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Ramírez‐Wierzbicki I, Cotic A, Cadranel A. Photoinduced Intervalence Charge Transfers: Spectroscopic Tools to Study Fundamental Phenomena and Applications. Chemphyschem 2022; 23:e202200384. [PMID: 35785464 PMCID: PMC9805035 DOI: 10.1002/cphc.202200384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/01/2022] [Indexed: 01/09/2023]
Abstract
The exploitation of excited state chemistry for solar energy conversion or photocatalysis has been continuously increasing, and the needs of a transition to a sustainable human development indicate this trend will continue. In this scenario, the study of mixed valence systems in the excited state offers a unique opportunity to explore excited state electron transfer reactivity, and, in a broader sense, excited state chemistry. This Concept article analyzes recent contributions in the field of photoinduced mixed valence systems, i. e. those where the mixed valence core is absent in the ground state but created upon light absorption. The focus is on the utilization of photoinduced intervalence charge transfer bands, detected via transient absorption spectroscopy, as key tools to study fundamental phenomena like donor/acceptor inversion, hole delocalization, coexistence of excited states and excited state nature, together with applications in molecular electronics.
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Affiliation(s)
- Ivana Ramírez‐Wierzbicki
- Instituto de Química Física de MaterialesMedio Ambiente y Energía (INQUIMAE)CONICET – Universidad de Buenos AiresPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
- Departamento de Química InorgánicaAnalítica y Química FísicaUniversidad de Buenos AiresFacultad de Ciencias Exactas y NaturalesPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
| | - Agustina Cotic
- Instituto de Química Física de MaterialesMedio Ambiente y Energía (INQUIMAE)CONICET – Universidad de Buenos AiresPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
- Departamento de Química InorgánicaAnalítica y Química FísicaUniversidad de Buenos AiresFacultad de Ciencias Exactas y NaturalesPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
| | - Alejandro Cadranel
- Instituto de Química Física de MaterialesMedio Ambiente y Energía (INQUIMAE)CONICET – Universidad de Buenos AiresPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
- Departamento de Química InorgánicaAnalítica y Química FísicaUniversidad de Buenos AiresFacultad de Ciencias Exactas y NaturalesPabellón 2, Ciudad UniversitariaC1428EHABuenos AiresArgentina
- Department Chemie und PharmaziePhysikalische ChemieFriedrich-Alexander-Universität Erlangen-NürnbergEgerlandstraße 391058ErlangenGermany
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2
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Zhang Q, Wong KMC. Photophysical, ion-sensing and biological properties of rhodamine-containing transition metal complexes. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213336] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Shahroosvand H, Heydari L, Nemati Bideh B, Pashaei B. Molecularly engineered electroplex emission for an efficient near-infrared light-emitting electrochemical cell (NIR-LEC). RSC Adv 2020; 10:14099-14106. [PMID: 35498498 PMCID: PMC9051648 DOI: 10.1039/c9ra10761d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/22/2020] [Indexed: 11/21/2022] Open
Abstract
Electroplex emission is rarely seen in ruthenium polypyridyl complexes, and there have been no reports from light-emitting electrochemical cells (LECs) to date. Here, for the first time, near-infrared (NIR) emission via the electroplex mechanism in a LEC based on a new blend of ruthenium polypyridyl complexes is described. The key factor in the design of the new complexes is the 0.4 V decrease in the oxidation half-potential of Ru(ii)/Ru(iii) in [Ru(DPCO)(bpy)2]ClO4 (DPCO = diphenylcarbazone, bpy = 2,2 bipyridine), which is about one-third of the value for benchmark [Ru(bpy)3](ClO4)2, as well as the long lifetime of excited states of 350-450 ns. The LEC based on the new blend with a narrow band gap (≈1.0 eV) of a Ru(DPCO) complex and Ru(bpy)3 2+ can produce an electroluminescence spectrum centred at about 700 nm, which extends to the NIR region with a high external quantum efficiency (EQE) of 0.93% at a very low turn-on voltage of 2.6 V. In particular, the very simple LEC structure was constructed from indium tin oxide (anode)/Ru(DPCO):Ru(bpy)3 2+/Ga:In (cathode), avoiding any polymer or transporting materials, as well as replacing Al or Au by a molten alloy cathode. This system has promising applications in the production of LECs via microcontact or inkjet printing.
