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A One Dimensional 3d–4f Heterometallic Chain Based on Gd3+ Nodes and Tetranuclear {Cr4(hdpta)2} Complex Ligands: Synthesis, Structure and Magnetic Properties. J CLUST SCI 2015. [DOI: 10.1007/s10876-015-0958-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Takemura Y, Okui Y, Kure B, Nakajima T, Tanase T, Mikuriya M, Takahashi M. Octanuclear iron(III) complexes supported by Kemp’s tricarboxylate ligands. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.09.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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3
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Tamura M, Yamagishi M, Kawamoto T, Igashira-Kamiyama A, Tsuge K, Konno T. Synthesis and Linkage Isomerization of Thiolato-Bridged RuIIAgIRuII Trinuclear Complex with d-Penicillaminate. Inorg Chem 2009; 48:8998-9004. [DOI: 10.1021/ic901181x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Motoshi Tamura
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Masakazu Yamagishi
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Tatsuya Kawamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Asako Igashira-Kamiyama
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Kiyoshi Tsuge
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
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Takagi H, Mikata Y, Ichimura A, Yano T, Kinoshita I, Hori M, Collins TJ, Gottschaldt M, Yano S. Feasible attachment of dinuclear ruthenium complex to gold electrode surface via new ligand substitution reaction. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Nakai M, Funabiki T, Ohtsuki C, Harada M, Ichimura A, Tanaka R, Kinoshita I, Mikuriya M, Benten H, Ohkita H, Ito S, Obata M, Yano S. Structure and photochemical properties of (mu-alkoxo)bis(mu-carboxylato)diruthenium complexes with naphthylacetate ligands. Inorg Chem 2006; 45:3048-56. [PMID: 16562961 DOI: 10.1021/ic051582u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two new dinuclear Ru(III) complexes containing naphthalene moieties, K[Ru2(dhpta)(mu-O2CCH2-1-naph)2] (1) and K[Ru2(dhpta)(mu-O2CCH2-2-naph)2] (2) (H5dhpta = 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid, naph-1-CH2CO2H = 1-naphthylacetic acid, naph-2-CH2CO2H = 2-naphthylacetic acid), were synthesized. Complex 2 crystallized as an orthorhombic system having a space group of Pbca with unit cell parameters a = 10.6200(5) A, b = 20.270(1) A, c = 35.530(2) A, and Z = 8. EXAFS analysis of 1 and 2 in the solid states and in solution clarified that the dinuclear structures of 1 and 2 were kept in DMSO solutions. Variable-temperature magnetic susceptibility data indicated that the two Ru(III) centers are strongly antiferromagnetically coupled as shown by the large coupling constants, J = -581 cm(-1) (1) and -378 cm(-1) (2). In the cyclic voltammograms of 1 and 2, one oxidation peak and two reduction peaks which were assigned to the redox reaction of the ruthenium moieties were observed in DMF. The large conproportionation constants estimated from the reduction potentials of Ru(III)Ru(III) and Ru(III)Ru(II) indicated the great stability of the mixed-valent state. The mixed-valent species [Ru(III)Ru(II)(dhpta)(mu-O2CCH2-R)2](2-) (R = 1-naph (6) and R = 2-naph (7)) were prepared by controlled potential electrolysis of 1 and 2 in DMF. The electronic absorption spectra of 6 and 7 were similar to that of [Ru(III)Ru(II) (dhpta)(mu-O2CCH3)2](2-) which is a typical Class II type mixed-valent complex. The fluorescence decay of 1 and 2 indicated that there are two quenching processes which come from the excimer and monomer states. The short excimer lifetimes of 1 and 2 were ascribed to the energy transfer from the naphthyl moieties to the Ru centers. The different excimer ratio between 1 and 2 suggested that the excimer formation is affected by the conformation of the naphthyl moieties in the diruthenium(III) complexes.
