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Prock J, Strabler C, Viertl W, Kopacka H, Obendorf D, Müller T, Tordin E, Salzl S, Knör G, Mauro M, De Cola L, Brüggeller P. Unusual stability of dyads during photochemical hydrogen production. Dalton Trans 2015; 44:20936-48. [DOI: 10.1039/c5dt03414k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Heterodimetallic dyads containing Os and Pd are connected by a bis(bidentate) phosphine and show an excellent stability for the water splitting application.
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Eller S, Trettenbrein B, Fessler M, Haringer S, Ruggenthaler M, Gutmann R, van der Veer WE, Kopacka H, Müller T, Obendorf D, Brüggeller P. Surprising photochemical reactivity and visible light-driven energy transfer in heterodimetallic complexes. Dalton Trans 2011; 40:3815-29. [PMID: 21127819 DOI: 10.1039/c0dt00253d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The bis(bidentate) phosphine cis,trans,cis-1,2,3,4-tetrakis(diphenylphosphino)cyclobutane (dppcb) has been used for the synthesis of a series of novel heterodimetallic complexes starting from [Ru(bpy)(2)(dppcb)]X(2) (1; X = PF(6), SbF(6)), so-called dyads, showing surprising photochemical reactivity. They consist of [Ru(bpy)(2)](2+)"antenna" sites absorbing light combined with reactive square-planar metal centres. Thus, irradiating [Ru(bpy)(2)(dppcb)MCl(2)]X(2) (M = Pt, 2; Pd, 3; X = PF(6), SbF(6)) dissolved in CH(3)CN with visible light, produces the unique heterodimetallic compounds [Ru(bpy)(CH(3)CN)(2)(dppcb)MCl(2)]X(2) (M = Pt, 7; Pd, 8; X = PF(6), SbF(6)). In an analogous reaction the separable diastereoisomers (ΔΛ/ΛΔ)- and (ΔΔ/ΛΛ)-[Ru(bpy)(2)(dppcb)Os(bpy)(2)](PF(6))(4) (5/6) lead to [Ru(bpy)(CH(3)CN)(2)(dppcb)Os(bpy)(2)](PF(6))(4) (9), where only the RuP(2)N(4) moiety of 5/6 is photochemically reactive. By contrast, in the case of [Ru(bpy)(2)(dppcb)NiCl(2)]X(2) (4; X = PF(6), SbF(6)) no clean photoreaction is observed. Interestingly, this difference in photochemical behaviour is completely in line with the related photophysical parameters, where 2, 3, and 5/6, but not 4, show long-lived excited states at ambient temperature necessary for this type of photoreaction. Furthermore, the photochemical as well as the photophysical properties of 2-4 are also in accordance with their single crystal X-ray structures presented in this work. It seems likely that differences in "steric pressure" play a major role for these properties. The unique complexes 7-9 are also fully characterized by single-crystal X-ray structure analyses, clearly showing that the stretching vibration modes of the ligand CH(3)CN, present only in 7-9, cannot be directly influenced by "steric pressure". This has dramatic consequences for their photophysical parameters. The trans-[Ru(bpy)(CH(3)CN)(2)](2+) chromophore of 9 acts as efficient "antenna" for visible light-driven energy transfer to the Os-centred "trap" site, resulting in k(en) ≥ 2 × 10(9) s(-1) for the energy transfer. Since electron transfer is made possible by the use of this intervening energy transfer, in dyads like 2-4 highly reactive M(0) species (M = Pt, Pd, Ni) could be generated. These species are not stable in water and M(II) hydride intermediates are usually formed, further reacting with H(+) to give H(2). Thus, derivatives of 3, namely [M(bpy)(2)(dppcb)Pd(bpy)](PF(6))(4) (M = Os, Ru) dissolved in 1:1 (v/v) H(2)O-CH(3)CN produce H(2) during photolysis with visible light.
