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Synthesis, structural and spectroscopic properties of [N’-[(2,4-dihydroxyphenyl) methylidene]-4-(4-fluorophenyl) piperazine-1-carbothiohydrazide] thiosemicarbazone and its terbium complex. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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Li S, Khan MH, Wang X, Cai M, Zhang J, Jiang M, Zhang Z, Wen XA, Liang H, Yang F. Synthesis of a series of novel In(III) 2,6-diacetylpyridine bis(thiosemicarbazide) complexes: structure, anticancer function and mechanism. Dalton Trans 2020; 49:17207-17220. [PMID: 33201167 DOI: 10.1039/d0dt02266g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The anticancer function and anticancer mechanism of indium (In) complexes still remain mysterious to date. Furthermore, it is greatly challenging to design a multi-functional metal agent that not only kills cancer cells but also inhibits their invasion and metastasis. Thus, to develop novel next-generation anticancer metal agents, we designed and synthesized a series of novel In(iii) 2,6-diacetylpyridine bis(thiosemicarbazide) complexes (C1-C4) for the first time and then investigated their structure-activity relationships with human urinary bladder cancer (T-24) cells. In particular, C4 not only showed higher cytotoxicity to cancer cells and less toxicity toward normal cells relative to cisplatin but also inhibited cell invasion and metastasis of T-24 cells. Interestingly, C4 acted against T-24 cells exhibiting multiple mechanisms: (1) arresting the S-phase of cell cycle via regulation of cytokine kinases, (2) activating the mitochondrial-mediated apoptosis, endoplasmic reticulum-stress-mediated cell death, PERK and c-Jun N-terminal kinase 1 (JNK) cell signaling pathways, and (3) inhibiting the expression of telomerase via the regulation of c-myc and h-TERT proteins. Our results suggested that C4 may be developed as a potential multi-functional and multi-targeting anticancer candidate.
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Affiliation(s)
- Shanhe Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, Guangxi Normal University, Guilin, Guangxi, China.
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Salsi F, Roca Jungfer M, Hagenbach A, Abram U. Trigonal‐Bipyramidal vs. Octahedral Coordination in Indium(III) Complexes with Potentially
S,N,S
‐Tridentate Thiosemicarbazones. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Federico Salsi
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
| | - Maximilian Roca Jungfer
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
| | - Adelheid Hagenbach
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
| | - Ulrich Abram
- Institute of Chemistry and Biochemistry Freie Universität Berlin Fabeckstr. 34‐36 14195 Berlin Germany
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4
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Aguirre AR, Parrilha GL, Diniz R, Ribeiro BC, Santos RGD, Beraldo H. Cytotoxic effects of indium(III) complexes with 2-acetylpyridine-N(4)-ortho-fluorophenylthiosemicarbazone and their radioactive 114mIn analogues against human glioma cells. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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5
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Venkatachalam TK, Bernhardt PV, Pierens GK, Stimson DHR, Bhalla R, Reutens DC. Synthesis and Characterisation of Indium(III) Bis-Thiosemicarbazone Complexes: 18F Incorporation for PET Imaging. Aust J Chem 2019. [DOI: 10.1071/ch18559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Several structurally related indium chlorido complexes of bis-thiosemicarbazones were prepared, starting from the appropriately substituted bis-thiosemicarbazones, using sodium methoxide in methanol. Detailed NMR studies were conducted to assign the structure including COSY, HSQC, and HMBC techniques. The structures of all indium complexes were solved using single crystal X-ray diffraction. The chlorido ligand was present at the apex of the square pyramidal coordination sphere in all indium complexes. In some complexes, an intermolecular hydrogen bond was present between the chlorine atom and an NH group. Three different indium chlorido complexes were converted into the corresponding fluorido-derivative by a simple halide exchange method using K18F. These novel complexes, containing the positron emitting isotope 18F, may have potential applications in positron emission tomography (PET).