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Affiliation(s)
- Misaki Nakai
- Division of Material Science, Graduate School of Humanities and Sciences, Nara Women's University, Kitauoyanishimachi, Nara 630-8506, Japan
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Kar S, Sarkar B, Ghumaan S, Janardanan D, van Slageren J, Fiedler J, Puranik VG, Sunoj RB, Kaim W, Lahiri GK. 2,5-Dioxido-1,4-benzoquinonediimine (H2L2−), A Hydrogen-Bonding Noninnocent Bridging Ligand Related to Aminated Topaquinone: Different Oxidation State Distributions in Complexes [{(bpy)2Ru}2(μ-H2L)]n (n=0,+,2+,3+,4+) and [{(acac)2Ru}2(μ-H2L)]m (m=2−,−,0,+,2+). Chemistry 2005; 11:4901-11. [PMID: 15954152 DOI: 10.1002/chem.200500202] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The symmetrically dinuclear title compounds were isolated as diamagnetic [(bpy)2Ru(mu-H2L)Ru(bpy)2](ClO4)2 (1-(ClO4)2) and as paramagnetic [(acac)2Ru(mu-H2L)Ru(acac)2] (2) complexes (bpy=2,2'-bipyridine; acac- = acetylacetonate = 2,4-pentanedionato; H2L = 2,5-dioxido-1,4-benzoquinonediimine). The crystal structure of 22 H2O reveals an intricate hydrogen-bonding network: Two symmetry-related molecules 2 are closely connected through two NH(H2L2-)O(acac-) interactions, while the oxygen atoms of H2L2- of two such pairs are bridged by an (H2O)8 cluster at half-occupancy. The cluster consists of cyclic (H2O)6 arrangements with the remaining two exo-H2O molecules connecting two opposite sides of the cyclo-(H2O)6 cluster, and oxido oxygen atoms forming hydrogen bonds with the molecules of 2. Weak antiferromagnetic coupling of the two ruthenium(III) centers in 2 was established by using SQUID magnetometry and EPR spectroscopy. Geometry optimization by means of DFT calculations was carried out for 1(2+) and 2 in their singlet and triplet ground states, respectively. The nature of low-energy electronic transitions was explored by using time-dependent DFT methods. Five redox states were reversibly accessible for each of the complexes; all odd-electron intermediates exhibit comproportionation constants K(c)>10(8). UV-visible-NIR spectroelectrochemistry and EPR spectroscopy of the electrogenerated paramagnetic intermediates were used to ascertain the oxidation-state distribution. In general, the complexes 1n+ prefer the ruthenium(II) configuration with electron transfer occurring largely at the bridging ligand (mu-H2Ln-), as evident from radical-type EPR spectra for 13+ and (+. Higher metal oxidation states (iii, iv) appear to be favored by the complexes 2m; intense long-wavelength absorption bands and RuIII-type EPR signals suggest mixed-valent dimetal configurations of the paramagnetic intermediates 2+ and 2-.
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Affiliation(s)
- Sanjib Kar
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
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Miyashita Y, Islam MM, Amir N, Fujisawa K, Okamoto KI. Selective Formation of Alkoxo-bridged Titanium(IV) Polynuclear Complexes with Polyaminopolycarboxylate: First Titanium(IV) Octanuclear Complex Containing Cubic-type {Ti4(μ-oxo)4}2(μ-alkoxo)4Core. CHEM LETT 2004. [DOI: 10.1246/cl.2004.1516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Alessio E. Synthesis and Reactivity of Ru-, Os-, Rh-, and Ir-Halide−Sulfoxide Complexes. Chem Rev 2004; 104:4203-42. [PMID: 15352790 DOI: 10.1021/cr0307291] [Citation(s) in RCA: 186] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Enzo Alessio
- Dipartimento di Scienze Chimiche, Università di Trieste, 34127, Italy.
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Obata M, Tanihara N, Nakai M, Harada M, Akimoto S, Yamazaki I, Ichimura A, Kinoshita I, Mikuriya M, Hoshino M, Yano S. Electro- and photochemical properties of a (μ-alkoxo)bis(μ-carboxylato)diruthenium complex having two tetraphenylporphinato zinc(ii) moieties. Dalton Trans 2004:3283-7. [PMID: 15483712 DOI: 10.1039/b406410k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel (mu-alkoxo)bis(mu-carboxylato)diruthenium complex K[Ru(2)(dhpta)(mu-O(2)C-p-ZnTPP)(2)] 3 was prepared by simple ligand substitution reaction. Strong antiferromagnetic interaction between two Ru(III) ions of 3 was observed with a coupling constant of -425 approximately -404 cm(-1). The cyclic voltammogram of 3 can be explained in terms of superposition of those of ZnTPP-p-CO(2)H and K[Ru(2)(dhpta)(mu-O(2)CPh)(2)] 2, indicating no significant electrochemical interaction. The large conproportionation constant estimated from the reduction potentials for Ru(III)Ru(III) and Ru(II)Ru(III) indicates great stability of the mixed-valence state. The mixed-valence species [Ru(II)Ru(III)(dhpta)(mu-O(2)C-p-ZnTPP)(2)](2-) 4 was prepared by controlled potential electrolysis. The electronic absorption spectrum of 4 was quite similar to that of [Ru(II)Ru(III)(dhpta)(mu-O(2)CCH(3))(2)](2-) which is a typical Class II complex. The fluorescence from the S(2) state of the ZnTPP unit of 3 was significantly (78%) quenched. The electron transfer from the ZnTPP unit to Ru(III) ions in 3 is a plausible mechanism, even though energy transfer could not be ruled out completely. The free energy change for electron transfer, Delta G(CS), was estimated to be ca.-1.1 eV, which is similar to typical values for the reorganization energy lambda in polar solvents. Hence, the electron transfer scheme is situated almost at the top of the Marcus parabola, enabling ultrafast electron transfer.
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Affiliation(s)
- Makoto Obata
- Graduate School of Human Culture, Nara Women's University, Kitauoyanishimachi, Nara, 630-8506, Japan.
