1
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Capulín Flores L, Paul LA, Siewert I, Havenith R, Zúñiga-Villarreal N, Otten E. Neutral Formazan Ligands Bound to the fac-(CO) 3Re(I) Fragment: Structural, Spectroscopic, and Computational Studies. Inorg Chem 2022; 61:13532-13542. [PMID: 35969867 PMCID: PMC9438031 DOI: 10.1021/acs.inorgchem.2c02168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal complexes with ligands that coordinate via the nitrogen atom of azo (N═N) or imino (C═N) groups are of interest due to their π-acceptor properties and redox-active nature, which leads to interesting (opto)electronic properties and reactivity. Here, we describe the synthesis and characterization of rhenium(I) tricarbonyl complexes with neutral N,N-bidentate formazans, which possess both N═N and C═N fragments within the ligand backbone (Ar1-NH-N═C(R3)-N═N-Ar5). The compounds were synthesized by reacting equimolar amounts of [ReBr(CO)5] and the corresponding neutral formazan. X-ray crystallographic and spectroscopic (IR, NMR) characterization confirmed the generation of formazan-type species with the structure fac-[ReBr(CO)3(κ2-N2,N4(Ar1-N1H-N2═C(R3)-N3═N4-Ar5))]. The formazan ligand coordinates the metal center in the 'open' form, generating a five-membered chelate ring with a pendant NH arm. The electronic absorption and emission properties of these complexes are governed by the presence of low-lying π*-orbitals on the ligand as shown by DFT calculations. The high orbital mixing between the metal and ligand results in photophysical properties that contrast to those observed in fac-[ReBr(CO)3(L,L)] species with α-diimine ligands.
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Affiliation(s)
- Liliana Capulín Flores
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, 04510 México, D.F., México
| | - Lucas A Paul
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, D-37077 Göttingen, Germany
| | - Inke Siewert
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, D-37077 Göttingen, Germany
| | - Remco Havenith
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Noé Zúñiga-Villarreal
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, 04510 México, D.F., México
| | - Edwin Otten
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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2
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Schindler K, Zobi F. Anticancer and Antibiotic Rhenium Tri- and Dicarbonyl Complexes: Current Research and Future Perspectives. Molecules 2022; 27:539. [PMID: 35056856 PMCID: PMC8777860 DOI: 10.3390/molecules27020539] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/23/2021] [Accepted: 01/12/2022] [Indexed: 12/20/2022] Open
Abstract
Organometallic compounds are increasingly recognized as promising anticancer and antibiotic drug candidates. Among the transition metal ions investigated for these purposes, rhenium occupies a special role. Its tri- and dicarbonyl complexes, in particular, attract continuous attention due to their relative ease of preparation, stability and unique photophysical and luminescent properties that allow the combination of diagnostic and therapeutic purposes, thereby permitting, e.g., molecules to be tracked within cells. In this review, we discuss the anticancer and antibiotic properties of rhenium tri- and dicarbonyl complexes described in the last seven years, mainly in terms of their structural variations and in vitro efficacy. Given the abundant literature available, the focus is initially directed on tricarbonyl complexes of rhenium. Dicarbonyl species of the metal ion, which are slowly gaining momentum, are discussed in the second part in terms of future perspective for the possible developments in the field.
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Affiliation(s)
| | - Fabio Zobi
- Department of Chemistry, Fribourg University, Chemin du Musée 9, 1700 Fribourg, Switzerland;
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3
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Wu C, Kisel KS, Thangavel MK, Chen Y, Chang K, Tsai M, Chu C, Shen Y, Wu P, Zhang Z, Liu T, Jänis J, Grachova EV, Shakirova JR, Tunik SP, Koshevoy IO, Chou P. Functionalizing Collagen with Vessel-Penetrating Two-Photon Phosphorescence Probes: A New In Vivo Strategy to Map Oxygen Concentration in Tumor Microenvironment and Tissue Ischemia. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102788. [PMID: 34414696 PMCID: PMC8529487 DOI: 10.1002/advs.202102788] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Indexed: 06/13/2023]
Abstract
The encapsulation and/or surface modification can stabilize and protect the phosphorescence bio-probes but impede their intravenous delivery across biological barriers. Here, a new class of biocompatible rhenium (ReI ) diimine carbonyl complexes is developed, which can efficaciously permeate normal vessel walls and then functionalize the extravascular collagen matrixes as in situ oxygen sensor. Without protective agents, ReI -diimine complex already exhibits excellent emission yield (34%, λem = 583 nm) and large two-photon absorption cross-sections (σ2 = 300 GM @ 800 nm) in water (pH 7.4). After extravasation, remarkably, the collagen-bound probes further enhanced their excitation efficiency by increasing the deoxygenated lifetime from 4.0 to 7.5 µs, paving a way to visualize tumor hypoxia and tissue ischemia in vivo. The post-extravasation functionalization of extracellular matrixes demonstrates a new methodology for biomaterial-empowered phosphorescence sensing and imaging.
