51
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Synthesis, structural and magnetic characterizations of new complexes of di-2,6-(2-pyridylcarbonyl)pyridine (pyCOpyCOpy) ligand. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.05.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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52
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Breivogel A, Meister M, Förster C, Laquai F, Heinze K. Excited state tuning of bis(tridentate) ruthenium(II) polypyridine chromophores by push-pull effects and bite angle optimization: a comprehensive experimental and theoretical study. Chemistry 2013; 19:13745-60. [PMID: 24000040 DOI: 10.1002/chem.201302231] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Indexed: 01/22/2023]
Abstract
The synergy of push-pull substitution and enlarged ligand bite angles has been used in functionalized heteroleptic bis(tridentate) polypyridine complexes of ruthenium(II) to shift the (1) MLCT absorption and the (3) MLCT emission to lower energy, enhance the emission quantum yield, and to prolong the (3) MLCT excited-state lifetime. In these complexes, that is, [Ru(ddpd)(EtOOC-tpy)][PF6 ]2 , [Ru(ddpd-NH2 )(EtOOC-tpy)][PF6 ]2 , [Ru(ddpd){(MeOOC)3 -tpy}][PF6 ]2 , and [Ru(ddpd-NH2 ){(EtOOC)3 -tpy}][PF6 ]2 the combination of the electron-accepting 2,2';6',2''-terpyridine (tpy) ligand equipped with one or three COOR substituents with the electron-donating N,N'-dimethyl-N,N'-dipyridin-2-ylpyridine-2,6-diamine (ddpd) ligand decorated with none or one NH2 group enforces spatially separated and orthogonal frontier orbitals with a small HOMO-LUMO gap resulting in low-energy (1) MLCT and (3) MLCT states. The extended bite angle of the ddpd ligand increases the ligand field splitting and pushes the deactivating (3) MC state to higher energy. The properties of the new isomerically pure mixed ligand complexes have been studied by using electrochemistry, UV/Vis absorption spectroscopy, static and time-resolved luminescence spectroscopy, and transient absorption spectroscopy. The experimental data were rationalized by using density functional calculations on differently charged species (charge n=0-4) and on triplet excited states ((3) MLCT and (3) MC) as well as by time-dependent density functional calculations (excited singlet states).
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Affiliation(s)
- Aaron Breivogel
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, 55128 Mainz (Germany), Fax: (+49) 6131-39-27-277
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53
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Wächtler M, Maiuri M, Brida D, Popp J, Rau S, Cerullo G, Dietzek B. Utilizing Ancillary Ligands to Optimize the Photophysical Properties of 4H-Imidazole Ruthenium Dyes. Chemphyschem 2013; 14:2973-83. [DOI: 10.1002/cphc.201300383] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Indexed: 11/09/2022]
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54
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Friebe C, Görls H, Jäger M, Schubert US. Linear Metallopolymers from Ruthenium(II)-2,6-di(quinolin-8-yl)pyridine Complexes by Electropolymerization - Formation of Redox-Stable and Emissive Films. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300359] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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55
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Dietrich J, Wünsche von Leupoldt A, Grabolle M, Resch-Genger U, Heinze K. Thermal and Photoinduced Electron Transfer in Directional Bis(terpyridine)ruthenium(II)-(Bipyridine)platinum(II) Complexes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201531] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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56
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Parada GA, Fredin LA, Santoni MP, Jäger M, Lomoth R, Hammarström L, Johansson O, Persson P, Ott S. Tuning the Electronics of Bis(tridentate)ruthenium(II) Complexes with Long-Lived Excited States: Modifications to the Ligand Skeleton beyond Classical Electron Donor or Electron Withdrawing Group Decorations. Inorg Chem 2013; 52:5128-37. [DOI: 10.1021/ic400009m] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Giovanny A. Parada
- Ångström
Laboratory,
Department of Chemistry, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Lisa A. Fredin
- Chemistry Department, Theoretical
Chemistry Division, Lund University, Box
124, SE-22100 Lund, Sweden
| | - Marie-Pierre Santoni
- Ångström
Laboratory,
Department of Chemistry, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Michael Jäger
- Laboratory of Organic and Macromolecular
Chemistry, Friedrich-Schiller-Universität Jena, Humboldtstr. 10, D-07743 Jena, Germany
| | - Reiner Lomoth
- Ångström
Laboratory,
Department of Chemistry, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Leif Hammarström
- Ångström
Laboratory,
Department of Chemistry, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Olof Johansson
- Ångström
Laboratory,
Department of Chemistry, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
| | - Petter Persson
- Chemistry Department, Theoretical
Chemistry Division, Lund University, Box
124, SE-22100 Lund, Sweden
| | - Sascha Ott
- Ångström
Laboratory,
Department of Chemistry, Uppsala University, Box 523, SE-75120 Uppsala, Sweden
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57
