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Shiekh BA, Kaur D, Godara SK. Unprecedented synthesis of symmetrical azines from alcohols and hydrazine hydrate using nickel based NNN-pincer catalyst: An experimental and computational study. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.02.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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2
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Wang H, Lin Y, Li Y, Dolgormaa A, Fang H, Guo L, Huang J, Yang J. A Novel Magnetic Cd(II) Ion-Imprinted Polymer as a Selective Sorbent for the Removal of Cadmium Ions from Aqueous Solution. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01148-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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3
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Beirakhov AG, Rotov AV. Structural Features of Uranyl Hydroxylaminate and Oximate Complexes. RUSS J INORG CHEM+ 2018. [DOI: 10.1134/s0036023618130028] [Citation(s) in RCA: 2] [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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4
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Feng C, Commodore JJ, Cassady CJ. The use of chromium(III) to supercharge peptides by protonation at low basicity sites. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:347-58. [PMID: 25395012 PMCID: PMC4323856 DOI: 10.1007/s13361-014-1020-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/09/2014] [Accepted: 10/13/2014] [Indexed: 05/16/2023]
Abstract
The addition of chromium(III) nitrate to solutions of peptides with seven or more residues greatly increases the formation of doubly protonated peptides, [M + 2H](2+), by electrospray ionization. The test compound heptaalanine has only one highly basic site (the N-terminal amino group) and undergoes almost exclusive single protonation using standard solvents. When Cr(III) is added to the solution, abundant [M + 2H](2+) forms, which involves protonation of the peptide backbone or the C-terminus. Salts of Al(III), Mn(II), Fe(III), Fe(II), Cu(II), Zn (II), Rh(III), La(III), Ce(IV), and Eu(III) were also studied. Although several metal ions slightly enhance protonation, Cr(III) has by far the greatest ability to generate [M + 2H](2+). Cr(III) does not supercharge peptide methyl esters, which suggests that the mechanism involves interaction of Cr(III) with a carboxylic acid group. Other factors may include the high acidity of hexa-aquochromium(III) and the resistance of Cr(III) to reduction. Nitrate salts enhance protonation more than chloride salts and a molar ratio of 10:1 Cr(III):peptide produces the most intense [M + 2H](2+). Cr(III) also supercharges numerous other small peptides, including highly acidic species. For basic peptides, Cr(III) increases the charge state (2+ versus 1+) and causes the number of peptide molecules being protonated to double or triple. Chromium(III) does not supercharge the proteins cytochrome c and myoglobin. The ability of Cr(III) to enhance [M + 2H](2+) intensity may prove useful in tandem mass spectrometry because of the resulting overall increase in signal-to-noise ratio, the fact that [M + 2H](2+) generally dissociate more readily than [M + H](+), and the ability to produce [M + 2H](2+) precursors for electron-based dissociation techniques.
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Affiliation(s)
- Changgeng Feng
- Department of Chemistry, The University of Alabama, Tuscaloosa, AL, 35487, USA
| | | | - Carolyn J. Cassady
- Department of Chemistry, The University of Alabama, Tuscaloosa, AL, 35487, USA
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5
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Di Fiore A, Vergara A, Caterino M, Alterio V, Monti SM, Ombouma J, Dumy P, Vullo D, Supuran CT, Winum JY, De Simone G. Hydroxylamine-O-sulfonamide is a versatile lead compound for the development of carbonic anhydrase inhibitors. Chem Commun (Camb) 2015; 51:11519-22. [DOI: 10.1039/c5cc03711e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxylamine-O-sulfonamide has been investigated as CA inhibitor by means of kinetic and structural studies clarifying its mechanism of action.