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Affiliation(s)
- Hashem Shahroosvand
- Group for Molecular Engineering of Advanced Functional Materials (GMA), Chemistry Department, University of Zanjan Zanjan Iran +98-24-33058202 +98-24-33052584
| | - Leyla Heydari
- Group for Molecular Engineering of Advanced Functional Materials (GMA), Chemistry Department, University of Zanjan Zanjan Iran +98-24-33058202 +98-24-33052584
| | - Babak Nemati Bideh
- Group for Molecular Engineering of Advanced Functional Materials (GMA), Chemistry Department, University of Zanjan Zanjan Iran +98-24-33058202 +98-24-33052584.,Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Babak Pashaei
- Group for Molecular Engineering of Advanced Functional Materials (GMA), Chemistry Department, University of Zanjan Zanjan Iran +98-24-33058202 +98-24-33052584
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Xiao Y, Cheung AWY, Lai SW, Cheng SC, Yiu SM, Leung CF, Ko CC. Electronic Communication in Luminescent Dicyanorhenate-Bridged Homotrinuclear Rhenium(I) Complexes. Inorg Chem 2019; 58:6696-6705. [PMID: 31063368 DOI: 10.1021/acs.inorgchem.9b00072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of cyano-bridged homotrinuclear Re(I) complexes with the general formula of {[Re]'[Re][Re]'}+ {[Re]' = -[ReI(CO)2(LL)(X)]; [Re] = -[(NC)ReI(CO)2(phen)(CN)]-; LL = diimine, diphosphine, or two carbonyl ligands; X = triphenylphosphine or carbonyl ligand} and the corresponding mononuclear complex analogues were synthesized. The structures of most of the trinuclear Re(I) complexes have been determined by X-ray crystallography. The relative orientations of peripheral to central Re(I) units in these structures vary considerably. The photophysical properties of these trinuclear Re(I) complexes have been examined. Except for the trinuclear Re(I) complex with Br2phen ligand, all the other triads display orange to red photoluminescence derived from the 3MLCT [dπ(Re) → π*(phen)] origin of the central Re(I) unit, suggestive of efficient energy transfer between the peripheral chromophores and the central unit. In addition to the efficient energy transfer processes between the Re(I) chromophores in these trinuclear complexes, the ability of the [NC-Re-CN] bridging ligands for electronic coupling between the rhenium metal centers is evidenced by ca. 0.2-0.3 V separation of the two rhenium metal-based oxidation potentials of the chemically equivalent peripheral units.
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Affiliation(s)
- Yelan Xiao
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Apple Wai-Yi Cheung
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Sze-Wing Lai
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Shun-Cheung Cheng
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Shek-Man Yiu
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
| | - Chi-Fai Leung
- Department of Science and Environmental Studies , The Education University of Hong Kong , 10 Lo Ping Road , Tai Po , N. T., Hong Kong , China
| | - Chi-Chiu Ko
- Department of Chemistry , City University of Hong Kong , Tat Chee Avenue , Kowloon , Hong Kong , China
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Kisel KS, Melnikov AS, Grachova EV, Karttunen AJ, Doménech-Carbó A, Monakhov KY, Semenov VG, Tunik SP, Koshevoy IO. Supramolecular Construction of Cyanide-Bridged Re I Diimine Multichromophores. Inorg Chem 2019; 58:1988-2000. [PMID: 30633505 DOI: 10.1021/acs.inorgchem.8b02974] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reactions of labile [Re(diimine)(CO)3(H2O)]+ precursors (diimine = 2,2'-bipyridine, bpy; 1,10-phenanthroline, phen) with dicyanoargentate anion produce the dirhenium cyanide-bridged compounds [{Re(diimine)(CO)3}2CN)]+ (1 and 2). Substitution of the axial carbonyl ligands in 2 for triphenylphosphine gives the derivative [{Re(phen)(CO)2(PPh3)}2CN]+ (3), while the employment of a neutral metalloligand [Au(PPh3)(CN)] affords heterobimetallic complex [{Re(phen)(CO)3}NCAu(PPh3)]+ (4). Furthermore, the utilization of [Au(CN)2]-, [Pt(CN)4]2-, and [Fe(CN)6]4-/3- cyanometallates leads to the higher nuclearity aggregates [{Re(diimine)(CO)3NC} xM] m+ (M = Au, x = 2, 5 and 6; Pt, x = 4, 7 and 8; Fe, x = 6, 9 and 10). All novel compounds were characterized crystallographically. Assemblies 1-8 are phosphorescent both in solution and in the solid state; according to the DFT analysis, the optical properties are mainly associated with charge transfer from Re tricarbonyl motif to the diimine fragment. The energy of this process can be substantially modified by the properties of the ancillary ligands that allows to attain near-IR emission for 3 (λem = 737 nm in CH2Cl2). The Re-FeII/III complexes 9 and 10 are not luminescent but exhibit low energy absorptions, reaching 846 nm (10) due to ReI → FeIII transition.