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Affiliation(s)
- Cheng‐Ham Wu
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Kristina S. Kisel
- Department of ChemistryUniversity of Eastern FinlandJoensuu80101Finland
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | | | - Yi‐Ting Chen
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Kai‐Hsin Chang
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Ming‐Rung Tsai
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Chia‐Yu Chu
- Department of DermatologyNational Taiwan University Hospital and National Taiwan University College of MedicineTaipei10002Taiwan
| | - Yu‐Fang Shen
- Department of Bioinformatics and Medical EngineeringAsia UniversityTaichung City41354Taiwan
- 3D Printing Medical Research InstituteAsia UniversityTaichung City41354Taiwan
| | - Pei‐Chun Wu
- Institute of Translational Medicine, Faculty of Health SciencesMinistry of Education Frontiers Science Center for Precision OncologyUniversity of MacauTaipaMacau999078China
| | - Zhiming Zhang
- Institute of Translational Medicine, Faculty of Health SciencesMinistry of Education Frontiers Science Center for Precision OncologyUniversity of MacauTaipaMacau999078China
| | - Tzu‐Ming Liu
- Institute of Translational Medicine, Faculty of Health SciencesMinistry of Education Frontiers Science Center for Precision OncologyUniversity of MacauTaipaMacau999078China
| | - Janne Jänis
- Department of ChemistryUniversity of Eastern FinlandJoensuu80101Finland
| | - Elena V. Grachova
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | - Julia R. Shakirova
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | - Sergey P. Tunik
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | - Igor O. Koshevoy
- Department of ChemistryUniversity of Eastern FinlandJoensuu80101Finland
| | - Pi‐Tai Chou
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
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4
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Shimoda Y, Miyata K, Funaki M, Ehara T, Morimoto T, Nozawa S, Adachi SI, Ishitani O, Onda K. Determining Excited-State Structures and Photophysical Properties in Phenylphosphine Rhenium(I) Diimine Biscarbonyl Complexes Using Time-Resolved Infrared and X-ray Absorption Spectroscopies. Inorg Chem 2021; 60:7773-7784. [PMID: 33971089 DOI: 10.1021/acs.inorgchem.1c00146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have explored the structural factors on the photophysical properties in two rhenium(I) diimine complexes in acetonitrile solution, cis,trans-[Re(dmb)(CO)2(PPh2Et)2]+ (Et(2,2)) and cis,trans-[Re(dmb)(CO)2(PPh3)2]+ ((3,3)) (dmb = 4,4'-dimethyl-2,2'-bipyridine, Ph = phenyl, Et = ethyl) using the combination method of time-resolved infrared spectroscopy, time-resolved extended X-ray absorption fine structure, and quantum chemical calculations. The difference between these complexes is the number of phenyl groups in the phosphine ligand, and this only indirectly affects the central Re(I). Despite this minor difference, the complexes exhibit large differences in emission wavelength and excited-state lifetime. Upon photoexcitation, the bond length of Re-P and angle of P-Re-P are significantly changed in both complexes, while the phenyl groups are largely rotated by ∼20° only in (3,3). In contrast, there is little change in charge distribution on the phenyl groups when Re to dmb charge transfer occurs upon photoexcitation. We concluded that the instability from steric effects of phenyl groups and diimine leads to a smaller Stokes shift of the lowest excited triplet state (T1) in (3,3). The large structural change between the ground and excited states causes the longer lifetime of T1 in (3,3).
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Affiliation(s)
- Yuushi Shimoda
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kiyoshi Miyata
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masataka Funaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Takumi Ehara
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Tatsuki Morimoto
- Department of Applied Chemistry, School of Engineering, Tokyo University of Technology, Katakuramachi, Hachioji, Tokyo 192-0982, Japan
| | - Shunsuke Nozawa
- Photon Factory, Institute of Materials Structure Sciences, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Shin-Ichi Adachi
- Photon Factory, Institute of Materials Structure Sciences, High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Osamu Ishitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Ken Onda
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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5
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Yamazaki Y, Rohacova J, Koike K, Ishitani O. Synthesis and Light-Harvesting Functions of Ring-Shaped Re(I) Trinuclear Complexes Connected with an Emissive Ru(II) Complex. JACS AU 2021; 1:294-307. [PMID: 34467294 PMCID: PMC8395681 DOI: 10.1021/jacsau.0c00114] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Indexed: 06/13/2023]
Abstract
Ring-shaped Re(I) multinuclear complexes (Re(I) rings) in which Re(I)-diimine-biscarbonyl complexes are connected to each other through bisphosphine bridging ligands exhibit very suitable photophysical and electrochemical properties as redox photosensitizers. We developed two approaches for synthesizing Re(I) rings connected with a Ru(II) complex: cyclization of a linear Re(I) trinuclear complex connected with a Ru(II) complex and Mizoroki-Heck coupling of a ring-shaped Re(I) trinuclear complex and a Ru(II) complex. Photophysical measurements of these heteromultinuclear complexes and comparisons with their model complexes indicated that they exhibit efficient light-harvesting abilities, where energy transfer from the excited ring-shaped Re(I) trinuclear complex unit to the Ru(II) complex unit proceeds efficiently.