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Oliveira AA, Perdigão GMC, Rodrigues LE, da Silva JG, Souza-Fagundes EM, Takahashi JA, Rocha WR, Beraldo H. Cytotoxic and antimicrobial effects of indium(iii) complexes with 2-acetylpyridine-derived thiosemicarbazones. Dalton Trans 2018; 46:918-932. [PMID: 28009892 DOI: 10.1039/c6dt03657k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Complexes [In(2Ac4oClPh)Cl2(MeOH)] (1), [In(2Ac4pFPh)Cl2(MeOH)] (2), [In(2Ac4pClPh)Cl2(MeOH)] (3) and [In(2Ac4pIPh)Cl2(MeOH)] (4) were obtained with N(4)-ortho-chlorophenyl-2-acetylpyridine thiosemicarbazone (H2Ac4oClPh), N(4)-para-fluorophenyl-2-acetylpyridine thiosemicarbazone (H2Ac4pFPh), N(4)-para-chlorophenyl-2-acetylpyridine thiosemicarbazone (H2Ac4pClPh) and N(4)-para-iodophenyl-2-acetylpyridine thiosemicarbazone (H2Ac4pIPh). Theoretical studies suggested that the coordinated methanol molecule can be easily replaced by DMSO used in the preparation of stock solutions, with the formation of [In(L)Cl2(DMSO)] (HL = thiosemicarbazonate ligand), and that the replacement of DMSO by water is unfavorable. However, for all complexes the displacement of one or two chloride ligands by water in aqueous solution is extremely favorable. The cytotoxic activity of the compounds was evaluated against HL-60, Jurkat and THP-1 leukemia and against MDA-MB-231 and HCT-116 solid tumor cell lines, as well as against Vero non-malignant cells. The cytotoxicity and selectivity indexes (SI) increased in several cases for the indium(iii) complexes in comparison with the free thiosemicarbazones. The antimicrobial activity of the compounds was investigated against Candida albicans, Candida dubliniensis, Candida lusitaniae and Candida parapsilosis. In many cases complexation resulted in a substantial increase of the antifungal activity. Complexes (1-4) were revealed to be very active against C. lusitaniae and C. dubliniensis. Structure-activity relationship (SAR) studies were carried out to identify the physico-chemical properties that might be involved in the antifungal action, as well as in the cytotoxic effect of the compounds against HL-60 cells. In both cases, correlations between the bioactivity and physico-chemical properties did not appreciably change when the chloride ligands in [In(L)Cl2(DMSO)] were replaced by water molecules, suggesting [In(L)Cl(H2O)(DMSO)]+ or [In(L)(H2O)2(DMSO)]2+ to be the species that interact with the biological media.
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Affiliation(s)
- Alexandre A Oliveira
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
| | - Gabriele M C Perdigão
- Departamento de Fisiologia e Biofísica, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Luana E Rodrigues
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
| | - Jeferson G da Silva
- Departamento de Farmácia, Universidade Federal de Juiz de Fora, Campus Governador Valadares, 35010-177 Governador Valadares, MG, Brazil
| | - Elaine M Souza-Fagundes
- Departamento de Fisiologia e Biofísica, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Jacqueline A Takahashi
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
| | - Willian R Rocha
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
| | - Heloisa Beraldo
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
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Wang YT, Fang Y, Zhao M, Li MX, Ji YM, Han QX. Cu(ii), Ga(iii) and In(iii) complexes of 2-acetylpyridine N(4)-phenylthiosemicarbazone: synthesis, spectral characterization and biological activities. MEDCHEMCOMM 2017; 8:2125-2132. [PMID: 30108730 PMCID: PMC6084159 DOI: 10.1039/c7md00415j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 10/07/2017] [Indexed: 11/21/2022]
Abstract
In this paper, synthesis and characterization of metal complexes [Cu2(L)3]ClO4 (1), [Ga(L)2]NO3·2H2O (2) and [In(L)2]NO3·H2O (3) (HL = 2-acetylpyridine N(4)-phenylthiosemicarbazone) was carried out, including elemental analysis, spectral analysis (IR, UV-vis, NMR), and X-ray crystallography. Complex 1 contains one S-bridged binuclear [Cu2(L)3]+ unit, where two Cu atoms display diverse coordination geometries: one being square planar geometry and the other octahedral geometry. Both 2 and 3 are mononuclear complexes, and the metal centers in 2 and 3 are chelated by two NNS tridentate ligands possessing a distorted octahedral geometry. Biological studies show that all the complexes possess a wide spectrum of modest to effective antibacterial activities and remarkable cytotoxicities against HepG2 cells, and 1, in particular, with an IC50 value of 0.19 ± 0.06 μM, is 113-fold and 28-fold more cytotoxic than HL and the antitumor drug mitoxantrone, respectively. In addition, 3 exhibits excellent photoluminescence properties. Upon the addition of 1 equiv of In3+ ions, a remarkable fluorescence intensity of HL and fluorescent color change (from transparent to light-green) could be observed with 365 nm light, indicating that this ligand may be used as a promising colorimetric and fluorescent probe for In3+ detection.