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Affiliation(s)
- Kristina S Kisel
- Institute of Chemistry , St. Petersburg State University , Universitetskiy pr. 26, Petergof , St. Petersburg 198504 , Russia.,Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
| | - Alexei S Melnikov
- Peter the Great St. Petersburg Polytechnic University , Polytechnicheskaya, 29 , St. Petersburg 195251 , Russia
| | - Elena V Grachova
- Institute of Chemistry , St. Petersburg State University , Universitetskiy pr. 26, Petergof , St. Petersburg 198504 , Russia
| | - Antti J Karttunen
- Department of Chemistry and Materials Science , Aalto University , 00076 Aalto , Finland
| | | | - Kirill Yu Monakhov
- Leibniz Institute of Surface Engineering (IOM) , Permoserstraße 15 , 04318 Leipzig , Germany
| | - Valentin G Semenov
- Institute of Chemistry , St. Petersburg State University , Universitetskiy pr. 26, Petergof , St. Petersburg 198504 , Russia
| | - Sergey P Tunik
- Institute of Chemistry , St. Petersburg State University , Universitetskiy pr. 26, Petergof , St. Petersburg 198504 , Russia
| | - Igor O Koshevoy
- Department of Chemistry , University of Eastern Finland , 80101 Joensuu , Finland
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Aramburu-Trošelj BM, Oviedo PS, Ramírez-Wierzbicki I, Baraldo LM, Cadranel A. Inversion of donor–acceptor roles in photoinduced intervalence charge transfers. Chem Commun (Camb) 2019; 55:7659-7662. [DOI: 10.1039/c9cc03483h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Upon MLCT photoexcitation, {(tpy)Ru} becomes the electron acceptor in the mixed valence {(tpy˙−)RuIII−δ-NC-MII+δ} moiety, reversing its role as the electron donor in the ground-state mixed valence analogue.
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Affiliation(s)
- Bruno M. Aramburu-Trošelj
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Paola S. Oviedo
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Ivana Ramírez-Wierzbicki
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Luis M. Baraldo
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
| | - Alejandro Cadranel
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Inorgánica
- Analítica y Química Física, Pabellón 2
- Ciudad Universitaria
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7
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Kuo HY, Lee TS, Chu AT, Tignor SE, Scholes GD, Bocarsly AB. A cyanide-bridged di-manganese carbonyl complex that photochemically reduces CO2 to CO. Dalton Trans 2019; 48:1226-1236. [DOI: 10.1039/c8dt03358g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cyanide-bridged di-manganese complex, {[Mn(bpy)(CO)3]2(μ-CN)}+, is introduced as an efficient electrocatalyst and photochemically active for proton-assisted of CO2 reduction to CO.
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Affiliation(s)
- Hsin-Ya Kuo
- Princeton University
- Department of Chemistry
- Princeton
- USA
| | - Tia S. Lee
- Princeton University
- Department of Chemistry
- Princeton
- USA
| | - An T. Chu
- Princeton University
- Department of Chemistry
- Princeton
- USA
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8
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Development of sensitive and selective food sensors using new Re(I)-Pt(II) bimetallic complexes to detect volatile biogenic sulfides formed by meat spoilage. Food Chem 2017; 216:382-9. [DOI: 10.1016/j.foodchem.2016.08.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 08/15/2016] [Accepted: 08/16/2016] [Indexed: 11/21/2022]
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9
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Saad ST, Metherell AJ, Baggaley E, Ward MD. Synthesis and photophysical properties of Ir(iii)/Re(i) dyads: control of Ir→Re photoinduced energy transfer. Dalton Trans 2016; 45:11568-79. [DOI: 10.1039/c6dt01614f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The extent of Ir→Re photoinduced energy transfer in Ir(iii)/Re(i) dyads can be controlled using a solvent-sensitive conformationally flexible bridging ligand.
