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Wang JH, Li ZY, Yamashita M, Bu XH. Recent progress on cyano-bridged transition-metal-based single-molecule magnets and single-chain magnets. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213617] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Acher E, Dumas T, Tamain C, Boubals N, Solari PL, Guillaumont D. Inner to outer-sphere coordination of plutonium(iv) with N,N-dialkyl amide: influence of nitric acid. Dalton Trans 2018; 46:3812-3815. [PMID: 28239724 DOI: 10.1039/c7dt00031f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
N,N-Dialkylamides are extensively studied as alternative organic ligands to achieve the extraction and separation of uranium(vi) and plutonium(iv). We report here the coordination structures of the plutonium(iv) ion with N,N-di(2-ethylhexyl)-n-butanamide as a function of nitric acid concentration in the aqueous phase. The coordination structure of Pu(iv) evolves gradually with increasing nitric acid concentration from an inner-sphere with two coordinated amide ligands toward an outer-sphere hexanitrate complex with only nitrate ions in the first coordination sphere and protonated amide ligands in the outer shell.
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Affiliation(s)
- Eléonor Acher
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France.
| | - Thomas Dumas
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France.
| | - Christelle Tamain
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France.
| | - Nathalie Boubals
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France.
| | - Pier Lorenzo Solari
- Synchrotron SOLEIL, L'Orme des Merisiers, BP 48, St Aubin, 91192 Gif sur Yvette, France
| | - Dominique Guillaumont
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France.
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Acher E, Hacene Cherkaski Y, Dumas T, Tamain C, Guillaumont D, Boubals N, Javierre G, Hennig C, Solari PL, Charbonnel MC. Structures of Plutonium(IV) and Uranium(VI) with N,N-Dialkyl Amides from Crystallography, X-ray Absorption Spectra, and Theoretical Calculations. Inorg Chem 2016; 55:5558-69. [DOI: 10.1021/acs.inorgchem.6b00592] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eléonor Acher
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Yanis Hacene Cherkaski
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Thomas Dumas
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Christelle Tamain
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Dominique Guillaumont
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Nathalie Boubals
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Guilhem Javierre
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
| | - Christoph Hennig
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Bautzner Landstr. 400, 01314 Dresden, Germany
| | - Pier Lorenzo Solari
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, St Aubin, 91192 Gif sur Yvette, France
| | - Marie-Christine Charbonnel
- CEA Marcoule, Nuclear Energy Division, RadioChemistry & Processes Department, DRCP 30207 Bagnols-sur-Cèze, France Bagnols sur Cèze, France
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4
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A Review on the Structural Studies of Batteries and Host Materials by X-Ray Absorption Spectroscopy. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/938625] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This review highlights the use of the X-ray absorption spectroscopy (XAS) as a local structural tool for selected atoms in several host materials. The main characteristics of XAS to be element-sensitive and its applicability to all states of matter, including crystalline solids and amorphous and liquid states, permit an in-depth study of the structural properties of a large variety of materials. This includes intercalation materials where a host structure can accommodate guest species. Host guest equilibria are at the basis of a large variety of technological applications; in particular they have been used for energy storage, ion-exchange membranes, electrochromism, and analytical sensing. A selection of XAS experiments conducted in the field of batteries, mainly on cathodes, and applications in the field of metal hexacyanoferrates and double layered hydroxides are outlined.