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Affiliation(s)
- Sylvia Eller
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 52a, 6020, Innsbruck, Austria
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Girotti R, Romerosa A, Mañas S, Serrano-Ruiz M, Perutz R. Photo-aquation of cis-[RuCl2(mPTA)4](CF3SO3)4in water (mPTA = N-methyl-1,3,5-triaza-7-phosphaadamantane). Dalton Trans 2011; 40:828-36. [DOI: 10.1039/c0dt00885k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Girotti R, Romerosa A, Mañas S, Serrano-Ruiz M, Perutz RN. Visible-Light Photoisomerization and Photoaquation of trans-[Ru(1,3,5-triaza-7-phosphaadamantane)4Cl2] in Organic Solvent and Water. Inorg Chem 2009; 48:3692-8. [DOI: 10.1021/ic802284j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Rugiada Girotti
- Área de Química Inorgánica, Facultad de Cien-16.50cias, Universidad de Almería, Almería, Almería, 04120, Spain, Organometallic and Photochemistry Laboratory for Sustainable Chemistry, C.I.E.S.O.L., Almería, 04120, Spain, and Department of Chemistry, University of York, Heslington York YO10 5DD, U.K
| | - Antonio Romerosa
- Área de Química Inorgánica, Facultad de Cien-16.50cias, Universidad de Almería, Almería, Almería, 04120, Spain, Organometallic and Photochemistry Laboratory for Sustainable Chemistry, C.I.E.S.O.L., Almería, 04120, Spain, and Department of Chemistry, University of York, Heslington York YO10 5DD, U.K
| | - Sonia Mañas
- Área de Química Inorgánica, Facultad de Cien-16.50cias, Universidad de Almería, Almería, Almería, 04120, Spain, Organometallic and Photochemistry Laboratory for Sustainable Chemistry, C.I.E.S.O.L., Almería, 04120, Spain, and Department of Chemistry, University of York, Heslington York YO10 5DD, U.K
| | - Manuel Serrano-Ruiz
- Área de Química Inorgánica, Facultad de Cien-16.50cias, Universidad de Almería, Almería, Almería, 04120, Spain, Organometallic and Photochemistry Laboratory for Sustainable Chemistry, C.I.E.S.O.L., Almería, 04120, Spain, and Department of Chemistry, University of York, Heslington York YO10 5DD, U.K
| | - Robin N. Perutz
- Área de Química Inorgánica, Facultad de Cien-16.50cias, Universidad de Almería, Almería, Almería, 04120, Spain, Organometallic and Photochemistry Laboratory for Sustainable Chemistry, C.I.E.S.O.L., Almería, 04120, Spain, and Department of Chemistry, University of York, Heslington York YO10 5DD, U.K
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Dixon IM, Lebon E, Sutra P, Igau A. Luminescent ruthenium-polypyridine complexes & phosphorus ligands: anything but a simple story. Chem Soc Rev 2009; 38:1621-34. [PMID: 19587957 DOI: 10.1039/b804763b] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This tutorial review presents an exhaustive picture of the luminescence studies that have been undertaken on ruthenium(ii) complexes bearing polypyridine and phosphorus(iii) ligands. The introduction of phosphorus to the Ru coordination sphere has multiple consequences on the nature and energy of the various excited states involved, but it does not necessarily rule out room temperature emission.
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Affiliation(s)
- Isabelle M Dixon
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France.
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Fessler M, Eller S, Bachmann C, Gutmann R, Trettenbrein B, Kopacka H, Mueller T, Brueggeller P. Regio- and chemoselective oxidation of the bis(bidentate) phosphine cis,trans,cis-1,2,3,4-tetrakis(diphenylphosphino)cyclobutane via cobalt(II) mediated dioxygen activation. Dalton Trans 2009:1383-95. [DOI: 10.1039/b813720j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Switching on the photochemical reactivity in heterodimetallic OsII–RuII bipyridyl complexes containing a bis(bidentate) phosphine. INORG CHEM COMMUN 2007. [DOI: 10.1016/j.inoche.2007.09.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Albertin G, Antoniutti S, Castro J, García-Fontán S, Noé M. Preparation of stannyl complexes of ruthenium and osmium stabilised by polypyridine and phosphite ligands. Dalton Trans 2007:5441-52. [DOI: 10.1039/b707736j] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Krishna H, Krishnamurthy SS, Nethaji M. An unexpected entry into the silver(I) chemistry of diphosphazane ligands: Crystal and molecular structures of [Ag{Ph2PN(Pri)PPh2}(CF3SO3)]2, [Ag{Ph2PN(Pri)PPh(OC6H3Me2-2,6)}2]PF6, and [Ag3(μ-Cl)2{Ph2PN(R)PPh2}3]PF6 (R=H, Pri). Polyhedron 2006. [DOI: 10.1016/j.poly.2006.05.