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Wu L, Holzapfel M, Schmiedel A, Peng F, Moos M, Mentzel P, Shi J, Neubert T, Bertermann R, Finze M, Fox MA, Lambert C, Ji L. Optically induced charge-transfer in donor-acceptor-substituted p- and m- C 2B 10H 12 carboranes. Nat Commun 2024; 15:3005. [PMID: 38589381 PMCID: PMC11001991 DOI: 10.1038/s41467-024-47384-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 03/28/2024] [Indexed: 04/10/2024] Open
Abstract
Icosahedral carboranes, C2B10H12, have long been considered to be aromatic but the extent of conjugation between these clusters and their substituents is still being debated. m- and p-Carboranes are compared with m- and p-phenylenes as conjugated bridges in optical functional chromophores with a donor and an acceptor as substituents here. The absorption and fluorescence data for both carboranes from experimental techniques (including femtosecond transient absorption, time-resolved fluorescence and broadband fluorescence upconversion) show that the absorption and emission processes involve strong intramolecular charge transfer between the donor and acceptor substituents via the carborane cluster. From quantum chemical calculations on these carborane systems, the charge transfer process depends on the relative torsional angles of the donor and acceptor groups where an overlap between the two frontier orbitals exists in the bridging carborane cluster.
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Affiliation(s)
- Lin Wu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Marco Holzapfel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Alexander Schmiedel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Fuwei Peng
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Michael Moos
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Paul Mentzel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Junqing Shi
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Thomas Neubert
- 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
| | - Maik Finze
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Mark A Fox
- Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, UK
| | - Christoph Lambert
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
| | - Lei Ji
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China.
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Conway-Kenny R, Ferrer-Ugalde A, Careta O, Cui X, Zhao J, Nogués C, Núñez R, Cabrera-González J, Draper SM. Ru(ii) and Ir(iii) phenanthroline-based photosensitisers bearing o-carborane: PDT agents with boron carriers for potential BNCT. Biomater Sci 2021; 9:5691-5702. [PMID: 34264257 DOI: 10.1039/d1bm00730k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four novel transition metal-carborane photosensitisers were prepared by Sonogashira cross-coupling of 1-(4-ethynylbenzyl)-2-methyl-o-carborane (A-CB) with halogenated Ru(ii)- or Ir(iii)-phenanthroline complexes. The resulting boron-rich complexes with one (RuCB and IrCB) or two carborane cages (RuCB2 and IrCB2) were spectroscopically characterised, and their photophysical properties investigated. RuCB displayed the most attractive photophysical properties in solution (λem 635 nm, τT 2.53 μs, and φp 20.4%). Nanosecond time-resolved transient absorption studies were used to explore the 3MLCT nature of the triplet excited states, and the highest singlet oxygen quantum yields (ΦΔ) were obtained for the mono-carborane-phenanthroline complexes (RuCB: 52% and IrCB: 25%). None of the complexes produce dark toxicity in SKBR-3 cells after incubation under photodynamic therapy (PDT) conditions. Remarkably, mono-carboranes RuCB and IrCB were the best internalised by the SKBR-3 cells, demonstrating the first examples of tris-bidentate transition metal-carborane complexes acting as triplet photosensitisers for PDT with a high photoactivity; RuCB or IrCB killed ∼50% of SKBR-3 cells at 10 μM after irradiation. Therefore, the high-boron content and the photoactive properties of these photosensitisers make them potential candidates as dual anti-cancer agents for PDT and Boron Neutron Capture Therapy (BNCT).
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Affiliation(s)
- Robert Conway-Kenny
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Albert Ferrer-Ugalde
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193-Bellatera, Barcelona, Spain
| | - Oriol Careta
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193-Bellaterra, Barcelona, Spain.
| | - Xiaoneng Cui
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland. and State Key Laboratory of Fine Chemicals, Dalian University of Technology, E208 Western Campus, 2 Ling-Gong Road, Dalian 116012, P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, E208 Western Campus, 2 Ling-Gong Road, Dalian 116012, P. R. China
| | - Carme Nogués
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193-Bellaterra, Barcelona, Spain.