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Dumas T, Charbonnel MC, Charushnikova IA, Conradson SD, Fillaux C, Hennig C, Moisy P, Petit S, Scheinost AC, Shuh DK, Tyliszczak T, Auwer CD. Multi-edge X-ray absorption spectroscopy of thorium, neptunium and plutonium hexacyanoferrate compounds. NEW J CHEM 2013. [DOI: 10.1039/c3nj00318c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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6
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D'Angelo P, Della Longa S, Arcovito A, Mancini G, Zitolo A, Chillemi G, Giachin G, Legname G, Benetti F. Effects of the pathological Q212P mutation on human prion protein non-octarepeat copper-binding site. Biochemistry 2012; 51:6068-79. [PMID: 22788868 DOI: 10.1021/bi300233n] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Prion diseases are a class of fatal neurodegenerative disorders characterized by brain spongiosis, synaptic degeneration, microglia and astrocytes activation, neuronal loss and altered redox control. These maladies can be sporadic, iatrogenic and genetic. The etiological agent is the prion, a misfolded form of the cellular prion protein, PrP(C). PrP(C) interacts with metal ions, in particular copper and zinc, through the octarepeat and non-octarepeat binding sites. The physiological implication of this interaction is still unclear, as is the role of metals in the conversion. Since prion diseases present metal dyshomeostasis and increased oxidative stress, we described the copper-binding site located in the human C-terminal domain of PrP-HuPrP(90-231), both in the wild-type protein and in the protein carrying the pathological mutation Q212P. We used the synchrotron-based X-ray absorption fine structure technique to study the Cu(II) and Cu(I) coordination geometries in the mutant, and we compared them with those obtained using the wild-type protein. By analyzing the extended X-ray absorption fine structure and the X-ray absorption near-edge structure, we highlighted changes in copper coordination induced by the point mutation Q212P in both oxidation states. While in the wild-type protein the copper-binding site has the same structure for both Cu(II) and Cu(I), in the mutant the coordination site changes drastically from the oxidized to the reduced form of the copper ion. Copper-binding sites in the mutant resemble those obtained using peptides, confirming the loss of short- and long-range interactions. These changes probably cause alterations in copper homeostasis and, consequently, in redox control.
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Affiliation(s)
- Paola D'Angelo
- Department of Chemistry, University of Rome La Sapienza, P.le Aldo Moro 5, I-00185 Rome, Italy.
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7
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D’Angelo P, Zitolo A, Pacello F, Mancini G, Proux O, Hazemann JL, Desideri A, Battistoni A. Fe-heme structure in Cu,Zn superoxide dismutase from Haemophilus ducreyi by X-ray Absorption Spectroscopy. Arch Biochem Biophys 2010; 498:43-9. [DOI: 10.1016/j.abb.2010.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 03/19/2010] [Accepted: 03/20/2010] [Indexed: 11/29/2022]
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8
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Unusual proximal heme pocket geometry in the deoxygenated Thermobifida fusca: A combined spectroscopic investigation. Biophys Chem 2010; 147:1-7. [DOI: 10.1016/j.bpc.2009.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Revised: 11/25/2009] [Accepted: 11/25/2009] [Indexed: 11/19/2022]
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9
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D’Angelo P, Lapi A, Migliorati V, Arcovito A, Benfatto M, Roscioni OM, Meyer-Klaucke W, Della-Longa S. X-ray Absorption Spectroscopy of Hemes and Hemeproteins in Solution: Multiple Scattering Analysis. Inorg Chem 2008; 47:9905-18. [DOI: 10.1021/ic800982a] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paola D’Angelo
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Andrea Lapi
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Valentina Migliorati
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Alessandro Arcovito
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Maurizio Benfatto
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Otello Maria Roscioni
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Wolfram Meyer-Klaucke
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
| | - Stefano Della-Longa
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P. le A. Moro 5, 00185 Rome, Italy, Istituto CNR di Metodologie Chimiche-IMC, Sezione Meccanismi di Reazione, Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy, Laboratori Nazionali di Frascati, INFN CP13, 00044 Frascati, Italy, Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy, European Molecular Biology Laboratory, Hamburg Unit,
