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Kumari S, Nehra M, Jain S, Dilbaghi N, Chaudhary GR, Kim KH, Kumar S. Metallosurfactant aggregates: Structures, properties, and potentials for multifarious applications. Adv Colloid Interface Sci 2024; 323:103065. [PMID: 38091690 DOI: 10.1016/j.cis.2023.103065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 01/13/2024]
Abstract
Metallosurfactants offer important scientific and technological advances due to their novel interfacial properties. As a special class of structures formed by the integration of metal ions into amphiphilic surfactant molecules, these metal-based amphiphilic molecules possess both organometallic and surface chemistries. This review critically examines the structural transitions of metallosurfactants from micelle to vesicle upon metal coordination. The properties of a metallosurfactant can be changed by tuning the coordination between the metal ions and surfactants. The self-assembled behavior of surfactants can be controlled by selecting transition-metal ions that enhance their catalytic efficiency in environmental applications by applying a hydrogen evolution reaction or oxygen evolution reaction. We present the different scattering techniques available to examine the properties of metallosurfactants (e.g., size, shape, structure, and aggregation behavior). The utility of metallosurfactants in catalysis, the synthesis of nanoparticles, and biomedical applications (involving diagnostics and therapeutics) is also explored.
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Affiliation(s)
- Sonam Kumari
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University Chandigarh, 160014, India; Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India
| | - Monika Nehra
- Department of Mechanical Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
| | - Shikha Jain
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University Chandigarh, 160014, India
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Sandeep Kumar
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India; Physics Department, Punjab Engineering College (Deemed to be University), Chandigarh 160012, India.
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2
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Schreier MR, Pfund B, Steffen DM, Wenger OS. Photocatalytic Regeneration of a Nicotinamide Adenine Nucleotide Mimic with Water-Soluble Iridium(III) Complexes. Inorg Chem 2023; 62:7636-7643. [PMID: 36731131 DOI: 10.1021/acs.inorgchem.2c03100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nicotinamide adenine nucleotide (NADH) is involved in many biologically relevant redox reactions, and the photochemical regeneration of its oxidized form (NAD+) under physiological conditions is of interest for combined photo- and biocatalysis. Here, we demonstrate that tri-anionic, water-soluble variants of typically very lipophilic iridium(III) complexes can photo-catalyze the reduction of an NAD+ mimic in a comparatively efficient manner. In combination with a well-known rhodium co-catalyst to facilitate regioselective reactions, these iridium(III) photo-reductants outcompete the commonly used [Ru(bpy)3]2+ (bpy = 2,2'-bipyridine) photosensitizer in water by up to 1 order of magnitude in turnover frequency. This improved reactivity is attributable to the strong excited-state electron donor properties and the good chemical robustness of the tri-anionic iridium(III) sensitizers, combined with their favorable Coulombic interaction with the di-cationic rhodium co-catalyst. Our findings seem relevant in the greater context of photobiocatalysis, for which access to strong, efficient, and robust photoreductants with good water solubility can be essential.
