101
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Kim S, Lee J, Jin G, Jo MH, Lee C, Ryu S. Crossover between Photochemical and Photothermal Oxidations of Atomically Thin Magnetic Semiconductor CrPS 4. NANO LETTERS 2019; 19:4043-4051. [PMID: 31074998 DOI: 10.1021/acs.nanolett.9b01417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Many two-dimensional (2D) semiconductors represented by transition metal dichalcogenides have tunable optical bandgaps in the visible or near IR-range standing as a promising candidate for optoelectronic devices. Despite this potential, however, their photoreactions are not well understood or controversial in the mechanistic details. In this work, we report a unique thickness-dependent photoreaction sensitivity and a switchover between two competing reaction mechanisms in atomically thin chromium thiophosphate (CrPS4), a two-dimensional antiferromagnetic semiconductor. CrPS4 showed a threshold power density 2 orders of magnitude smaller than that for MoS2 obeying a photothermal reaction route. In addition, reaction cross section quantified with Raman spectroscopy revealed distinctive power dependences in the low and high power regimes. On the basis of optical in situ thermometric measurements and control experiments against O2, water, and photon energy, we proposed a photochemical oxidation mechanism involving singlet O2 in the low power regime with a photothermal route for the other. We also demonstrated a highly effective encapsulation with Al2O3 as a protection against the destructive photoinduced and ambient oxidations.
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Affiliation(s)
- Suhyeon Kim
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
| | - Jinhwan Lee
- School of Mechanical Engineering , Sungkyunkwan University , Suwon 16419 , Korea
| | - Gangtae Jin
- Center for Artificial Low Dimensional Electronic Systems , Institute for Basic Science (IBS) , Pohang 37673 , Korea
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
| | - Moon-Ho Jo
- Center for Artificial Low Dimensional Electronic Systems , Institute for Basic Science (IBS) , Pohang 37673 , Korea
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
- Division of Advanced Materials Science , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
| | - Changgu Lee
- School of Mechanical Engineering , Sungkyunkwan University , Suwon 16419 , Korea
- SKKU Advanced Institute of Nanotechnology (SAINT) , Sungkyunkwan University , Suwon 16419 , Korea
| | - Sunmin Ryu
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
- Center for Artificial Low Dimensional Electronic Systems , Institute for Basic Science (IBS) , Pohang 37673 , Korea
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102
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Shamsieva AV, Musina EI, Gerasimova TP, Fayzullin RR, Kolesnikov IE, Samigullina AI, Katsyuba SA, Karasik AA, Sinyashin OG. Intriguing Near-Infrared Solid-State Luminescence of Binuclear Silver(I) Complexes Based on Pyridylphospholane Scaffolds. Inorg Chem 2019; 58:7698-7704. [DOI: 10.1021/acs.inorgchem.8b03474] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Aliia V. Shamsieva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Elvira I. Musina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Tatiana P. Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Ilya E. Kolesnikov
- Center for Optical and Laser Materials Research, Research Park of St. Petersburg State University, Ulianovskaya Street 5, 198504 St. Petersburg, Russian Federation
| | - Aida I. Samigullina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Sergey A. Katsyuba
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Andrey A. Karasik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
| | - Oleg G. Sinyashin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Street 8, 420088 Kazan, Russian Federation
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103
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Lenz S, Bamberger H, Hallmen PP, Thiebes Y, Otto S, Heinze K, van Slageren J. Chromium(iii)-based potential molecular quantum bits with long coherence times. Phys Chem Chem Phys 2019; 21:6976-6983. [PMID: 30869710 DOI: 10.1039/c9cp00745h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular quantum bits based on copper(ii) or vanadium(iv) have been shown to possess long coherence times on multiple occasions. In contrast, studies in which non-spin-½ ions are employed are relatively scarce. High-spin ions provide additional states that can be used to encode further quantum bits. Furthermore, an optical rather than a microwave readout of molecular quantum bits is highly desirable, because in principle it could allow addressing at the single quantum bit level. The chromium(iii) complex [Cr(ddpd)2]3+ (ddpd = N,N'-dimethyl-N,N'-dipyridine-2-yl-pyridine-2,6-diamine) combines both the large spin (S = 3/2) and optical activity (strong, long lived luminescence). Here we demonstrate that the compound possesses coherence times of up to 8.4(1) μs, which are much longer (at least three times) than those for other chromium(iii)-based compounds. On the other hand, it is proved to be impossible to read out or influence the quantum state by optical means, underlining that further work is needed in this direction.
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Affiliation(s)
- Samuel Lenz
- Institute of Physical Chemistry and Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
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104
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Zhang Y, Akhmedov NG, Petersen JL, Milsmann C. Photoluminescence of Seven-Coordinate Zirconium and Hafnium Complexes with 2,2'-Pyridylpyrrolide Ligands. Chemistry 2019; 25:3042-3052. [PMID: 30620447 DOI: 10.1002/chem.201804671] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/21/2018] [Indexed: 11/09/2022]
Abstract
Luminescent seven-coordinated zirconium and hafnium complexes bearing three mono-anionic 2,2'-pyridylpyrrolide ligands and one chloride were synthesized. Solid-state structures and the dynamic behaviors in solution were probed by X-ray crystallography and variable temperature 1 H NMR experiments, respectively. Absorption spectroscopy and time-dependent density functional theory (TD-DFT) calculations supported a hybrid of ligand-to-metal charge transfer (LMCT)/ligand-to-ligand charge transfer (LLCT) for the visible light absorption band. The complexes (Me PMPMe )3 MCl (M=Zr, Hf, Me PMPMe =3,5-dimethyl-2-(2-pyridyl)pyrrolide) are emissive in solution at room temperature upon irradiation with visible light due to a combination of phosphorescence and fluorescence characterized by excited state lifetimes in the μs and low to sub-ns timescale, respectively. Electrochemical experiments revealed that the zirconium complex possesses a reversible redox event under highly reducing condition (-2.29 V vs. Fc+/0 ).