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Affiliation(s)
- Yasuomi Yamazaki
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
- Department
of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kichijoji-Kitamachi, Musashino-shi, Tokyo 180-8633, Japan
| | - Jana Rohacova
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kazuhide Koike
- National
Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Osamu Ishitani
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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6
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Schindler K, Crochet A, Zobi F. Aerobically stable and substitutionally labile α-diimine rhenium dicarbonyl complexes. RSC Adv 2021; 11:7511-7520. [PMID: 35423250 PMCID: PMC8694950 DOI: 10.1039/d1ra00514f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 02/05/2021] [Indexed: 12/11/2022] Open
Abstract
New synthetic routes to aerobically stable and substitutionally labile α-diimine rhenium(i) dicarbonyl complexes are described. The molecules are prepared in high yield from the cis–cis–trans-[Re(CO)2(tBu2bpy)Br2]− anion (2, where tBu2bpy is 4,4′-di-tert-butyl-2,2′-bipyridine), which can be isolated from the one electron reduction of the corresponding 17-electron complex (1). Compound 2 is stable in the solid state, but in solution it is oxidized by molecular oxygen back to 1. Replacement of a single bromide of 2 by σ-donor monodentate ligands (Ls) yields stable neutral 18-electron cis–cis–trans-[Re(CO)2(tBu2bpy)Br(L)] species. In coordinating solvents like methanol the halide is replaced giving the corresponding solvated cations. [Re(CO)2(tBu2bpy)Br(L)] species can be further reacted with Ls to prepare stable cis–cis–trans-[Re(CO)2(tBu2bpy)(L)2]+ complexes in good yield. Ligand substitution of Re(i) complexes proceeds via pentacoordinate intermediates capable of Berry pseudorotation. In addition to the cis–cis–trans-complexes, cis–cis–cis- (all cis) isomers are also formed. In particular, cis–cis–trans-[Re(CO)2(tBu2bpy)(L)2]+ complexes establish an equilibrium with all cis isomers in solution. The solid state crystal structure of nearly all molecules presented could be elucidated. The molecules adopt a slightly distorted octahedral geometry. In comparison to similar fac-[Re(CO)3]+complexes, Re(i) diacarbonyl species are characterized by a bend (ca. 7°) of the axial ligands towards the α-diimine unit. [Re(CO)2(tBu2bpy)Br2]− and [Re(CO)2(tBu2bpy)Br(L)] complexes may be considered as synthons for the preparation of a variety of new stable diamagnetic dicarbonyl rhenium cis-[Re(CO)2]+ complexes, offering a convenient entry in the chemistry of the core. New synthetic routes to aerobically stable and substitutionally labile α-diimine rhenium(i) dicarbonyl complexes offer a convenient entry in the chemistry of the cis-[Re(CO)2]+ core.![]()
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Affiliation(s)
- Kevin Schindler
- Department of Chemistry, Fribourg University Chemin Du Musée 9 1700 Fribourg Switzerland
| | - Aurélien Crochet
- Department of Chemistry, Fribourg University Chemin Du Musée 9 1700 Fribourg Switzerland
| | - Fabio Zobi
- Department of Chemistry, Fribourg University Chemin Du Musée 9 1700 Fribourg Switzerland
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7
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Fernández-Terán RJ, Sévery L. Coordination Environment Prevents Access to Intraligand Charge-Transfer States through Remote Substitution in Rhenium(I) Terpyridinedicarbonyl Complexes. Inorg Chem 2021; 60:1325-1333. [PMID: 33301310 DOI: 10.1021/acs.inorgchem.0c02914] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Six rhenium(I) κ3N-dicarbonyl complexes with 4'-(4-substituted phenyl)terpyridine ligands were evaluated in their ground and excited states. These complexes, bearing substituents of different electron-donating strengths-from CN to NMe2-were studied by a combination of transient IR (TRIR), electrochemistry, and IR spectroelectrochemistry, as well as time-dependent density functional theory (TD-DFT). They exhibit panchromatic absorption and can act as stronger photoreductants than their tricarbonyl counterparts. The ground- and excited-state potentials, absorption maxima, and lifetimes (250-750 ps) of these complexes correlate well with the Hammett σp substituent constants, showing the systematic effect of remote substitution in the ligand framework. TRIR spectroscopy allowed us to assign the lowest singlet and triplet excited states to a metal-to-ligand charge-transfer (MLCT) character. This result contrasts our previous report on analogous κ2N-tricarbonyl complexes, where remote substitution switched the character from MLCT to intraligand charge transfer. With the help of TD-DFT calculations, we dissect the geometric and electronic effects of coordination of the third pyridine, local symmetries, and increasing conjugation length. These results give valuable insights for the design of complexes with long-lived triplet excited states and enhanced absorption throughout the visible spectrum, while showcasing the boundaries of the excited-state switching strategy via remote substitution.