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Affiliation(s)
- Suad T. Saad
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
- College of Sciences WSCI
| | | | | | - Michael D. Ward
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
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10
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Mongal BN, Pal A, Mandal TK, Datta J, Naskar S. Synthesis, characterisation, electrochemical study and photovoltaic measurements of a new terpyridine and pyridine-quinoline based mixed chelate ruthenium dye. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.10.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Naskar S, Pakhira B, Mishra D, Mitra P, Chattopadhyay SK, Naskar S. Synthesis, characterization and theoretical studies of the heteroleptic Ruthenium(II) complexes of 2,6-bis(benzimidazolyl)pyridine. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Chow CF, Ho KYF, Gong CB. Synthesis of a New Bimetallic Re(I)–NCS–Pt(II) Complex as Chemodosimetric Ensemble for the Selective Detection of Mercapto-Containing Pesticides. Anal Chem 2015; 87:6112-8. [DOI: 10.1021/acs.analchem.5b00684] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | | | - Cheng-Bin Gong
- College
of Chemistry and Chemical Engineering, Southwest University, Chong Qing, China
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13
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Ko CC, Cheung AWY, Yiu SM. Synthesis, photophysical and electrochemical study of diisocyano-bridged homodinuclear rhenium(I) diimine complexes. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Leung FCM, Tam AYY, Au VKM, Li MJ, Yam VWW. Förster resonance energy transfer studies of luminescent gold nanoparticles functionalized with ruthenium(II) and rhenium(I) complexes: modulation via esterase hydrolysis. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6644-6653. [PMID: 24754668 DOI: 10.1021/am500350c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A number of ruthenium(II) and rhenium(I) bipyridine complexes functionalized with lipoic acid moieties have been synthesized and characterized. Functionalization of gold nanoparticles with these chromophoric ruthenium(II) and rhenium(I) complexes has resulted in interesting supramolecular assemblies with Förster resonance energy transfer (FRET) properties that could be modulated via esterase hydrolysis. The luminescence of the metal complex chromophores was turned on upon cleavage of the ester bond linkage by esterase to reduce the efficiency of FRET quenching. The prepared nanoassembly conjugates have been characterized by transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), UV-visible spectroscopy, and emission spectroscopy. The quenching mechanism has also been studied by transient absorption and time-resolved emission decay measurements. The FRET efficiencies were found to vary with the nature of the chromophores and the length of the spacer between the donor (transition metal complexes) and the acceptor (gold nanoparticles).
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Affiliation(s)
- Frankie Chi-Ming Leung
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong SAR, P. R. China
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Chow CF, Gong FW, Gong CB. Chemodosimetric analysis in food-safety monitoring: design, synthesis, and application of a bimetallic Re(i)–Pt(ii) complex for detection of dimethyl sulfide in foods. Analyst 2014; 139:4532-7. [DOI: 10.1039/c4an00120f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Detection of neutral biogenic sulfides plays a crucial role in food safety. A new heterobimetallic Re(i)–Pt(ii) donor–acceptor chemodosimeter—[Re(biq)(CO)3(CN)]–[Pt(DMSO)(Cl)2] (1, biq = 2,2′-biquinoline)—was synthesized and characterized.
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Affiliation(s)
- Cheuk-Fai Chow
- Department of Science and Environmental Studies
- The Hong Kong Institute of Education
- Tai Po, China
- Centre for Education in Environmental Sustainability
- The Hong Kong Institute of Education
| | - Fu-Wen Gong
- College of Chemistry and Chemical Engineering
- Southwest University
- Chong Qing, China
| | - Cheng-Bin Gong
- College of Chemistry and Chemical Engineering
- Southwest University
- Chong Qing, China
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Feng H, Zhang F, Lai SW, Yiu SM, Ko CC. Luminescent cyanoruthenate(II)-diimine and cyanoruthenium(II)-diimine complexes. Chemistry 2013; 19:15190-8. [PMID: 24114949 DOI: 10.1002/chem.201302216] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Indexed: 11/12/2022]
Abstract
To improve the emission and excited-state properties of luminescent cyanometalates, new classes of highly solvatochromic luminescent cyanoruthenium(II) and cyanoruthenate(II) complexes of the general formulae [Ru(PR3)2(CN)2(NN)] and K[Ru(PR3)(CN)3(NN)], respectively, were developed. These complexes could be readily synthesized through the ligand-substitution reaction of K2[Ru(CN)4(PR3)2] with a diimine ligand. The geometrical isomerism of these complexes was characterized by using various spectroscopic techniques. Their photophysical properties, solvatochromism, and electrochemistry have also been investigated. Our detailed study showed that many of these complexes exhibited extremely environmentally sensitive emissions and significantly improved emission quantum efficiencies and lifetimes compared with the well-studied tetracyanoruthenate systems.