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Affiliation(s)
- Yu Zhang
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, WV, 26506, USA
| | - Novruz G Akhmedov
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, WV, 26506, USA
| | - Jeffrey L Petersen
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, WV, 26506, USA
| | - Carsten Milsmann
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, WV, 26506, USA
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105
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Wang C, Otto S, Dorn M, Heinze K, Resch-Genger U. Luminescent TOP Nanosensors for Simultaneously Measuring Temperature, Oxygen, and pH at a Single Excitation Wavelength. Anal Chem 2019; 91:2337-2344. [DOI: 10.1021/acs.analchem.8b05060] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Cui Wang
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, Berlin D-12489, Germany
- Institute of Chemistry and Biochemistry, Free University of Berlin, Takustrasse 3, Berlin D-14195, Germany
| | - Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, Mainz D-55128, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, Mainz D-55128, Germany
| | - Matthias Dorn
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, Mainz D-55128, Germany
| | - Katja Heinze
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, Mainz D-55128, Germany
| | - Ute Resch-Genger
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Strasse 11, Berlin D-12489, Germany
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106
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Harris JP, Sonneville C, Villain O, Calas G, Reber C. Analytical fitting of temperature-dependent spin-flip transitions in absorption spectra of Cr3+-doped silicate glasses. Chem Phys Lett 2019. [DOI: 10.1016/j.cpletx.2018.100003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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107
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Chábera P, Fredin LA, Kjær KS, Rosemann NW, Lindh L, Prakash O, Liu Y, Wärnmark K, Uhlig J, Sundström V, Yartsev A, Persson P. Band-selective dynamics in charge-transfer excited iron carbene complexes. Faraday Discuss 2019; 216:191-210. [DOI: 10.1039/c8fd00232k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combination of ultrafast spectroscopy and DFT/TD-DFT calculations of a recently synthesised iron carbene complex elucidates the ultrafast excited state evolution processes in these systems.
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108
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Dee C, Zinna F, Kitzmann WR, Pescitelli G, Heinze K, Di Bari L, Seitz M. Strong circularly polarized luminescence of an octahedral chromium(iii) complex. Chem Commun (Camb) 2019; 55:13078-13081. [DOI: 10.1039/c9cc06909g] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The chiral spin–flip luminophore [Cr(ddpd)2]3+ can be resolved into enantiopure material by chiral HPLC. The pure enantiomers display strong CPL activity for the corresponding near-IR phosphorescence.
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Affiliation(s)
- Carolin Dee
- Institute of Inorganic Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Winald R. Kitzmann
- Institute of Inorganic Chemistry and Analytical Chemistry
- Johannes Gutenberg University of Mainz
- 55128 Mainz
- Germany
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Katja Heinze
- Institute of Inorganic Chemistry and Analytical Chemistry
- Johannes Gutenberg University of Mainz
- 55128 Mainz
- Germany
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Michael Seitz
- Institute of Inorganic Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
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109
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Al-Riyahee AA, Horton PN, Coles SJ, Amoroso AJ, Pope SJ. Syntheses, X-ray structures and characterisation of luminescent chromium(III) complexes incorporating 8-quinolinato ligands. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.10.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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110
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Farran R, Le-Quang L, Mouesca JM, Maurel V, Jouvenot D, Loiseau F, Deronzier A, Chauvin J. [Cr(ttpy)2]3+ as a multi-electron reservoir for photoinduced charge accumulation. Dalton Trans 2019; 48:6800-6811. [PMID: 31033972 DOI: 10.1039/c9dt00848a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Cr(ttpy)2]3+ (ttpy = 4'-(4-methylphenyl)-2,2':6,2''-terpyridine) exhibits rich electrochemical and photophysical properties. Cyclic voltammetry performed in CH3CN shows in the cathodic part the presence of three one-electron reversible systems at -0.47, -0.85 and -1.35 V vs. Ag/AgNO3 10-2 M. These systems are attributed to the reduction of the terpyridine ligands with a partial delocalization of the charge on the tolyl for the last reduction event. The three different reduced species were generated by exhaustive electrolysis and characterized by EPR and UV-visible spectroscopy; DFT calculations were performed to locate the spin density of the electrons added during the reduction. Visible light irradiation of [Cr(ttpy)2]3+ induces the population of a luminescent metal-centered excited state with a lifetime of 270 ns in deoxygenated CH3CN. This excited state can be quenched by an electron transfer process with triphenylphosphine (PPh3) or triethanolamine (TEOA). Using TEOA as a sacrificial electron donor, the doubly reduced species (i.e.[Cr(ttpy)2] +) can be generated under continuous irradiation. In the presence of [Ru(bpy)3]2+ as an additional photosensitizer, the photoreduction of [Cr(ttpy)2]3+ towards [Cr(ttpy)2]+ is accelerated. The trinuclear [{RuII(bpy)2(bpy-O-tpy)}2CrIII]7+ complex ([Ru2Cr]7+) in which a CrIII-bis-terpyridine centre is covalently linked to two RuII-tris-bipyridine moieties by oxo bridges has been synthesised. Its electrochemical, photophysical and photochemical properties were investigated in deoxygenated CH3CN. Cyclic voltammetry indicates only a poor electronic communication between the different subunits, whereas luminescence experiments show a strong quenching of the RuII* excited state by an intramolecular process. Continuous irradiation of [Ru2Cr]7+ under visible conditions in the presence of TEOA leads to [Ru2Cr]4+ where three electrons are stored on the [Cr(ttpy)] subunit.
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Affiliation(s)
- Rajaa Farran
- Univ. Grenoble Alpes, CNRS, DCM, F-38000 Grenoble, France.
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111
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Hockin BM, Li C, Robertson N, Zysman-Colman E. Photoredox catalysts based on earth-abundant metal complexes. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02336k] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Visible light photoredox catalysis has exploded into the consciousness of the synthetic chemist. We critically review Earth-abundant metal complexes photocatalysts including Cu(i), Zn(ii), Ni(0), V(v), Zr(iv), W(0), W(vi), Mo(0), Cr(iii), Co(iii) and Fe(ii).
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Affiliation(s)
- Bryony M. Hockin
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife
- UK
| | - Chenfei Li
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife
- UK
| | - Neil Robertson
- EaStCHEM School of Chemistry
- University of Edinburgh
- Edinburgh
- UK
| | - Eli Zysman-Colman
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife
- UK
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112
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Saracini C, Fukuzumi S, Lee YM, Nam W. Photoexcited state chemistry of metal-oxygen complexes. Dalton Trans 2018; 47:16019-16026. [PMID: 30324192 DOI: 10.1039/c8dt03604g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent advances on the excited state chemistry of metal-oxygen synthetic complexes based on earth-abundant metals such as copper, cobalt, and manganese are reviewed to show a much enhanced reactivity of the photoexcited states as compared with their relative ground states. Mononuclear copper(ii)-superoxide and dinuclear copper(ii)-peroxo complexes underwent copper-oxygen bond cleavage, dioxygen release, and copper(i)/dioxygen rebinding upon photoexcitation at low temperature. Photoirradiation of the cobalt-oxygen compound [(TAML)CoIV(O)]2- (6) (TAML = tetraamidomacrocyclic ligand) at 5 °C yielded a cobalt-oxygen excited state with 0.6(1) ns lifetime, showing a high reactivity in the bimolecular electron-transfer oxidations of m-xylene and anisole. An extremely long-lived excited state was generated upon photoexcitation of a manganese(iv)-oxo complex binding two Sc(OTf)3 molecules, which enabled the hydroxylation of benzene.