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Arcovito A, Moschetti T, D’Angelo P, Mancini G, Vallone B, Brunori M, Della Longa S. An X-ray diffraction and X-ray absorption spectroscopy joint study of neuroglobin. Arch Biochem Biophys 2008; 475:7-13. [DOI: 10.1016/j.abb.2008.03.026] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Revised: 03/25/2008] [Accepted: 03/25/2008] [Indexed: 11/26/2022]
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11
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Giorgetti M, Berrettoni M. Structure of Fe/Co/Ni Hexacyanoferrate As Probed by Multiple Edge X-ray Absorption Spectroscopy. Inorg Chem 2008; 47:6001-8. [DOI: 10.1021/ic800289c] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marco Giorgetti
- Dipartimento di Chimica Fisica ed Inorganica, Alma Mater Studiorum, Università di Bologna and Unità di Ricerca INSTM di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Mario Berrettoni
- Dipartimento di Chimica Fisica ed Inorganica, Alma Mater Studiorum, Università di Bologna and Unità di Ricerca INSTM di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
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12
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Affiliation(s)
- Eunsuk Kim
- Department of Chemistry, Johns Hopkins University, Charles and 34th Streets, Baltimore, Maryland 21218, USA
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13
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D'Angelo P, Lucarelli D, della Longa S, Benfatto M, Hazemann JL, Feis A, Smulevich G, Ilari A, Bonamore A, Boffi A. Unusual heme iron-lipid acyl chain coordination in Escherichia coli flavohemoglobin. Biophys J 2004; 86:3882-92. [PMID: 15189885 PMCID: PMC1304290 DOI: 10.1529/biophysj.103.034876] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2003] [Accepted: 01/05/2004] [Indexed: 11/18/2022] Open
Abstract
Escherichia coli flavohemoglobin is endowed with the notable property of binding specifically unsaturated and/or cyclopropanated fatty acids both as free acids or incorporated into a phospholipid molecule. Unsaturated or cyclopropanated fatty acid binding to the ferric heme results in a spectral change observed in the visible absorption, resonance Raman, extended x-ray absorption fine spectroscopy (EXAFS), and x-ray absorption near edge spectroscopy (XANES) spectra. Resonance Raman spectra, measured on the flavohemoglobin heme domain, demonstrate that the lipid (linoleic acid or total lipid extracts)-induced spectral signals correspond to a transition from a five-coordinated (typical of the ligand-free protein) to a hexacoordinated, high spin heme iron. EXAFS and XANES measurements have been carried out both on the lipid-free and on the lipid-bound protein to assign the nature of ligand in the sixth coordination position of the ferric heme iron. EXAFS data analysis is consistent with the presence of a couple of atoms in the sixth coordination position at 2.7 A in the lipid-bound derivative (bonding interaction), whereas a contribution at 3.54 A (nonbonding interaction) can be singled out in the lipid-free protein. This last contribution is assigned to the CD1 carbon atoms of the distal LeuE11, in full agreement with crystallographic data on the lipid-free protein at 1.6 A resolution obtained in the present work. Thus, the contributions at 2.7 A distance from the heme iron are assigned to a couple of carbon atoms of the lipid acyl chain, possibly corresponding to the unsaturated carbons of the linoleic acid.
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Affiliation(s)
- Paola D'Angelo
- Department of Chemistry University "La Sapienza", Rome, and Istituto Nazionale per la Fisica della Materia UdF, Camerino, Italy
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14
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Nuzzo S, Meneghini C, Mobilioo S, Haas H, Riccio P, Fasano A, Cavatorta P, Morante S. An x-ray absorption spectroscopy study of the zinc environment in Langmuir-Blodgett phospholipid multilayers. Biophys J 2002; 83:3507-12. [PMID: 12496117 PMCID: PMC1302425 DOI: 10.1016/s0006-3495(02)75350-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
For the first time x-ray absorption spectroscopy was used to investigate the Zn environment in Langmuir-Blodgett multilayers. The multilayers were taken as a model of the multilamellar structure of the myelin sheath, the membrane surrounding the nerve axon, which plays a crucial role for signal transduction along the axon. The layers were assembled from the phospholipid dilauroylphosphatidic acid, both in the presence and in the absence of myelin basic protein. The analysis of the extended x-ray absorption fine structure and of the near edge regions of the x-ray absorption spectra at the Zn K-edge provided an accurate description of the local structure showing that the Zn ions are bound to the heads of the phospholipid molecules. The myelin basic protein induces a distortion on the Zn local environment due to a steric constraint but does not substitute the phosphate headgroups. These findings represent an important step in understanding the interplay among myelin basic protein, Zn, and the lipids of the myelin sheath.