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Affiliation(s)
- Hua Feng
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (P.R. China), Fax: (+852) 3442-0522
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Çetinkaya F, Kürkçüoğlu GS, Yeşilel OZ, Hökelek T, Süzen Y. Syntheses, crystal structures and spectral properties of 1D tetracyanonickelate(II) complexes with 1-ethylimidazole. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.05.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Ultrafast Excited-State Processes in Re(I) Carbonyl-Diimine Complexes: From Excitation to Photochemistry. TOP ORGANOMETAL CHEM 2009. [DOI: 10.1007/3418_2009_4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Ishiruji FHO, Nunes FS. A comprehensive electronic structure description of a biscyanotetraazacobalt(III) macrocyclic complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:94-8. [PMID: 17267268 DOI: 10.1016/j.saa.2006.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2006] [Accepted: 11/08/2006] [Indexed: 05/13/2023]
Abstract
Molecular modeling and a detailed spectroscopic characterization of the macrocyclic complex [Co(meso)(CN)(2)](+) (meso = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane) is herein presented. Structural, electronic and vibrational features are discussed and assignments were proposed on the basis of semi-empirical (molecular mechanics (MM+), ZINDO/S and PM3) quantum-mechanics calculations. The energy and the composition of the molecular orbitals of the complex were calculated and a quantitative diagram was constructed. The simulated UV-vis spectrum exhibited a reasonably good accordance with the experimental one and fully assignments of seven bands were made. An optimized configuration of the complex showed a strong cobalt-cyanide axial bond in agreement with the major contribution of the cyanide to the composition of the molecular orbitals in contrast to a discrete participation of the macrocyclic meso to the ground state of the complex.
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Affiliation(s)
- Fabiana Hitomi Ono Ishiruji
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, C.P. 19081, 81531-990 Curitiba, PR, Brazil
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Dunbar KR, Heintz RA. Chemistry of Transition Metal Cyanide Compounds: Modern Perspectives. PROGRESS IN INORGANIC CHEMISTRY 2007. [DOI: 10.1002/9780470166468.ch4] [Citation(s) in RCA: 373] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Organometallic Chemistry of Polypyridine Ligands II. ADVANCES IN HETEROCYCLIC CHEMISTRY 2007. [DOI: 10.1016/s0065-2725(06)94002-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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22
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Cavichiolo LJ, Hasegawa T, Nunes FS. ZINDO/S and PM3 calculations for a biscyanide alpha-iminooxime cobalt macrocyclic complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 65:859-62. [PMID: 16677853 DOI: 10.1016/j.saa.2006.01.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2005] [Accepted: 01/13/2006] [Indexed: 05/09/2023]
Abstract
Molecular modeling and a detailed spectroscopic characterization of the macrocyclic complex [Co(dohpn)(CN)(2)] (dohpn=2,3,9,10-tetramethyl-1,4,8,11-tetraazaundecane-1,3,8,10-tetraen-11-ol-1-olate and py=pyridine) is herein presented. Structural, electronic and vibrational features are discussed and assignments were proposed on the basis of semi-empirical (molecular mechanics, ZINDO/S and PM3) calculations.
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Affiliation(s)
- Leandro J Cavichiolo
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, C.P. 19081, 81531-990 Curitiba, PR, Brasil
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Kurz P, Probst B, Spingler B, Alberto R. Ligand Variations in [ReX(diimine)(CO)3] Complexes: Effects on Photocatalytic CO2 Reduction. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200600166] [Citation(s) in RCA: 213] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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D'Alessandro DM, Keene FR. Intervalence Charge Transfer (IVCT) in Trinuclear and Tetranuclear Complexes of Iron, Ruthenium, and Osmium. Chem Rev 2006; 106:2270-98. [PMID: 16771450 DOI: 10.1021/cr050010o] [Citation(s) in RCA: 272] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Deanna M D'Alessandro
- School of Pharmacy & Molecular Sciences, James Cook University, Townsville, Queensland 4811, Australia
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25
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Reece SY, Nocera DG. Direct Tyrosine Oxidation Using the MLCT Excited States of Rhenium Polypyridyl Complexes. J Am Chem Soc 2005; 127:9448-58. [PMID: 15984872 DOI: 10.1021/ja0510360] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rhenium(I) polypyridyl complexes have been designed for the intramolecular photogeneration of tyrosyl radical. Tyrosine (Y) and phenylalanine (F) have each been separately appended to a conventional Re(I)(bpy)(CO)(3)CN framework via an amide linkage to the bipyridine (bpy) ligand. Comparative time-resolved emission quenching and transient absorption spectra of Re(bpy-Y)(CO)(3)CN and Re(bpy-F)(CO)(3)CN show that Y is oxidized only upon its deprotonation at pH 12. In an effort to redirect electron transport so that it is more compatible with intramolecular Y oxidation, polypyridyl Re(I) complexes have been prepared with the amide bond functionality located on a pendant phosphine ligand. A [Re(phen)(PP-Bn)(CO)(2)](PF(6)) (PP = bis(diphenylphosphino)ethylene) complex has been synthesized and crystallographically characterized. Electrochemistry and phosphorescence measurements of this complex indicate a modest excited-state potential for tyrosine oxidation, similar to that for the (bpy)Re(I)(CO)(3)CN framework. The excited-state oxidation potential can be increased by introducing a monodentate phosphine to the Re(I)(NN)(CO)(3)(+) framework (NN = polypyridyl). In this case, Y is oxidized at all pHs when appended to the triphenylphosphine (P) of [Re(phen)(P-Y)(CO(3))](PF(6)). Analysis of the pH dependence of the rate constant for tyrosyl radical generation is consistent with a proton-coupled electron transfer (PCET) quenching mechanism.