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Affiliation(s)
- Claudio Saracini
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.
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113
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Basu U, Otto S, Heinze K, Gasser G. Biological Evaluation of the NIR-Emissive Ruby Analogue [Cr(ddpd)2
][BF4
]3
as a Photodynamic Therapy Photosensitizer. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Uttara Basu
- Laboratory for Inorganic Chemical Biology; Chimie ParisTech PSL University; 75005 Paris France
| | - Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesberweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz; Staudingerweg 9 55128 Mainz Germany
| | - Katja Heinze
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesberweg 10-14 55128 Mainz Germany
| | - Gilles Gasser
- Laboratory for Inorganic Chemical Biology; Chimie ParisTech PSL University; 75005 Paris France
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114
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Doistau B, Collet G, Bolomey EA, Sadat-Noorbakhsh V, Besnard C, Piguet C. Heteroleptic Ter–Bidentate Cr(III) Complexes as Tunable Optical Sensitizers. Inorg Chem 2018; 57:14362-14373. [PMID: 30376321 DOI: 10.1021/acs.inorgchem.8b02530] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin Doistau
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Guillaume Collet
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Emilio Acuña Bolomey
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Vida Sadat-Noorbakhsh
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva, 24 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
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115
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Abstract
In this invited Perspective, recent developments and possible future directions of research on photoactive coordination compounds made from nonprecious transition metal elements will be discussed. The focus is on conceptually new, structurally well-characterized complexes with excited-state lifetimes between 10 ps and 1 ms in fluid solution for possible applications in photosensitizing, light-harvesting, luminescence and catalysis. The key metal elements considered herein are Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Mo, W and Ce in various oxidation states equipped with diverse ligands, giving access to long-lived excited states via a range of fundamentally different types of electronic transitions. Research performed in this area over the past five years demonstrated that a much broader spectrum of metal complexes than what was long considered relevant exhibits useful photophysics and photochemistry.
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Affiliation(s)
- Oliver S Wenger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland
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116
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Hupp B, Nitsch J, Schmitt T, Bertermann R, Edkins K, Hirsch F, Fischer I, Auth M, Sperlich A, Steffen A. Stimulus-induzierte Anion-Kation-Exciplexbildung in Kupfer(I)-Komplexen als Mechanismus für mechanochrome Phosphoreszenz. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807768] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Benjamin Hupp
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Jörn Nitsch
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Tanja Schmitt
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Katharina Edkins
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Florian Hirsch
- Institut für Physikalische und Theoretische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Ingo Fischer
- Institut für Physikalische und Theoretische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Michael Auth
- Physikalisches Institut; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Andreas Sperlich
- Physikalisches Institut; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
| | - Andreas Steffen
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Deutschland
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117
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Hupp B, Nitsch J, Schmitt T, Bertermann R, Edkins K, Hirsch F, Fischer I, Auth M, Sperlich A, Steffen A. Stimulus-Triggered Formation of an Anion-Cation Exciplex in Copper(I) Complexes as a Mechanism for Mechanochromic Phosphorescence. Angew Chem Int Ed Engl 2018; 57:13671-13675. [PMID: 30048568 DOI: 10.1002/anie.201807768] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Indexed: 12/12/2022]
Abstract
The investigation of the mechanisms of mechanochromic luminescence is of fundamental importance for the development of materials for photonic sensors, data storage, and luminescence switches. The structural origin of this phenomenon in phosphorescent molecular systems is rarely known and thus the formulation of structure-property relationships remains challenging. Changes in the M-M interactions have been proposed as the main mechanism with d10 coinage metal compounds. Herein, we describe a new mechanism-a mechanically induced reversible formation of a cation-anion exciplex based on Cu-F interactions-that leads to highly efficient mechanochromic phosphorescence and unusual large emission shifts from UV-blue to yellow for CuI complexes. The low-energy luminescence is thermo- and vaporesponsive, thus allowing the generation of white light as well as for recovering the original UV-blue emission.
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Affiliation(s)
- Benjamin Hupp
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Jörn Nitsch
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Tanja Schmitt
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Katharina Edkins
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Florian Hirsch
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ingo Fischer
- Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Michael Auth
- Physikalisches Institut, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Andreas Sperlich
- Physikalisches Institut, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Andreas Steffen
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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118
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Zhang Y, Petersen JL, Milsmann C. Photochemical C–C Bond Formation in Luminescent Zirconium Complexes with CNN Pincer Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00388] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Zhang
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Jeffrey L. Petersen
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Carsten Milsmann
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
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119
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Otto S, Förster C, Wang C, Resch-Genger U, Heinze K. A Strongly Luminescent Chromium(III) Complex Acid. Chemistry 2018; 24:12555-12563. [DOI: 10.1002/chem.201802797] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/02/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz; Staudingerweg 9 55128 Mainz Germany
| | - Christoph Förster
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Cui Wang
- Division 1.2 Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard Willstätter-Straße 11 12489 Berlin Germany
- Institut für Chemie und Biochemie; Freie Universität Berlin; 14195 Berlin Germany
| | - Ute Resch-Genger
- Division 1.2 Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard Willstätter-Straße 11 12489 Berlin 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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120
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121
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Otto S, Harris JP, Heinze K, Reber C. Molecular Ruby under Pressure. Angew Chem Int Ed Engl 2018; 57:11069-11073. [PMID: 29964315 DOI: 10.1002/anie.201806755] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Indexed: 02/06/2023]
Abstract
The intensely luminescent chromium(III) complexes [Cr(ddpd)2 ]3+ and [Cr(H2 tpda)2 ]3+ show surprising pressure-induced red shifts of up to -15 cm-1 kbar-1 for their sharp spin-flip emission bands (ddpd=N,N'-dimethyl-N,N'-dipyridine-2-yl-pyridine-2,6-diamine; H2 tpda=2,6-bis(2-pyridylamino)pyridine). These shifts surpass that of the established standard, ruby Al2 O3 :Cr3+ , by a factor of 20. Beyond the common application in the crystalline state, the very high quantum yield of [Cr(ddpd)2 ]3+ enables optical pressure sensing in aqueous and methanolic solution. These unique features of the molecular rubies [Cr(ddpd)2 ]3+ and [Cr(H2 tpda)2 ]3+ pave the way for highly sensitive optical pressure determination and unprecedented molecule-based pressure sensing with a single type of emitter.
