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Cáceres-Vásquez J, Jara DH, Costamagna J, Martínez-Gómez F, Silva CP, Lemus L, Freire E, Baggio R, Vera C, Guerrero J. Effect of non-covalent self-dimerization on the spectroscopic and electrochemical properties of mixed Cu(i) complexes. RSC Adv 2023; 13:825-838. [PMID: 36686905 PMCID: PMC9810106 DOI: 10.1039/d2ra05341a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/06/2022] [Indexed: 01/05/2023] Open
Abstract
A series of six new Cu(i) complexes with ([Cu(N-{4-R}pyridine-2-yl-methanimine)(PPh3)Br]) formulation, where R corresponds to a donor or acceptor p-substituent, have been synthesized and were used to study self-association effects on their structural and electrochemical properties. X-ray diffraction results showed that in all complexes the packing is organized from a dimer generated by supramolecular π stacking and hydrogen bonding. 1H-NMR experiments at several concentrations showed that all complexes undergo a fast-self-association monomer-dimer equilibrium in solution, while changes in resonance frequency towards the high or low field in specific protons of the imine ligand allow establishing that dimers have similar structures to those found in the crystal. The thermodynamic parameters for this self-association process were calculated from dimerization constants determined by VT-1H-NMR experiments for several concentrations at different temperatures. The values for K D (4.0 to 70.0 M-1 range), ΔH (-1.4 to -2.6 kcal mol-1 range), ΔS (-0.2 to 2.1 cal mol-1 K-1 range), and ΔG 298 (-0.8 to -2.0 kcal mol-1 range) are of the same order and indicate that the self-dimerization process is enthalpically driven for all complexes. The electrochemical profile of the complexes shows two redox Cu(ii)/Cu(i) processes whose relative intensities are sensitive to concentration changes, indicating that both species are in chemical equilibrium, with the monomer and the dimer having different electrochemical characteristics. We associate this behaviour with the structural lability of the Cu(i) centre that allows the monomeric molecules to reorder conformationally to achieve a more adequate assembly in the non-covalent dimer. As expected, structural properties in the solid and in solution, as well as their electrochemical properties, are not correlated with the electronic parameters usually used to evaluate R substituent effects. This confirms that the properties of the Cu(i) complexes are usually more influenced by steric effects than by the inductive effects of substituents of the ligands. In fact, the results obtained showed the importance of non-covalent intermolecular interactions in the structuring of the coordination geometry around the Cu centre and in the coordinative stability to avoid dissociative equilibria.
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Affiliation(s)
- Joaquín Cáceres-Vásquez
- Laboratorio de Compuestos de Coordinación y Química Supramolecular, Facultad de Química y Biología, Universidad de Santiago de ChileAv. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
| | - Danilo H. Jara
- Facultad de Ingenieria y Ciencias, Universidad Adolfo IbáñezAv. Padre Hurtado 750Viña del MarChile
| | - Juan Costamagna
- Laboratorio de Compuestos de Coordinación y Química Supramolecular, Facultad de Química y Biología, Universidad de Santiago de ChileAv. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile,Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
| | - Fabián Martínez-Gómez
- Laboratorio de Compuestos de Coordinación y Química Supramolecular, Facultad de Química y Biología, Universidad de Santiago de ChileAv. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile,Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
| | - Carlos P. Silva
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
| | - Luis Lemus
- Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
| | - Eleonora Freire
- Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía AtómicaAvenida Gral. Paz 1499, 1650, San MartínBuenos AiresArgentina,Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, Argentina and Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía AtómicaBuenos AiresArgentina,Member of CONICETArgentina
| | - Ricardo Baggio
- Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía AtómicaAvenida Gral. Paz 1499, 1650, San MartínBuenos AiresArgentina
| | - Cristian Vera
- Laboratorio de Compuestos de Coordinación y Química Supramolecular, Facultad de Química y Biología, Universidad de Santiago de ChileAv. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
| | - Juan Guerrero
- Laboratorio de Compuestos de Coordinación y Química Supramolecular, Facultad de Química y Biología, Universidad de Santiago de ChileAv. Libertador Bernardo O'Higgins 3363, Estación Central, Casilla 40, Correo 33SantiagoChile
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2
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Cationic iridium (III) complexes bearing fluorinated Ar-BIAN ligands: Synthesis, structure, electronic, and electrochemical properties. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Kirste M, Brietzke T, Holdt HJ, Schilde U. The crystal structure of 1,12-diazaperylene, C18H10N2. Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2019-0385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractC18H10N2, monoclinic, P21/c (no. 14), a = 7.9297(9) Å, b = 11.4021(14) Å, c = 13.3572(15) Å, β = 105.363(8)°, V = 1164.5(2) Å3, Z = 4, Rgt(F) = 0.0325, wRref(F2) = 0.0774, T = 210(2) K.