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Affiliation(s)
- Mirjam R Schreier
- Department of Chemistry, University of Basel, Street Johanns-Ring 19, 4056 Basel, Switzerland.,National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
| | - Björn Pfund
- Department of Chemistry, University of Basel, Street Johanns-Ring 19, 4056 Basel, Switzerland
| | - Debora M Steffen
- Department of Chemistry, University of Basel, Street Johanns-Ring 19, 4056 Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, Street Johanns-Ring 19, 4056 Basel, Switzerland.,National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
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3
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Potocny AM, Phelan BT, Sprague-Klein EA, Mara MW, Tiede DM, Chen LX, Mulfort KL. Harnessing Intermolecular Interactions to Promote Long-Lived Photoinduced Charge Separation from Copper Phenanthroline Chromophores. Inorg Chem 2022; 61:19119-19133. [DOI: 10.1021/acs.inorgchem.2c02648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Andrea M. Potocny
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
| | - Brian T. Phelan
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
| | - Emily A. Sprague-Klein
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
| | - Michael W. Mara
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
| | - David M. Tiede
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
| | - Lin X. Chen
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois60208, United States
| | - Karen L. Mulfort
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois60439, United States
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4
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Schreier MR, Guo X, Pfund B, Okamoto Y, Ward TR, Kerzig C, Wenger OS. Water-Soluble Tris(cyclometalated) Iridium(III) Complexes for Aqueous Electron and Energy Transfer Photochemistry. Acc Chem Res 2022; 55:1290-1300. [PMID: 35414170 PMCID: PMC9069695 DOI: 10.1021/acs.accounts.2c00075] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
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Cyclometalated iridium(III) complexes are frequently employed in
organic light emitting diodes, and they are popular photocatalysts
for solar energy conversion and synthetic organic chemistry. They
luminesce from redox-active excited states that can have high triplet
energies and long lifetimes, making them well suited for energy transfer
and photoredox catalysis. Homoleptic tris(cyclometalated) iridium(III)
complexes are typically very hydrophobic and do not dissolve well
in polar solvents, somewhat limiting their application scope. We developed
a family of water-soluble sulfonate-decorated variants with tailored
redox potentials and excited-state energies to address several key
challenges in aqueous photochemistry. First, we aimed at combining
enzyme with photoredox catalysis to
synthesize enantioenriched products in a cyclic reaction network.
Since the employed biocatalyst operates best in aqueous solution,
a water-soluble photocatalyst was needed. A new tris(cyclometalated)
iridium(III) complex provided enough reducing power for the photochemical
reduction of imines to racemic mixtures of amines and furthermore
was compatible with monoamine oxidase (MAO-N-9), which deracemized
this mixture through a kinetic resolution of the racemic amine via
oxidation to the corresponding imine. This process led to the accumulation
of the unreactive amine enantiomer over time. In subsequent studies,
we discovered that the same iridium(III) complex photoionizes under
intense irradiation to give hydrated electrons as a result of consecutive
two-photon excitation. With visible light as energy input, hydrated
electrons become available in a catalytic fashion, thereby allowing
the comparatively mild reduction of substrates that would typically
only be reactive under harsher conditions. Finally, we became interested
in photochemical upconversion in aqueous solution, for which it was
desirable to obtain water-soluble iridium(III) compounds with very
high triplet excited-state energies. This goal was achieved through
improved ligand design and ultimately enabled sensitized triplet–triplet
annihilation upconversion unusually far into the ultraviolet spectral
range. Studies of photoredox catalysis, energy transfer catalysis,
and
photochemical upconversion typically rely on the use of organic solvents.
Water could potentially be an attractive alternative in many cases,
but photocatalyst development lags somewhat behind for aqueous solution
compared to organic solvent. The purpose of this Account is to provide
an overview of the breadth of new research perspectives that emerged
from the development of water-soluble fac-[Ir(ppy)]3 complexes (ppy = 2-phenylpyridine) with sulfonated ligands.
We hope to inspire the use of some of these or related coordination
compounds in aqueous photochemistry and to stimulate further conceptual
developments at the interfaces of coordination chemistry, photophysics,
biocatalysis, and sustainable chemistry.