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Affiliation(s)
- Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany.,Graduate School Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany
| | - Joe P Harris
- Département de chimie, Université de Montréal, Montréal, Québec, H3C 3J7, Canada
| | - Katja Heinze
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, Québec, H3C 3J7, Canada
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122
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Pal AK, Li C, Hanan GS, Zysman‐Colman E. Blue‐Emissive Cobalt(III) Complexes and Their Use in the Photocatalytic Trifluoromethylation of Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2018; 57:8027-8031. [DOI: 10.1002/anie.201802532] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/09/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Amlan K. Pal
- Département de ChimieUniversité de Montréal Montréal Québec H3T 1J4 Canada
- Organic Semiconductor CenterEaStCHEM School of ChemistryUniversity of St Andrews St Andrews Fife KY16 9ST UK
| | - Chenfei Li
- Organic Semiconductor CenterEaStCHEM School of ChemistryUniversity of St Andrews St Andrews Fife KY16 9ST UK
| | - Garry S. Hanan
- Département de ChimieUniversité de Montréal Montréal Québec H3T 1J4 Canada
| | - Eli Zysman‐Colman
- Organic Semiconductor CenterEaStCHEM School of ChemistryUniversity of St Andrews St Andrews Fife KY16 9ST UK
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123
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Pal AK, Li C, Hanan GS, Zysman‐Colman E. Blue‐Emissive Cobalt(III) Complexes and Their Use in the Photocatalytic Trifluoromethylation of Polycyclic Aromatic Hydrocarbons. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802532] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Amlan K. Pal
- Département de ChimieUniversité de Montréal Montréal Québec H3T 1J4 Canada
- Organic Semiconductor CenterEaStCHEM School of ChemistryUniversity of St Andrews St Andrews Fife KY16 9ST UK
| | - Chenfei Li
- Organic Semiconductor CenterEaStCHEM School of ChemistryUniversity of St Andrews St Andrews Fife KY16 9ST UK
| | - Garry S. Hanan
- Département de ChimieUniversité de Montréal Montréal Québec H3T 1J4 Canada
| | - Eli Zysman‐Colman
- Organic Semiconductor CenterEaStCHEM School of ChemistryUniversity of St Andrews St Andrews Fife KY16 9ST UK
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124
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Dorn M, Mack K, Carrella LM, Rentschler E, Förster C, Heinze K. Structure and Electronic Properties of an Expanded Terpyridine Complex of Nickel(II) [Ni(ddpd)2](BF4)2. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Matthias Dorn
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Katharina Mack
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Luca M. Carrella
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Eva Rentschler
- 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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125
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Poirier S, Lynn H, Reber C, Tailleur E, Marchivie M, Guionneau P, Probert MR. Variation of M···H–C Interactions in Square-Planar Complexes of Nickel(II), Palladium(II), and Platinum(II) Probed by Luminescence Spectroscopy and X-ray Diffraction at Variable Pressure. Inorg Chem 2018; 57:7713-7723. [DOI: 10.1021/acs.inorgchem.8b00724] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphanie Poirier
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Hudson Lynn
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Elodie Tailleur
- CNRS, Université de Bordeaux, ICMCB, UMR 5026, 87 avenue du Dr A. Schweitzer, F-33608 Pessac, France
| | - Mathieu Marchivie
- CNRS, Université de Bordeaux, ICMCB, UMR 5026, 87 avenue du Dr A. Schweitzer, F-33608 Pessac, France
| | - Philippe Guionneau
- CNRS, Université de Bordeaux, ICMCB, UMR 5026, 87 avenue du Dr A. Schweitzer, F-33608 Pessac, France
| | - Michael R. Probert
- Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
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126
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127
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Cadranel A, Oviedo PS, Alborés P, Baraldo LM, Guldi DM, Hodak JH. Electronic Energy Transduction from {Ru(py) 4} Chromophores to Cr(III) Luminophores. Inorg Chem 2018; 57:3042-3053. [PMID: 29473740 DOI: 10.1021/acs.inorgchem.7b02799] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Despite the large body of work on {Ru(bpy)2} sensitizer fragments, the same attention has not been devoted to their {Ru(py)4} analogues. In this context, we explored the donor-acceptor trans-[Ru(L)4{(μ-NC)Cr(CN)5}2]4-, where L = pyridine, 4-methoxypyridine, 4-dimethylaminopyridine. We report on the synthesis and the crystal structure as well as the electrochemical, spectroscopical, and photophysical properties of these trimetallic complexes, including transient absorption measurements. We observed emission from chromium-centered d-d states upon illuminating into either MLCT or MM'CT absorptions of {Ru(L)4} or {Ru-Cr}, respectively. The underlying energy transfer is as fast as 600 fs with quantum efficiencies ranging from 10% to 100%. These results document that {Ru(py)4} sensitizer fragments are as efficient as {Ru(bpy)2} in short-range energy transfer scenarios.