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Affiliation(s)
- Yu-Ting Wang
- Henan Key Laboratory of Polyoxometalates , Institute of Molecular and Crystal Engineering , College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China . ; ; ; Tel: +86 371 23881589
- College of Chemistry and Environment , Henan Institute of Finance and Banking , Zhengzhou 450046 , PR China
| | - Yan Fang
- Henan Key Laboratory of Polyoxometalates , Institute of Molecular and Crystal Engineering , College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China . ; ; ; Tel: +86 371 23881589
| | - Meng Zhao
- Henan Key Laboratory of Polyoxometalates , Institute of Molecular and Crystal Engineering , College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China . ; ; ; Tel: +86 371 23881589
| | - Ming-Xue Li
- Henan Key Laboratory of Polyoxometalates , Institute of Molecular and Crystal Engineering , College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China . ; ; ; Tel: +86 371 23881589
| | - Yu-Mei Ji
- Henan Key Laboratory of Polyoxometalates , Institute of Molecular and Crystal Engineering , College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China . ; ; ; Tel: +86 371 23881589
| | - Qiu-Xia Han
- Henan Key Laboratory of Polyoxometalates , Institute of Molecular and Crystal Engineering , College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , PR China . ; ; ; Tel: +86 371 23881589
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8
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Indium(III) complexes with 2-acetylpyridine-derived thiosemicarbazones exhibit cytotoxic activity against human leukemia and solid tumor cell lines. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Oliveira AA, Franco LL, dos Santos RG, Perdigão GMC, da Silva JG, Souza-Fagundes EM, Beraldo H. Neutron activation of In(iii) complexes with thiosemicarbazones leads to the production of potential radiopharmaceuticals for the treatment of breast cancer. NEW J CHEM 2017. [DOI: 10.1039/c7nj01547j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
114mIn(iii) complexes with 2-acetylpyridine-derived thiosemicarbazones show potent cytotoxic activity.
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Affiliation(s)
- Alexandre A. Oliveira
- Departamento de Química
- Universidade Federal de Minas Gerais
- 31270-901 Belo Horizonte
- Brazil
| | - Lucas L. Franco
- Departamento de Química
- Universidade Federal de Minas Gerais
- 31270-901 Belo Horizonte
- Brazil
| | - Raquel G. dos Santos
- Centro de Desenvolvimento da Tecnologia Nuclear
- CDTN
- 31270-901 Belo Horizonte
- Brazil
| | - Gabriele M. C. Perdigão
- Departamento de Fisiologia e Biofísica
- Universidade Federal de Minas Gerais
- 31270-901 Belo Horizonte
- Brazil
| | - Jeferson G. da Silva
- Departamento de Farmácia
- Universidade Federal de Juiz de Fora
- Campus Governador Valadares
- 35010-177 Governador Valadares
- Brazil
| | - Elaine M. Souza-Fagundes
- Departamento de Fisiologia e Biofísica
- Universidade Federal de Minas Gerais
- 31270-901 Belo Horizonte
- Brazil
| | - Heloisa Beraldo
- Departamento de Química
- Universidade Federal de Minas Gerais
- 31270-901 Belo Horizonte
- Brazil
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10
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Nehar O, Louhibi S, Boukli-Hacene L, Roisnel T. Synthesis and crystal structure of (( E)-{2-[( E)-(4-hy-droxynaphthalen-1-yl)methyl-idene]hydrazin-1-yl}(methyl-sulfan-yl)methyl-idene)azanium hydrogen sulfate monohydrate. Acta Crystallogr E Crystallogr Commun 2016; 72:1326-1329. [PMID: 27920927 PMCID: PMC5120717 DOI: 10.1107/s2056989016013232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 08/17/2016] [Indexed: 11/12/2023]
Abstract
In the title hydrated mol-ecular salt, C13H14N3S+·HSO4-·H2O, the protonation of the azomethine N atom in sulfuric acid medium involves the formation of the bis-ulfate anion. The mol-ecular structure of the cation is obtained from the thiol tautomer of thio-semicarbazone wherein the naphthalene moiety and the conjugation of the bonds contribute to the planarity of the mol-ecular skeleton. In the crystal, the cation, anion and water mol-ecule of crystallization are linked by a series of O-H⋯O and N-H⋯O hydrogen bonds, forming a three-dimensional network. Within this network, there are also C-H⋯π inter-actions present involving symmetry-related naphthalene rings.