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Dietrich J, Thorenz U, Förster C, Heinze K. Effects of Sequence, Connectivity, and Counter Ions in New Amide-Linked Ru(tpy)2–Re(bpy) Chromophores on Redox Chemistry and Photophysics. Inorg Chem 2013; 52:1248-64. [DOI: 10.1021/ic301632y] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jan Dietrich
- Institute of Inorganic Chemistry
and Analytical Chemistry, Johannes Gutenberg—University of
Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Ute Thorenz
- Institute of Inorganic Chemistry
and Analytical Chemistry, Johannes Gutenberg—University of
Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Christoph Förster
- Institute of Inorganic Chemistry
and Analytical Chemistry, Johannes Gutenberg—University of
Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Katja Heinze
- Institute of Inorganic Chemistry
and Analytical Chemistry, Johannes Gutenberg—University of
Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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58
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Brown DG, Sanguantrakun N, Schulze B, Schubert US, Berlinguette CP. Bis(tridentate) Ruthenium–Terpyridine Complexes Featuring Microsecond Excited-State Lifetimes. J Am Chem Soc 2012; 134:12354-7. [DOI: 10.1021/ja3039536] [Citation(s) in RCA: 177] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Douglas G. Brown
- Department of Chemistry, Centre
for Advanced Solar Materials, and Institute Sustainable Energy, Environment
and Economy, University of Calgary, 2500
University Drive N.W., Calgary, Canada, T2N-1N4
| | - Nawaporn Sanguantrakun
- Department of Chemistry, Centre
for Advanced Solar Materials, and Institute Sustainable Energy, Environment
and Economy, University of Calgary, 2500
University Drive N.W., Calgary, Canada, T2N-1N4
| | - Benjamin Schulze
- Laboratory of Organic and Macromolecular
Chemistry (IOMC) and Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Humboldtstr. 10,
07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular
Chemistry (IOMC) and Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Humboldtstr. 10,
07743 Jena, Germany
| | - Curtis P. Berlinguette
- Department of Chemistry, Centre
for Advanced Solar Materials, and Institute Sustainable Energy, Environment
and Economy, University of Calgary, 2500
University Drive N.W., Calgary, Canada, T2N-1N4
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59
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Siebert R, Winter A, Schmitt M, Popp J, Schubert US, Dietzek B. Light-Induced Dynamics in Conjugated Bis(terpyridine) Ligands - A Case Study Toward Photoactive Coordination Polymers. Macromol Rapid Commun 2012; 33:481-97. [DOI: 10.1002/marc.201100753] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 01/02/2012] [Indexed: 12/25/2022]
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60
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Österman T, Abrahamsson M, Becker HC, Hammarström L, Persson P. Influence of Triplet State Multidimensionality on Excited State Lifetimes of Bis-tridentate RuII Complexes: A Computational Study. J Phys Chem A 2012; 116:1041-50. [DOI: 10.1021/jp207044a] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tomas Österman
- Chemistry Department, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Maria Abrahamsson
- Physical Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden
| | - Hans-Christian Becker
- Physical Chemistry, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden
| | - Leif Hammarström
- Chemical Physics, Department of Photochemistry and Molecular Science, Uppsala University, Box 532, SE-75120 Uppsala, Sweden
| | - Petter Persson
- Chemistry Department, Lund University, Box 124, SE-22100 Lund, Sweden
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61
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Mandal S, Seth DK, Gupta P. Encapsulating ruthenium and osmium with tris(2-aminoethyl)amine based tripodal ligands. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.09.010] [Citation(s) in RCA: 18] [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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62
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Schulze B, Escudero D, Friebe C, Siebert R, Görls H, Köhn U, Altuntas E, Baumgaertel A, Hager MD, Winter A, Dietzek B, Popp J, González L, Schubert US. A Heteroleptic Bis(tridentate) Ruthenium(II) Complex of a Click-Derived Abnormal Carbene Pincer Ligand with Potential for Photosensitzer Application. Chemistry 2011; 17:5494-8. [DOI: 10.1002/chem.201100045] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Indexed: 11/05/2022]
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63
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Dinda J, Liatard S, Chauvin J, Jouvenot D, Loiseau F. Electronic and geometrical manipulation of the excited state of bis-terdentate homo- and heteroleptic ruthenium complexes. Dalton Trans 2011; 40:3683-8. [DOI: 10.1039/c0dt01197e] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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64
