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Ferullo RM, Granados A, Lanterna A, Güida JA, Piro OE, Castellano EE, Dennehy M. Thiosaccharine disulfide: Synthesis, crystal structure, spectroscopic characterization and theoretical study. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.07.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chen G, Man WL, Yiu SM, Wong TW, Szeto L, Wong WT, Lau TC. Binuclear (salen)osmium phosphinidine and phosphiniminato complexes. Dalton Trans 2011; 40:1938-44. [DOI: 10.1039/c0dt01367f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Louvain N, Mercier N, Luc J, Sahraoui B. Example of Disulfide Conformational Change in the Solid State: Preparation, Optical Properties, and X-ray Studies of a Cystamine-Based Iodoplombate Hybrid. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800525] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ng SY, Leong WK, Goh LY, Webster RD. Synthesis, X‐ray Crystal Structures and Electrochemistry of (Indenyl)ruthenium Complexes Containing dppf and Heterocyclic Thiolato/Thione Ligands. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700790] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sin Yee Ng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Weng Kee Leong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Lai Yoong Goh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
- Current address: Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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Mercier N, Barres AL, Giffard M, Rau I, Kajzar F, Sahraoui B. Conglomerate-to-True-Racemate Reversible Solid-State Transition in Crystals of an Organic Disulfide-Based Iodoplumbate. Angew Chem Int Ed Engl 2006; 45:2100-3. [PMID: 16482505 DOI: 10.1002/anie.200503423] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nicolas Mercier
- Laboratoire de Chimie, Ingénierie Moléculaire et Matériaux d'Angers, UMR-CNRS 6200, Université d'Angers, 2 Boulevard Lavoisier, 49045 Angers, France.
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Mercier N, Barres AL, Giffard M, Rau I, Kajzar F, Sahraoui B. Conglomerate-to-True-Racemate Reversible Solid-State Transition in Crystals of an Organic Disulfide-Based Iodoplumbate. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503423] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wierzejewska M, Sałdyka M. Theoretical study of hydrogen bonded complexes of dimethyl disulfide or dimethyl peroxide with nitric acid. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.10.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pinheiro SO, de Sousa JR, Santiago MO, Carvalho IM, Silva AL, Batista AA, Castellano EE, Ellena J, Moreira ÍS, Diógenes IC. Synthesis, characterization and structure of ruthenium(II) phosphine complexes with N-heterocyclic thiolate ligands. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.05.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Raimondi AC, Souza VRD, Toma HE, Evans DJ, Hasegawa T, Nunes FS. Spectroscopic, redox and magnetic properties of a tetraiminediphenolate iron(II) macrocyclic complex: a model compound for iron proteins. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:1929-1932. [PMID: 15863068 DOI: 10.1016/j.saa.2004.07.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2004] [Accepted: 07/28/2004] [Indexed: 05/24/2023]
Abstract
The title complex [Fe(II)(tidf-H2)(H2O)2](ClO4)2*H(2)O (tidf-H2 = tetraiminediphenolate ligand) has been prepared from a transmetallation reaction between [Mg2(tidf)](NO3)2*4H2O and an iron(II) salt in methanolic solutions under inert atmosphere conditions. It was characterized by analytical, magnetic and spectroscopic methods (Mossbauer, FTIR, UV-vis), by cyclic voltammetry as well as spectroelectrochemistry.