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Affiliation(s)
- Oussama Nehar
- Laboratoire de Chimie Inorganique et Environnement, Université de Tlemcen, BP 119, 13000 Tlemcen, Algeria
| | - Samira Louhibi
- Laboratoire de Chimie Inorganique et Environnement, Université de Tlemcen, BP 119, 13000 Tlemcen, Algeria
| | - Leila Boukli-Hacene
- Laboratoire de Chimie Inorganique et Environnement, Universite de Tlemcen, BP 119, 13000 Tlemcen, Algeria
| | - Thierry Roisnel
- Centre de Diffractometrie X, UMR 6226 CNRS, Unité Sciences Chimiques de Rennes, Université de Rennes I, 263 Avenue du General Leclerc, 35042 Rennes, France
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11
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Inamdar PR, Chauhan R, Abraham J, Sheela A. DNA interaction and cytotoxic activity of copper complex based on tridentate hydrazone derived ligand and nitrogen donor heterocycle. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Kanchanadevi A, Ramesh R, Bhuvanesh N. Synthesis and molecular structure of ruthenium(III) benzoylhydrazone complexes: Substituents effect on transfer hydrogenation of ketones. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.04.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Prakash G, Manikandan R, Viswanathamurthi P, Velmurugan K, Nandhakumar R. Ruthenium(III) S-methylisothiosemicarbazone Schiff base complexes bearing PPh3/AsPh3 coligand: Synthesis, structure and biological investigations, including antioxidant, DNA and protein interaction, and in vitro anticancer activities. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 138:63-74. [DOI: 10.1016/j.jphotobiol.2014.04.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 04/16/2014] [Accepted: 04/21/2014] [Indexed: 10/25/2022]
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Sickerman NS, Henry RM, Ziller JW, Borovik AS. Preparation and Structural Properties of In III-H Complexes. Polyhedron 2013; 58:65-70. [PMID: 25309019 PMCID: PMC4190917 DOI: 10.1016/j.poly.2012.07.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The use of the tripodal ligands tris[(N'-tert-butylureaylato)-N-ethyl]aminato ([H3buea]3-) and the sulfonamide-based N,N',N"-[2,2',2"-nitrilotris(ethane-2,1-diyl)]tris(2,4,6-trimethylbenzene-sulfonamidato) ([MST]3-) has led to the synthesis of two structurally distinct In(III)-OH complexes. The first example of a five-coordinate indium(III) complex with a terminal hydroxide ligand, K[InIIIH3buea(OH)], was prepared by addition of In(OAc)3 and water to a deprotonated solution of H6buea. X-ray diffraction analysis, as well as FTIR and 1H NMR spectroscopic methods, provided evidence for the formation of a monomeric In(III)-OH complex. The complex contains an intramolecular hydrogen bonding (H-bonding) network involving the In(III)-OH unit and [H3buea]3- ligand, which aided in isolation of the complex. Isotope labeling studies verified the source of the hydroxo ligand as water. Treatment of the [InIIIMST] complex with a mixture of 15-crown-5 ether and NaOH led to isolation of the complex [15-crown-5⊃NaI-(μ-OH)-InIIIMST], whose solid-state structure was confirmed using X-ray diffraction methods. Nuclear magnetic resonance studies on this complex suggest it retains its heterobimetallic structure in solution.
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Affiliation(s)
- Nathaniel S Sickerman
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, CA 92697
| | - Renée M Henry
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, CA 92697
| | - Joseph W Ziller
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, CA 92697
| | - A S Borovik
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, CA 92697
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Dilek N, Güneş B, Büyükgüngör O, Güp R. Crystal structure of bis(isothiocyanato)[2,6-diacetylpyridine bis(4-hydroxybenzoylhydrazone)]Fe(III) Chloride bis(dimethylformamide) solvate. CRYSTALLOGR REP+ 2013. [DOI: 10.1134/s1063774513010173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Dilworth JR, Hueting R. Metal complexes of thiosemicarbazones for imaging and therapy. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.02.019] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Das K, Datta A, Sinha C, Huang JH, Garribba E, Hsiao CS, Hsu CL. End-to-End Thiocyanato-Bridged Helical Chain Polymer and Dichlorido-Bridged Copper(II) Complexes with a Hydrazone Ligand: Synthesis, Characterisation by Electron Paramagnetic Resonance and Variable-Temperature Magnetic Studies, and Inhibitory Effects on Human Colorectal Carcinoma Cells. ChemistryOpen 2012; 1:80-9. [PMID: 24551495 PMCID: PMC3922458 DOI: 10.1002/open.201100011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 02/13/2012] [Indexed: 12/02/2022] Open
Abstract
The reactions of the tridentate hydrazone ligand, N'-[1-(pyridin-2-yl)ethylidene]acetohydrazide (HL), obtained by condensation of 2-acetylpyridine with acetic hyadrazide, with copper nitrate trihydrate in the presence of thiocyanate, or with CuCl2 produce two distinct coordination compounds, namely a one-dimensional helical coordination chain of [CuL(NCS)] n (1) units, and a doubly chlorido-bridged dinuclear complex [Cu2L2Cl2] (2) (where L=CH3C(O)=N-N=CCH3C5H4N). Single-crystal X-ray structural determination studies reveal that in complex 1, a deprotonated hydrazone ligand L(-) coordinates a copper(II) ion that is bridged to two neighbouring metal centres by SCN(-) anions, generating a one-dimensional helical coordination chain. In complex 2, two symmetry-related, adjacent copper(II) coordination entities are doubly chlorido-bridged, producing a dicopper entity with a Cu⋅⋅⋅Cu distance of 3.402 (1) Å. The two coordination compounds have been fully characterised by elemental analysis, spectroscopic techniques including IR, UV-vis and electron paramagnetic resonance, and variable-temperature magnetic studies. The biological effects of 1 and 2 on the viability of human colorectal carcinoma cells (COLO-205 and HT-29) were evaluated using an MTT assay, and the results indicate that these complexes induce a decrease in cell-population growth of human colorectal carcinoma cells with apoptosis.