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193-Bellatera, Barcelona, Spain
| | | | - Sylvia M Draper
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
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4
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Photophysical, electrochemical, and DFT studies of the novel azacrown-bridged dinuclear ruthenium dye sensitizers for solar cells. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.114106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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5
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Jacques A, Auvray T, Bevernaegie R, Loiseau F, Cibian M, Hanan GS, Kirsch-De Mesmaeker A, Elias B. Proton sensitive charge-transfer excited states in bis-terdentate cyclometalated Ir(III) complexes: Spectroscopic and theoretical investigation. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.10.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Cook AR, Valášek M, Funston AM, Poliakov P, Michl J, Miller JR. p-Carborane Conjugation in Radical Anions of Cage–Cage and Cage–Phenyl Compounds. J Phys Chem A 2018; 122:798-810. [DOI: 10.1021/acs.jpca.7b10885] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew R. Cook
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Michal Valášek
- Institute
of Organic Chemistry and Biochemistry, ASCR, Prague 6 16610, Czech Republic
| | - Alison M. Funston
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Pavel Poliakov
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Josef Michl
- Institute
of Organic Chemistry and Biochemistry, ASCR, Prague 6 16610, Czech Republic
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - John R. Miller
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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Bevernaegie R, Marcélis L, Moreno-Betancourt A, Laramée-Milette B, Hanan GS, Loiseau F, Sliwa M, Elias B. Ultrafast charge transfer excited state dynamics in trifluoromethyl-substituted iridium(iii) complexes. Phys Chem Chem Phys 2018; 20:27256-27260. [DOI: 10.1039/c8cp04265a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ultrafast spectroscopic studies on the excited state interplay in trifluoromethyl-substituted iridium(iii) complexes.
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Affiliation(s)
- Robin Bevernaegie
- Université catholique de Louvain (UCL)
- Institut de la Matière Condensée et des Nanosciences (IMCN)
- B-1348 Louvain-la-Neuve
- Belgium
| | - Lionel Marcélis
- Université catholique de Louvain (UCL)
- Institut de la Matière Condensée et des Nanosciences (IMCN)
- B-1348 Louvain-la-Neuve
- Belgium
| | | | | | - Garry S. Hanan
- Département de Chimie
- Université de Montréal, Montréal
- Québec
- Canada
| | - Frédérique Loiseau
- Département de Chimie Moléculaire
- Université Grenoble-Alpes
- CNRS UMR 5250
- BP53 38041 Grenoble
- France
| | - Michel Sliwa
- Université de Lille
- CNRS
- UMR 8516
- LASIR
- Laboratoire de Spectrochimie Infrarouge et Raman
| | - Benjamin Elias
- Université catholique de Louvain (UCL)
- Institut de la Matière Condensée et des Nanosciences (IMCN)
- B-1348 Louvain-la-Neuve
- Belgium
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8
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Wang Z, Wang T, Zhang C, Humphrey MG. Efficient crystallization-induced emission in fluorenyl-tethered carboranes. Phys Chem Chem Phys 2017; 19:12928-12935. [DOI: 10.1039/c7cp02118f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
(Aryl)(fluorenyl)-difunctionalized o-carboranes exhibit high quantum efficiency crystallization-induced emission; the origin of the CIE was rationalized from structural and theoretical studies.
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Affiliation(s)
- Zhaojin Wang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Tianyu Wang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chi Zhang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Mark G. Humphrey
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
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9
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Wang HQ, Wang L, Li RR, Ye JT, Chen ZZ, Chen H, Qiu YQ, Xie HM. Second-Order Nonlinear Optical Properties of Carboranylated Square-Planar Pt(II) Zwitterionic Complexes: One-/Two-Dimensional Difference and Substituent Effect. J Phys Chem A 2016; 120:9330-9340. [DOI: 10.1021/acs.jpca.6b09797] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hong-Qiang Wang
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - Li Wang
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - Rong-Rong Li
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - Jin-Ting Ye
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - Zhen-Zhen Chen
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - He Chen
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - Yong-Qing Qiu
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
| | - Hai-Ming Xie
- Institute of Functional Material Chemistry, Faculty of Chemistry, and ‡National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People’s Republic of China
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Abstract
In recent times, luminescent materials with tunable emission properties have found applications in almost all aspects of modern material sciences. Any discussion on the recent developments in luminescent materials would be incomplete if one does not account for the versatile photophysical features of boron containing compounds. Apart from triarylboranes and tetra-coordinate borate dyes, luminescent materials consisting of boron clusters have also found immense interest in recent times. Recent studies have unveiled the opportunities hidden within boranes, carboranes and metalloboranes, etc. as active constituents of luminescent materials. From simple illustrations of luminescence, to advanced applications in LASERs, OLEDs and bioimaging, etc., the unique features of such compounds and their promising versatility have already been established. In this review, recent revelations about the excellent photophysical properties of such materials are discussed.