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Affiliation(s)
- Steven Y Reece
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, USA
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Ferrer M, Rodríguez L, Rossell O, Lima JC, Gómez-Sal P, Martín A. Unexpected Alkyne Transfer between Gold and Rhenium Atoms and Its Application to the Synthesis of Alkynyl Rhenium(I) Compounds. Organometallics 2004. [DOI: 10.1021/om0494869] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Montserrat Ferrer
- Departament de Química Inorgànica, Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028 Barcelona, Spain, Departamento de Química, Centro de Química Fina e Biotecnologia-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal, and Departamento de Química Inorgánica, Campus Universitario-Edificio de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Laura Rodríguez
- Departament de Química Inorgànica, Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028 Barcelona, Spain, Departamento de Química, Centro de Química Fina e Biotecnologia-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal, and Departamento de Química Inorgánica, Campus Universitario-Edificio de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Oriol Rossell
- Departament de Química Inorgànica, Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028 Barcelona, Spain, Departamento de Química, Centro de Química Fina e Biotecnologia-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal, and Departamento de Química Inorgánica, Campus Universitario-Edificio de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - João C. Lima
- Departament de Química Inorgànica, Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028 Barcelona, Spain, Departamento de Química, Centro de Química Fina e Biotecnologia-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal, and Departamento de Química Inorgánica, Campus Universitario-Edificio de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Pilar Gómez-Sal
- Departament de Química Inorgànica, Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028 Barcelona, Spain, Departamento de Química, Centro de Química Fina e Biotecnologia-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal, and Departamento de Química Inorgánica, Campus Universitario-Edificio de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Avelino Martín
- Departament de Química Inorgànica, Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028 Barcelona, Spain, Departamento de Química, Centro de Química Fina e Biotecnologia-REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal, and Departamento de Química Inorgánica, Campus Universitario-Edificio de Farmacia, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
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Hartmann H, Kaim W, Wanner M, Klein A, Frantz S, Duboc-Toia C, Fiedler J, Zális S. Proof of Innocence for the Quintessential Noninnocent Ligand TCNQ in Its Tetranuclear Complex with Four [fac-Re(CO)3(bpy)]+ Groups: Unusually Different Reactivity of the TCNX Ligands (TCNX = TCNE, TCNQ, TCNB). Inorg Chem 2003; 42:7018-25. [PMID: 14577767 DOI: 10.1021/ic034232l] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reactions of [fac-Re(CO)(3)(bpy)(MeOH)](PF(6)), bpy = 2.2'-bipyridine, with the TCNX ligands (TCNE = tetracyanoethene, TCNQ = 7,7,8,8-tetracyano-p-quinodimethane, and TCNB = 1,2,4,5-tetracyanobenzene) in CH(2)Cl(2) gave very different results. No reaction was observed with TCNB whereas TCNE produced very labile intermediates which converted under mild conditions to structurally characterized [(mu-CN)[fac-Re(CO)(3)(bpy)](2)](PF(6)) with an eclipsed conformation relative to the almost linear Re-CN-Re axis (Re-N(NC) 2.134(8) A, Re-C(CN) 2.098(8) A). With TCNQ, a stable tetranuclear complex [(mu(4)-TCNQ)[Re(CO)(3)(bpy)](4)](BF(4))(4) was obtained. Its structural, electrochemical, and spectroscopic analysis indicates only negligible charge transfer from the rhenium(I) centers to the extremely strong pi acceptor TCNQ. Evidence includes a calculated charge of only -0.09 for coordinated TCNQ according to the empirical structure/charge correlation of Kistenmacher, a high-energy nitrile stretching band nu(CN) = 2235 cm(-1), and unprecedented large anodic shifts >0.7 V of the reduction potentials. DFT calculations were used to confirm and explain the absence of electron delocalization from the electron-rich metals to the TCNQ acceptor bridge. Correspondingly, the X-band and high-frequency (285 GHz) EPR data (g = 2.007) as well as the IR and UV-vis-NIR spectroelectrochemical results (marginal nu(CO) shifts, TCNQ(*-) chromophore bands) support the almost exclusive confinement of the added electron in [(mu(4)-TCNQ)[Re(CO)(3)(bpy)](4)](3+) to the TCNQ bridge.