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Affiliation(s)
- Kuheli Das
- Department of Chemistry, Jadavpur University 188 Raja S. C. Mallik Road, 700032 Kolkata (India)
| | - Amitabha Datta
- Department of Chemistry, National Changhua University of Education 1 Jin-De Road, 50058 Changhua (Taiwan) E-mail:
| | - Chittaranjan Sinha
- Department of Chemistry, Jadavpur University 188 Raja S. C. Mallik Road, 700032 Kolkata (India)
| | - Jui-Hsien Huang
- Department of Chemistry, National Changhua University of Education 1 Jin-De Road, 50058 Changhua (Taiwan) E-mail:
| | - Eugenio Garribba
- Dipartimento di Chimica and Centro Interdisciplinare per lo Sviluppo della Ricerca Biotecnologica e per lo Studio della Biodiversità della Sardegna, Università degli Studi di Sassari Via Vienna 2, 07100 Sassari (Italy)
| | - Ching-Sheng Hsiao
- Department of Chemistry, National Changhua University of Education 1 Jin-De Road, 50058 Changhua (Taiwan) E-mail:
| | - Chin-Lin Hsu
- School of Nutrition, Chung Shan Medical University No. 110, Sec.1, Cheng-Kuo N. Rd., 40201 Taichung (Taiwan) Department of Nutrition, Chung Shan Medical University Hospital No. 110, Sec.1, Jianguo N. Rd., 40201 Taichung (Taiwan)
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Cao QY, Zhang JF, Ren WX, Choi K, Kim JS. Ferrocene-based novel electrochemical In3+ sensor. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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The key role of hydrogen bonding in the nuclearity of three copper(II) complexes with hydrazone-derived ligands and nitrogen donor heterocycles. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Ali MA, Mirza AH, Chartres JD, Bernhardt PV. Synthesis, characterization and X-ray crystal structures of seven-coordinate pentagonal-bipyramidal zinc(II), cadmium(II) and tin(IV) complexes of a pentadentate N3S2 thiosemicarbazone. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.10.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Quiroga-González E, Kienle L, Näther C, Chakravadhanula V, Lühmann H, Bensch W. Zero- and one-dimensional thioindates synthesized under solvothermal conditions yielding α-In2S3, β-In2S3 or MgIn2S4 as thermal decomposition products. J SOLID STATE CHEM 2010. [DOI: 10.1016/j.jssc.2010.09.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zidan ASA, El-Said AI. STUDIES OF MIXED LIGAND COMPLEXES FROM DIALKYLDITHIOPHOSPHATE AND THIOSEMICARBAZIDE OR THIOSEMICARBAZONES WITH NICKEL(II). PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500490468100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chen DY, Chen CL, Li MX, Niu JY, Zhu XF, Guo HM. Synthesis, crystal structure, and biological activity of a nickel(II) complex of 2-acetylpyridine N(4)-methylthiosemicarbazone. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.484490] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Dan-Yun Chen
- a Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P.R. China
| | - Chun-Ling Chen
- a Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P.R. China
| | - Ming-Xue Li
- a Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P.R. China
| | - Jing-Yang Niu
- a Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P.R. China
| | - Xian-Feng Zhu
- b Bioengineering Institute and College of Life Science, Henan University , Kaifeng 475001, P.R. China
| | - Hong-Mei Guo
- b Bioengineering Institute and College of Life Science, Henan University , Kaifeng 475001, P.R. China
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25
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Chan J, Thompson AL, Jones MW, Peach JM. Synthesis and structural studies of gallium(III) and indium(III) complexes of 2-acetylpyridine thiosemicarbazones. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.10.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Akbar Ali M, Huq Mirza A, Kok Wei L, Bernhardt PV, Atchade O, Song X, Eng G, May L. Synthesis and characterization of pentagonal bipyramidal organotin(IV) complexes of 2,6-diacetylpyridine Schiff bases of S-alkyl- and aryldithiocarbazates. J COORD CHEM 2010. [DOI: 10.1080/00958971003739798] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohammad Akbar Ali
- a Department of Chemistry , Universiti Brunei Darussalam , Jalan Tungku Link, BE 1410, Negara Brunei Darussalam
| | - Aminul Huq Mirza