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Affiliation(s)
- S Nuzzo
- Dipartimento di Fisica, University of Napoli, Naples, Italy
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15
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Culp JT, Park JH, Stratakis D, Meisel MW, Talham DR. Supramolecular assembly at interfaces: formation of an extended two-dimensional coordinate covalent square grid network at the air-water interface. J Am Chem Soc 2002; 124:10083-90. [PMID: 12188672 DOI: 10.1021/ja026312e] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of a Langmuir monolayer of an amphiphilic pentacyanoferrate(3+) complex with Ni(2+) ions from the subphase results in the formation of a two-dimensional iron-nickel cyanide-bridged network at the air-water interface. The network can be transferred to various supports to form monolayer or multilayer lamellar films by the Langmuir-Blodgett (LB) technique. The same network does not form from homogeneous reaction conditions. Therefore, the results demonstrate the potential utility of an interface as a structure director in the assembly of low dimensional coordinate covalent network solids. Characterization of the LB film extended networks by X-ray photoelectron spectroscopy (XPS), FT-IR spectroscopy, SQUID magnetometry, X-ray absorption fine structure (XAFS), and grazing incidence synchrotron X-ray diffraction (GIXD) revealed a face-centered square grid structure with an average domain size of 3600 A(2). Magnetic measurements indicated that the network undergoes a transition to a ferromagnetic state below a T(c) of 8 K.
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Affiliation(s)
- Jeffrey T Culp
- Department of Chemistry, University of Florida, Gainesville 32611-7200, USA
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16
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Díaz-Moreno S, Muñoz-Páez A, Sánchez Marcos E. X-ray Absorption Spectroscopy Study of the In-Solution Structure of Ni2+, Co2+, and Ag+ Solvates in Acetonitrile Including Multiple Scattering Contributions. J Phys Chem B 2000. [DOI: 10.1021/jp002528w] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Díaz-Moreno
- European Synchrotron Radiation Facility (ESRF), 6 Jules Horowitz Grenoble CEDEX 9, France, Instituto de Ciencias de Materiales and Departmento de Química Inorgánica CSIC, Universidad de Sevilla, c/Américo Vespucio s/n, 41092-Sevilla, Spain, and Departamento de Química Física, Universidad de Sevilla, 41012-Sevilla, Spain
| | - A. Muñoz-Páez
- European Synchrotron Radiation Facility (ESRF), 6 Jules Horowitz Grenoble CEDEX 9, France, Instituto de Ciencias de Materiales and Departmento de Química Inorgánica CSIC, Universidad de Sevilla, c/Américo Vespucio s/n, 41092-Sevilla, Spain, and Departamento de Química Física, Universidad de Sevilla, 41012-Sevilla, Spain
| | - E. Sánchez Marcos
- European Synchrotron Radiation Facility (ESRF), 6 Jules Horowitz Grenoble CEDEX 9, France, Instituto de Ciencias de Materiales and Departmento de Química Inorgánica CSIC, Universidad de Sevilla, c/Américo Vespucio s/n, 41092-Sevilla, Spain, and Departamento de Química Física, Universidad de Sevilla, 41012-Sevilla, Spain
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17
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Tsubaki M, Hori H, Mogi T. Probing molecular structure of dioxygen reduction site of bacterial quinol oxidases through ligand binding to the redox metal centers. J Inorg Biochem 2000; 82:19-25. [PMID: 11132627 DOI: 10.1016/s0162-0134(00)00140-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Cytochromes bo and bd are structurally unrelated terminal ubiquinol oxidases in the aerobic respiratory chain of Escherichia coli. The high-spin heme o-CuB binuclear center serves as the dioxygen reduction site for cytochrome bo, and the heme b595-heme d binuclear center for cytochrome bd. CuB coordinates three histidine ligands and serves as a transient ligand binding site en route to high-spin heme o one-electron donor to the oxy intermediate, and a binding site for bridging ligands like cyanide. In addition, it can protect the dioxygen reduction site through binding of a peroxide ion in the resting state, and connects directly or indirectly Tyr288 and Glu286 to carry out redox-driven proton pumping in the catalytic cycle. Contrary, heme b595 of cytochrome bd participate a similar role to CuB in ligand binding and dioxygen reduction but cannot perform such versatile roles because of its rigid structure.