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Affiliation(s)
- Anna Di Fiore
- Istituto di Biostrutture e Bioimmagini-CNR
- 80134 Napoli
- Italy
| | - Alessandro Vergara
- Istituto di Biostrutture e Bioimmagini-CNR
- 80134 Napoli
- Italy
- Department of Chemical Sciences
- Napoli
| | | | | | | | - Joanna Ombouma
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS
- ENSCM
- Université de Montpellier
- Bâtiment de Recherche Max Mousseron
- Ecole Nationale Supérieure de Chimie de Montpellier
| | - Pascal Dumy
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS
- ENSCM
- Université de Montpellier
- Bâtiment de Recherche Max Mousseron
- Ecole Nationale Supérieure de Chimie de Montpellier
| | - Daniela Vullo
- Università degli Studi di Firenze
- Polo Scientifico
- Laboratorio di Chimica Bioinorganica
- Florence
- Italy
| | - Claudiu T. Supuran
- Università degli Studi di Firenze
- Polo Scientifico
- Laboratorio di Chimica Bioinorganica
- Florence
- Italy
| | - Jean-Yves Winum
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS
- ENSCM
- Université de Montpellier
- Bâtiment de Recherche Max Mousseron
- Ecole Nationale Supérieure de Chimie de Montpellier
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Tziouris PA, Tsiafoulis CG, Vlasiou M, Miras HN, Sigalas MP, Keramidas AD, Kabanos TA. Interaction of chromium(III) with a N,N'-disubstituted hydroxylamine-(diamido) ligand: a combined experimental and theoretical study. Inorg Chem 2014; 53:11404-14. [PMID: 25329981 DOI: 10.1021/ic501778d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of hydroxylamine hydrochloride with prop-2-enamide in dichloromethane in the presence of triethylamine resulted in the isolation of the N,N'-disubstituted hydroxylamine-(diamido) ligand, 3,3'-(hydroxyazanediyl)dipropanamide (Hhydia). The ligand Hhydia was characterized by multinuclear NMR, high-resolution electrospray ionization mass spectrometry (ESI-MS), and X-ray structure analysis. Interaction of Hhydia with trans-[Cr(III)Cl2(H2O)4]Cl·2H2O in ethanol yields the ionization isomers [Cr(III)(Hhydia)2]Cl3·2H2O(1·2H2O) and cis/trans-[Cr(III)Cl2(Hhydia)2]Cl·2H2O (2·2H2O). The X-ray structure analysis of 1 revealed that the chromium atom in [Cr(III)(Hhydia)2](3+) is bonded to two neutral tridentate O,N,O-Hhydia ligands. The twist angle, θ, in [Cr(III)(Hhydia)2](3+) is 54.5(6)(0), that is, very close to an ideal octahedron. The intramolecular hydrogen bonds developed between the N-OH group of the first ligand and the amidic oxygen atom of the second ligand and vice versa contribute to the overall stability of the cation [Cr(III)(Hhydia)2](3+). The reaction rate constant of the formation of Cr(III) complexes 1·2H2O and 2·2H2O was found to be 8.7(±0.8) × 10(-5) M(-1) s(-1) at 25 °C in methyl alcohol and follows a first-order law kinetics based on the biologically relevant ligand Hhydia. The reaction rate constant is considerably faster in comparison with the corresponding water exchange rate constant for the hydrated chromium(III). The modification of the kinetics is of fundamental importance for the chromium(III) chemistry in biological systems. Ultraviolet-visible and electron paramagnetic resonance studies, both in solution and in the solid state, ESI-MS, and conductivity measurements support the fact that, irrespective of the solvent used in the interaction of Hhydia with trans-[Cr(III)Cl2(H2O)4]Cl·2H2O, the ionization isomers[Cr(III)(Hhydia)2]Cl3·2H2O (1·2H2O) and cis/trans-[Cr(III)Cl2(Hhydia)2]Cl·2H2O (2·2H2O) are produced.The reaction medium affects only the relevant percentage of the isomers in the solid state. The thermodynamic stability of the ionization isomers 1·2H2O and cis/trans-2·2H2O, their molecular structures as well as the vibrational spectra and the energetics of the Cr(III)- Hhydia/hydia(-) were studied by means of density functional theory calculations and found to be in excellent agreement with our experimental observations.
