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Baul TSB, Hlychho B, Addepalli MR, Kundu S, de Vos D, Linden A. Synthesis and structures of polynuclear organotin(IV) complexes of polyaromatic ligand and cytotoxic evaluation in tumor cell lines. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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2
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Anasamy T, Chee CF, Wong YF, Heh CH, Kiew LV, Lee HB, Chung LY. Triorganotin complexes in cancer chemotherapy: Mechanistic insights and future perspectives. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Theebaa Anasamy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy University of Malaya Kuala Lumpur Malaysia
| | - Chin Fei Chee
- Nanotechnology and Catalysis Research Centre University of Malaya Kuala Lumpur Malaysia
| | - Yuen Fei Wong
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy University of Malaya Kuala Lumpur Malaysia
| | - Choon Han Heh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy University of Malaya Kuala Lumpur Malaysia
| | - Lik Voon Kiew
- Department of Pharmacology, Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
| | - Hong Boon Lee
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy University of Malaya Kuala Lumpur Malaysia
- School of Biosciences, Faculty of Health and Medical Sciences Taylor's University Subang Jaya Selangor Malaysia
| | - Lip Yong Chung
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy University of Malaya Kuala Lumpur Malaysia
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3
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Selective cytotoxicity of organotin(IV) compounds with 2,3-dihydroxybenzyldithiocarbazate Schiff bases. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04095-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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4
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Paul A, Hazra S, Guedes da Silva MFC, Pombeiro AJL. Biological Evaluation of Azo‐ and Imino‐Based Carboxylate Triphenyltin(IV) Compounds. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Anup Paul
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049‐001 Lisboa Portugal
| | - Susanta Hazra
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049‐001 Lisboa Portugal
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049‐001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049‐001 Lisboa Portugal
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Banti CN, Hadjikakou SK, Sismanoglu T, Hadjiliadis N. Anti-proliferative and antitumor activity of organotin(IV) compounds. An overview of the last decade and future perspectives. J Inorg Biochem 2019; 194:114-152. [PMID: 30851663 DOI: 10.1016/j.jinorgbio.2019.02.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 01/06/2023]
Abstract
Organotins(IV) exhibit significant in vitro anti-proliferative activity, while the in vivo tests are encouraging. The recent reports on the anti-proliferative activity of organotin(IV) compounds are summarized in this review. The period covered by this work goes back to 2009 until late 2018, while the earlier ones, are included over the previous review of our group published by S.K. Hadjikakou, N. Hadjiliadis, in Coord Chem Rev, 253 (2009) 235-249. During the last decade (2009-2018), >300 organotin(IV) derivatives with oxygen-donor ligands, such as carboxylic acids, amino-acids, Non Steroidal Anti-inflammatory Drugs (NSAIDs), biological active derivatives or natural products, organotins(IV) with sulfur containing ligands such as thiones, thiosemicarbazones, dithiocarbamates, organotin(IV) compounds of oximes and organotins(IV) with amines or semicarbazones were screened for their anti-proliferative effect against various cancer cell lines and their results are included in numerous reports over this period. Although much work has been carried out on organotin(IV) derivatives with O-donor ligands, however significant fewer reports are found on organotins(IV) with oximes as ligands.
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Affiliation(s)
- Christina N Banti
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
| | - Sotiris K Hadjikakou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece.
| | - Tuba Sismanoglu
- Istanbul University, Engineering Faculty, Department Chemistry, Istanbul, Turkey
| | - Nick Hadjiliadis
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece.
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6
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Applications of Mössbauer Spectroscopy in Biomedical Research. Cell Biochem Biophys 2018; 77:15-32. [PMID: 29704106 DOI: 10.1007/s12013-018-0843-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/07/2018] [Indexed: 10/17/2022]
Abstract
A brief review on the applications of Mössbauer spectroscopy in biomedical research discusses the results of more than fifty years of experience in this field. Basing on the numerous results the main directions of biomedical applications of Mössbauer spectroscopy are considered as follows: 1) studies of the quantitative changes of iron-containing biomolecules related to pathological processes; 2) studies of the qualitative changes in iron-containing biomolecules related to pathological processes; 3) studies of the effect of various environmental factors (physical, chemical, and biological) on iron-containing biomolecules; 4) studies of metabolic processes by means of analysis of the Mössbauer nuclides pathways in organisms; 5) studies of dynamic processes; 6) studies of pharmaceutical compounds and blood substitutes containing Mössbauer nuclides; 7) miscellaneous studies. Some examples of biomedical research using 57Fe, 57Co, 119Sn, 153Sm, and 197Au Mössbauer nuclides are presented.