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Affiliation(s)
- M Tsubaki
- Department of Life Science, Faculty of Science, Himeji Institute of Technology, Akou-gun, Hyogo, Japan
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18
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Bonhoure I, Auwer CD, Moulin CCD, Moisy P, Berthet JC, Madic C. Molecular and electronic structure of An IVFe II(CN) 6· xH 2O (An = Th, U, Np) compounds: an X-ray absorption spectroscopy investigation. CAN J CHEM 2000. [DOI: 10.1139/v00-135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
AnIVFeII(CN)6·xH2O (An = Th, U, Np) molecular compounds have been prepared by precipitation from acidic media. These microcrystalline compounds have been characterized by infrared spectroscopy, X-ray diffraction, and X-ray absorption spectroscopy. They have been found to be isostructural with the LnIIIKFeII(CN)6·4H2O compounds. The molecular structures of these compounds are presented and their chemical formulas are given: in all compounds, the Fe(CN)6octahedra is conserved and the An ion is linked to the N atoms of the CN ligands. The formal oxidation states are also discussed.Key words: hexacyanoferrate, actinide, EXAFS, XANES, X-ray absorption spectroscopy.
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20
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Meneghini C, Morante S. The active site structure of tetanus neurotoxin resolved by multiple scattering analysis in X-Ray absorption spectroscopy. Biophys J 1998; 75:1953-63. [PMID: 9746536 PMCID: PMC1299866 DOI: 10.1016/s0006-3495(98)77636-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
A detailed study of the x-ray absorption spectrum of tetanus neurotoxin in the K-edge EXAFS region of the zinc absorber is presented that allows the complete identification of the amino acid residues coordinated to the zinc active site. A very satisfactory interpretation of the experimental data can be given if multiple scattering contributions are included in the analysis. Comparing the absorption spectrum of tetanus neurotoxin to that of two other structurally similar zinc-endopeptidases, thermolysin and astacin, in which the zinc coordination mode is known from crystallographic data, we conclude that in tetanus neurotoxin, besides a water molecule, zinc is coordinated to two histidines and a tyrosine.
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Affiliation(s)
- C Meneghini
- Laboratori Nazionali di Frascati INFN, 00044 Frascati, Italy
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Lim BS, Holm RH. Molecular Heme-Cyanide-Copper Bridged Assemblies: Linkage Isomerism, Trends in nu(CN) Values, and Relation to the Heme-a(3)/Cu(B) Site in Cyanide-Inhibited Heme-Copper Oxidases. Inorg Chem 1998; 37:4898-4908. [PMID: 11670655 DOI: 10.1021/ic9801793] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bovine heart cytochrome c oxidase and related heme copper oxidases are inhibited by cyanide, which binds at the binuclear heme-a(3)/Cu(B) site where dioxygen is reduced to water. To determine the mode of cyanide binding, heme-based binuclear complexes containing iron-cyanide-copper bridges in different oxidation states have been prepared by the reaction of [(py)(OEP)Fe(CN)] with Cu(II,I) precursors and structurally characterized by X-ray methods. Structures of two precursor complexes and two binuclear Cu(I)-CN-Cu(I) species are reported. The assembly [(py)(OEP)Fe-CN-Cu(Npy(3))](2+) has a nearly linear Fe(III)-CN-Cu(II) bridge containing low-spin Fe(III). The assemblies [(OEP)Fe-NC-Cu(MeNpy(2))](+) and [(OEP-CH(2)CN)Fe-NC-Cu(Npy(3))](+) exhibit the high-spin bridges Fe(III)-NC-Cu(I) and Fe(II)-NC-Cu(I), respectively. These are the first title bridges in these oxidation states. Bridge atom sequences are obtained from structural refinements of both linkage isomers; those for the reduced bridges are consistent with the soft-acid nature of Cu(I). Cyanide stretching frequencies respond to metal oxidation state and bridge geometry and, using data for solution and solid states, fall into the following ranges: Fe(III)-CN-Cu(II), 2120-2184 