanotubes (MINTs) are interesting nanotube products since they show high stability without altering the carbon nanotube structure. So far, MINTs have been synthesized using ring‐closing metathesis, disulfide exchange reaction, H‐bonding or direct threading with macrocycles. Here, we describe the encapsulation of single‐walled carbon nanotubes within a palladium‐based metallosquare. The formation of MINTs was confirmed by a variety of techniques, including high‐resolution transmission electron microscopy. We find the making of these MINTs is remarkably sensitive to structural variations of the metallo‐assemblies. When a metallosquare with a cavity of appropriate shape and size is used, the formation of the MINT proceeds successfully by both templated clipping and direct threading. Our studies also show indications on how supramolecular coordination complexes can help expand the potential applications of MINTs.
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Affiliation(s)
| | - Susana Ibáñez
- Institute of Advanced Materials (INAM) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universitat Jaume I Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | | | - Luisa Ruiz‐González
- Departamento de Química Inorgánica and Centro Nacional de Microscopía Electrónica Universidad Complutense de Madrid 28040 Madrid Spain
| | | | - Eduardo Peris
- Institute of Advanced Materials (INAM) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universitat Jaume I Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
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2
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López-Moreno A, Ibáñez S, Moreno-Da Silva S, Ruiz-González L, Martín Sabanés N, Peris E, Pérez EM. Single‐Walled Carbon Nanotubes Encapsulated within Metallacycles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Susana Ibáñez
- Universitat Jaume I: Universitat Jaume I Instituto de Materiales Avanzados, INAM SPAIN
| | | | | | | | - Eduardo Peris
- Universitat Jaume I: Universitat Jaume I Institute of Advanced Materials (INAM) SPAIN
| | - Emilio M. Pérez
- IMDEA Nanoscience - Faraday 9, Ciudad Universitaria de Cantoblanco 28049 Madrid SPAIN
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3
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Liu D, Lin YJ, Jin GX. Guest Encapsulation and Self-Assembly of a Box-like Metalla-Rectangle Featuring Cp*Rh Fragments. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Poyatos M, Peris E. Insights into the past and future of Janus-di-N-heterocyclic carbenes. Dalton Trans 2021; 50:12748-12763. [PMID: 34581341 DOI: 10.1039/d1dt02035h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Janus di-N-heterocyclic carbene (NHC) ligands are a subclass of poly-NHCs that feature coordination to two transition metals in a facially opposed manner. The combination of the structural features of Janus type ligands, with the properties conferred by the NHC ligands, has conferred Janus-di-NHCs with privileged attributes for their use in diverse areas of research, such as homogeneous catalysis, materials chemistry and supramolecular chemistry. In molecular chemistry, Janus di-NHCs constitute one of the most useful chemical platforms for constructing dimetallic structures, and this includes both homo- and hetero-dimetallic compounds. This review aims to cover the most relevant advances in the use of Janus-di-NHCs during the last 15 years, by classifying them according to their specific structural features.
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Affiliation(s)
- Macarena Poyatos
- Institute of Advanced Materials (INAM), Universitat Jaume I, Av. Vicente Sos Baynat s/n, Castellón, E-1271, Spain.
| | - Eduardo Peris
- Institute of Advanced Materials (INAM), Universitat Jaume I, Av. Vicente Sos Baynat s/n, Castellón, E-1271, Spain.