- a Department of Chemistry , Universiti Brunei Darussalam , Jalan Tungku Link, BE 1410, Negara Brunei Darussalam
| | - Lim Kok Wei
- a Department of Chemistry , Universiti Brunei Darussalam , Jalan Tungku Link, BE 1410, Negara Brunei Darussalam
| | - Paul V. Bernhardt
- b Department of Chemistry , The University of Queensland , QLD 4072, Australia
| | - Olaniran Atchade
- c Department of Chemistry and Physics , University of the District of Columbia , Washington, DC 20008, USA
| | - Xueqing Song
- c Department of Chemistry and Physics , University of the District of Columbia , Washington, DC 20008, USA
| | - George Eng
- c Department of Chemistry and Physics , University of the District of Columbia , Washington, DC 20008, USA
| | - Leopold May
- d Department of Chemistry , The Catholic University of America , Washington, DC 20064, USA
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27
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Krishnan S, Laly K, Prathapachandra Kurup MR. Synthesis and spectral investigations of Mn(II) complexes of pentadentate bis(thiosemicarbazones). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:585-588. [PMID: 20018556 DOI: 10.1016/j.saa.2009.11.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2009] [Revised: 11/10/2009] [Accepted: 11/10/2009] [Indexed: 05/28/2023]
Abstract
Five Mn(II) complexes of bis(thiosemicarbazones) which are represented as [Mn(H(2)Ac4Ph)Cl(2)] (1), [Mn(Ac4Ph)H(2)O] (2), [Mn(H(2)Ac4Cy)Cl(2)].H(2)O (3), [Mn(H(2)Ac4Et)Cl(2)].3H(2)O (4) and [Mn(H(2)Ac4Et)(OAc)(2)].3H(2)O (5) have been synthesized and characterized by elemental analyses, electronic, infrared and EPR spectral techniques. In all the complexes except [Mn(Ac4Ph)H(2)O], the ligands act as pentadentate neutral molecules and coordinate to Mn(II) ion through two thione sulfur atoms, two azomethine nitrogens and the pyridine nitrogen, suggesting a heptacoordination. While in compound [Mn(Ac4Ph)H(2)O], the dianionic ligand is coordinated to the metal suggesting six coordination in this case. Magnetic studies indicate the high spin state of Mn(II). Conductivity measurements reveal their non-electrolyte nature. EPR studies indicate five g values for [Mn(Ac4Ph)H(2)O] showing zero field splitting.
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Affiliation(s)
- Suja Krishnan
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, Kerala, India
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28
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Castiñeiras A, Pedrido R. A thiosemicarbazone ligand functionalized by a phosphine group: Reactivity toward coinage metal ions. Dalton Trans 2010; 39:3572-84. [DOI: 10.1039/b918962a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Chakraborty J, Thakurta S, Pilet G, Luneau D, Mitra S. A novel tetra(μ3-phenoxo) bridged copper(II) Schiff base complex containing a Cu4O4 cubane core: Synthesis, structural aspects and magneto-structural correlations. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.12.018] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Bessy Raj BN, Prathapachandra Kurup MR, Suresh E. Synthesis, spectral characterization and crystal structure of N-2-hydroxy-4-methoxybenzaldehyde-N'-4-nitrobenzoyl hydrazone and its square planar Cu(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 71:1253-1260. [PMID: 18467161 DOI: 10.1016/j.saa.2008.03.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2007] [Accepted: 03/19/2008] [Indexed: 05/26/2023]
Abstract
A new aroyl hydrazone, N-2-hydroxy-4-methoxybenzaldehyde-N'-4-nitrobenzoyl hydrazone (H2L) and its mixed ligand Cu(II) complex [CuLpy] [py, pyridine] have been prepared. The ligand is characterized by elemental analysis, electronic, infrared and NMR spectral studies and the complex by electronic, infrared, EPR spectral studies and the magnetic susceptibility data. The structures of the compounds were determined by single crystal X-ray diffraction studies. Both the ligand and the Cu complex crystallize into a triclinic lattice with a space group of PI. From the crystal studies, it is concluded that the ligand molecule exits in the keto form in the solid state, while at the time of complexation, it tautomerises into the enol form. The complex is formed by the double deprotonation of the ligand molecule--both the phenolic and the enolic protons.