cm(-)(1) (11 examples); Fe(III)-NC-Cu(I), 2072-2100 cm(-)(1) (2 examples); Fe(II)-NC-Cu(I), 2099-2107 cm(-)(1) (1 example). These data are compared with nu(CN) values for the enzymes in different oxidation states. A nonlinear Fe(III)-CN-Cu(II) bridge (Cu-N-C = 150-160 degrees ) is consistent with the 2146-2152 cm(-)(1) range found for the fully oxidized enzymes. Bands that can be assigned with some certainty as Fe-CN vibrations in partially and fully reduced enzymes do not appear to correspond to Fe(III)-NC-Cu(I) and Fe(II)-NC-Cu(I) bridges but rather to Fe(II)-CN modes. The current work complements and extends our previous investigation (Scott and Holm, J. Am. Chem. Soc. 1994, 116, 11357) of linear and nonlinear Fe(III)-CN-Cu(II) bridges and is part of an investigation directed at providing a molecular basis of cyanide toxicity. (MeNpy(2) = bis(2-(2-pyridylethyl))methylamine; Npy(3) = tris(2-pyridylmethyl)amine; OEP = octaethylporphyrinate(2-), OEP-CH(2)CN = N-(cyanomethyl)octaethylporphyrinate(1-).)
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Affiliation(s)
- Booyong S. Lim
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
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22
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Díaz-Moreno S, Martínez JM, Muñoz-Páez A, Sakane H, Watanabe I. Molecular Structure Determination by EXAFS of [Y(NCS)6]3- Units in Solid State and in Solution. A Comparison with Density Functional Theory Calculations. J Phys Chem A 1998. [DOI: 10.1021/jp982125k] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sofía Díaz-Moreno
- Instituto de Ciencia de Materiales, C.S.I.C-Universidad de Sevilla, c/Americo Vespucio, s/n 41092 Sevilla, Spain, Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan, and Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - José M. Martínez
- Instituto de Ciencia de Materiales, C.S.I.C-Universidad de Sevilla, c/Americo Vespucio, s/n 41092 Sevilla, Spain, Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan, and Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Adela Muñoz-Páez
- Instituto de Ciencia de Materiales, C.S.I.C-Universidad de Sevilla, c/Americo Vespucio, s/n 41092 Sevilla, Spain, Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan, and Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Hideto Sakane
- Instituto de Ciencia de Materiales, C.S.I.C-Universidad de Sevilla, c/Americo Vespucio, s/n 41092 Sevilla, Spain, Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan, and Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Iwao Watanabe
- Instituto de Ciencia de Materiales, C.S.I.C-Universidad de Sevilla, c/Americo Vespucio, s/n 41092 Sevilla, Spain, Departamento de Química Física, Universidad de Sevilla, 41012 Sevilla, Spain, Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan, and Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
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George GN, Hedman B, Hodgson KO. An edge with XAS. NATURE STRUCTURAL BIOLOGY 1998; 5 Suppl:645-7. [PMID: 9699615 DOI: 10.1038/1336] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- G N George
- Stanford Synchrotron Radiation Laboratory, California 94309, USA.
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Weller M, Pack M, Binsted N. Bestimmung der fehlgeordneten Struktur von Gd2Ba2CaCu2Ti3O14 mit EXAFS-Spektren mehrerer Elemente und Pulverdiffraktogrammen. Angew Chem Int Ed Engl 1998. [DOI: 10.1002/(sici)1521-3757(19980420)110:8<1193::aid-ange1193>3.0.co;2-a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sasaki T, Nakamura N, Naruta Y. Formation and Spectroscopic Characterization of the PeroxoFeIII-CuIIComplex. A Modeling Reaction of the Heme-Cu Site in Cytochrome c Oxidase. CHEM LETT 1998. [DOI: 10.1246/cl.1998.351] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Giorgetti M, Berrettoni M, Filipponi A, Kulesza PJ, Marassi R. Evidence of four-body contributions in the EXAFS spectrum of Na2Co[Fe(CN)6]. Chem Phys Lett 1997. [DOI: 10.1016/s0009-2614(97)00724-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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