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Affiliation(s)
| | - Laurent Sévery
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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8
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Shakirova JR, Nayeri S, Jamali S, Porsev VV, Gurzhiy VV, Levin OV, Koshevoy IO, Tunik SP. Targeted Synthesis of NIR Luminescent Rhenium Diimine cis,trans-[Re( N N )(CO) 2 (L) 2 ] n+ Complexes Containing N-Donor Axial Ligands: Photophysical, Electrochemical, and Theoretical Studies. Chempluschem 2020; 85:2518-2527. [PMID: 33226192 DOI: 10.1002/cplu.202000597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/05/2020] [Indexed: 11/09/2022]
Abstract
The combined action of ultraviolet irradiation and microwave heating onto acetonitrile solution of [Re( N N )(CO)3 (NCMe)]OTf ( N N =phenantroline and neocuproine) afforded cis,trans-Re( N N )(CO)2 (NCMe)2 ]+ acetonitrile derivatives. Substitution of relatively labile NCMe with a series of aromatic N-donor ligands (pyridine, pyrazine, 4,4'-bipyridine, N-methyl-4,4'-bipyridine) gave a novel family of the diimine cis,trans-[Re( N N )(CO)2 (L)2 ]+ complexes. Photophysical studies of the obtained compounds in solution revealed unusually high absorption across the visible region and NIR phosphorescence with emission band maxima ranging from 711 to 805 nm. The nature of emissive excited states was studied using DFT calculations to show dominant contribution of 3 MLCT (dπ(Re)→π*( N N )) character. Electrochemical (CV and DPV) studies of the monocationic diimine complexes revealed one reduction and one oxidation wave assigned to reduction of the diimine moiety and oxidation of the rhenium center, respectively.
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Affiliation(s)
- J R Shakirova
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - S Nayeri
- Department of Chemistry, Sharif University of Technology, P.O. Box, 11155-3516, Tehran, Iran
| | - S Jamali
- Department of Chemistry, Sharif University of Technology, P.O. Box, 11155-3516, Tehran, Iran
| | - Vitaly V Porsev
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - Vladislav V Gurzhiy
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - Oleg V Levin
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - I O Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - S P Tunik
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504, St. Petersburg, Russia
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9
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Stoyanov SR, Komreddy V, Rillema DP, Moore CE, Nguyen H. Synthesis and Computational and Experimental Investigations of a para-Nicotinic Acid-Bridged Dirhenium(I) Dimer Complex. ACS OMEGA 2020; 5:12944-12954. [PMID: 32548478 PMCID: PMC7288562 DOI: 10.1021/acsomega.0c00704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
The Re(I) dimer complex, [fac(CO)3(phen)Re1-N(py)COORe2(phen)fac(CO)3]+ (py = pyridine; phen = 1,10-phenanthroline), contains two different Re(I) centers 9.3 Å apart, one with a nitrogen donor and the other with an acetate donor from the bridging isonicotinate ligand. The complexes were characterized by 1H NMR, UV-vis, fluorescence, and IR spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The absorption and emission properties of the dimer dominated by charge transfer transitions are analyzed with respect to those of the monomers, [fac(CO)3(phen)Re-N(pyCOOCH3)]+ and [fac(CO)3(phen)ReOOCCH3]. Spectral comparison of these three complexes results in the unexpected finding that the dimer emission (575 nm) occurs near that of the nicotinate-containing monomer (580 nm) rather than near the lower energy-emitting state (650 nm) of the acetate-containing monomer. Density functional theory (DFT) calculations elucidate this unusual emission behavior. The geometries of the dimer and two monomers are optimized in the singlet ground and lowest-energy triplet excited states (LLTS's) to interpret absorption and emission behaviors, respectively. The singlet excited states calculated using time-dependent DFT correlate well with the absorption spectra in the lowest-energy and other major electronic transitions. The energy gaps and low-lying singlet excited states of the dimer are close to those of the acetate-containing monomer. The lowest-energy Franck-Condon triplet excited state of the dimer arising from electronic transitions localized on the acetate moiety is unstable. The next higher Franck-Condon triplet excited state arises from long-range charge transfer transition, and its energy is close to that of the nicotinate-containing monomer. Optimization of the dimer LLTS yields a stable state based on a long-range charge transfer transition involving occupied orbitals partially localized on the bridging nicotinate moiety. The LLTS energies of the dimer and nicotinate-containing monomer are in very good agreement as are the emission energies of these complexes. The correlated spectroscopic and computational results corroborate to the understanding of charge transfer states and transitions toward the development of photosensitive compounds for photoelectrochemical solar energy conversion cells.
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Affiliation(s)
- Stanislav R. Stoyanov
- Natural
Resources Canada, CanmetENERGY in Devon, 1 Oil Patch Drive, Devon, Alberta T9G 1A8, Canada
| | - Venugopal Komreddy
- Olon
Ricerca Bioscience LLC, 7528 Auburn Road, Concord, Ohio 44077, United
States
| | - D. Paul Rillema
- Department
of Chemistry, Wichita State University, Wichita, Kansas 67260, United States
| | - Curtis E. Moore
- X-ray
Crystallography Facility, Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Huy Nguyen
- Department
of Chemistry, Wichita State University, Wichita, Kansas 67260, United States
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10
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Atallah H, Taliaferro CM, Wells KA, Castellano FN. Photophysics and ultrafast processes in rhenium(I) diimine dicarbonyls. Dalton Trans 2020; 49:11565-11576. [PMID: 32749412 DOI: 10.1039/d0dt01765e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this work, a series of nine Re(i) diimine dicarbonyl complexes of the general molecular formula cis-[Re(N^N)2(CO)2]+ (N^N are various 2,2'-bipyridine (bpy) or 1,10-phenanthroline (phen) derivatives) were prepared and spectroscopically investigated to systematically evaluate the photophysical consequences of various substituents resident on the diimine ligands. These panchromatic absorbing chromophores were structurally characterized, evaluated for their electrochemical and spectroelectrochemical properties, and investigated using static and dynamic electronic absorption, photoluminescence (PL), and infrared spectroscopy from ultrafast to supra-nanosecond time scales. The ultrafast time-resolved infrared (TRIR) analysis was further supported by electronic structure calculations which characterized the changes within the two C[triple bond, length as m-dash]O vibrational modes upon formation of the metal-to-ligand charge transfer (MLCT) excited state. The MLCT excited state decay of this series of dicarbonyl molecules appears completely consistent with energy-gap law behavior, where the nonradiative decay rate constants increase logarithmically with decreasing excited state - ground state energy separation, except in anticipated cases where the substituents were phenyl or tert-butyl.