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Affiliation(s)
- B N Bessy Raj
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, Kerala, India
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31
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Castiñeiras A, Pedrido R, Pérez-Alonso G. A Convenient Mode to Stabilize MIMetal Ions by Using Thiosemicarbazones. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800708] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Mahajan K, Swami M, Joshi SC, Singh RV. Microwave-assisted synthesis, characterization, biotoxicity and antispermatogenic activity of some antimony(III) complexes with N∩O and N∩S donor ligands. Appl Organomet Chem 2008. [DOI: 10.1002/aoc.1401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Two Zn(II) and one Mn(II) complexes using two different hydrazone ligands: spectroscopic studies and structural aspects. Struct Chem 2007. [DOI: 10.1007/s11224-007-9274-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Sen S, Shit S, Mitra S, Batten SR. Structural and spectral studies of a new copper(II) complex with a tridentate thiosemicarbazone ligand. Struct Chem 2007. [DOI: 10.1007/s11224-007-9263-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Liu YY, Ma JF, Yang J. Syntheses and structures of Zn(II) and Ni(II) complexes of 4-N-(acetylacetone amine)acetophenone thiosemicarbazone. J COORD CHEM 2007. [DOI: 10.1080/00958970601089218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ying-Ying Liu
- a Department of Chemistry , Northeast Normal University , Changchun 130024, People's Republic of China
| | - Jian-Fang Ma
- a Department of Chemistry , Northeast Normal University , Changchun 130024, People's Republic of China
| | - Jin Yang
- a Department of Chemistry , Northeast Normal University , Changchun 130024, People's Republic of China
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36
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Synthesis, characterisation and crystal structures of a few coordination complexes of nickel(II), cobalt(III) and zinc(II) with N′-[(2-pyridyl)methylene]salicyloylhydrazone Schiff base. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.12.019] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Preparation and characterization of pentagonal-bipyramidal zinc(II) and cadmium(II) complexes of a neutral N3S2 thiosemicarbazone derived from 2N-methylthiosemicarbazide and the X-ray crystal and molecular structures of the free ligand and its cadmium(II) complex, Cd(dap-2NMetsc)(NO3)2. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.06.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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39
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N. Bessy RB, R. Prathapachandra KM, Suresh E. Synthesis, spectroscopic characterization and crystal structure of mixed ligand Ni(II) complex of N-4-diethylaminosalicylidine-N′-4-nitrobenzoyl hydrazone and 4-picoline. Struct Chem 2006. [DOI: 10.1007/s11224-006-9012-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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40
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Shongwe MS, Al-Kharousi HNR, Adams H, Morris MJ, Bill E. Unprecedented [V2O]6+ Core of a Centrosymmetric Thiosemicarbazonato Dimer: Spontaneous Deoxygenation of Oxovanadium(IV). Inorg Chem 2006; 45:1103-7. [PMID: 16441119 DOI: 10.1021/ic0511625] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The complex cation [{V(daptsc)(MeOH)}2(mu-O)]2+ [daptsc(2-) = 2,6-diacetylpyridine bis(thiosemicarbazonate)] is the first crystallographically elucidated dimer to possess a [V2O]6+ core, the [V(IV)-O-V(IV)]6+ structural unit, formed by cleavage of the multiple bond in the oxo-cation VO2+, is linear with the oxo group residing on a crystallographic center of inversion, and the temperature dependence of the magnetic data of the dimer is consistent with weak antiferromagnetic coupling of the d1-d1 centers.
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Affiliation(s)
- Musa S Shongwe
- Department of Chemistry, College of Science, Sultan Qaboos University, P.O. Box 36, Al-Khod 123, Muscat, Sultanate of Oman.
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41
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Pedrido R, Romero MJ, Bermejo MR, González-Noya AM, Maneiro M, Rodríguez MJ, Zaragoza G. Influence of the metal size in the structure of the complexes derived from a pentadentate [N3O2] hydrazone. Dalton Trans 2006:5304-14. [PMID: 17088970 DOI: 10.1039/b610010d] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of the metal size in the nuclearity of the complexes derived from the hydrazone ligand 2,6-bis(1-salicyloylhydrazonoethyl)pyridine [H(4)daps] has been investigated. We have synthesised a series of new complexes [M(H(x)daps)] x yH(2)O, (x = 2,3; y = 0-3) with M = Ag (1), Cd (2), Al (3), Sn (4) and Pb (6), using an electrochemical procedure. The crystal and molecular structures have been determined for the mononuclear complexes [Sn(H(2)daps)(H(2)O)(2)] x 4H(2)O (5) and [Pb(H(2)daps)(CN)][Et(4)N] (7). Complex is the first neutral Sn(II) complex derived from a pentadentate hydrazone Schiff base ligand. Complex shows the lead coordinated to the hydrazone donor set and a cyanide ligand, being the first reported complex with the lead atom coordinated to a monodentate cyanide group. Additionally, we have synthesised the lead complex using chemical conditions, in the presence of sodium cyanide which allowed us to isolate the neutral complex [Pb(H(2)daps)] (8). Evaporation of these mother liquors led the novel compound [Pb(Hdaphs)(CH(3)COO)] (9). Complex 9 shows the initial ligand hydrolysed in one of the imine bonds giving rise to a new tetradentate ligand [H(2)daphs] coordinated to the lead atom and a bidentate acetate group. Moreover, the solution behaviour of the complexes has been investigated by (1)H, (113)Cd, (117)Sn and (207)Pb NMR techniques. In particular multinuclear NMR has provided new useful data to correlate factors such as oxidation state, coordination number and nature of the kernel donor atoms due to the new coordination found in complexes 5 and 7. The comparative study of the structures of the complexes derived from this pentadentate [N(3)O(2)] hydrazone ligand let us to conclude that the metal size is a key factor to control the nuclearity of the complexes derived from the ligand [H(4)daps].