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Affiliation(s)
- Mirjam R. Schreier
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
- National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
| | - Xingwei Guo
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
- National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
| | - Björn Pfund
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Yasunori Okamoto
- National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4002 Basel, Switzerland
| | - Thomas R. Ward
- National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4002 Basel, Switzerland
| | - Christoph Kerzig
- 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
- National Competence Center in Research, Molecular Systems Engineering, 4002 Basel, Switzerland
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5
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Bissessar D, Egly J, Achard T, Steffanut P, Mauro M, Bellemin-Laponnaz S. A stable and photoreactive copper iodide cubane suitable for direct post‐functionalization. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Damien Bissessar
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | - Julien Egly
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | - Thierry Achard
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | | | - Matteo Mauro
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
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6
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Babak MV, Le Faouder P, Trivelli X, Venkatesan G, Bezzubov SI, Kajjout M, Gushchin AL, Hanif M, Poizat O, Vezin H, Rolando C. Heteroleptic Ruthenium(II) Complexes with Bathophenanthroline and Bathophenanthroline Disulfonate Disodium Salt as Fluorescent Dyes for In-Gel Protein Staining. Inorg Chem 2020; 59:4527-4535. [DOI: 10.1021/acs.inorgchem.9b03679] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maria V. Babak
- Univ. Lille, CNRS, USR 3290, MSAP, Miniaturisation pour la Synthèse l’Analyse et la Protèomique, F-59 000 Lille, France
| | - Pauline Le Faouder
- Univ. Lille, CNRS, USR 3290, MSAP, Miniaturisation pour la Synthèse l’Analyse et la Protèomique, F-59 000 Lille, France
| | - Xavier Trivelli
- Univ. Lille, CNRS, INRA, Centrale Lille, ENSCL, Univ. Artois, FR 2638 – IMEC - Institut Michel-Eugène Chevreul, F-59000 Lille, France
| | - Gopalakrishnan Venkatesan
- Department of Pharmacy, National University of Singapore, Lower Kent Ridge Road, 18 Science Drive 2, Singapore 119260
| | - Stanislav I. Bezzubov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow 119991, Russia
| | - Mohammed Kajjout
- Univ. Lille, CNRS, USR 3290, MSAP, Miniaturisation pour la Synthèse l’Analyse et la Protèomique, F-59 000 Lille, France
| | - Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogov Street, 630090 Novosibirsk, Russia
| | - Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Olivier Poizat
- Univ. Lille, CNRS, UMR 8516 - LASIRe - Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l’Environnement, F-59000 Lille, France
| | - Hervé Vezin
- Univ. Lille, CNRS, UMR 8516 - LASIRe - Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l’Environnement, F-59000 Lille, France
| | - Christian Rolando
- Univ. Lille, CNRS, USR 3290, MSAP, Miniaturisation pour la Synthèse l’Analyse et la Protèomique, F-59 000 Lille, France
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7
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Darmawan N, Sambri L, Daniliuc CG, De Cola L. Blue-emitting bolaamphiphilic zwitterionic iridium(iii) complex. Dalton Trans 2019; 48:3664-3670. [PMID: 30768096 DOI: 10.1039/c8dt04833a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aggregation induced emission is a very interesting phenomenon that recently has attracted a lot of interest. Most of the examples deal with organic molecules or flat metal complexes. Here we demonstrate that, by design, even iridium compounds can display this process without shifting the emission energy. In order to enhance the aggregation properties we have focussed on amphiphilic complexes. We report the synthesis and photophysical characterisation of a blue-emitting bolaamphiphilic zwitterionic Ir(iii) complex and an analogous cationic amphiphilic compound, used as a reference. The bolaamphiphile exhibited blue (λmax = 450 nm) emission in dilute, deaerated solution with a photoluminescence quantum yield (PLQY) of 22%, similar to the related cationic amphiphilic complex. The bolaamphiphile displayed significant emission enhancement in the solid state, with an emission quantum yield that reach 52%. Interestingly, the emission of the cationic analogue suffers from aggregation quenching in the solid state, (PLQY = 3%) as is common for these type of complexes. A correlation between the photophysical data and the arrangement in the solid state is discussed.
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Affiliation(s)
- Noviyan Darmawan
- Institut de Science et Ingénierie Supramoléculaires (ISIS - UMR 7006), Université de Strasbourg & CNRS., 8 Rue Gaspard Monge, 67000 Strasbourg, France.
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8
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Sebata S, Takizawa SY, Ikuta N, Murata S. Photofunctions of iridium(iii) complexes in vesicles: long-lived excited states and visible-light sensitization for hydrogen evolution in aqueous solution. Dalton Trans 2019; 48:14914-14925. [DOI: 10.1039/c9dt03144h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Utilization of DPPC vesicles allows water-insoluble photoactive Ir(iii) complexes to be dispersed in bulk aqueous solution.
