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Argibay-Otero S, Carballo R, Vázquez-López EM. Coordination Chemistry of Potentially S,N,N py-Tridentate Thiosemicarbazones with the {Re(CO) 3} + Fragment and Formation of Hemiaminal Derivatives. Inorg Chem 2023; 62:224-237. [PMID: 36546528 PMCID: PMC9832478 DOI: 10.1021/acs.inorgchem.2c03259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nine potentially S,N,Npy-tridentate thiosemicarbazones (HL) derived from pyridine-2-carbaldehyde or 1-(2-pyridyl)ethanone have been prepared and fully characterized. The X-ray crystal structures of six of them and two hydrochlorides were determined and analyzed. The reaction of the [ReX(CH3CN)2(CO)3]/[ReX(CO)5] (X = Cl and Br) precursors with these ligands yielded different kinds of compounds: the adducts [ReX(HL)(CO)3], in which the ligands were S,N-bidentate; the trinuclear species [Re3Cl2(L23)(HL23)(CO)9]; and the thiosemicarbazonate compounds [Re(L)(CO)3], where the ligand is S,N,Npy-tridentate. Besides, the reaction in methanol or ethanol of the thiosemicarbazones derived from aldehydes yielded S,N,Npy-tridentate hemiaminal cationic [Re(HLOR)(CO)3]X and neutral [Re(LOMe)(CO)3] complexes after the coordinated ligand underwent addition of the alcohol group to the imine bond. The reactivity of the complex [ReX(HL)(CO)3] in MeOH and NEt3 led to the formation of dinuclear [Re2(L)2(CO)6], where the thiosemicarbazonate is again S,N-bidentate. The influence that the substituents on the thiosemicarbazone ligands have on the stability of the complexes and the effect of the reaction medium on the resulting compounds have been analyzed.
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Affiliation(s)
- Saray Argibay-Otero
- Departamento
de Química Inorgánica, Facultade de Química,
Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain,Metallosupramolecular
Chemistry Group, Galicia South Health Research
Institute (IIS Galicia Sur), SERGAS-UVIGO, E-36213 Vigo, Galicia, Spain
| | - Rosa Carballo
- Departamento
de Química Inorgánica, Facultade de Química,
Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain,Metallosupramolecular
Chemistry Group, Galicia South Health Research
Institute (IIS Galicia Sur), SERGAS-UVIGO, E-36213 Vigo, Galicia, Spain
| | - Ezequiel M. Vázquez-López
- Departamento
de Química Inorgánica, Facultade de Química,
Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain,Metallosupramolecular
Chemistry Group, Galicia South Health Research
Institute (IIS Galicia Sur), SERGAS-UVIGO, E-36213 Vigo, Galicia, Spain,
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Argibay-Otero S, Graña AM, Carballo R, Vázquez-López EM. Synthesis of Novel Dinuclear N-Substituted 4-(Dimethylamino)benzaldehyde Thiosemicarbazonates of Rhenium(I): Formation of Four- and/or Five-Membered Chelate Rings, Conformational Analysis, and Reactivity. Inorg Chem 2020; 59:14101-14117. [PMID: 32965111 DOI: 10.1021/acs.inorgchem.0c01887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of fac-[ReX(CH3CN)2(CO)3] (X = Cl, Br) with N-phenyl-[4-(dimethylamino)benzaldehyde] thiosemicarbazone (HLA) or N-4-methoxybenzyl-[4-(dimethylamino)benzaldehyde] thiosemicarbazone (HLB) under controlled synthetic conditions gave 4 mononuclear [ReX(HL)(CO)3] (X = Cl, Br) and 16 dinuclear [Re2L2(CO)6] compounds. These complexes were obtained as single crystals, and their structures were established by X-ray diffraction. The structural study of these dimers showed the formation of several solvates, the presence of linkage isomerism, and the stabilization of four- and/or five-membered chelate rings. The different ligand coordination modes (a new μ-κ2-S,N2:κ-N3 coordination mode for a thiosemicarbazone ligand was observed), the conformation of the thiosemicarbazone chain in each case, the formal symmetry of the dimers, and the role of the synthetic procedure in the stability of the different chelate rings were analyzed and are discussed. Theoretical calculations in the gas phase were performed for the dimers with the HLA ligand in order to identify the thermodynamically most stable species. The behavior and structural stability of dimers in dimethyl sulfoxide and acetone solutions was investigated by 1H NMR spectroscopy. The strength of the ReI-L bond in solution was evidenced by the formation of [Re2(LNO2)2(CO)6] and [Re(LA)(py)(CO)3] upon reaction of the corresponding dimer with concentrated nitric acid and pyridine, respectively.