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7
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Paul A, Hazra S, Sharma G, Guedes da Silva MFC, Koch B, Pombeiro AJL. Unfolding biological properties of a versatile dicopper(II) precursor and its two mononuclear copper(II) derivatives. J Inorg Biochem 2017; 174:25-36. [PMID: 28599129 DOI: 10.1016/j.jinorgbio.2017.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/26/2017] [Accepted: 05/30/2017] [Indexed: 11/30/2022]
Abstract
Synthesis, inter-conversions and biological study of the dichloro bridged dicopper(II) compound [CuLCl]2 (1) and its two mononuclear derivatives [CuLCl(H2O)]·H2O (2) and [CuLCl(py)] (3) (HL=2-(2-pyridylmethyleneamino)benzenesulfonic acid) are described. The dimeric compound 1 collapses into monomers 2 and 3 in the presence of coordinating solvents, water and pyridine, respectively, and 1 is regenerated upon simple stirring of 2 or 3 in methanol. The reactions of 1 with neutral (present study) and charged (earlier studies) ligands result in monomeric and multimeric compounds, respectively, attesting that it is a versatile dicopper(II) precursor. The anticancer activity of these copper complexes (1-3) was screened against lung (A-549) and breast (MDA-MB-231) human cancer cell lines. The IC50 (half maximal inhibitory concentration) value for one (3) of the compounds suggests preferential cytotoxicity against breast cancer MDA-MB-231 cell line. Furthermore, the IC50 value obtained for complex 3 is found to be almost two-fold times cytotoxic than the standard drug cisplatin. In addition, the underlying possible mechanism of its apoptosis-inducing efficacy in MDA-MB-231 cells has been rationalized by using flow cytometry (FACS) and Hoechst 33342/propidium iodide (PI) fluorescence staining. The stimulation of apoptotic induction for complex 3 has further been affirmed by reactive oxygen species (ROS) generation and mitochondrial aggregations studies.
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Affiliation(s)
- Anup Paul
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Susanta Hazra
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
| | - Gunjan Sharma
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
| | - Biplob Koch
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
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8
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Basu Baul TS, Dutta D, Duthie A, Prasad R, Rana NK, Koch B, Tiekink ERT. Triphenyltin(IV) benzoates with diazenyl/imino scaffold exhibiting remarkable apoptosis mediated by reactive oxygen species. J Inorg Biochem 2017; 173:79-92. [PMID: 28505480 DOI: 10.1016/j.jinorgbio.2017.04.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/25/2017] [Accepted: 04/23/2017] [Indexed: 01/13/2023]
Abstract
The cytotoxic potency of a series of triphenyltin(IV) compounds of general composition [Ph3Sn(Ln)] (1-6) has been probed in vitro employing MDA-MB-231 (human breast cancer) and HeLa (human cervical cancer) cell lines, where Ln=L1-3; isomeric 2/3/4-{(E)-2-[4-(dimethylamino)phenyl]diazenyl}benzoates and L4-6 are their corresponding isoelectronic imino analogues 2/3/4-[(E)-{[4-(dimethylamino)phenyl]methylidene}amino]benzoates. Compounds 1-6 have been characterized by elemental analysis and their spectroscopic properties were studied using IR and NMR (1H, 13C, 119Sn) techniques. The molecular structures of a pro-ligand 2-[(E)-{[4-(dimethylamino)phenyl]methylidene}amino]benzoic acid (HL4) and two representative molecules, Ph3Sn(L2) 2 and Ph3Sn(L5) 5, have been determined by X-ray crystallography. Structural analyses of 2 and 5 revealed distorted tetrahedral geometries within C3O donor sets owing to monodentate modes of coordination of the respective carboxylate ligands, close intramolecular Sn…O(carbonyl) interactions notwithstanding. Cytotoxic studies in vitro in MDA-MB-231 and HeLa cell lines revealed high activity, in sub-micromolar range, for all investigated compounds. Among these, 1 and 3 exhibited potent cytotoxicity most effectively towards MDA-MB-231 cells with a IC50 value of 1.19 and 1.44μM, respectively, whereas 5 showed remarkable activity towards HeLa cells with a IC50 value of 0.88μM, yet the series of compounds had minimal cytotoxic effect on normal HEK 293 (human embryonic kidney) cell line. The underlying investigation suggested that the compounds exert potent antitumor effect by elevating intracellular reactive oxygen species generation and cause delay in cell cycle by inhibiting cells at G2/M phase. The results presented herein suggest further development of this class of triphenyltin(IV) compounds-based drugs as potential anti-cancer therapies should be pursued.