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Affiliation(s)
- Shinogu Sebata
- Department of Basic Science
- Graduate School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
| | - Shin-ya Takizawa
- Department of Basic Science
- Graduate School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
| | - Naoya Ikuta
- Department of Basic Science
- Graduate School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
| | - Shigeru Murata
- Department of Basic Science
- Graduate School of Arts and Sciences
- The University of Tokyo
- Tokyo 153-8902
- Japan
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9
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Deaton JC, Taliaferro CM, Pitman CL, Czerwieniec R, Jakubikova E, Miller AJM, Castellano FN. Excited-State Switching between Ligand-Centered and Charge Transfer Modulated by Metal-Carbon Bonds in Cyclopentadienyl Iridium Complexes. Inorg Chem 2018; 57:15445-15461. [PMID: 30516977 DOI: 10.1021/acs.inorgchem.8b02753] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Three series of pentamethylcyclopentadienyl (Cp*) Ir(III) complexes with different bidentate ligands were synthesized and structurally characterized, [Cp*Ir(tpy)L] n+ (tpy = 2-tolylpyridinato; n = 0 or 1), [Cp*Ir(piq)L] n+ (piq = 1-phenylisoquinolinato; n = 0 or 1), and [Cp*Ir(bpy)L] m+ (bpy = 2,2'-bipyridine; m = 1 or 2), featuring a range of monodentate carbon-donor ligands within each series [L = 2,6-dimethylphenylisocyanide; 3,5-dimethylimidazol-2-ylidene (NHC); methyl)]. The spectroscopic and photophysical properties of these molecules and those of the photocatalyst [Cp*Ir(bpy)H]+ were examined to establish electronic structure-photophysical property relationships that engender productive photochemical reactivity of this hydride and its methyl analogue. The Ir(III) chromophores containing ancillary CNAr ligands exhibited features anticipated for predominantly ligand-centered (LC) excited states, and analogues bearing the NHC ancillary exhibited properties consistent with LC excited states containing a small admixture of metal-to-ligand charge-transfer (MLCT) character. However, the molecules featuring anionic and strongly σ-donating methyl or hydride ligands exhibited photophysical properties consistent with a high degree of CT character. Density functional theory calculations suggest that the lowest energy triplet states in these complexes are composed of a mixture of MLCT and ligand-to-ligand CT originating from both the Cp* and methyl or hydride ancillary ligands. The high degree of CT character in the triplet excited states of methyliridium complexes bearing C^N-cyclometalated ligands offer a striking contrast to the photophysical properties of pseudo-octahedral structures fac-Ir(C^N)3 or Ir(C^N)2(acac) that have lowest-energy triplet excited states characterized as primarily LC character with a more moderate MLCT admixture.
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Affiliation(s)
- Joseph C Deaton
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695-8204 , United States
| | - Chelsea M Taliaferro
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695-8204 , United States
| | - Catherine L Pitman
- Department of Chemistry , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599-3290 , United States
| | - Rafał Czerwieniec
- Institut für Physikalische und Theoretische Chemie , Universität Regensburg , Universitätstrasse 31 , D-93040 Regensburg , Germany
| | - Elena Jakubikova
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695-8204 , United States
| | - Alexander J M Miller
- Department of Chemistry , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599-3290 , United States
| | - Felix N Castellano
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695-8204 , United States
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10
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Unravelling the aggregation induced emission enhancement in Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) complex. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.09.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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McGoorty M, Singh A, Deaton TA, Peterson B, Taliaferro CM, Yingling YG, Castellano FN. Bathophenanthroline Disulfonate Ligand-Induced Self-Assembly of Ir(III) Complexes in Water: An Intriguing Class of Photoluminescent Soft Materials. ACS OMEGA 2018; 3:14027-14038. [PMID: 31458098 PMCID: PMC6645117 DOI: 10.1021/acsomega.8b02034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/11/2018] [Indexed: 06/10/2023]
Abstract
Strong evidence of concentration-induced and dissolved electrolyte-induced chromophore aggregation has been universally observed in numerous water soluble bis-cyclometalated Ir(III) photosensitizers bearing the sulfonated diimine ligands bathophenanthroline disulfonate and bathocuproine disulfonate. This new class of aqueous-based soft materials was highly photoluminescent in their aggregated state where detailed spectroscopic investigations of this phenomenon revealed significant blue shifts of their respective photoluminescence emission spectra with concomitant increases in excited-state lifetimes and quantum yields initiating even at micromolar chromophore concentrations in water or upon the addition of a strong electrolyte. A combination of nanoscale particle characterization techniques, static and dynamic photoluminescence spectroscopic studies, along with atomistic molecular dynamics (MD) simulations of these soft materials suggests the formation of small, heterogeneous nanoaggregate structures, wherein the sulfonated diimine ancillary ligand serves as a pro-aggregating subunit in all instances. Importantly, the experimental and MD findings suggest the likelihood of discovering similar aqueous aggregation phenomena occurring in all transition-metal complexes bearing these water-solubilizing diimine ligands.