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Affiliation(s)
- Petros A Tziouris
- Section of Inorganic and Analytical Chemistry, Department of Chemistry and #NMR Center, University of Ioannina , Ioannina 45110, Greece
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7
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Stylianou M, Nikolakis VA, Chilas GI, Jakusch T, Vaimakis T, Kiss T, Sigalas MP, Keramidas AD, Kabanos TA. Molybdenum(VI) Coordination Chemistry of the N,N-Disubstituted Bis(hydroxylamido)-1,3,5-triazine Ligand, H2bihyat. Water-Assisted Activation of the MoVI═O Bond and Reversible Dimerization of cis-[MoVIO2(bihyat)] to [MoVI2O4(bihyat)2(H2O)2]. Inorg Chem 2012; 51:13138-47. [DOI: 10.1021/ic301282q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marios Stylianou
- Department of Chemistry, University of Cyprus, Nicosia 1678,
Cyprus
| | - Vladimiros A. Nikolakis
- Section of Inorganic
and Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
| | - George I. Chilas
- Section of Inorganic
and Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
| | - Tamas Jakusch
- Department of Inorganic
and Analytical Chemistry, University of Szeged, Szeged, Hungary
| | - Tiverios Vaimakis
- Section of Inorganic
and Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
| | - Tamas Kiss
- Department of Inorganic
and Analytical Chemistry, University of Szeged, Szeged, Hungary
| | - Michael P. Sigalas
- Laboratory of Applied Quantum
Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki
54124, Greece
| | | | - Themistoklis A. Kabanos
- Section of Inorganic
and Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
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Pawlak PL, Panda M, Loloee R, Kucera BE, Costes JP, Tuchagues JP, Chavez FA. New binuclear MnII and FeII complexes supported by 1,4,8-triazacycloundecane. Dalton Trans 2011; 40:2926-31. [DOI: 10.1039/c0dt01379j] [Citation(s) in RCA: 12] [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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9
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Bräuer B, Schaarschmidt D, Flohrer C, Rüffer T, Tripke S, Hildebrandt A, Walfort B, Sorace L, Lang H. A dimanganese(II) complex with bridging chlorides: Synthesis, electrochemistry, magnetic behavior, structure and bonding. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.09.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Hellmann BJ, Mix A, Neumann B, Stammler H, Mitzel NW. AlMe
3
, GaMe
3
and InMe
3
Adducts of
N
,
N
‐Bis(2‐{pyrid‐2‐yl}ethyl)hydroxylaminato Rare‐Earth Metal Complexes and Their Molecular Dynamics. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000121] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Benjamin J. Hellmann
- Anorganische Chemie und Strukturchemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany, Fax: +49‐521‐106‐6182 http://www.uni‐bielefeld.de/chemie/ac3/ak‐mitzel/start.html
| | - Andreas Mix
- Anorganische Chemie und Strukturchemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany, Fax: +49‐521‐106‐6182 http://www.uni‐bielefeld.de/chemie/ac3/ak‐mitzel/start.html
| | - Beate Neumann
- Anorganische Chemie und Strukturchemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany, Fax: +49‐521‐106‐6182 http://www.uni‐bielefeld.de/chemie/ac3/ak‐mitzel/start.html
| | - Hans‐Georg Stammler
- Anorganische Chemie und Strukturchemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany, Fax: +49‐521‐106‐6182 http://www.uni‐bielefeld.de/chemie/ac3/ak‐mitzel/start.html
| | - Norbert W. Mitzel
- Anorganische Chemie und Strukturchemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany, Fax: +49‐521‐106‐6182 http://www.uni‐bielefeld.de/chemie/ac3/ak‐mitzel/start.html
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11
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Nikolakis VA, Exarchou V, Jakusch T, Woolins JD, Slawin AMZ, Kiss T, Kabanos TA. Tris-(hydroxyamino)triazines: high-affinity chelating tridentate O,N,O-hydroxylamine ligand for the cis-VVO2+ cation. Dalton Trans 2010; 39:9032-8. [DOI: 10.1039/c0dt00574f] [Citation(s) in RCA: 13] [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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12
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Nikolakis VA, Stathopoulos P, Exarchou V, Gallos JK, Kubicki M, Kabanos TA. Unexpected Synthesis of an Unsymmetrical μ-Oxido Divanadium(V) Compound through a Reductive Cleavage of a N−O Bond and Cleavage-Hydrolysis of a C−N Bond of an N,N-Disubstituted Bis-(hydroxylamino) Ligand. Inorg Chem 2009; 49:52-61. [DOI: 10.1021/ic901809f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vladimiros A. Nikolakis
- Department of Chemistry, Section of Inorganic and Analytical Chemistry, University of Ioannina, 45110, Greece
| | - Panagiotis Stathopoulos
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, 45110, Greece
| | | | - John K. Gallos
- Department of Chemistry, Laboratory of Organic Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Maciej Kubicki
- Adam Mickiewicz University Grunwaldzka 6,60-780 Poznan, Poland
| | - Themistoklis A. Kabanos
- Department of Chemistry, Section of Inorganic and Analytical Chemistry, University of Ioannina, 45110, Greece
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13
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Hellmann B, Venugopal A, Mix A, Neumann B, Stammler HG, Willner A, Pape T, Hepp A, Mitzel N. Structural Variations and Molecular Dynamics of Rare-Earth Metal Complexes with theN,N-Bis(2-{pyrid-2-yl}ethyl)hydroxylaminato Ligand. Chemistry 2009; 15:11701-9. [DOI: 10.1002/chem.200901448] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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