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5
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Ruiz‐Zambrana C, Gutiérrez‐Blanco A, Gonell S, Poyatos M, Peris E. Redox‐Switchable Cycloisomerization of Alkynoic Acids with Napthalenediimide‐Derived N‐Heterocyclic Carbene Complexes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- César Ruiz‐Zambrana
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Ana Gutiérrez‐Blanco
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Sergio Gonell
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
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6
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Ruiz-Zambrana C, Gutiérrez-Blanco A, Gonell S, Poyatos M, Peris E. Redox-Switchable Cycloisomerization of Alkynoic Acids with Napthalenediimide-Derived N-Heterocyclic Carbene Complexes. Angew Chem Int Ed Engl 2021; 60:20003-20011. [PMID: 34255909 PMCID: PMC8457061 DOI: 10.1002/anie.202107973] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 12/22/2022]
Abstract
Two naphthalene‐diimide (NDI) bis‐imidazolium salts have been used as N‐heterocyclic carbene (NHC) precursors for the preparation of NDI‐functionalized complexes of rhodium and iridium of general formula [MCl(NDI‐NHC)(COD)] (M=Rh, Ir; NDI‐NHC=NDI‐functionalized NHC ligand). Comparison of the IR spectra of the complexes [IrCl(NDI‐NHC)(CO)2] and their related one‐ and two‐electron reduced forms, reveal that each one‐electron reduction produces a decrease of the average ν(CO) of 9–10 cm−1, indicating a significant enhancement of the electron‐richness of the metal. The [MCl(NDI‐NHC)(COD)] complexes were tested in the catalytic cycloisomerization of alkynoic acids. The one‐electron reduced forms showed greatly enhanced activities. For the cyclization of 5‐hexynoic acid, the two‐electron reduction of the ligand produced further enhancement of the catalytic activity, therefore showing that the catalyst can switch between three redox species with three distinct catalytic activities.
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Affiliation(s)
- César Ruiz-Zambrana
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Ana Gutiérrez-Blanco
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Sergio Gonell
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
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7
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Vicent C, Martinez‐Agramunt V, Gandhi V, Larriba‐Andaluz C, Gusev DG, Peris E. Ion Mobility Mass Spectrometry Uncovers Guest‐Induced Distortions in a Supramolecular Organometallic Metallosquare. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100914] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Cristian Vicent
- Servei Central d'Instrumentació Científica (SCIC) Universitat Jaume I Avda. Sos Baynat s/n 12006 Castellón Spain
| | - Victor Martinez‐Agramunt
- Institute of Advanced Materials (INAM) Universitat Jaume I Av. Vicente Sos Baynat s/n 12071 Castellón Spain
| | - Viraj Gandhi
- Department of Mechanical and Energy Engineering IUPUI Indianapolis IN 46206 USA
| | | | - Dmitry G. Gusev
- Department of Chemistry and Biochemistry Wilfrid Laurier University 75 University Avenue West Waterloo Ontario N2L 3C5 Canada
| | - Eduardo Peris
- Institute of Advanced Materials (INAM) Universitat Jaume I Av. Vicente Sos Baynat s/n 12071 Castellón Spain
- Department of Mechanical and Energy Engineering IUPUI Indianapolis IN 46206 USA
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Vicent C, Martinez‐Agramunt V, Gandhi V, Larriba‐Andaluz C, Gusev DG, Peris E. Ion Mobility Mass Spectrometry Uncovers Guest-Induced Distortions in a Supramolecular Organometallic Metallosquare. Angew Chem Int Ed Engl 2021; 60:15412-15417. [PMID: 33783064 PMCID: PMC8361979 DOI: 10.1002/anie.202100914] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Indexed: 12/21/2022]
Abstract
The encapsulation of the tetracationic palladium metallosquare with four pyrene-bis-imidazolylidene ligands [1]4+ with a series of organic molecules was studied by Electrospray ionization Travelling Wave Ion-Mobility Mass Spectrometry (ESI TWIM-MS). The method allowed to determine the Collision Cross Sections (CCSs), which were used to assess the size changes experienced by the host upon encapsulation of the guest molecules. When fullerenes were used as guests, the host is expanded ΔCCS 13 Å2 and 23 Å2 , for C60 or C70 , respectively. The metallorectangle [1]4+ was also used for the encapsulation of a series of polycyclic aromatic hydrocarbons (PAHs) and naphthalenetetracarboxylic diimide (NTCDI), to form complexes of formula [(NTCDI)2 (PAH)@1]4+ . For these host:guest adducts, the ESI IM-MS studies revealed that [1]4+ is expanded by 47-49 Å2 .. The energy-minimized structures of [1]4+ , [C60 @1]4+ , [C70 @1]4+ , [(NTCDI)2 (corannulene)@1]4+ in the gas phase were obtained by DFT calculations.Introduction.