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Affiliation(s)
- Heiko Hartmann
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
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A new cyano-bridged Ca(II)–Fe(III) complex containing both molecular square and linear trimetallic species. INORG CHEM COMMUN 2003. [DOI: 10.1016/s1387-7003(02)00743-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Weinert CS, Prokopuk N, Arendt SM, Stern CL, Shriver DF. Preparation and substitution chemistry of [Bu4N]2[W6Cl8(p-OSO2C6H4CH3)6]. A useful precursor for pseudohalide, acetate, and organometallic complexes containing the [W6Cl8](4+) core. Inorg Chem 2001; 40:5162-8. [PMID: 11559076 DOI: 10.1021/ic001480y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The tosylate (p-toluenesulfonate) cluster [Bu4N]2[W6Cl8(p-OSO2C6H4CH3)6] (1) has been prepared and characterized by IR and NMR spectroscopy, elemental analysis, and an X-ray crystal structure. This cluster complex is shown to be a useful starting material for the preparation of pseudohalide clusters, [Bu4N]2[W6Cl8(NCQ)6] (Q = O (2), S (3), and Se (4)), in high yields. Cluster 1 also serves as a precursor to the new cluster compounds: [Bu4N]2[W6Cl8(O2CCH3)6] (5), [Bu4N]2[W6Cl8((mu-NC)Mn(CO)2(C5H5))6] (6), [W6Cl8((mu-NC)Ru(PPh3)2(C5H5))6][ p-OSO2C6H4CH3]4 (7), and [W6Cl8((mu-NC)Os(PPh3)2(C5H5))6][ p-OSO2C6H4CH3]4 (8). X-ray crystal structures are reported for 1, 4, and 5.
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Affiliation(s)
- C S Weinert
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston Illinois 60208-3113, USA
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31
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The design, assembly, properties and crystal structure of one-dimensional polymeric cyanide-bridged nickel(II)/nickel(II) complexes. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(99)00411-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Synthesis, studies and molecular structure of trinuclear cyanide-bridged copperiron complexes. Inorganica Chim Acta 1999. [DOI: 10.1016/s0020-1693(99)00183-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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Photocatalytic reduction of carbon dioxide using [fac-Re(bpy)(CO)3(4-Xpy)]+ (Xpy=pyridine derivatives). J Photochem Photobiol A Chem 1999. [DOI: 10.1016/s1010-6030(98)00430-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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34
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Costa I, Fabbrizzi L, Pallavicini P, Poggi A, Zani A. Electrochemical and photophysical properties of two-component coordination compounds containing a metallocyclam and an ReI(bipy)(CO)3Cl subunit. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)06109-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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HORI H, ISHIHARA J, KOIKE K, TAKEUCHI K, IBUSUKI T, TANABE J, ISHITANI O. Electrospray Mass Spectrometric Detection of Neutral Metal Bipyridine Complexes Using Sodium Ions and Its Application in the Analysis of a Photochemical Ligand Substitution Reaction. ANAL SCI 1998. [DOI: 10.2116/analsci.14.287] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hisao HORI
- National Institute for Resources and Environment
| | - Jun ISHIHARA
- National Institute for Resources and Environment
| | | | | | | | - Junji TANABE
- Graduate School of Science and Engineering, Saitama University
| | - Osamu ISHITANI
- Graduate School of Science and Engineering, Saitama University
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36
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Hori H, Ishihara J, Koike K, Takeuchi K, Ibusuki T, Ishitani O. Photoinduced Formation of [fac-Re(bpy)(CO)3CN] from [fac-Re(bpy)(CO)3(4-CNpy)]+(bpy = 2,2′-bipyridine, py = pyridine): CN Group Rearrangement of a Cyanopyridine Ligand onto Central Metal. CHEM LETT 1997. [DOI: 10.1246/cl.1997.1249] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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37