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Affiliation(s)
- Alejandro Cadranel
- Departamento de Química Analítica, Inorgánica y Química Física & INQUIMAE, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , Pabellón 2 , Ciudad Universitaria, C1428EHA Buenos Aires , Argentina.,Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM) , Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 1-3 , 91058 Erlangen , Germany
| | - Paola S Oviedo
- Departamento de Química Analítica, Inorgánica y Química Física & INQUIMAE, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , Pabellón 2 , Ciudad Universitaria, C1428EHA Buenos Aires , Argentina
| | - Pablo Alborés
- Departamento de Química Analítica, Inorgánica y Química Física & INQUIMAE, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , Pabellón 2 , Ciudad Universitaria, C1428EHA Buenos Aires , Argentina
| | - Luis M Baraldo
- Departamento de Química Analítica, Inorgánica y Química Física & INQUIMAE, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , Pabellón 2 , Ciudad Universitaria, C1428EHA Buenos Aires , Argentina
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM) , Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 1-3 , 91058 Erlangen , Germany
| | - José H Hodak
- Departamento de Química Analítica, Inorgánica y Química Física & INQUIMAE, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , Pabellón 2 , Ciudad Universitaria, C1428EHA Buenos Aires , Argentina
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128
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Olafsen BE, Crescenzo GV, Moisey LP, Patrick BO, Smith KM. Photolytic Reactivity of Organometallic Chromium Bipyridine Complexes. Inorg Chem 2018; 57:9611-9621. [PMID: 29461816 DOI: 10.1021/acs.inorgchem.7b03195] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Known stable [Cr(bpy)2(Ph)2](BPh4) complexes undergo reductive elimination of biphenyl with visible-light photolysis using household incandescent or compact fluorescent light bulbs. A series of [Cr(R-bpy)2(Ar)2](X) complexes (R = H or CMe3; Ar = Ph, C6H4-CMe3, or C6H4-OMe; X = I, BPh4, or PF6) were prepared, and the effect of varying the bipyridine and aryl ligands on the UV-visible spectra and electrochemistry of the chromium(III) complexes was investigated. Photolysis of a mixture of two different bis(aryl) complexes gave only the homocoupled biaryl products by 1H NMR and gas chromatography/mass spectrometry analysis. The initial product of photoinduced reductive elimination of [Cr(bpy)2(Ar)2](PF6) was trapped with bipyridine to generate [Cr(bpy)3](PF6) and with benzoyl peroxide to form [Cr(bpy)2(O2CPh)2](PF6). The latter chromium(III) bis(benzoate) complex was also synthesized by the addition of bipyridine and PhCO2H to Cp2Cr, followed by air oxidation. The neutral Cr(bpy)(S2CNMe2)Ph2 complex also generated biphenyl upon visible-light photolysis. While the treatment of Cr(tBu-bpy)(dpm)Cl2 [dpm = (OCtBu)2CH] with AgO2CPh gave trans-Cr(tBu-bpy)(dpm)(O2CPh)2, reaction of the dichloro precursor with PhMgCl produced anionic [Cr(tBu-bpy)Ph3]- with [Mg(dpm)(THF)4]+ as the countercation, with both complexes characterized by single-crystal X-ray diffraction. Protonolysis of Cr(bpy)Ph3(THF) with 8-hydroxyquinoline produced Cr(bpy)(quin)Ph2, which generated biphenyl under visible-light photolysis, and the initial product of reductive elimination was trapped by bipyridine or benzoyl peroxide. A related Cr(bpy)(quin)2 complex was synthesized by protonolysis of Cr(bpy)[N(SiMe3)2]2 and characterized by single-crystal X-ray diffraction.
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Affiliation(s)
- Benjamin E Olafsen
- Department of Chemistry , University of British Columbia, Okanagan , 3247 University Way , Kelowna , British Columbia V1V 1V7 , Canada
| | - Giuseppe V Crescenzo
- Department of Chemistry , University of British Columbia, Okanagan , 3247 University Way , Kelowna , British Columbia V1V 1V7 , Canada
| | - Luke P Moisey
- Department of Chemistry , University of British Columbia, Okanagan , 3247 University Way , Kelowna , British Columbia V1V 1V7 , Canada
| | - Brian O Patrick
- Department of Chemistry , University of British Columbia, Vancouver , Vancouver , British Columbia V6T 1Z21 , Canada
| | - Kevin M Smith
- Department of Chemistry , University of British Columbia, Okanagan , 3247 University Way , Kelowna , British Columbia V1V 1V7 , Canada
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129
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Büldt LA, Wenger OS. Luminescent complexes made from chelating isocyanide ligands and earth-abundant metals. Dalton Trans 2018; 46:15175-15177. [PMID: 29063087 DOI: 10.1039/c7dt03620e] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this invited frontier article, recently discovered d6 and d10 complexes with long-lived metal-to-ligand charge transfer (MLCT) excited states are highlighted. Chelating diisocyanide ligands give access to emissive Mo(0) and Cr(0) complexes with d6 electron configuration exhibiting photophysical properties similar to those of Ru(ii) polypyridines or cyclometalated Ir(iii) complexes. With Ni(0), these ligands yield luminescent tetrahedral d10 complexes similar to isoelectronic Cu(i) bis(diimine) compounds.
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Affiliation(s)
- Laura A Büldt
- Department of Chemistry, University of Basel, St Johanns-Ring 19, 4056 Basel, Switzerland.
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130
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Chábera P, Kjaer KS, Prakash O, Honarfar A, Liu Y, Fredin LA, Harlang TCB, Lidin S, Uhlig J, Sundström V, Lomoth R, Persson P, Wärnmark K. Fe II Hexa N-Heterocyclic Carbene Complex with a 528 ps Metal-to-Ligand Charge-Transfer Excited-State Lifetime. J Phys Chem Lett 2018; 9:459-463. [PMID: 29298063 DOI: 10.1021/acs.jpclett.7b02962] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The iron carbene complex [FeII(btz)3](PF6)2 (where btz = 3,3'-dimethyl-1,1'-bis(p-tolyl)-4,4'-bis(1,2,3-triazol-5-ylidene)) has been synthesized, isolated, and characterized as a low-spin ferrous complex. It exhibits strong metal-to-ligand charge transfer (MLCT) absorption bands throughout the visible spectrum, and excitation of these bands gives rise to a 3MLCT state with a 528 ps excited-state lifetime in CH3CN solution that is more than one order of magnitude longer compared with the MLCT lifetime of any previously reported FeII complex. The low potential of the [Fe(btz)3]3+/[Fe(btz)3]2+ redox couple makes the 3MLCT state of [FeII(btz)3]2+ a potent photoreductant that can be generated by light absorption throughout the visible spectrum. Taken together with our recent results on the [FeIII(btz)3]3+ form of this complex, these results show that the FeII and FeIII oxidation states of the same Fe(btz)3 complex feature long-lived MLCT and LMCT states, respectively, demonstrating the versatility of iron N-heterocyclic carbene complexes as promising light-harvesters for a broad range of oxidizing and reducing conditions.