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Affiliation(s)
- Cristian Vicent
- Servei Central d'Instrumentació Científica (SCIC)Universitat Jaume IAvda. Sos Baynat s/n12006CastellónSpain
| | - Victor Martinez‐Agramunt
- Institute of Advanced Materials (INAM)Universitat Jaume IAv. Vicente Sos Baynat s/n12071CastellónSpain
| | - Viraj Gandhi
- Department of Mechanical and Energy EngineeringIUPUIIndianapolisIN46206USA
| | | | - Dmitry G. Gusev
- Department of Chemistry and BiochemistryWilfrid Laurier University75 University Avenue WestWaterlooOntarioN2L 3C5Canada
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)Universitat Jaume IAv. Vicente Sos Baynat s/n12071CastellónSpain
- Department of Mechanical and Energy EngineeringIUPUIIndianapolisIN46206USA
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9
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Longevial J, Rose C, Poyac L, Clément S, Richeter S. Molecular Systems Combining Porphyrinoids and N‐Heterocyclic Carbenes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Clémence Rose
- ICGM Univ. Montpellier CNRS ENSCM 34000 Montpellier France
| | - Ludivine Poyac
- ICGM Univ. Montpellier CNRS ENSCM 34000 Montpellier France
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10
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Ibáñez S, Gusev DG, Peris E. Unexpected Influence of Substituents on the Binding Affinities of Polycyclic Aromatic Hydrocarbons with a Tetra-Au(I) Metallorectangle. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Jaume I, Av. Vicente Sos Baynat s/n, Castellón E-12071, Spain
| | - Dmitry G. Gusev
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, Waterloo, Ontario N2L 3C5 Canada
| | - Eduardo Peris
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Jaume I, Av. Vicente Sos Baynat s/n, Castellón E-12071, Spain
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11
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Feng T, Li X, An Y, Bai S, Sun L, Li Y, Wang Y, Han Y. Backbone‐Directed Self‐Assembly of Interlocked Molecular Cyclic Metalla[3]Catenanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ting Feng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Xin Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Sha Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Li‐Ying Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yao‐Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
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12
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Ibáñez S, Poyatos M, Peris E. N-Heterocyclic Carbenes: A Door Open to Supramolecular Organometallic Chemistry. Acc Chem Res 2020; 53:1401-1413. [PMID: 32644769 DOI: 10.1021/acs.accounts.0c00312] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The field of metallosupramolecular chemistry is clearly dominated by the use of O-, N-, and P-donor Werner-type polydentate ligands. These molecular architectures are of high interest because of their wide range of applications, which include molecular encapsulation, stabilization of reactive species, supramolecular catalysis, and drug delivery, among others. Only recently, organometallic ligands have allowed the preparation of a variety of supramolecular coordination complexes, and the term supramolecular organometallic complexes (SOCs) is gaining space within the field of metallosupramolecular chemistry. While the early examples of SOCs referred to supramolecular architectures mostly containing bisalkenyl, diphenyl, or bisalkynyl linkers, the development of SOCs during the past decade has been boosted by the parallel development of multidentate N-heterocyclic carbene (NHC) ligands. The first examples of NHC-based SOCs referred to supramolecular assemblies based on polydentate NHC ligands bound to group 11 metals. However, during the last 10 years, several planar poly-NHC ligands containing extended π-conjugated systems have facilitated the formation of a large variety of architectures in which the supramolecular assemblies can contain metals other than Cu, Ag, and Au. Such ligands are Janus di-NHCs and trigonal-planar tris-NHCs-most of them prepared by our research group-which have allowed the preparation of a vast range of NHC-based metallosupramolecular compounds with interesting host-guest chemistry properties. Although the number of SOCs has increased in the past few years, their use for host-guest chemistry purposes is still in its earliest infancy. In this Account, we describe the achievements that we have made during the last 4 years toward broadening the applications of planar extended π-conjugated NHC ligands for the preparation of organometallic-based supramolecular structures, including their use as hosts for some selected organic and inorganic guests, together with the catalytic properties displayed by some selected host-guest inclusion complexes. Our contribution describes the design of several Ni-, Pd-, and Au-based metallorectangles and metalloprisms, which we used for the encapsulation of several organic substrates, such as polycyclic aromatic hydrocarbons (PAHs) and fullerenes. The large binding affinities found are ascribed to the incorporation of two cofacial panels with large π-conjugated systems, which provide the optimum conditions for guest recognition by π-π-stacking interactions. We also describe a series of digold(I) metallotweezers for the recognition of organic and inorganic substrates. These metallotweezers were used for the recognition of "naked" metal cations and polycyclic aromatic hydrocarbons. The recognition properties of these metallotweezers are highly dependent on the nature of the rigid connector and of the ancillary ligands that constitute the arms of the tweezer. A peculiar balance between the self-aggregation properties of the tweezer and its ability to encapsulate organic guests is observed.