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Tanihara N, Obata M, Harada M, Mikata Y, Hamazawa A, Kinoshita I, Isobe K, Ichimura A, Hoshino M, Mikuriya M, Yano S. Synthesis of (μ-alkoxo)bis(μ-carboxylato)diruthenium complex having porphyrin moieties as a potential photo-harvesting functionality. INORG CHEM COMMUN 2003. [DOI: 10.1016/s1387-7003(03)00005-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Wullens H, Tinant B, Declercq JP, Devillers M. A new dodecanuclear bismuth polyaminocarboxylate complex with 2-hydroxy-1,3-diaminopropanetetraacetic acid. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01261-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Cameron BR, Bridger GJ, Maresca KP, Zubieta J. Synthesis of bis-thiolato-bridged ru(III) dimers. The crystal structure of [Ru(H2edta)(mu-SC6H5)]2. Inorg Chem 2000; 39:3928-30. [PMID: 11196791 DOI: 10.1021/ic990787y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B R Cameron
- AnorMED Inc., 200-20353 64th Avenue, Langley, BC V2Y 1N5, Canada.
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Kortes RA, Stringfield TW, Ward MS, Lin FT, Shepherd RE. The structures of mononuclear [PdII(hdta)]2− and [PdII(dhpta)]2− and binuclear [Pd2II(hdta)(H2O)2] and [PdII(H2O)PtIICl(hdta)]− complexes in aqueous solution. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(00)00069-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Tanase* T, Inoue C, Ota E, Yano* S, Takahashi M, Takeda M. Tetranuclear iron(III) complexes with a planar (μ-oxo)(μ-hydroxo)bis(μ-alkoxo)bis(μ-carboxylato)tetrairon core derived from hydrolysis of carboxylic acid amides by diiron(III) center. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(99)00254-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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TAKAGI H, ICHIMURA A, YANO T, KINOSHITA I, ISOBE K, ABE M, SASAKI Y, MIKATA Y, TANASE T, TAKESHITA N, INOUE C, KIMURA Y, ENDO S, TAMURA K, YANO S. Feasible Attachment of a Dinuclear Ruthenium Complex to Gold Electrode Surfaces. A Screening Method to Find Functional Electrodes. ELECTROCHEMISTRY 1999. [DOI: 10.5796/electrochemistry.67.1192] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | | | - Masaaki ABE
- Graduate School of Science Hokkaido University
| | | | - Yuji MIKATA
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Tomoaki TANASE
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Nao TAKESHITA
- Graduate School of Human Culture, Nara Women’s University
| | - Chiharu INOUE
- Graduate School of Human Culture, Nara Women’s University
| | - Yumi KIMURA
- Graduate School of Human Culture, Nara Women’s University
| | - Shoko ENDO
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Kayoko TAMURA
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Shigenobu YANO
- Graduate School of Human Culture, Nara Women’s University
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Fukumoto T, Kikuchi A, Umakoshi K, Sasaki Y. Preparation and properties of a series of (μ-oxo)di(μ-acetato) diruthenium(III) complexes, [Ru2(μ-O)(μ-CH3COO)2(pyridine)4(L)2]2+ and [Ru2(μ-O)(μ-CH3COO)2(AA)2(L)2]2+, where AA is 2,2′-bipyridine or 1,10-phenanthroline, and L is a monodentate ligand. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(98)00095-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Barral M, Jiménez-Aparicio R, Priego J, Royer E, Urbanos F. Liquid secondary ion mass spectrometric study of diruthenium(II,III) complexes. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)06125-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Larionova J, Mombelli B, Sanchiz J, Kahn O. Magnetic Properties of the Two-Dimensional Bimetallic Compounds (NBu4)[MIIRuIII(ox)3] (NBu4 = Tetra-n-butylammonium; M = Mn, Fe, Cu; ox = Oxalate). Inorg Chem 1998. [DOI: 10.1021/ic970531x] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joulia Larionova
- Laboratoire des Sciences Moléculaires, Institut de Chimie de la Matière Condensée de Bordeaux, UPR CNRS No. 9048, 33608 Pessac, France
| | - Bruno Mombelli
- Laboratoire des Sciences Moléculaires, Institut de Chimie de la Matière Condensée de Bordeaux, UPR CNRS No. 9048, 33608 Pessac, France
| | - Joaquín Sanchiz
- Laboratoire des Sciences Moléculaires, Institut de Chimie de la Matière Condensée de Bordeaux, UPR CNRS No. 9048, 33608 Pessac, France
| | - Olivier Kahn
- Laboratoire des Sciences Moléculaires, Institut de Chimie de la Matière Condensée de Bordeaux, UPR CNRS No. 9048, 33608 Pessac, France
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Sudha C, Mandal SK, Chakravarty AR. Synthesis, X-ray Structures, and Spectroscopic and Electrochemical Properties of (μ-Oxo)bis(μ-carboxylato)diruthenium Complexes Having Six Imidazole Bases as Terminal Ligands. Inorg Chem 1998. [DOI: 10.1021/ic970390z] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chellamma Sudha
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, India
| | - Sisir K. Mandal
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, India
| | - Akhil R. Chakravarty
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560 012, India
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