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Affiliation(s)
- Hala Atallah
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
| | - Chelsea M Taliaferro
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
| | - Kaylee A Wells
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
| | - Felix N Castellano
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
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11
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Nayeri S, Jamali S, Pavlovskiy VV, Porsev VV, Evarestov RA, Kisel KS, Koshevoy IO, Shakirova JR, Tunik SP. A Rare Type of Rhenium(I) Diimine Complexes with Unsupported Coordinated Phosphine Oxide Ligands: Synthesis, Structural Characterization, Photophysical and Theoretical Study. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900617] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sara Nayeri
- Department of Chemistry Sharif University of Technology P.O. Box 11155‐3516 Tehran Iran
| | - Sirous Jamali
- Department of Chemistry Sharif University of Technology P.O. Box 11155‐3516 Tehran Iran
| | - Vladimir V. Pavlovskiy
- Department of Chemistry St. Petersburg State University Universitetskii pr. 26 198504 St. Petersburg Russia
| | - Vitaly V. Porsev
- Department of Chemistry St. Petersburg State University Universitetskii pr. 26 198504 St. Petersburg Russia
| | - Robert A. Evarestov
- Department of Chemistry St. Petersburg State University Universitetskii pr. 26 198504 St. Petersburg Russia
| | - Kristina S. Kisel
- Department of Chemistry St. Petersburg State University Universitetskii pr. 26 198504 St. Petersburg Russia
| | - Igor O. Koshevoy
- Department of Chemistry University of Eastern Finland 80101 Joensuu Finland
| | - Julia R. Shakirova
- Department of Chemistry St. Petersburg State University Universitetskii pr. 26 198504 St. Petersburg Russia
| | - Sergey P. Tunik
- Department of Chemistry St. Petersburg State University Universitetskii pr. 26 198504 St. Petersburg Russia
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12
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Azzarelli N, Ponnala S, Aguirre A, Dampf SJ, Davis MP, Ruggiero MT, Lopez Diaz V, Babich JW, Coogan M, Korter T, Doyle RP, Zubieta J. Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Kisel KS, Eskelinen T, Zafar W, Solomatina AI, Hirva P, Grachova EV, Tunik SP, Koshevoy IO. Chromophore-Functionalized Phenanthro-diimine Ligands and Their Re(I) Complexes. Inorg Chem 2018; 57:6349-6361. [PMID: 29749736 PMCID: PMC6150663 DOI: 10.1021/acs.inorgchem.8b00422] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Indexed: 02/07/2023]
Abstract
A series of diimine ligands has been designed on the basis of 2-pyridyl-1 H-phenanthro[9,10- d]imidazole (L1, L2). Coupling the basic motif of L1 with anthracene-containing fragments affords the bichromophore compounds L3-L5, of which L4 and L5 adopt a donor-acceptor architecture. The latter allows intramolecular charge transfer with intense absorption bands in the visible spectrum (lowest λabs 464 nm (ε = 1.2 × 104 M-1 cm-1) and 490 nm (ε = 5.2 × 104 M-1 cm-1) in CH2Cl2 for L4 and L5, respectively). L1-L5 show strong fluorescence in a fluid medium (Φem = 22-92%, λem 370-602 nm in CH2Cl2); discernible emission solvatochromism is observed for L4 and L5. In addition, the presence of pyridyl (L1-L5) and dimethylaminophenyl (L5) groups enables reversible alteration of their optical properties by means of protonation. Ligands L1-L5 were used to synthesize the corresponding [Re(CO)3X(diimine)] (X = Cl, 1-5; X = CN, 1-CN) complexes. 1 and 2 exhibit unusual dual emission of singlet and triplet parentage, which originate from independently populated 1ππ* and 3MLCT excited states. In contrast to the majority of the reported Re(I) carbonyl luminophores, complexes 3-5 display moderately intense ligand-based fluorescence from an anthracene-containing secondary chromophore and complete quenching of emission from the 3MLCT state presumably due to the triplet-triplet energy transfer (3MLCT → 3ILCT).