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Lin CH, Chi Y, Chung MW, Chen YJ, Wang KW, Lee GH, Chou PT, Hung WY, Chiu HC. Heteroleptic Ir(III) complexes containing both azolate chromophoric chelate and diphenylphosphinoaryl cyclometalates; reactivities, electronic properties and applications. Dalton Trans 2010; 40:1132-43. [PMID: 21170461 DOI: 10.1039/c0dt00966k] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a new family of octahedral Ir(III) complexes with dual cyclometalating phosphine chelates, namely: 1-(diphenylphosphino)naphthalene (dpnaH) and isoquinoline (dppiH), is reported. Two series of intermediate complexes, [Ir(dpna)(tht)(2)Cl(2)] (1), [Ir(dpna)(2)(OAc)] (2), [Ir(dppiH)(dppi)Cl(2)] (3) and [Ir(dppi)(2)(OAc)] (4), which can be classified by the coexistence of either a pair of cis-chlorides or a single acetate chelate, were obtained from treatment of phosphine with [IrCl(3)(tht)(3)] (tht = tetrahydrothiophene). The in situ generated acetate complexes 2 and 4 could react with azolate chelates, namely: 5-(2-pyridyl)-3-trifluoromethyl pyrazole (fppzH) and 5-(1-isoquinolyl)-3-tert-butyl-1,2,4-triazole (iqbtzH), to afford a new series of luminescent complexes [Ir(dpna)(2)(fppz)] (5a and 5b), [Ir(dpna)(2)(iqbtz)] (6a and 6b), [Ir(dppi)(2)(fppz)] (7a) and [Ir(dppi)(2)(iqbtz)] (8a). The phosphorescence lifetime (τ(obs)) fell in the range of a few tens of μs, showing possession of excessive ligand-centered ππ* mixed in part with MLCT character. A density functional theory (DFT) study was also conducted in order to shed light on the origin of the transitions in the absorption and emission spectra and to predict emission energies for these complexes. Organic light emitting diodes (OLEDs) displaying bright orange emission and with maximum η(ext) up to 17.1% were fabricated employing complexes 6a and 8a as the phosphorescent dopants.
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Affiliation(s)
- Chen-Huey Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
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65
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Friese V, Nag S, Wang J, Santoni MP, Rodrigue-Witchel A, Hanan GS, Schaper F. Red Phosphorescence in RuII Complexes of a Tridentate N-Heterocyclic Carbene Ligand Incorporating Tetrahydropyrimidine. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000823] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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66
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Expanded bite angles in tridentate ligands. Improving the photophysical properties in bistridentate RuII polypyridine complexes. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.01.006] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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67
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Chen JL, Chi Y, Chen K, Cheng YM, Chung MW, Yu YC, Lee GH, Chou PT, Shu CF. New series of ruthenium(II) and osmium(II) complexes showing solid-state phosphorescence in far-visible and near-infrared. Inorg Chem 2010; 49:823-32. [PMID: 20030393 DOI: 10.1021/ic900586e] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new Ru(II) complex, [Ru(fpbpymH)(2)]Cl(2) (1), in which fpbpymH = [5-(trifluoromethyl)pyrazol-3-yl](2,2'-bipyrid-6-yl)methane, was prepared by the treatment of [Ru(DMSO)(4)Cl(2)] with 2 equiv of the terdentate chelate fpbpymH in refluxing ethanol. A single-crystal X-ray diffraction study of 1 revealed a distorted octahedral Ru(II) framework, showing strong N-H...Cl hydrogen bonding between the fpbpymH ligand and Cl anions. In the presence of Na(2)CO(3), the methylene linkers of chelates in 1 underwent stepwise oxygenation, forming the charge-neutral complexes [Ru(fpbpym)(fpbpyk)] (2) and [Ru(fpbpyk)(2)] (3) [fpbpykH = [5-(trifluoromethyl)pyrazol-3-yl](2,2'-bipyrid-6-yl) ketone] in sequence. The respective charge-neutral Os(II) complex [Os(fpbpyk)(2)] (4) was also isolated by the treatment of OsCl(3).3H(2)O with 2 equiv of the terdentate chelate fpbpymH. Electrochemical analysis indicated that the introduction of the electron-withdrawing ketone group in 2-4 increased the metal-based oxidation potential in sequence. For the photophysical properties, complexes 1-4 are essentially nonluminescent in solution (e.g., CH(2)Cl(2) or MeOH) at room temperature, but all exhibit 600-1100 nm phosphorescence with moderate intensity for the powdery, solid sample at room temperature. The trend in terms of the emission peak wavelength of 1 (666 nm) < 3 (795 nm) < 2 (810 nm) < 4 (994 nm) among titled complexes is in agreement with the corresponding onset of absorption spectra as well as the time-dependent density functional theory calculation of 1 < 3 < 2 < 4.
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Affiliation(s)
- Jing-Lin Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
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68
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69
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Badaeva E, Albert VV, Kilina S, Koposov A, Sykora M, Tretiak S. Effect of deprotonation on absorption and emission spectra of Ru(ii)-bpy complexes functionalized with carboxyl groups. Phys Chem Chem Phys 2010; 12:8902-13. [DOI: 10.1039/b924910a] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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70
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Dixon IM, Alary F, Heully JL. Electronic peculiarities of the excited states of [RuN5C]+vs. [RuN6]2+ polypyridine complexes: insight from theory. Dalton Trans 2010; 39:10959-66. [DOI: 10.1039/c0dt00563k] [Citation(s) in RCA: 24] [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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