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Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Jaume I, Av. Vicente Sos Baynat s/n, E-12071 Castellón, Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Jaume I, Av. Vicente Sos Baynat s/n, E-12071 Castellón, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universitat Jaume I, Av. Vicente Sos Baynat s/n, E-12071 Castellón, Spain
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13
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Feng T, Li X, An Y, Bai S, Sun L, Li Y, Wang Y, Han Y. Backbone‐Directed Self‐Assembly of Interlocked Molecular Cyclic Metalla[3]Catenanes. Angew Chem Int Ed Engl 2020; 59:13516-13520. [DOI: 10.1002/anie.202004112] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/20/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Ting Feng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Xin Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Sha Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Li‐Ying Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yao‐Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710127 P. R. China
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14
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Ibáñez S, Peris E. Dimensional Matching versus Induced‐Fit Distortions: Binding Affinities of Planar and Curved Polyaromatic Hydrocarbons with a Tetragold Metallorectangle. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM)Universitat Jaume I Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)Universitat Jaume I Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
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15
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Ibáñez S, Peris E. Dimensional Matching versus Induced-Fit Distortions: Binding Affinities of Planar and Curved Polyaromatic Hydrocarbons with a Tetragold Metallorectangle. Angew Chem Int Ed Engl 2020; 59:6860-6865. [PMID: 32053282 DOI: 10.1002/anie.201915401] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/24/2020] [Indexed: 11/07/2022]
Abstract
A tetragold(I) rectangle-like metallocage containing two pyrene-bis-imidazolylidene ligands and two carbazolyl-bis-alkynyl linkers is used for the encapsulation of a series of polycyclic aromatic hydrocarbons (PAHs), including corannulene. The binding affinities obtained for the encapsulation of the planar PAHs guests in CD2 Cl2 are found to exponentially increase with the number of π-electrons of the guest (1.3 > logK >6.6). For the bowl-shaped molecule of corannulene, the association constant is much lower than the expected one according to its number of electrons. The molecular structure of the host-guest complex formed with corannulene shows that the molecule of the guest is compressed, while the host is expanded, thus showing an interesting case of artificial mutual induced-fit arrangement.
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Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM), Universitat Jaume I, Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM), Universitat Jaume I, Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
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16
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Baron M, Dall’Anese A, Miolato A, Cairoli MLC, Di Marco V, Graiff C, Pöthig A, Tubaro C. New homoleptic gold carbene complexes via Ag–Au transmetalation: synthesis and application of [Au(diNHC) 2] 3+ cations as 1H-NMR and UV-vis halide sensors. NEW J CHEM 2020. [DOI: 10.1039/c9nj05809e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Novel homoleptic gold(iii) complexes with bidentate N-heterocyclic carbene ligands have been successfully synthesised by transmetalation reaction and studied as anion sensors in solution by means of 1H NMR and UV-vis titration experiments.
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Affiliation(s)
- Marco Baron
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Anna Dall’Anese
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Alessandro Miolato
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | | | - Valerio Di Marco
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche
- della Vita e della Sostenibilità Ambientale
- Università degli Studi di Parma
- 43124 Parma
- Italy
| | - Alexander Pöthig
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- Garching
- Germany
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
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