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Affiliation(s)
- Kristina S. Kisel
- University of Eastern
Finland, Department of Chemistry, Joensuu 80101, Finland
- St.Petersburg State University, Department of Chemistry, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Toni Eskelinen
- University of Eastern
Finland, Department of Chemistry, Joensuu 80101, Finland
| | - Waqar Zafar
- University of Eastern
Finland, Department of Chemistry, Joensuu 80101, Finland
| | - Anastasia I. Solomatina
- St.Petersburg State University, Department of Chemistry, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Pipsa Hirva
- University of Eastern
Finland, Department of Chemistry, Joensuu 80101, Finland
| | - Elena V. Grachova
- St.Petersburg State University, Department of Chemistry, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Sergey P. Tunik
- St.Petersburg State University, Department of Chemistry, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Igor O. Koshevoy
- University of Eastern
Finland, Department of Chemistry, Joensuu 80101, Finland
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14
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Kurtz DA, Brereton KR, Ruoff KP, Tang HM, Felton GAN, Miller AJM, Dempsey JL. Bathochromic Shifts in Rhenium Carbonyl Dyes Induced through Destabilization of Occupied Orbitals. Inorg Chem 2018; 57:5389-5399. [DOI: 10.1021/acs.inorgchem.8b00360] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Daniel A. Kurtz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Kelsey R. Brereton
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Kevin P. Ruoff
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Hui Min Tang
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Greg A. N. Felton
- Department of Chemistry, Eckerd College, St. Petersburg, Florida 33711, United States
| | - Alexander J. M. Miller
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Jillian L. Dempsey
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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15
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Morimoto T, Ishitani O. Modulation of the Photophysical, Photochemical, and Electrochemical Properties of Re(I) Diimine Complexes by Interligand Interactions. Acc Chem Res 2017; 50:2673-2683. [PMID: 28994292 DOI: 10.1021/acs.accounts.7b00244] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The photophysical and photochemical properties of transition metal complexes have attracted considerable attention because of their recent applications as photocatalysts in artificial photosynthesis and organic synthesis, as light emitters in electroluminescent (EL) devices, and as dyes in solar cells. The general control methods cannot be always used to obtain transition metal complexes with photochemical properties that are suitable for the above-mentioned applications. In the fields of solar energy conversion, strong metal-to-ligand charge-transfer (MLCT) absorption of redox photosensitizers and/or photocatalysts in the visible region with long wavelength is essential. However, the usual methods, i.e., introduction of electron-withdrawing groups into the electron-accepting ligand and/or weak-field ligands into the central metal, have several drawbacks, including shorter excited-state lifetime, lower emission efficiency, and lower oxidation and reduction power. Herein we describe a new method to control the photophysical, photochemical, and electrochemical properties of Re(I) diimine carbonyl complexes that have been widely used in various fields such as photocatalysts for CO2 reduction and emitters in EL devices and sensors. This method involves the introduction of interligand interactions (π-π and CH-π interactions) into the Re(I) complexes; the aromatic diimine ligand coordinating to the Re center approaches the aryl groups on the phosphine ligand or ligands at the cis position, which "compulsorily" induces a weak interaction between these aromatic groups. As a result of this interligand interaction, the Re complexes with the aromatic diimine ligand and the arylphosphine ligand(s) exhibit red-shifted 1MLCT absorption but afford blue-shifted emission from the triplet metal-to-ligand charge-transfer (3MLCT) excited state. This increases the oxidation power and lifetime of the 3MLCT excited state. These unique property changes are favorable, particularly for redox photosensitizers. The interligand interaction is strongly expressed by the ring-shaped multinuclear Re(I) complexes (Re-rings). In the case of Re-rings with high steric hindrance due to a small inner cavity, the lifetime of the 3MLCT excited state is up to 8 μs and the emission quantum yield is up to 70%. These properties cannot be obtained by the corresponding mononuclear Re(I) complexes, which generally exhibit shorter lifetimes (<1 μs) and lower emission quantum yields (<10%). Some of the Re-rings could be successfully applied as efficient photosensitizers in photocatalytic systems for CO2 reduction; the highest quantum yields for CO2 reduction were achieved by using photocatalytic systems composed of Re-rings as the photosensitizers and Re(I) (82%), Ru(II) (58%), and Mn(I) (48%) complexes as catalysts. This interligand interaction potentially provides unique and useful methods for controlling the photophysical, photochemical, and electrochemical functions of various metal complexes, paving the way to create new functions for metal complexes.
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Affiliation(s)
- Tatsuki Morimoto
- School
of Engineering, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
| | - Osamu Ishitani
- Department
of Chemistry, Graduate School of Science, Tokyo Institute of Technology, 2-12-1, NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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16
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Fomina IG, Ilyukhin AB, Zavorotny YS, Gerasimova VI, Taidakov IV, Datskevich NP, Vitukhnovskii AG, Dobrokhotova ZV, Eremenko IL. Binuclear europium(III) pivalates with 4,7-diphenyl-1,10-phenanthroline: Controllable synthesis, unique structural transitions, and remarkable luminescence. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Rohacova J, Ishitani O. Photofunctional multinuclear rhenium(i) diimine carbonyl complexes. Dalton Trans 2017; 46:8899-8919. [DOI: 10.1039/c7dt00577f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this review, we summarize the synthesis, photophysical properties and applications of a wide variety of multinuclear complexes consisting of Re(i)-diimine-carbonyl units.