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Affiliation(s)
| | - Kasper S Kjaer
- PULSE Institute, SLAC National Accelerator Laboratory, Stanford University , Menlo Park, California 94025, United States
| | | | | | | | | | | | | | | | | | - Reiner Lomoth
- Department of Chemistry - Ångström Laboratory, Uppsala University , Box 523, SE-75120 Uppsala, Sweden
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131
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Wang C, Otto S, Dorn M, Kreidt E, Lebon J, Sršan L, Di Martino-Fumo P, Gerhards M, Resch-Genger U, Seitz M, Heinze K. Deuterierter molekularer Rubin mit Rekord-Lumineszenzquantenausbeute. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711350] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Cui Wang
- Fachbereich Biophotonik; Bundesanstalt für Materialforschung und -prüfung (BAM); Richard-Willstätter-Str. 11 12489 Berlin Deutschland
- Institut für Chemie und Biochemie; Freie Universität Berlin; 14195 Berlin Deutschland
| | - Sven Otto
- Institut für Anorganische Chemie und Analytische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
- Graduiertenschule Materials Science in Mainz - MAINZ; Staudingerweg 9 55128 Mainz Deutschland
| | - Matthias Dorn
- Institut für Anorganische Chemie und Analytische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
| | - Elisabeth Kreidt
- Institut für Anorganische Chemie, Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Jakob Lebon
- Institut für Anorganische Chemie, Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Laura Sršan
- Institut für Anorganische Chemie, Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Patrick Di Martino-Fumo
- Department of Chemistry and Research Center Optimas; Universität Kaiserslautern; Erwin-Schrödinger-Str. 67663 Kaiserslautern Deutschland
| | - Markus Gerhards
- Department of Chemistry and Research Center Optimas; Universität Kaiserslautern; Erwin-Schrödinger-Str. 67663 Kaiserslautern Deutschland
| | - Ute Resch-Genger
- Fachbereich Biophotonik; Bundesanstalt für Materialforschung und -prüfung (BAM); Richard-Willstätter-Str. 11 12489 Berlin Deutschland
| | - Michael Seitz
- Institut für Anorganische Chemie, Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Deutschland
| | - Katja Heinze
- Institut für Anorganische Chemie und Analytische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
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132
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Wang C, Otto S, Dorn M, Kreidt E, Lebon J, Sršan L, Di Martino-Fumo P, Gerhards M, Resch-Genger U, Seitz M, Heinze K. Deuterated Molecular Ruby with Record Luminescence Quantum Yield. Angew Chem Int Ed Engl 2018; 57:1112-1116. [DOI: 10.1002/anie.201711350] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Indexed: 01/29/2023]
Affiliation(s)
- Cui Wang
- Division Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin Germany
- Institut für Chemie und Biochemie; Freie Universität Berlin; 14195 Berlin Germany
| | - Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz; Staudingerweg 9 55128 Mainz Germany
| | - Matthias Dorn
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Elisabeth Kreidt
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Jakob Lebon
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Laura Sršan
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Patrick Di Martino-Fumo
- Department of Chemistry and Research Center Optimas; University Kaiserslautern; Erwin-Schrödinger-Strasse 67663 Kaiserslautern Germany
| | - Markus Gerhards
- Department of Chemistry and Research Center Optimas; University Kaiserslautern; Erwin-Schrödinger-Strasse 67663 Kaiserslautern Germany
| | - Ute Resch-Genger
- Division Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin Germany
| | - Michael Seitz
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen 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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133
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Jiménez JR, Doistau B, Besnard C, Piguet C. Versatile heteroleptic bis-terdentate Cr(iii) chromophores displaying room temperature millisecond excited state lifetimes. Chem Commun (Camb) 2018; 54:13228-13231. [DOI: 10.1039/c8cc07671e] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cr–Br bonds can be specifically labilized for producing phosphorescent and tuneable heteroleptic bis-terdentate Cr(iii) long-lived sensitizers.
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Affiliation(s)
- Juan-Ramón Jiménez
- Department of Inorganic and Analytical Chemistry, University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Benjamin Doistau
- Department of Inorganic and Analytical Chemistry, University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Céline Besnard
- Laboratory of Cristallography, University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry, University of Geneva
- CH-1211 Geneva 4
- Switzerland
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134
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Wu SH, Shao JY, Gong ZL, Chen N, Zhong YW. Tuning the dual emissions of a monoruthenium complex with a dangling coordination site by solvents, O2, and metal ions. Dalton Trans 2018; 47:292-297. [DOI: 10.1039/c7dt04198e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A monoruthenium complex with a dangling coordination site shows solvent-, O2-, and metal ion-modulated dual fluorescence and phosphorescence emissions.
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Affiliation(s)
- Si-Hai Wu
- School of Biomedical Sciences
- Huaqiao University
- Quanzhou
- China
| | - Jiang-Yang Shao
- CAS Key Laboratory of Photochemistry
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Zhong-Liang Gong
- CAS Key Laboratory of Photochemistry
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Na Chen
- School of Biomedical Sciences
- Huaqiao University
- Quanzhou
- China
| | - Yu-Wu Zhong
- CAS Key Laboratory of Photochemistry
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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135
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Zhang Y, Traber P, Zedler L, Kupfer S, Gräfe S, Schulz M, Frey W, Karnahl M, Dietzek B. Cu(i) vs. Ru(ii) photosensitizers: elucidation of electron transfer processes within a series of structurally related complexes containing an extended π-system. Phys Chem Chem Phys 2018; 20:24843-24857. [DOI: 10.1039/c8cp04595j] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The charge transfer behavior of heteroleptic Cu(i) photosensitizers was investigated by spectroelectrochemistry and compared to their structurally related Ru(ii) complexes.
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Affiliation(s)
- Ying Zhang
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Department Functional Interfaces
| | - Philipp Traber
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Linda Zedler
- Department Functional Interfaces
- Leibniz Institute of Photonic Technology Jena (IPHT)
- 07745 Jena
- Germany
| | - Stephan Kupfer
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Stefanie Gräfe
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Martin Schulz
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry
- University of Stuttgart
- 70569 Stuttgart
- Germany
| | - Michael Karnahl
- Institute of Organic Chemistry
- University of Stuttgart
- 70569 Stuttgart
- Germany
| | - Benjamin Dietzek
- Institute of Physical Chemistry and Abbe Center of Photonics
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Department Functional Interfaces
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136
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Otto S, Moll J, Förster C, Geißler D, Wang C, Resch-Genger U, Heinze K. Three-in-One Crystal: The Coordination Diversity of Zinc Polypyridine Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700948] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz; 55128 Mainz Germany
| | - Johannes Moll
- 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
| | - Daniel Geißler
- Division 1.10 Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin Germany
| | - Cui Wang
- Division 1.10 Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin Germany
- Freie Universität Berlin; 14195 Berlin Germany
| | - Ute Resch-Genger
- Division 1.10 Biophotonics; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin 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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137
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Larsen CB, Wenger OS. Photoredox Catalysis with Metal Complexes Made from Earth-Abundant Elements. Chemistry 2017; 24:2039-2058. [PMID: 28892199 DOI: 10.1002/chem.201703602] [Citation(s) in RCA: 227] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/08/2017] [Indexed: 01/14/2023]
Abstract
Photoredox chemistry with metal complexes as sensitizers and catalysts frequently relies on precious elements such as ruthenium or iridium. Over the past 5 years, important progress towards the use of complexes made from earth-abundant elements in photoredox catalysis has been made. This review summarizes the advances made with photoactive CrIII , FeII , CuI , ZnII , ZrIV , Mo0 , and UVI complexes in the context of synthetic organic photoredox chemistry using visible light as an energy input. Mechanistic considerations are combined with discussions of reaction types and scopes. Perspectives for the future of the field are discussed against the background of recent significant developments of new photoactive metal complexes made from earth-abundant elements.
