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Britten J, Hearns NGR, Preuss KE, Richardson JF, Bin-Salamon S. Mn(II) and Cu(II) Complexes of a Dithiadiazolyl Radical Ligand: Monomer/Dimer Equilibria in Solution. Inorg Chem 2007; 46:3934-45. [PMID: 17441710 DOI: 10.1021/ic0619456] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Complexes of the 4-(2'-pyridyl)-1,2,3,5-dithiadiazolyl radical bidentate ligand with bis(hexafluoroacetylacetonato)manganese(II) and with bis(hexafluoroacetylacetonato)copper(II) have been prepared. Unlike the previously reported cobalt(II) complex, these complexes form dimers via intermolecular S...S contacts in the solid state. The spectroscopic and magnetic properties of these species in the solid state and in solution are reported and compared to the previously reported Co(II) complex, with emphasis on the elucidation of the a monomer/dimer equilibrium in the solution. The electrochemical properties of these species in solution are also presented and discussed.
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Affiliation(s)
- James Britten
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
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Powell DH, Merbach AE, González G, Brücher E, Micskei K, Ottaviani MF, Köhler K, Von Zelewsky A, Grinberg OY, Lebedev YS. Magnetic-Field-Dependent Electronic Relaxation of Gd3+ in Aqueous Solutions of the Complexes [Gd(H2O)8]3+, [Gd(propane-1,3-diamine-N,N,N′,N′-tetraacetate)(H2O)2]−, and [Gd(N,N′-bis[(N-methylcarbamoyl)methyl]-3-azapentane-1,5-diamine-3,N,N′-triacetate)(H2O. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19930760524] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ottaviani MF, Geniali A, Cangiotti M, Mangani F. EPR analysis of the interacting properties and the degradation over time and irradiation of mastic resin used for painting protection. RESEARCH ON CHEMICAL INTERMEDIATES 2002. [DOI: 10.1163/156856702320267055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ottaviani MF, Montalti F, Romanelli M, Turro NJ, Tomalia DA. Characterization of Starburst Dendrimers by EPR. 4. Mn(II) as a Probe of Interphase Properties. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp953261h] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Francesca Ottaviani
- Department of Chemistry, University of Florence, 50121 Florence, Italy, Department of Chemistry, Columbia University, New York, New York 10027, and Michigan Molecular Institute, Midland, Michigan 48640
| | - Fabio Montalti
- Department of Chemistry, University of Florence, 50121 Florence, Italy, Department of Chemistry, Columbia University, New York, New York 10027, and Michigan Molecular Institute, Midland, Michigan 48640
| | - Maurizio Romanelli
- Department of Chemistry, University of Florence, 50121 Florence, Italy, Department of Chemistry, Columbia University, New York, New York 10027, and Michigan Molecular Institute, Midland, Michigan 48640
| | - Nicholas J. Turro
- Department of Chemistry, University of Florence, 50121 Florence, Italy, Department of Chemistry, Columbia University, New York, New York 10027, and Michigan Molecular Institute, Midland, Michigan 48640
| | - Donald A. Tomalia
- Department of Chemistry, University of Florence, 50121 Florence, Italy, Department of Chemistry, Columbia University, New York, New York 10027, and Michigan Molecular Institute, Midland, Michigan 48640
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Field LD, George AV, Laschi F, Malouf EY, Zanello P. Electrochemistry of acetylide complexes of iron. J Organomet Chem 1992. [DOI: 10.1016/0022-328x(92)83404-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Martini G, Ottaviani M, Ristori S, Visca M. Nitroxide radicals as probes for water mobility in perfluorinated membrane. J Colloid Interface Sci 1989. [DOI: 10.1016/0021-9797(89)90386-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Johansson LBÅ, Wikander G, Lindblom G, Davidsson Å. Linear dichroism of molecules with cubic symmetry. Chem Phys 1987. [DOI: 10.1016/0301-0104(87)85105-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Bleam WF, McBride MB. The chemistry of adsorbed Cu(II) and Mn(II) in aqueous titanium dioxide suspensions. J Colloid Interface Sci 1986. [DOI: 10.1016/0021-9797(86)90388-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Laschi F, Pogliani L, Rossi C. Competition equilibria of metal ions with nucleobases: an ESR study. Inorganica Chim Acta 1984. [DOI: 10.1016/s0020-1693(00)80064-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Basosi R, Gaggelli E, Valensin G. The effect of binding divalent metal ions on the conformation of human angiotensin-II in solution as probed by nuclear and electron paramagnetic resonance investigations. J Inorg Biochem 1984; 20:263-8. [PMID: 6325596 DOI: 10.1016/0162-0134(84)85024-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The interaction between human angiotensin-II and Mn(II) ions in water solution has been delineated by nmr and esr experiments. A pH-dependent binding interaction with the imidazole moiety of His 6 has been shown, ratifying the suggestion that His 6 is involved in intramolecular structuring within the peptide molecule.
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12
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Stability of colloidal TiO2 in the presence of polyelectrolytes and divalent metal ions. ACTA ACUST UNITED AC 1983. [DOI: 10.1016/0166-6622(83)80045-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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The dynamics of a nitroxide radical in water adsorbed on porous supports studied by ESR. J Colloid Interface Sci 1983. [DOI: 10.1016/0021-9797(83)90239-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Rossi C, Casini A, Laschi F. Cu(II)Mn(II)Imidazole competing equilibria. ESR study. Inorganica Chim Acta 1983. [DOI: 10.1016/s0020-1693(00)95234-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Laschi F, Basosi R, Tiezzi E. A magnetic resonance study of metal ion coordination in ternary systems. Inorganica Chim Acta 1983. [DOI: 10.1016/s0020-1693(00)95321-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Martini G. The state of water adsorbed on silica gel as determined by ESR of transition metal ion probe. J Colloid Interface Sci 1981. [DOI: 10.1016/0021-9797(81)90157-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Vishnevskaya GP, Safin RS, Ramazanov RG, Gorozhanin VA. Electron relaxation and ESR of Mn(II) ions in the sulfonated ion-exchange resin KU-2 � 8. THEOR EXP CHEM+ 1981. [DOI: 10.1007/bf00517412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Nature of the width of ESR lines in aqueous solutions of chromic nitrate. THEOR EXP CHEM+ 1981. [DOI: 10.1007/bf01114430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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20
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The Mn(II) relaxation probe in dynamical studies on biomodel systems in water solution. Inorganica Chim Acta 1980. [DOI: 10.1016/s0020-1693(00)92158-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Electron spin relaxation and frequency-dependent lineshape analysis of the 5′—ATP—Mn(II)—Trp system. Chem Phys Lett 1979. [DOI: 10.1016/0009-2614(79)80080-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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