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Affiliation(s)
- Jana Rohacova
- Department of Chemistry
- Graduate School of Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - Osamu Ishitani
- Department of Chemistry
- Graduate School of Science and Engineering
- Tokyo Institute of Technology
- Tokyo
- Japan
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18
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Structural deformation of a ring-shaped Re(I) diimine dinuclear complex in the excited state. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Mella P, Cabezas K, Cerda C, Cepeda-Plaza M, Günther G, Pizarro N, Vega A. Solvent, coordination and hydrogen-bond effects on the chromic luminescence of the cationic complex [(phen)(H2O)Re(CO)3]+. NEW J CHEM 2016. [DOI: 10.1039/c6nj00885b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The unusual behavior of the solution luminescence emission of [(phen)(H2O)Re(CO)3]+(CF3SO3)− depends on the solvent polarity, and coordinating and hydrogen bonding ability.
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Affiliation(s)
- Pablo Mella
- Universidad Andres Bello
- Facultad de Ciencias Exactas
- Departamento de Ciencias Químicas
- Santiago
- Chile
| | - Karina Cabezas
- Universidad Andres Bello
- Facultad de Ciencias Exactas
- Departamento de Ciencias Químicas
- Santiago
- Chile
| | - Carla Cerda
- Universidad Andres Bello
- Facultad de Ciencias Exactas
- Departamento de Ciencias Químicas
- Santiago
- Chile
| | - Marjorie Cepeda-Plaza
- Universidad Andres Bello
- Facultad de Ciencias Exactas
- Departamento de Ciencias Químicas
- Santiago
- Chile
| | - German Günther
- Universidad de Chile
- Facultad de Ciencias Químicas y Farmacéuticas
- Departamento de Química Inorgánica y Analítica
- Santiago
- Chile
| | - Nancy Pizarro
- Universidad Andres Bello
- Facultad de Ciencias Exactas
- Departamento de Ciencias Químicas
- Quillota 980
- Chile
| | - Andrés Vega
- Universidad Andres Bello
- Facultad de Ciencias Exactas
- Departamento de Ciencias Químicas
- Quillota 980
- Chile
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20
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Carreño A, Gacitúa M, Fuentes JA, Páez-Hernández D, Peñaloza JP, Otero C, Preite M, Molins E, Swords WB, Meyer GJ, Manríquez JM, Polanco R, Chávez I, Arratia-Pérez R. Fluorescence probes for prokaryotic and eukaryotic cells using Re(CO)3+complexes with an electron withdrawing ancillary ligand. NEW J CHEM 2016. [DOI: 10.1039/c6nj00905k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Re(CO)3+complexes with an ancillary ligand present an electron withdrawing effect suitable for cell imaging.
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21
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Rohacova J, Sekine A, Kawano T, Tamari S, Ishitani O. Trinuclear and Tetranuclear Re(I) Rings Connected with Phenylene, Vinylene, and Ethynylene Chains: Synthesis, Photophysics, and Redox Properties. Inorg Chem 2015; 54:8769-77. [DOI: 10.1021/acs.inorgchem.5b01397] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jana Rohacova
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 322-0012, Japan
| | - Akiko Sekine
- Department
of Chemistry and Material Science, Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1-H60 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Tsubasa Kawano
- Department
of Chemistry and Material Science, Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1-H60 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Sho Tamari
- Department
of Chemistry and Material Science, Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1-H60 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Osamu Ishitani
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 322-0012, Japan
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22
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Pizarro N, Duque M, Chamorro E, Nonell S, Manzur J, de la Fuente JR, Günther G, Cepeda-Plaza M, Vega A. Dual Emission of a Novel (P,N) ReI Complex: A Computational and Experimental Study on [P,N-{(C6H5)2(C5H4N)P}Re(CO)3Br]. J Phys Chem A 2015; 119:3929-35. [DOI: 10.1021/jp512614w] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Nancy Pizarro
- Departamento
de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Quillota 980, Viña del Mar, Valparaíso, Chile
| | - Mario Duque
- Departamento
de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Quillota 980, Viña del Mar, Valparaíso, Chile
| | - Eduardo Chamorro
- Departamento
de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Quillota 980, Viña del Mar, Valparaíso, Chile
| | - Santi Nonell
- Institut
Quimic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain
| | - Jorge Manzur
- Departamento
de Ciencia de Los Materiales,
Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Av. Tupper 2069, Santiago, Chile
- Centro
para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Universidad de Santiago de Chile, Avda. Ecuador 3493, Estación Central, Santiago, Chile
| | - Julio R. de la Fuente
- Facultad
de Ciencias Químicas y Farmacéuticas, Departamento de
Química Orgánica y Fisicoquímica, Universidad de Chile, Santos Dumont 964, Independencia, Chile
| | - Germán Günther
- Facultad
de Ciencias Químicas y Farmacéuticas, Departamento de
Química Orgánica y Fisicoquímica, Universidad de Chile, Santos Dumont 964, Independencia, Chile
| | - Marjorie Cepeda-Plaza
- Departamento
de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Quillota 980, Viña del Mar, Valparaíso, Chile
| | - Andrés Vega
- Departamento
de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Quillota 980, Viña del Mar, Valparaíso, Chile
- Centro
para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Universidad de Santiago de Chile, Avda. Ecuador 3493, Estación Central, Santiago, Chile
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23
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Kondrasenko I, Kisel KS, Karttunen AJ, Jänis J, Grachova EV, Tunik SP, Koshevoy IO. Rhenium(I) Complexes with Alkynylphosphane Ligands: Structural, Photophysical, and Theoretical Studies. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ilya Kondrasenko
- Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland, http://www.uef.fi/fi/kemia/kemia
| | - Kristina S. Kisel
- Department of Chemistry, St.‐Petersburg State University, Universitetskii pr. 26, 198504 St Petersburg, Russia, http://tmc‐lab.chem.spbu.ru/
| | | | - Janne Jänis
- Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland, http://www.uef.fi/fi/kemia/kemia
| | - Elena V. Grachova
- Department of Chemistry, St.‐Petersburg State University, Universitetskii pr. 26, 198504 St Petersburg, Russia, http://tmc‐lab.chem.spbu.ru/
| | - Sergey P. Tunik
- Department of Chemistry, St.‐Petersburg State University, Universitetskii pr. 26, 198504 St Petersburg, Russia, http://tmc‐lab.chem.spbu.ru/
| | - Igor O. Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland, http://www.uef.fi/fi/kemia/kemia
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24
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Carreño A, Gacitua M, Schott E, Zarate X, Manriquez JM, Preite M, Ladeira S, Castel A, Pizarro N, Vega A, Chavez I, Arratia-Perez R. Experimental and theoretical studies of the ancillary ligand (E)-2-((3-amino-pyridin-4-ylimino)-methyl)-4,6-di-tert-butylphenol in the rhenium(i) core. NEW J CHEM 2015. [DOI: 10.1039/c5nj00772k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Re(CO)3(deeb)L+ complex with an ancillary ligand that presents electron withdrawing effects was synthesized and studied by experimental and computational methods.
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25
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Hirose A, Tanaka K, Tamashima K, Chujo Y. Synthesis of dual-emissive organometallic complexes containing heterogeneous metal elements. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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26
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Asatani T, Nakagawa Y, Funada Y, Sawa S, Takeda H, Morimoto T, Koike K, Ishitani O. Ring-Shaped Rhenium(I) Multinuclear Complexes: Improved Synthesis and Photoinduced Multielectron Accumulation. Inorg Chem 2014; 53:7170-80. [DOI: 10.1021/ic501196q] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Tsuyoshi Asatani
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yuki Nakagawa
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yusuke Funada
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Shuhei Sawa
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroyuki Takeda
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 322-0012, Japan
| | - Tatsuki Morimoto
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 322-0012, Japan
| | - Kazuhide Koike
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba 305-8569, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 322-0012, Japan
| | - Osamu Ishitani
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
- CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 322-0012, Japan
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27
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Shankar B, Sahu S, Deibel N, Schweinfurth D, Sarkar B, Elumalai P, Gupta D, Hussain F, Krishnamoorthy G, Sathiyendiran M. Luminescent Dirhenium(I)-Double-Heterostranded Helicate and Mesocate. Inorg Chem 2014; 53:922-30. [DOI: 10.1021/ic4023135] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Saugata Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India
| | - Naina Deibel
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - David Schweinfurth
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
- Institut für
Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, D-14195 Berlin, Germany
| | - Biprajit Sarkar
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
- Institut für
Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, D-14195 Berlin, Germany
| | - Palani Elumalai
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Deepak Gupta
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | - Firasat Hussain
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
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28
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Morimoto T, Nishiura C, Tanaka M, Rohacova J, Nakagawa Y, Funada Y, Koike K, Yamamoto Y, Shishido S, Kojima T, Saeki T, Ozeki T, Ishitani O. Ring-shaped Re(I) multinuclear complexes with unique photofunctional properties. J Am Chem Soc 2013; 135:13266-9. [PMID: 23968314 DOI: 10.1021/ja406144h] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We synthesized for the first time a series of emissive ring-shaped Re(I) complexes (Re-rings) with various numbers of Re(I) units and various lengths of bridge ligands. The photophysical properties of the Re-rings could be varied widely through changes in the size of the central cavity. A smaller central cavity of the Re-rings induced intramolecular π-π interactions between the ligands and consequently caused a stronger emission and a longer lifetime of the excited state. The Re-rings can function as efficient and durable photosensitizers. The combination of a trinuclear Re-ring photosensitizer with fac-[Re(bpy)(CO)3(MeCN)](+) (bpy = 2,2'-bipyridine) as a catalyst photocatalyzed CO2 reduction with the highest quantum yield of 82%.
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Affiliation(s)
- Tatsuki Morimoto
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology , 2-12-1-NE1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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29
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Zhan SZ, Li M, Ng SW, Li D. Luminescent Metal-Organic Frameworks (MOFs) as a Chemopalette: Tuning the Thermochromic Behavior of Dual-Emissive Phosphorescence by Adjusting the Supramolecular Microenvironments. Chemistry 2013; 19:10217-25. [DOI: 10.1002/chem.201204632] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 04/30/2013] [Indexed: 11/06/2022]
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