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gutmann R, Czermak G, Dumfort A, van der Veer WE, Hong B, Kopacka H, Ongania KH, Bechtold T, Brüggeller P. Unprecedented conformational modulation of the efficiency of luminescence in Ru(II) bipyridyl complexes containing a bis(bidentate) phosphine. INORG CHEM COMMUN 2005. [DOI: 10.1016/j.inoche.2005.01.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chen JL, Zhang LY, Chen ZN, Gao LB, Abe M, Sasaki Y. Syntheses, Structures, and Redox Properties of Dimeric Triruthenium Clusters Bridged by Bis(diphenylphosphino)acetylene and -ethylene. Inorg Chem 2004; 43:1481-90. [PMID: 14966986 DOI: 10.1021/ic0344968] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reactions of oxo-centered triruthenium acetate complexes [Ru3O(OAc)6(py)2(CH3OH)](PF6) (py = pyridine, OAc = CH3COO-) (1) with nearly equimolar amounts of dppa [bis(diphenylphosphino)acetylene] or dppen [trans-1,2-bis(diphenylphosphino)ethylene] gave [Ru3O(OAc)6(py)2(L)](PF6) (L = dppa, 2; dppen, 3). With 2.4 equiv of 1, the reactions provided diphosphine-linked triruthenium dimers, [[Ru3O(OAc)6(py)2]2(L)](PF6)2 (L = dppa, 4; L = dppen, 5), respectively. Similarly, the reactions of [Ru3O(OAc)6(L')2(MeOH)]+ [L' = dmap (4-(dimethylamino)pyridine), 1a; L' = abco (1-azabicyclo[2.2.2]octane), 1b] with dppen gave dppen-linked dimers, [[Ru3O(OAc)6(dmap)2]2(dppen)](SbF6)2 (6) and [[Ru3O(OAc)6(abco)2]2(dppen)](BF4)2 (7), respectively. The chemical reduction of 2, 4, and 5 by hydrazine afforded one- or two-electron-reduced, neutral products, Ru3O(OAc)6(py)2(dppa) (2a), [Ru3O(OAc)6(py)2]2(dppa) (4a), and [Ru3O(OAc)6(py)2]2(dppen) (5a), respectively. The complexes were characterized by elemental analyses, ES-MS, UV-vis, IR, and 31P NMR spectroscopies, and cyclic and differential-pulse voltammetries. The molecular structures of compounds 2, 4, 5, 5a, 6, and 7 were determined by single-crystal X-ray diffraction. In 0.1 M (Bu4N)PF6-acetone, the monomers and dimers of triruthenium clusters show reversible and multistep redox responses. The two triruthenium cluster centers in dimers undergo stepwise reductions and oxidations due to the identical redox processes of the individual Ru3O cluster cores, suggesting the presence of electronic communications between them through the conjugated diphosphine spacer. The redox wave splitting mediated by dppa containing an ethynyl group (C triple bond C) is found to be more extensive than that by dppen containing an ethenyl (C=C) one. It appears that the redox wave splitting is enhanced by the introduction of electron-donating substituents on the auxiliary pyridine rings.
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Affiliation(s)
- Jing-Lin Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter and Graduate School of the Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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Stampfl T, Gutmann R, Czermak G, Langes C, Dumfort A, Kopacka H, Ongania KH, Brüggeller P. Regioselective versus complete chalcogen transfer reactions of the bis(bidentate) phosphine cis,trans,cis-1,2,3,4-tetrakis(diphenylphosphino)cyclobutane: full characterization of new, hemilabile ligands and their complexes with palladium(ii) and platinum(ii). Dalton Trans 2003. [DOI: 10.1039/b305775e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bickley JF, La Pensée AA, Higgins SJ, Stuart CA. Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes. Dalton Trans 2003. [DOI: 10.1039/b306552a] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Stampfl T, Czermak G, Gutmann R, Langes C, Kopacka H, Ongania KH, Brüggeller P. First regioselective protonation or selenization of a bis(bidentate) phosphine: synthesis and characterization of cis,trans,cis-1,3-bis(diphenylphosphonium)-PH,P′H′-2,4-bis(diphenylphosphino)cyclobutane-diiodide and cis,trans,cis-1,3-bis(diphenylphosphinoselenoyl)-2,4-bis(diphenylphosphino)cyclobutane. INORG CHEM COMMUN 2002. [DOI: 10.1016/s1387-7003(02)00448-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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