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Affiliation(s)
- Matthias Kirste
- Universität Potsdam, Institut für Chemie, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Thomas Brietzke
- Universität Potsdam, Institut für Chemie, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Hans-Jürgen Holdt
- Universität Potsdam, Institut für Chemie, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
| | - Uwe Schilde
- Universität Potsdam, Institut für Chemie, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam, Germany
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5
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Starke I, Koch A, Kammer S, Holdt HJ, Möller HM. Electrospray mass spectrometry and molecular modeling study of formation and stability of silver complexes with diazaperylene and bisisoquinoline. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:408-418. [PMID: 29453784 DOI: 10.1002/jms.4071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 02/01/2018] [Accepted: 02/07/2018] [Indexed: 06/08/2023]
Abstract
The complex formation of the following diazaperylene ligands (L) 1,12-diazaperylene 1, 1,1'-bisisoquinoline 2, 2,11-disubstituted 1,12-diazaperylenes (alkyl = methyl, ethyl, isopropyl, 3, 5, 7), 3,3'-disubstituted 1,1'-bisisoquinoline (alkyl = methyl, ethyl, isopropyl, 4, 6, 8 and with R = phenyl, 11 and with pyridine 12), and the 5,8-dimethoxy-substituted diazaperylene 9, 6,6'-dimethoxy-substituted bisisoquinoline 10 with AgBF4 was investigated. Collision-induced dissociation measurements were used to evaluate the relative stabilities of the ligands themselves and for the [1:1]+ complexes as well as for the homoleptic and heteroleptic silver [1:2]+ complexes in the gas phase. This method is very useful in rapid screening of the stabilities of new complexes in the gas phase. The influence of the spatial arrangement of the ligands and the type of substituents employed for the complexation were examined. The effect of the preorganization of the diazaperylene on the threshold activation voltages and thus of the relative binding energies of the different complexes are discussed. Density functional theory calculations were used to calculate the optimized structures of the silver complexes and compared with the stabilities of the complexes in the gas phase for the first time.
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Affiliation(s)
- Ines Starke
- Chemisches Institut, Universität Potsdam, K.-Liebknechtstr. 24-25, 14476, Potsdam, Germany
| | - Andreas Koch
- Chemisches Institut, Universität Potsdam, K.-Liebknechtstr. 24-25, 14476, Potsdam, Germany
| | - Stefan Kammer
- Chemisches Institut, Universität Potsdam, K.-Liebknechtstr. 24-25, 14476, Potsdam, Germany
| | - Hans-Jürgen Holdt
- Chemisches Institut, Universität Potsdam, K.-Liebknechtstr. 24-25, 14476, Potsdam, Germany
| | - Heiko Michael Möller
- Chemisches Institut, Universität Potsdam, K.-Liebknechtstr. 24-25, 14476, Potsdam, Germany
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Hierlinger C, Flint HV, Cordes DB, Slawin AM, Gibson EA, Jacquemin D, Guerchais V, Zysman-Colman E. A panchromatic, near infrared Ir(III) emitter bearing a tripodal C^N^C ligand as a dye for dye-sensitized solar cells. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Orwat B, Witkowska E, Kownacki I, Oh MJ, Hoffmann M, Kubicki M, Grzelak I, Marciniec B, Glowacki I, Luszczynska B, Wiosna-Salyga G, Ulanski J, Ledwon P, Lapkowski M. Microwave-assisted one-pot synthesis of new ionic iridium complexes of [Ir(bzq) 2(N^N)] +A - type and their selected electroluminescent properties. Dalton Trans 2017; 46:9210-9226. [PMID: 28678255 DOI: 10.1039/c7dt01372h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Iridium C,N-cyclometalated complexes with an ionic structure are considered to be promising candidates for application in host/guest solid-state phosphorescent single-layer devices because the employment of such dopants offers the possibility of reducing their concentration in organic matrices as well as allows obtaining organic light emitting devices (OLEDs) with interesting emission parameters. We report herein a methodology enabling the synthesis of cyclometalated ionic iridium(iii) complexes of the type [Ir(C^N)2(N^N)]+A- according to a three-component one-pot strategy involving the acceleration of the reaction via microwave irradiation. The developed protocol allowed efficient synthesis of a series of new cationic iridium(iii) coordination derivatives, which were isolated and spectroscopically characterized, while the structures of two of them were determined by the X-ray method. Moreover, the iridium(iii) derivatives were subjected to the cyclic voltammetry studies in order to determine the energies of the HOMO and LUMO levels as well as to estimate their electrochemical properties and to predict some electronic properties. Additionally, the ONIOM calculation scheme that was used to predict HOMO-LUMO gaps for the studied Ir(iii) complexes showed a good correlation between the experimental and calculated values. In order to determine the influence of the structure and nature of the ancillary ligand on the location of the maximum emission band, the photophysical properties of the synthesized iridium complexes were characterized. Finally, the selected compounds were used as emitters for the construction of polymer light emitting diodes (PLEDs) based on a poly(N-vinylcarbazole)/2-(4-tert-butylphenyl)-5-(4-biphenyl)-1,3,4-oxadiazole (PVK/PBD) matrix. The highest luminance, above 10 000 cd m-2, was recorded for the device containing only 1.0 wt% of [Ir(bzq)2(1,10-phenanthroline)]+PF6- in the PVK/PBD. The fabricated PLEDs exhibit current efficiency in the range of 1.0 to 2.2 cd A-1.