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Affiliation(s)
- Christopher B Larsen
- Department of Chemistry, University of Basel, St Johanns-Ring 19, Basel, 4056, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, St Johanns-Ring 19, Basel, 4056, Switzerland
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138
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Büldt LA, Wenger OS. Chromium complexes for luminescence, solar cells, photoredox catalysis, upconversion, and phototriggered NO release. Chem Sci 2017; 8:7359-7367. [PMID: 29163886 PMCID: PMC5672834 DOI: 10.1039/c7sc03372a] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/04/2017] [Indexed: 12/15/2022] Open
Abstract
Cr(iii) and Cr(0) complexes are earth-abundant alternatives to photosensitizers that are commonly made from precious metals.
Some complexes of Cr(iii) and Cr(0) have long been known to exhibit interesting photophysical and photochemical properties, but in the past few years important conceptual progress was made. This Perspective focuses on the recent developments of Cr(iii) complexes as luminophores and dyes for solar cells, their application in photoredox catalysis, their use as sensitizers in upconversion processes, and their performance as photochemical nitric oxide sources. The example of a luminescent Cr(0) isocyanide complex illustrates the possibility of obtaining photoactive analogues of d6 metal complexes that are commonly made from precious metals such as Ru(ii) or Ir(iii). The studies highlighted herein illustrate the favorable excited-state properties of robust first-row transition metal complexes with broad application potential.
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Affiliation(s)
- Laura A Büldt
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
| | - Oliver S Wenger
- Department of Chemistry , University of Basel , St. Johanns-Ring 19 , 4056 Basel , Switzerland .
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139
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Hupp B, Schiller C, Lenczyk C, Stanoppi M, Edkins K, Lorbach A, Steffen A. Synthesis, Structures, and Photophysical Properties of a Series of Rare Near-IR Emitting Copper(I) Complexes. Inorg Chem 2017; 56:8996-9008. [DOI: 10.1021/acs.inorgchem.7b00958] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benjamin Hupp
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Carl Schiller
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Carsten Lenczyk
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Marco Stanoppi
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Katharina Edkins
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Andreas Lorbach
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Andreas Steffen
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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140
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Wu SH, Shao JY, Dai X, Cui X, Su H, Zhong YW. Synthesis and Characterization of Tris(bidentate) Ruthenium Complexes of Di(pyrid-2-yl)(methyl)amine. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Si-Hai Wu
- School of Biomedical Sciences; Huaqiao University; 362021 Quanzhou Fujian China
| | - Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center for Excellence in Molecular Sciences; Chinese Academy of Sciences; 100190 Beijing China
| | - Xiaojuan Dai
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center for Excellence in Molecular Sciences; Chinese Academy of Sciences; 100190 Beijing China
- University of Chinese Academy of Sciences; 100049 Beijing China
| | - Xiuling Cui
- School of Biomedical Sciences; Huaqiao University; 362021 Quanzhou Fujian China
| | - Hongmei Su
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center for Excellence in Molecular Sciences; Chinese Academy of Sciences; 100190 Beijing China
- University of Chinese Academy of Sciences; 100049 Beijing China
- College of Chemistry; Beijing Normal University; 100875 Beijing China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center for Excellence in Molecular Sciences; Chinese Academy of Sciences; 100190 Beijing China
- University of Chinese Academy of Sciences; 100049 Beijing China
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141
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Otto S, Nauth AM, Ermilov E, Scholz N, Friedrich A, Resch-Genger U, Lochbrunner S, Opatz T, Heinze K. Photo-Chromium: Sensitizer for Visible-Light-Induced Oxidative C−H Bond Functionalization-Electron or Energy Transfer? CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201700077] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sven Otto
- Institute of Inorganic and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz; Staudingerweg 9 55128 Mainz Germany
| | - Alexander M. Nauth
- Institute of Organic Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Eugenyi Ermilov
- Division 1.10; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Str. 11 12489 Berlin Germany
| | - Norman Scholz
- Division 1.10; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Str. 11 12489 Berlin Germany
| | - Aleksej Friedrich
- Institute of Physics, University of Rostock; Albert-Einstein-Str. 23 18059 Rostock Germany
| | - Ute Resch-Genger
- Division 1.10; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Str. 11 12489 Berlin Germany
| | - Stefan Lochbrunner
- Institute of Physics, University of Rostock; Albert-Einstein-Str. 23 18059 Rostock Germany
| | - Till Opatz
- Institute of Organic Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Katja Heinze
- Institute of Inorganic and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
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142
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Sarkar B, Suntrup L. Illuminating Iron: Mesoionic Carbenes as Privileged Ligands in Photochemistry. Angew Chem Int Ed Engl 2017; 56:8938-8940. [DOI: 10.1002/anie.201704522] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Biprajit Sarkar
- Institut für Chemie und Biochemie-Anorganische Chemie; Freie Universität Berlin; Fabeckstrasse 34-36 14195 Berlin Germany
| | - Lisa Suntrup
- Institut für Chemie und Biochemie-Anorganische Chemie; Freie Universität Berlin; Fabeckstrasse 34-36 14195 Berlin Germany
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143
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Sarkar B, Suntrup L. Eisen im Rampenlicht: mesoionische Carbene als privilegierte Liganden in der Photochemie. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704522] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Biprajit Sarkar
- Institut für Chemie und Biochemie - Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Deutschland
| | - Lisa Suntrup
- Institut für Chemie und Biochemie - Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Deutschland
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144
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Mengel AKC, Bissinger C, Dorn M, Back O, Förster C, Heinze K. Boosting Vis/NIR Charge-Transfer Absorptions of Iron(II) Complexes by N-Alkylation and N-Deprotonation in the Ligand Backbone. Chemistry 2017; 23:7920-7931. [PMID: 28383155 DOI: 10.1002/chem.201700959] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 11/08/2022]
Abstract
Reversing the metal-to-ligand charge transfer (3 MLCT)/metal-centered (3 MC) excited state order in iron(II) complexes is a challenging objective, yet would finally result in long-sought luminescent transition-metal complexes with an earth-abundant central ion. One approach to achieve this goal is based on low-energy charge-transfer absorptions in combination with a strong ligand field. Coordinating electron-rich and electron-poor tridentate oligopyridine ligands with large bite angles at iron(II) enables both low-energy MLCT absorption bands around 590 nm and a strong ligand field. Variations of the electron-rich ligand by introducing longer alkyl substituents destabilizes the iron(II) complex towards ligand substitution reactions while hardly affecting the optical properties. On the other hand, N-deprotonation of the ligand backbone is feasible and reversible, yielding deep-green complexes with charge-transfer bands extending into the near-IR region. Time-dependent density functional theory calculations assign these absorption bands to transitions with dipole-allowed ligand-to-ligand charge transfer character. This unique geometric and electronic situation establishes a further regulating screw to increase the energy gap between potentially emitting charge-transfer states and the non-radiative ligand field states of iron(II) dyes.