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Affiliation(s)
- Saray Argibay-Otero
- Departamento de Quı́mica Inorgánica, Facultade de Quı́mica, Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain.,Metallosupramolecular Chemistry Group, Galicia South Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, E-36213 Vigo, Galicia, Spain
| | - Ana M Graña
- Departamento de Química Física, Facultade de Química, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain
| | - Rosa Carballo
- Departamento de Quı́mica Inorgánica, Facultade de Quı́mica, Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain.,Metallosupramolecular Chemistry Group, Galicia South Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, E-36213 Vigo, Galicia, Spain
| | - Ezequiel M Vázquez-López
- Departamento de Quı́mica Inorgánica, Facultade de Quı́mica, Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo, Campus Universitario, E-36310 Vigo, Galicia, Spain.,Metallosupramolecular Chemistry Group, Galicia South Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, E-36213 Vigo, Galicia, Spain
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Thiosemicarbazonate complexes with affinity for amyloid-β fibers: synthesis, characterization and biological studies. Future Med Chem 2019; 11:2527-2546. [DOI: 10.4155/fmc-2019-0013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: Obtain radioimages of amyloid-β fibers using 99mTc-complexes. Methodology: Tridentate thiosemicarbazone and thiocarbonohydrazone ligands containing fragments (stilbene, azobenzene, benzothiazole or benzoxazole) with affinity for amyloid-ß fibers and its Re(I) complexes have been prepared. The molecular structures of several ligands and complexes were determined by x-ray diffraction. Binding affinity studies toward Aß1-42 fibers were performed for the ligands and Re(I) complexes. The ability of formation of some 99mTc(I) complexes, their biodistribution and in vivo stability have been established. Results & conclusion: Complexes of stilbene and benzothiazole thiosemicarbazonates show similar affinity for amyloid-β fibers to the free ligand. These 99mTc complexes present a reasonable in vivo stability and a low capability to cross the blood–brain barrier although not sufficient to brain amyloid imaging.
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Zhang X, Huang J, Zhang Y, Qi F, Wang S, Song J. Synthesis, Crystal Structure and Non-covalent Interactions Analysis of Novel N-substituted Thiosemicarbazone. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-8354-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tricarbonylrhenium(I) complexes with the N-methylpyridine-2-carbothioamide ligand – Synthesis, characterization and cytotoxicity studies. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Pino-Cuevas A, Graña A, Abram U, Carballo R, Vázquez-López EM. Structural study of mono-, di- and tetranuclear complexes of the {Re(CO)3}+ fragment with thiosemicarbazone/thiosemicarbazonate ligands containing benzothiazole or benzoxazole groups. CrystEngComm 2018. [DOI: 10.1039/c8ce00874d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thiosemicarbazone form mononuclear and dinuclear complexes as bidentate ligands with {Re(CO)3}+ and a tetranuclear complex with unusual bideprotonated thiosemicarbazonate.
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Affiliation(s)
- Arantxa Pino-Cuevas
- Departamento de Química Inorgánica
- Facultade de Química
- Instituto de Investigación Sanitaria Galicia Sur
- E-36310 Vigo
- Spain
| | - Ana Graña
- Departamento de Química Física
- Facultade de Química
- Universidade de Vigo
- E-36310 Vigo
- Spain
| | - Ulrich Abram
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195-Berlin
- Germany
| | - Rosa Carballo
- Departamento de Química Inorgánica
- Facultade de Química
- Instituto de Investigación Sanitaria Galicia Sur
- E-36310 Vigo
- Spain
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Ibrahim AA, Khaledi H, Hassandarvish P, Mohd Ali H, Karimian H. Indole-7-carbaldehyde thiosemicarbazone as a flexidentate ligand toward ZnII, CdII, PdII and PtII ions: cytotoxic and apoptosis-inducing properties of the PtII complex. Dalton Trans 2014; 43:3850-60. [PMID: 24442181 DOI: 10.1039/c3dt53032a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new thiosemicarbazone (LH2) derived from indole-7-carbaldehyde was synthesized and reacted with Zn(II), Cd(II), Pd(II) and Pt(II) salts. The reactions with zinc and cadmium salts in 2 : 1 (ligand-metal) molar ratio afforded complexes of the type MX2(LH2)2, (X = Cl, Br or OAc), in which the thiosemicarbazone acts as a neutral S-monodentate ligand. In the presence of potassium hydroxide, the reaction of LH2 with ZnBr2 resulted in deprotonation of the thiosemicarbazone at the hydrazine and indole nitrogens to form Zn(L)(CH3OH). The reaction of LH2 with K2PdCl4 in the presence of triethylamine, afforded Pd(L)(LH2) which contains two thiosemicarbazone ligands: one being dianionic N,N,S-tridentate while the other one is neutral S-monodentate. When PdCl2(PPh3)2 was used as the Pd(II) ion source, Pd(L)(PPh3) was obtained. In a similar manner, the analogous platinum complex, Pt(L)(PPh3), was synthesized. The thiosemicarbazone in the latter two complexes behaves in a dianionic N,N,S-tridentate fashion. The platinum complex was found to have significant cytotoxicity toward four cancer cells lines, namely MDA-MB-231, MCF-7, HT-29, and HCT-116 but not toward the normal liver WRL-68 cell line. The apoptosis-inducing properties of the Pt complex was explored through fluorescence microscopy visualization, DNA fragmentation analysis and propidium iodide flow cytometry.