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Affiliation(s)
- Sanjoy Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India.
| | - Pakkirisamy Thilagar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India.
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11
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Böhling L, Brockhinke A, Kahlert J, Weber L, Harder RA, Yufit DS, Howard JAK, MacBride JAH, Fox MA. Substituent Effects on the Fluorescence Properties ofortho-Carboranes: Unusual Emission Behaviour inC-(2′-Pyridyl)-ortho-carboranes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501284] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Shlyakhtina NI, Safronov AV, Sevryugina YV, Jalisatgi SS, Hawthorne MF. Synthesis, characterization, and preliminary fluorescence study of a mixed-ligand bis(dicarbollyl)nickel complex bearing a tryptophan-BODIPY FRET couple. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.04.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Bokarev SI, Bokareva OS, Kühn O. A theoretical perspective on charge transfer in photocatalysis. The example of Ir-based systems. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.12.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Rommel SA, Sorsche D, Rockstroh N, Heinemann FW, Kübel J, Wächtler M, Dietzek B, Rau S. Protonation-Dependent Luminescence of an Iridium(III) Bibenzimidazole Chromophore. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500234] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Scheerer S, Rotthowe N, Abdel-Rahman OS, He X, Rigaut S, Kvapilová H, Záliš S, Winter RF. Vinyl Ruthenium-Modified Biphenyl and 2,2′-Bipyridines. Inorg Chem 2015; 54:3387-402. [DOI: 10.1021/ic503075e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Stefan Scheerer
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
| | - Nils Rotthowe
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
| | - Obadah S. Abdel-Rahman
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
| | - Xiaoyan He
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, F-35042, Rennes Cedex, France
| | - Stéphane Rigaut
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, F-35042, Rennes Cedex, France
| | - Hana Kvapilová
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Stanislav Záliš
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Rainer F. Winter
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
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16
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Liu L, Guo S, Ma J, Xu K, Zhao J, Zhang T. Broadband Visible-Light-Harvestingtrans-Bis(alkylphosphine) Platinum(II)-Alkynyl Complexes with Singlet Energy Transfer between BODIPY and Naphthalene Diimide Ligands. Chemistry 2014; 20:14282-95. [DOI: 10.1002/chem.201403780] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Indexed: 12/17/2022]
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17
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Cai JG, Yu ZT, Yuan YJ, Li F, Zou ZG. Dinuclear Iridium(III) Complexes Containing Bibenzimidazole and Their Application to Water Photoreduction. ACS Catal 2014. [DOI: 10.1021/cs500296s] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jian-Guang Cai
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
- School
of Chemical Engineering, Nanjing University of Science and Technology, No. 200, Xiaolingwei Street, Nanjing, Jiangsu 210094, P. R. China
| | - Zhen-Tao Yu
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Yong-Jun Yuan
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Feng Li
- School
of Chemical Engineering, Nanjing University of Science and Technology, No. 200, Xiaolingwei Street, Nanjing, Jiangsu 210094, P. R. China
| | - Zhi-Gang Zou
- National
Laboratory for Infrared Physics, Chinese Academy of Sciences; Eco-Materials
and Renewable Energy Research Center, Department of Materials Science
and Engineering, Nanjing University, Kunshan Innovation Institute of Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu 210093, P. R. China
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Zhu L, Lv W, Liu S, Yan H, Zhao Q, Huang W. Carborane enhanced two-photon absorption of tribranched fluorophores for fluorescence microscopy imaging. Chem Commun (Camb) 2013; 49:10638-40. [DOI: 10.1039/c3cc46276e] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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