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Affiliation(s)
- Andreas K C Mengel
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Christian Bissinger
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Matthias Dorn
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Oliver Back
- 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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145
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Otto S, Scholz N, Behnke T, Resch-Genger U, Heinze K. Thermo-Chromium: A Contactless Optical Molecular Thermometer. Chemistry 2017; 23:12131-12135. [DOI: 10.1002/chem.201701726] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Sven Otto
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg-University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
- Graduate School Materials Science in Mainz; Staudingerweg 9 55128 Mainz Germany
| | - Norman Scholz
- Division 1.10; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin Germany
| | - Thomas Behnke
- Division 1.10; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin Germany
| | - Ute Resch-Genger
- Division 1.10; Federal Institute for Materials Research and Testing (BAM); Richard-Willstätter-Strasse 11 12489 Berlin 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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146
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Harris JP, Reber C, Colmer HE, Jackson TA, Forshaw AP, Smith JM, Kinney RA, Telser J. Near-infrared 2Eg → 4A2g and visible LMCT luminescence from a molecular bis-(tris(carbene)borate) manganese(IV) complex. CAN J CHEM 2017. [DOI: 10.1139/cjc-2016-0607] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The molecular bis-(tris(carbene)borate) manganese(IV) complex [{PhB(MeIm)3}2Mn](OTf)2 shows 2Eg → 4A2g luminescence at 828 nm in the solid state at 85 K; this wavelength is longer by approximately 100 nm than the wavelengths typically observed for manganese(IV) and chromium(III) doped solids and for molecular chromium(III) complexes. Weak luminescence is also observed from a LMCT excited state with an absorption maximum at 500 nm. This represents the first molecular manganese(IV) compound for which luminescence has been reported.
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Affiliation(s)
- Joe P. Harris
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Hannah E. Colmer
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | | | - Adam P. Forshaw
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA
| | - Jeremy M. Smith
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA
| | - R. Adam Kinney
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Joshua Telser
- Department of Biological, Chemical and Physical Sciences, Roosevelt University, Chicago, IL 60605, USA
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147
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Büldt LA, Guo X, Vogel R, Prescimone A, Wenger OS. A Tris(diisocyanide)chromium(0) Complex Is a Luminescent Analog of Fe(2,2'-Bipyridine) 32. J Am Chem Soc 2017; 139:985-992. [PMID: 28054486 DOI: 10.1021/jacs.6b11803] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A meta-terphenyl unit was substituted with an isocyanide group on each of its two terminal aryls to afford a bidentate chelating ligand (CNtBuAr3NC) that is able to stabilize chromium in its zerovalent oxidation state. The homoleptic Cr(CNtBuAr3NC)3 complex luminesces in solution at room temperature, and its excited-state lifetime (2.2 ns in deaerated THF at 20 °C) is nearly 2 orders of magnitude longer than the current record lifetime for isoelectronic Fe(II) complexes, which are of significant interest as earth-abundant sensitizers in dye-sensitized solar cells. Due to its chelating ligands, Cr(CNtBuAr3NC)3 is more robust than Cr(0) complexes with carbonyl or monodentate isocyanides, manifesting in comparatively slow photodegradation. In the presence of excess anthracene in solution, efficient energy transfer and subsequent triplet-triplet annihilation upconversion is observed. With an excited-state oxidation potential of -2.43 V vs Fc+/Fc, the Cr(0) complex is a very strong photoreductant. The findings presented herein are relevant for replacement of precious metals in dye-sensitized solar cells and in luminescent devices by earth-abundant elements.
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Affiliation(s)
- Laura A Büldt
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Xingwei Guo
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Raphael Vogel
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Alessandro Prescimone
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
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148
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Zare D, Doistau B, Nozary H, Besnard C, Guénée L, Suffren Y, Pelé AL, Hauser A, Piguet C. CrIII as an alternative to RuII in metallo-supramolecular chemistry. Dalton Trans 2017; 46:8992-9009. [DOI: 10.1039/c7dt01747b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Semi-labile [Cr(tpy)(CF3SO3)3] precursors can be exploited for building rod-like dinuclear dyads, in which paramagnetic and luminescent trivalent CrIII replace diamagnetic RuII for unravelling intermetallic communication in supramolecular architectures.
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Affiliation(s)
- Davood Zare
- Department of Inorganic and Analytical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Benjamin Doistau
- Department of Inorganic and Analytical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Homayoun Nozary
- Department of Inorganic and Analytical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Céline Besnard
- Laboratory of Crystallography
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Laure Guénée
- Laboratory of Crystallography
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Yan Suffren
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Anne-Laure Pelé
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Andreas Hauser
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
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149
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Stevenson SM, Higgins RF, Shores MP, Ferreira EM. Chromium photocatalysis: accessing structural complements to Diels-Alder adducts with electron-deficient dienophiles. Chem Sci 2017; 8:654-660. [PMID: 28451213 PMCID: PMC5297334 DOI: 10.1039/c6sc03303b] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/11/2016] [Indexed: 12/29/2022] Open
Abstract
A chromium-catalyzed, visible light-activated net [4 + 2] cycloaddition between dienes and electron-deficient alkenes is described. Gathered evidence, via control experiments, isolated intermediates, and measured redox potentials, points to several converging reaction pathways that afford the cyclohexene adducts, including a photochemical [2 + 2] cycloaddition/vinylcyclobutane rearrangement cascade and a substrate excitation/oxidation sequence to a radical cation intermediate. Notably, the accompanying mechanistic stipulations result in a process that yields regioisomeric compounds from those generated by traditional Diels-Alder cycloadditions.
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Affiliation(s)
- Susan M Stevenson
- Department of Chemistry , University of Georgia , Athens , GA 30602 , USA .
| | - Robert F Higgins
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523 , USA
| | - Matthew P Shores
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523 , USA
| | - Eric M Ferreira
- Department of Chemistry , University of Georgia , Athens , GA 30602 , USA .
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150
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Synthesis, Structure and Reactivity of Cyclometalated Nickel(II) Complexes: A Review and Perspective. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2016. [DOI: 10.1007/s40010-016-0289-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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