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Affiliation(s)
- Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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42
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Jancik V, Roesky HW. Preparation of Heterobimetallic Oxide-Hydroxide-Hydrogensulfides [LAl(OH)(μ-O)MCp2(SH)] (M=Ti, Zr). Angew Chem Int Ed Engl 2005; 44:6016-8. [PMID: 16106466 DOI: 10.1002/anie.200501509] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vojtech Jancik
- Institut für Anorganische Chemie der Universität, Tammannstrasse 4, 37077 Göttingen, Germany
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43
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Jancik V, Roesky HW. Preparation of Heterobimetallic Oxide-Hydroxide-Hydrogensulfides [LAl(OH)(μ-O)MCp2(SH)] (M=Ti, Zr). Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200501509] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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Synthesis, characterization, crystal structure and electrochemical behavior of a nickel(II) complex of 5,6-dihydro-2H-pyran-3-aldehyde thiosemicarbazone. TRANSIT METAL CHEM 2005. [DOI: 10.1007/s11243-004-1565-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Matesanz AI, Cuadrado I, Pastor C, Souza P. A Novel Sulfur-bridged Dimeric Zinc(II) Complex with 2, 6-Diacetylpyridine Bis(thiosemicarbazone). Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200400428] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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46
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Structural and spectral studies of nickel(II), copper(II) and cadmium(II) complexes of 3-furaldehyde thiosemicarbazone. Polyhedron 2005. [DOI: 10.1016/j.poly.2004.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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47
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Casas JS, Castellano EE, Ellena J, García Tasende MS, Sánchez A, Sordo J, Vidarte MJ. Compositional and structural variety of diphenyllead(IV) complexes obtained by reaction of diphenyllead dichloride with thiosemicarbazones. Inorg Chem 2003; 42:2584-95. [PMID: 12691565 DOI: 10.1021/ic026219r] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reactions of PbPh(2)Cl(2) in methanol with acetophenone, salicylaldehyde, pyridine-2-carbaldehyde, 2-acetylpyridine, and 2-benzoylpyridine thiosemicarbazones (HATSC, HSTSC, HPyTSC, HAcPyTSC, and HBPyTSC, respectively) were explored. Despite the similarities among these ligands, the reactions afforded solids with very diverse compositions and structural characteristics, which were in most cases analyzed by X-ray diffractometry (as was the structure of the free ligand HBPyTSC). In the complexes [PbPh(2)Cl(2)(HATSC)](2), [PbPh(2)Cl(2)(HSTSC)(2)], [(PbPh(2)Cl(HPyTSC)(2))][PbPh(2)Cl(3)(MeOH)](2), and [PbPh(2)Cl(PyTSC)] the metal atoms are surrounded by more or less distorted octahedral coordination polyhedra; if both strong and weak interactions are considered, the lead atom in [PbPh(2)Cl(AcPyTSC)] has coordination number 7 and distorted pentagonal bipyramidal coordination geometry, while [(PbPh(2)(BPyTSC))(2)(PbPh(2)Cl(4))].2MeOH contains two different types of lead atom, one with octahedral and the other with pentagonal bipyramidal coordination. The complexes (H(2)AcPyTSC)[PbPh(2)Cl(3)] and [PbPh(2)Cl(HAcPyTSC)][PbPh(2)Cl(3)], which were also isolated, could not be crystallized. All these complexes are soluble in DMSO, and the compositions of these solutions were investigated using conductivity measurements and (1)H and (207)Pb NMR spectroscopy.
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Affiliation(s)
- José S Casas
- Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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48
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Kuo P, Huang J, Hung C, Lee G, Peng S. Synthesis and Characterization of Five‐Coordinate Gallium and Indium Complexes Stabilized by Tridentate, Substituted Pyrrole Ligands. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200390187] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pei‐Cheng Kuo
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan
| | - Jui‐Hsien Huang
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan
| | - Chen‐Hsiung Hung
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan
| | - Gene‐Hsiang Lee
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 10764, Taiwan
| | - Shie‐Ming Peng
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 10764, Taiwan
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49
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Casas JS, Castellano EE, Ellena J, García-Tasende MS, Sánchez A, Sordo J, Vázquez-López EM, Vidarte MJ. Synthesis, Spectroscopic and Structural Aspects of Mono- and Diorganothallium(III) Complexes of 2, 6-Diacetylpyridine Bis(thiosemicarbazone) (H2DAPTSC) — A New Coordination Mode of the HDAPTSC— Anion. Z Anorg Allg Chem 2003. [DOI: 10.1002/zaac.200390042] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Bermejo MR, Pedrido R, González-Noya AM, Romero MJ, Vázquez M, Sorace L. Conformational rearrangement of 2,6-bis(1-salicyloylhydrazonoethyl)pyridine (H4daps) on complexation. Synthesis and X-ray characterisation of H4daps and its copper helicate complex [Cu(H2daps)(H2O)]2·2CH3CN. NEW J CHEM 2003. [DOI: 10.1039/b305354g] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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