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Affiliation(s)
- Angela C Raimondi
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, C.P. 19081, 81531-990 Curitiba, PR, Brazil
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Sousa EHS, Pontes DL, Diógenes ICN, Lopes LGF, Oliveira JS, Basso LA, Santos DS, Moreira IS. Electron transfer kinetics and mechanistic study of the thionicotinamide coordinated to the pentacyanoferrate(III)/(II) complexes: a model system for the in vitro activation of thioamides anti-tuberculosis drugs. J Inorg Biochem 2005; 99:368-75. [PMID: 15621268 DOI: 10.1016/j.jinorgbio.2004.10.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2004] [Revised: 09/24/2004] [Accepted: 10/05/2004] [Indexed: 11/16/2022]
Abstract
The mechanism of activation thioamide-pyridine anti-tuberculosis prodrugs is poorly described in the literature. It has recently been shown that ethionamide, an important component of second-line therapy for the treatment of multi-drug-resistant tuberculosis, is activated through an enzymatic electron transfer (ET) reaction. In an attempt to shed light on the activation of thioamide drugs, we have mimicked a redox process involving the thionicotinamide (thio) ligand, investigating its reactivity through coordination to the redox reversible [Fe(III/II)(CN)(5)(H(2)O)](2-/3-) metal center. The reaction of the Fe(III) complex with thionicotinamide leads to the ligand conversion to the 3-cyanopyridine species coordinated to a Fe(II) metal center. The rate constant, k(et)=10 s(-1), was determined for this intra-molecular ET reaction. A kinetic study for the cross-reaction of thionicotinamide and [Fe(CN)(6)](3-) was also carried out. The oxidation of thionicotinamide by [Fe(CN)(6)](3-) leads to formation of mainly 3-cyanopyridine and [Fe(CN)(6)](4-) with a k(et)=(5.38+/-0.03) M(-1)s(-1) at 25 degrees C, pH 12.0. The rate of this reaction is strongly dependent on pH due to an acid-base equilibrium related to the deprotonation of the R-SH functional group of the imidothiol form of thionicotinamide. The kinetic results reinforced the assignment of an intra-molecular mechanism for the ET reaction of [Fe(III)(CN)(5)(H(2)O)](2-) and the thioamide ligand. These results can be valuable for the design of new thiocarbonyl-containing drugs against resistant strains of Mycobacterium tuberculosis by a self-activating mechanism.
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Affiliation(s)
- Eduardo H S Sousa
- Departamento de Química Orgânica e Inorgânica, Universidade Federal de Ceará, Cx. Postal 12200, Campus do Pici s/n, Fortaleza CE 60455-760, Brazil
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Shin RYC, Ng SY, Tan GK, Koh LL, Khoo SB, Goh LY, Webster RD. Syntheses and X-ray Crystal Structures of Di- and Trinuclear Trithiolate−Thioether-Bridged Complexes of Ruthenium. Electrochemistry of Mixed-Valence Triruthenium Complexes. Organometallics 2004. [DOI: 10.1021/om034189+] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Baranwal BP, Gupta T. Synthesis and spectral characterization of some oxo-centered, trinuclear mixed-valence iron thiocarboxylates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2003; 59:859-865. [PMID: 12609636 DOI: 10.1016/s1386-1425(02)00232-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Some mixed-valence Fe(II) Fe(III) complexes of thiocarboxylic acids and straight chain fatty acids with general formula [Fe(II)Fe(III)(2)O(SOCR)(6)(H(2)O)(3)] and [Fe(II)Fe(III)(2)O(SOCR)(3)(OOCR')(3)(CH(3)OH)(3)] (where, R=CH(3) or C(6)H(5) and R'=C(13)H(27), C(15)H(31) or C(17)H(35)) were synthesized and characterized by elemental analyses, spectral (infrared, electronic and Mössbauer) studies, molar conductance and magnetic susceptibility measurements. The infrared spectra suggested bridging nature of carboxylate and thiocarboxylate anions along with upsilon(asym)(Fe(3)O) vibrations in the complexes. Mössbauer studies revealed two resolved quadrupole doublets at 120-315 K confirming the presence of Fe(II) and Fe(III) moieties in the complexes. This was supported by the observed electronic spectral bands in the complexes at room temperature. The spectrum showed a band at around 13,800 cm(-1) which indicated an intervalence-transfer. Magnetic susceptibility measurements showed weak antiferromagnetic coupling related to mixed-valence pairs with S(2)=2, em leader S(1)=S(3)=5/2 spin exchange model. Conductance data indicated, the complexes were non-electrolytes in nitrobenzene. A structure has been established on the basis of these studies.
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Affiliation(s)
- B P Baranwal
- Coordination Chemistry Laboratory, Department of Chemistry, D.D.U. Gorakhpur University, Gorakhpur 273 009, India.
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Tabellion FM, Seidel SR, Arif AM, Stang PJ. Discrete supramolecular architecture vs crystal engineering: the rational design of a platinum-based bimetallic assembly with a chairlike structure and its infinite, copper analogue. J Am Chem Soc 2001; 123:7740-1. [PMID: 11481013 DOI: 10.1021/ja015784a] [Citation(s) in RCA: 180] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- F M Tabellion
- University of Utah, Department of Chemistry, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, USA
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