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Affiliation(s)
- Michelle
M. McGoorty
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Abhishek Singh
- Department
of Materials Science and Engineering, North
Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Thomas A. Deaton
- Department
of Materials Science and Engineering, North
Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Benjamin Peterson
- Department
of Materials Science and Engineering, North
Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Chelsea M. Taliaferro
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Yaroslava G. Yingling
- Department
of Materials Science and Engineering, North
Carolina State University, Raleigh, North Carolina 27695-7907, United States
| | - Felix N. Castellano
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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12
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Huang C, Ran G, Zhao Y, Wang C, Song Q. Synthesis and application of a water-soluble phosphorescent iridium complex as turn-on sensing material for human serum albumin. Dalton Trans 2018; 47:2330-2336. [PMID: 29367989 DOI: 10.1039/c7dt04676f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel water-soluble cyclometallated iridium complex [Ir(pq-COOH)2FDS]- (pq-COOH = 2-phenylquinoline-4-carboxylic acid, FDS = 3-(2-pyridyl)-5,6-bis(4-sulfophenyl)-1,2,4-triazine dianions) (abbreviated as Ir) was synthesized and its phosphorescent property was comprehensively studied. It was found that the complex exhibited strong phosphorescence, which peaked at 634 nm in neutral conditions (maximized at pH 8.0). Its phosphorescence decreased with an increase in acidity of the aqueous solution. At pH 2.0, the quenched phosphorescence could be resumed upon the addition of human serum albumin (HSA) because of the hydrophobic and electrostatic interactions between HSA and Ir. Based on this phenomenon, a "turn on" type phosphorescence probe was developed for the detection of HSA. Under optimal conditions, a wide calibration range of 1-280 nM was obtained with a limit of detection of 0.8 nM for HSA. The phosphorescence probe was successfully used for the determination of HSA in blood serum and urine samples.
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Affiliation(s)
- Chao Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
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13
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Affiliation(s)
- Matteo Mauro
- Université de Strasbourg; CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504; 23 rue du Loess 67000 Strasbourg France
| | - Cristina Cebrián
- Université de Lorraine; CNRS, L2CM; 1 Boulevard François Arago - BP 95823 F-57000 Metz France
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14
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Deaton JC, Chakraborty A, Czerwieniec R, Yersin H, Castellano FN. Temperature dependence of photophysical properties of a dinuclear C^N-cyclometalated Pt(ii) complex with an intimate Pt–Pt contact. Zero-field splitting and sub-state decay rates of the lowest triplet. Phys Chem Chem Phys 2018; 20:25096-25104. [DOI: 10.1039/c8cp05213a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A dinuclear Pt(ii) complexes exhibits an unusually large zero field splitting in its metal–metal-to-ligand charge transfer triplet excited state.
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Affiliation(s)
- Joseph C. Deaton
- Department of Chemistry
- North Carolina State University
- Raleigh
- USA
| | | | - Rafal Czerwieniec
- Institut für Physikalische Chemie
- Universität Regensburg
- D-93040 Regensburg
- Germany
| | - Hartmut Yersin
- Institut für Physikalische Chemie
- Universität Regensburg
- D-93040 Regensburg
- Germany
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15
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Audi H, Azar DF, Mahjoub F, Farhat S, El Masri Z, El-Sibai M, Abi-Habib RJ, Khnayzer RS. Cytotoxicity modulation of ruthenium(II) tris-bathophenanthroline complexes with systematically varied charge. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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