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Geiβ A, Keller M, Vahrenkamp H. A highly redox-active tetranuclear complex with a nearly linear Fe-CN-Mn-O-Mn-NC-Fe backbone. J Organomet Chem 1997. [DOI: 10.1016/s0022-328x(97)00120-4] [Citation(s) in RCA: 19] [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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38
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Stasicka Z, Wasielewska E. Photosubstitution and photoredox behaviour of cyanometallates: reaction models. Coord Chem Rev 1997. [DOI: 10.1016/s0010-8545(96)01310-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Aarnts MP, J. Stufkens D, Oskam A, Fraanje J, Kees Goubitz. Syntheses, structures and spectroscopic properties of novel inorganometallic complexes Ru(E)(E′)(CO)2(iPr-DAB). Inorganica Chim Acta 1997. [DOI: 10.1016/s0020-1693(96)05423-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Balzani V, Juris A, Venturi M, Campagna S, Serroni S. Luminescent and Redox-Active Polynuclear Transition Metal Complexes. Chem Rev 1996; 96:759-834. [PMID: 11848772 DOI: 10.1021/cr941154y] [Citation(s) in RCA: 1749] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vincenzo Balzani
- Dipartimento di Chimica Inorganica e Struttura Molecolare, Università di Messina, 98166 Messina, Italy
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41
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Frank M, Nieger M, Vögtle F, Belser P, von Zelewsky A, De Cola L, Balzani V, Barigelletti F, Flamigni L. Dinuclear RuII and/or OsII complexes of bis-bipyridine bridging ligands containing adamantane spacers: synthesis, luminescence properties, intercomponent energy and electron transfer processes. Inorganica Chim Acta 1996. [DOI: 10.1016/0020-1693(95)04878-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Johnson FPA, George MW, Hartl F, Turner JJ. Electrocatalytic Reduction of CO2Using the Complexes [Re(bpy)(CO)3L]n(n= +1, L = P(OEt)3, CH3CN;n= 0, L = Cl-, Otf-; bpy = 2,2‘-Bipyridine; Otf-= CF3SO3) as Catalyst Precursors: Infrared Spectroelectrochemical Investigation. Organometallics 1996. [DOI: 10.1021/om960044+] [Citation(s) in RCA: 244] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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44
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45
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Inter-chromophore electronic interactions in ligand-bridged polynuclear complexes: a comparative study of various bridging ligands. Inorganica Chim Acta 1994. [DOI: 10.1016/0020-1693(94)04089-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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47
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Barigelletti F, Flamigni L, Balzani V, Collin JP, Sauvage JP, Sour A, Constable E, Cargill Thompson A. Intramolecular energy transfer through phenyl bridges in rod-like dinuclear Ru(II)/Os(II) terpyridine-type complexes. Coord Chem Rev 1994. [DOI: 10.1016/0010-8545(94)80042-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Carvalho M, Duarte M, Galvão A, Pombeiro A. Cyanide and methylisocyanide complexes of rhenium(l) [NBu4][ReX(CN)(dppe)2] (X Cl or CN; dppe Ph2PCH2CH2PPh2) and trans-[ReX(CNMe)(dppe)2] (X H, F, Cl or CN): crystal structures of trans-[ReX(CNMe)(dppe)2] (X H or Cl). J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)80081-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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49
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Bignozzi CA, Chiorboli C, Indelli MT, Scandola F, Bertolasi V, Gilli G. Molecular structure and linkage isomerism of cis-[Ru(bipy)2{trans-Cr(cyclam)(CN)2}2]4+(bipy = 2,2′-bipyridine, cyclam = 1,4,8,11-tetraazacyclotetradecane). ACTA ACUST UNITED AC 1994. [DOI: 10.1039/dt9940002391] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Barigelletti F, Flamigni L, Balzani V, Collin JP, Sauvage JP, Sour A, Constable EC, Thompson AMWC. Luminescence properties of rigid rod-like binuclear ruthenium(II)–osmium(II) terpyridine complexes; electronic interaction through phenyl bridges. ACTA ACUST UNITED AC 1993. [DOI: 10.1039/c39930000942] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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