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Affiliation(s)
- B Orwat
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, St. Umultowska 89b, 61-614 Poznan, Poland.
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Zhang L, Zhang XB, Zhang DD, He SG. Theoretical prediction of the synthesis of 2,3-dihydropyridines through Ir( iii)-catalysed reaction of unsaturated oximes with alkenes. RSC Adv 2017. [DOI: 10.1039/c6ra25501a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Ir(iii)-catalysed reaction of unsaturated oximes with alkenes was predicted, and the results indicate a more efficient synthesis of 2,3-dihydropyridines.
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Affiliation(s)
- Lei Zhang
- School of Materials Science and Engineering
- Anhui University of Science and Technology
- Huainan 232001
- People's Republic of China
| | - Xiang-Biao Zhang
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan 232001
- People's Republic of China
| | - Dan-Dan Zhang
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan 232001
- People's Republic of China
| | - Sheng-Gui He
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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9
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Li GN, Gao CW, Xie H, Chen HH, Liu D, Sun W, Chen GY, Niu ZG. New luminescent cyclometalated iridium(III) complexes containing fluorinated phenylisoquinoline-based ligands: Synthesis, structures, photophysical properties and DFT calculations. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Markiewicz JT, Wudl F. Perylene, Oligorylenes, and Aza-Analogs. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28063-85. [PMID: 26465638 DOI: 10.1021/acsami.5b02243] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
An in-depth discussion of the properties of perylene is presented. Tuning the properties of perylene by introducing nitrogens is also explored. Finally, we do not discuss the synthesis and properties of oligorylenes functionalized with dicarboxyimide bonds.
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Affiliation(s)
- John T Markiewicz
- Materials Research Lab, California NanoSystems Institute, University of California at Santa Barbara , Santa Barbara, California 93106-9510, United States
| | - Fred Wudl
- Materials Research Lab, California NanoSystems Institute, University of California at Santa Barbara , Santa Barbara, California 93106-9510, United States
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11
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Attenberger B, El Sayed Moussa M, Brietzke T, Vreshch V, Holdt HJ, Lescop C, Scheer M. Discrete Polymetallic Arrangements of AgIand CuIIons Based on Multiple Bridging Phosphane Ligands and π-π Interactions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500445] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Howarth AJ, Patia R, Davies DL, Lelj F, Wolf MO, Singh K. Elucidating the Origin of Enhanced Phosphorescence Emission in the Solid State (EPESS) in Cyclometallated Iridium Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402495] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Four new cyclometalated phenylisoquinoline-based Ir(III) complexes: Syntheses, structures, properties and DFT calculations. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.02.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Edkins RM, Fucke K, Peach MJG, Crawford AG, Marder TB, Beeby A. Syntheses, Structures, and Comparison of the Photophysical Properties of Cyclometalated Iridium Complexes Containing the Isomeric 1- and 2-(2′-pyridyl)pyrene Ligands. Inorg Chem 2013; 52:9842-60. [DOI: 10.1021/ic400819f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Robert M. Edkins
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United
Kingdom
| | - Katharina Fucke
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United
Kingdom
| | - Michael J. G. Peach
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United
Kingdom
- Department of Chemistry,
Faraday
Building, Lancaster University, Lancaster
LA1 4YB, United Kingdom
| | - Andrew G. Crawford
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United
Kingdom
| | - Todd B. Marder
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United
Kingdom
| | - Andrew Beeby
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United
Kingdom
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Affiliation(s)
- Kamrul Hasan
- Département de Chimie, Université de Sherbrooke, 2500
Boul de l’Université, Sherbrooke, Quebec, Canada J1K
2R1
| | - Eli Zysman-Colman
- Département de Chimie, Université de Sherbrooke, 2500
Boul de l’Université, Sherbrooke, Quebec, Canada J1K
2R1
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