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Braunschweig H, Dewhurst RD, Hupp F, Schneider C. Silver(i) and thallium(i) cations as unsupported bridges between two metal bases. Chem Commun (Camb) 2014; 50:15685-8. [DOI: 10.1039/c4cc08508f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Martic M, Jakab-Simon IN, Haahr LT, Hagen WR, Christensen HEM. Heterometallic [AgFe(3)S (4)] ferredoxin variants: synthesis, characterization, and the first crystal structure of an engineered heterometallic iron-sulfur protein. J Biol Inorg Chem 2013; 18:261-276. [PMID: 23296387 DOI: 10.1007/s00775-012-0971-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Accepted: 12/04/2012] [Indexed: 01/12/2023]
Abstract
Heterometallic [AgFe(3)S(4)] iron-sulfur clusters assembled in wild-type Pyrococcus furiosus ferredoxin and two variants, D14C and D14H, are characterized. The crystal structure of the [AgFe(3)S(4)] D14C variant shows that the silver(I) ion is indeed part of the cluster and is coordinated to the thiolate group of residue 14. Cyclic voltammetry shows one redox pair with a reduction potential of +220 mV versus the standard hydrogen electrode which is assigned to the [AgFe(3)S(4)](2+/+) couple. The oxidized form of the [AgFe(3)S(4)] D14C variant is stable in the presence of dioxygen, whereas the oxidized forms of the [AgFe(3)S(4)] wild type and D14H variants convert to the [Fe(3)S(4)] ferredoxin form. The monovalent d (10) silver(I) ion stabilizes the [Fe(3)S(4)](+/0) cluster fragment, as opposed to divalent d (10) metal ions, resulting in more than 0.4 V difference in reduction potentials between the silver(I) and, e.g., zinc(II) heterometallic [MFe(3)S(4)] ferredoxins. The trend in reduction potentials for the variants containing the [AgFe(3)S(4)] cluster is wild type ≤ D14C < D14H and shows the same trend as reported for the variants containing the [Fe(3)S(4)] cluster, but is different from the D14C < D14H < wild type trend reported for the [Fe(4)S(4)] ferredoxin. The similarity in the reduction potential trend for the variants containing the heterometallic [AgFe(3)S(4)] cluster and the [Fe(3)S(4)] cluster can be rationalized in terms of the electrostatic influence of the residue 14 side chains, rather than the dissociation constant of this residue, as is the case for [Fe(4)S(4)] ferredoxins. The trends in reduction potentials are in line with there being no electronic coupling between the silver(I) ion and the Fe(3)S(4) fragment.
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Affiliation(s)
- Maja Martic
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800, Kongens Lyngby, Denmark
| | - Ida Noémi Jakab-Simon
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800, Kongens Lyngby, Denmark
| | - Lærke Tvedebrink Haahr
- Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800, Kongens Lyngby, Denmark
| | - Wilfred Raymond Hagen
- Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC, Delft, The Netherlands
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Holloway CE, Melnik M, Nevin WA, Liu W. SILVER COORDINATION AND ORGANOMETALLIC COMPOUNDS: CLASSIFICATION AND ANALYSIS OF CRYSTALLOGRAPHIC AND STRUCTURAL DATA. J COORD CHEM 2006. [DOI: 10.1080/00958979508033088] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hintermaier F, Mihan S, Gerdan M, Schünemann V, Trautwein A, Beck W. Synthesis, Structure, and Magnetic Properties of a 2,2‐Dipyridyl‐2,5‐dihydro‐imidazole‐1‐oxyl‐(L‐)Bridged Disilver Complex [Ag
2
L
2
](SbF
6
)
2
: A Four‐Membered Ring from two Ag(I) Ions and two Imine Nitrogen Atoms. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19961290515] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Frank Hintermaier
- Institut für Anorganische Chemie der Universität München, Meiserstraße 1, D‐80333 München, Germany
| | - Shahram Mihan
- Institut für Anorganische Chemie der Universität München, Meiserstraße 1, D‐80333 München, Germany
| | - Michael Gerdan
- Institut für Physik, Medizinische Universität zu Lübeck, Ratzeburger Allee 160, D‐23538 Lübeck, Germany
| | - Volker Schünemann
- Institut für Physik, Medizinische Universität zu Lübeck, Ratzeburger Allee 160, D‐23538 Lübeck, Germany
| | - Alfred Trautwein
- Institut für Physik, Medizinische Universität zu Lübeck, Ratzeburger Allee 160, D‐23538 Lübeck, Germany
| | - Wolfgang Beck
- Institut für Anorganische Chemie der Universität München, Meiserstraße 1, D‐80333 München, Germany
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Oh SW, Bernard GM, Wasylishen RE, McDonald R, Ferguson MJ. A multinuclear solid-state magnetic resonance study of silver nitrate triphenylphosphine. CAN J CHEM 2005. [DOI: 10.1139/v05-174] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Variable-temperature solid-state31P,15N, and2H NMR spectroscopy, X-ray diffraction, and differential scanning calorimetry studies of the 1:1 adduct of silver nitrate and triphenylphosphine (AgNO3·PPh3) reveal a solidsolid phase transition at 300 K. The principal components of the phosphorus and nitrogen chemical shift tensors for both phases are determined from NMR spectra of MAS and stationary samples. In addition, the indirect spin-spin coupling between phosphorus and the naturally occurring isotopes of silver (107Ag and109Ag) are resolved. Experimental2H NMR line shapes for silver nitrate perdeuterated triphenylphosphine are those characteristic of rigid phenyl groups at temperatures above and below the phase-transition temperature. Powder and single-crystal X-ray diffraction data for AgNO3·PPh3obtained at 193, 295, and 313 K are reported; data obtained at 193 and 295 K are almost identical, but are significantly different from those obtained at 313 K and from an earlier single-crystal X-ray diffraction investigation performed at 298 K. All X-ray studies found that AgNO3·PPh3crystallizes in the monoclinic form, space group P21/c.Key words: 1:1 silver nitrate triphenylphosphine adduct, solid-state NMR, X-ray diffraction, phase transition.