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Affiliation(s)
- Abeer A Ibrahim
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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Núñez-Montenegro A, Carballo R, Vázquez-López EM. Synthesis, characterization and binding affinities of rhenium(I) thiosemicarbazone complexes for the estrogen receptor (α/β). J Inorg Biochem 2014; 140:53-63. [PMID: 25061691 DOI: 10.1016/j.jinorgbio.2014.06.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 06/17/2014] [Accepted: 06/17/2014] [Indexed: 12/13/2022]
Abstract
The binding affinities towards estrogen receptors (ERs) α and β of a set of thiosemicarbazone ligands (HL(n)) and their rhenium(I) carbonyl complexes [ReX(HL(n))(CO)3] (X=Cl, Br) were determined by a competitive standard radiometric assay with [(3)H]-estradiol. The ability of the coordinated thiosemicarbazone ligands to undergo deprotonation and the lability of the ReX bond were used as a synthetic strategy to obtain [Re(hpy)(L(n))(CO)3] (hpy=3- or 4-hydroxypyridine). The inclusion of the additional hpy ligand endows the new thiosemicarbazonate complexes with an improved affinity towards the estrogen receptors and, consequently, the values of the inhibition constant (Ki) could be determined for some of them. In general, the values of Ki for both ER subtypes suggest an appreciable selectivity towards ERα.
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Affiliation(s)
- Ara Núñez-Montenegro
- Departamento de Química Inorgánica, Universidade de Vigo, E-36310 Vigo, Galicia, Spain
| | - Rosa Carballo
- Departamento de Química Inorgánica, Universidade de Vigo, E-36310 Vigo, Galicia, Spain
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Machado I, Fernández S, Becco L, Garat B, Gancheff JS, Rey A, Gambino D. New fac-tricarbonyl rhenium(I) semicarbazone complexes: synthesis, characterization, and biological evaluation. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.926008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ignacio Machado
- Facultad de Química, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
| | - Soledad Fernández
- Facultad de Química, Cátedra de Radioquímica, Universidad de la República, Montevideo, Uruguay
| | - Lorena Becco
- Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Beatriz Garat
- Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Jorge S. Gancheff
- Facultad de Química, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
| | - Ana Rey
- Facultad de Química, Cátedra de Radioquímica, Universidad de la República, Montevideo, Uruguay
| | - Dinorah Gambino
- Facultad de Química, Cátedra de Química Inorgánica, Universidad de la República, Montevideo, Uruguay
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Núñez-Montenegro A, Carballo R, Abram U, Vázquez-López EM. Preparation and characterization of rhenium(I) complexes with thiosemicarbazone ligands derived from resorcinol. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.08.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nickel complexes of some thiosemicarbazones: Synthesis, structure, catalytic properties and cytotoxicity studies. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.05.034] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Datta S, Seth DK, Butcher RJ, Bhattacharya S. Mixed-ligand thiosemicarbazone complexes of nickel: Synthesis, structure and catalytic activity. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.08.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Núñez-Montenegro A, Carballo R, Hermida-Ramón JM, Vázquez-López EM. Synthesis, characterization, reactivity and computational studies of new rhenium(I) complexes with thiosemicarbazone ligands derived from 4-(methylthio)benzaldehyde. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.05.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gerber T, Betz R, Booysen I, Potgieter K, Mayer P. Coordination of bidentate aniline derivatives to the fac-[Re(CO)3]+ core. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.04.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hua G, Fuller AL, Bühl M, Slawin AMZ, Woollins JD. Selenation/Thionation of α-Amino Acids: Formation and X-ray Structures of Diselenopiperazine and Dithiopiperazine and Related Compounds. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100226] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Synthesis, spectral studies, crystal structures and TDDFT studies of the rhenium(I) complexes of 2,4-dihydroxy-N′-(4-hydroxybenzilidene) benzohydrazide. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.12.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Barbazán P, Hagenbach A, Oehlke E, Abram U, Carballo R, Rodríguez-Hermida S, Vázquez-López EM. Tricarbonyl Rhenium(I) and Technetium(I) Complexes with Hydrazones Derived from 4,5-Diazafluoren-9-one and 1,10-Phenanthroline-5,6-dione. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000522] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Synthesis, spectroscopic characterization, crystal structures, and theoretical studies of (E)-2-(2,4-dimethoxybenzylidene)thiosemicarbazone and (E)-2-(2,5-dimethoxybenzylidene)thiosemicarbazone. Struct Chem 2010. [DOI: 10.1007/s11224-010-9637-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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