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Carmona D, Viguri F, Lahoz FJ, Oro LA. Synthesis and molecular structure of [[(HBpz(3))Rh(PPh(3))(mu-Cl)(2)](2)Ag]BF(4) (Hpz = pyrazole), a heterotrinuclear Rh(2)Ag compound with square-planar silver(I). Inorg Chem 2002; 41:2385-8. [PMID: 11978103 DOI: 10.1021/ic011217c] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of [(HBpz(3))RhCl(2)(PPh(3))] (Hpz = pyrazole) with silver salts AgA (A = BF(4), NO(3), SbF(6)) affords the unexpected heterotrinuclear compounds [[(HBpz(3))Rh(PPh(3))(mu-Cl)(2)](2)Ag]A (A = BF(4) (1), NO(3) (2), SbF(6) (3)). The compounds have been fully characterized by IR, (1)H, (31)P[(1)H], and (13)C[(1)H] NMR spectroscopy and FAB(+) mass spectrometry. The solid structure of compound 1 was determined by single-crystal X-ray diffraction. The cation consists of two (HBpz(3))RhCl(2)(PPh(3)) units bonded to a silver atom through two double mu-Cl bridges in an unusual distorted square-planar arrangement.
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Affiliation(s)
- Daniel Carmona
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-Consejo Superior de Investigaciones Científicas, 50009 Zaragoza, Spain.
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Albinati A, Chaloupka S, Currao A, Klooster WT, Koetzle TF, Nesper R, Venanzi LM. Structural studies of the hydrido-bridged iridium gold complexes ‘IrHm{CH3C(CH2PPh2)3}{Au(PR3)}n’. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(00)00004-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Synthesis, chemical characterisation and molecular structure of [Ag3{μ3-Fe(CO)4}(dppm)3][NO3] and [Au3{μ-Fe(CO)4}(dppm)2][Cl]. J Organomet Chem 1999. [DOI: 10.1016/s0022-328x(98)00832-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Albano VG, Iapalucci MC, Longoni G, Monari M, Paselli A, Zacchini S. Synthesis, Chemical Characterization, and Molecular Structures of Ag8Fe4(CO)16(dppm)2 and Ag4Au4Fe4(CO)16(dppe)2. Organometallics 1998. [DOI: 10.1021/om980151z] [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)
- Vincenzo G. Albano
- Dipartimento di Chimica “G.Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy, and Dipartimento di Chimica Fisica ed Inorganica, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy
| | - M. Carmela Iapalucci
- Dipartimento di Chimica “G.Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy, and Dipartimento di Chimica Fisica ed Inorganica, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy
| | - Giuliano Longoni
- Dipartimento di Chimica “G.Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy, and Dipartimento di Chimica Fisica ed Inorganica, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy
| | - Magda Monari
- Dipartimento di Chimica “G.Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy, and Dipartimento di Chimica Fisica ed Inorganica, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy
| | - Alessandro Paselli
- Dipartimento di Chimica “G.Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy, and Dipartimento di Chimica Fisica ed Inorganica, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy
| | - Stefano Zacchini
- Dipartimento di Chimica “G.Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy, and Dipartimento di Chimica Fisica ed Inorganica, University of Bologna, viale Risorgimento 4, 40136 Bologna, Italy
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Affiliation(s)
- Pekka Pyykkö
- Department of Chemistry, University of Helsinki, P.O.B. 55 (A.I. Virtasen aukio 1), FIN-00014 Helsinki, Finland
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Holloway, CE, Melnik, M. Manganese Coordination Compounds: Classification and Analysis of Crystallographic and Structural Data. REV INORG CHEM 1996. [DOI: 10.1515/revic.1996.16.2-3.101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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