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Affiliation(s)
- Tushar S Basu Baul
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, NEHU Permanent Campus, Umshing, Shillong 793 022, India.
| | - Dhrubajyoti Dutta
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, NEHU Permanent Campus, Umshing, Shillong 793 022, India
| | - Andrew Duthie
- School of Life & Environmental Science, Deakin University, Geelong, Victoria 3217, Australia
| | - Ritika Prasad
- Genotoxicology and Cancer Biology Lab, Department of Zoology, Banaras Hindu University, Varanasi, India
| | - Nishant Kumar Rana
- Genotoxicology and Cancer Biology Lab, Department of Zoology, Banaras Hindu University, Varanasi, India
| | - Biplob Koch
- Genotoxicology and Cancer Biology Lab, Department of Zoology, Banaras Hindu University, Varanasi, India.
| | - Edward R T Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
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Anasamy T, Thy CK, Lo KM, Chee CF, Yeap SK, Kamalidehghan B, Chung LY. Tribenzyltin carboxylates as anticancer drug candidates: Effect on the cytotoxicity, motility and invasiveness of breast cancer cell lines. Eur J Med Chem 2017; 125:770-783. [DOI: 10.1016/j.ejmech.2016.09.061] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 12/14/2022]
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10
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Hazra S, Paul A, Sharma G, Koch B, da Silva MFCG, Pombeiro AJL. Sulfonated Schiff base Sn(IV) complexes as potential anticancer agents. J Inorg Biochem 2016; 162:83-95. [PMID: 27338202 DOI: 10.1016/j.jinorgbio.2016.06.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 05/13/2016] [Accepted: 06/03/2016] [Indexed: 12/13/2022]
Abstract
Syntheses, crystal structures and biological activities of the diphenoxo-bridged diorgano dinuclear Sn(IV) compounds [Sn(Et)2(HL)(H2O)]2 (1) and [Sn(n-Bu)2(HL)(H2O)]2 (2) derived from the Schiff base 2-[(2,3-dihydroxyphenyl)methylideneamino]benzenesulfonic acid trihydrate (H3L·3H2O) are described. The monoprotonated form (HL2-) of the Schiff base behaves as O,O'-bidentate ligand, chelating the metal by the two phenoxo oxygen atoms. The hexacoordinated metal centres in 1 and 2 are bridged by a phenoxo oxygen and the remaining coordination positions are fulfilled by the other phenoxo oxygen, two organic groups (ethyl for 1 and n-butyl for 2) and a water molecule. A two dimensional zigzag sheet in 1 and three dimensional polymeric networks in H3L·3H2O and 2 are stabilized by a number of non-covalent, H-bonding and π⋯π stacking interactions. The DNA binding activities of these complexes have been studied by UV-vis and fluorescence spectroscopies. Their antiproliferative efficacies have been evaluated on A-549, HeLa and MDA-MB-231 cancer cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. IC50 values (1.35±0.23, 2.43±0.54 and 1.74±0.04μM for 2) are indicative of a substantial cytotoxicity of 2, mainly towards the A-549 lung cancer cell line. The greater antiproliferative efficacy of 2has further been studied by fluorescence activated cell sorting (FACS) and nuclear morphology by Hoechst/propidium iodide (PI) double staining method. The possible mode of the apoptotic pathway for 2has been substantiated by the reactive oxygen species (ROS) generation studies.
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Affiliation(s)
- Susanta Hazra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Anup Paul
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Gunjan Sharma
- Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Biplob Koch
- Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India.
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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Li Q, Liu X, Cheng S, Zhang R, Shi Y, Ma C. Novel organotin complexes derived from 2,2′-selenodiacetic acid: synthesis and biological evaluation. RSC Adv 2016. [DOI: 10.1039/c6ra01948j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Ma C, Liu X, Cheng S, Li Q, Zhang R. A novel 4-fluorobenzenetelluronic trimethyltin ester: synthesis, characterization and in vitro cytotoxicity assessment. NEW J CHEM 2016. [DOI: 10.1039/c6nj00288a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel 4-fluorobenzenetelluronic trimethyltin ester (Me3Sn)4[p-F-PhTe(μ-O)(OH)O2]2 (1) has been prepared and structurally characterized, and apoptotic cytotoxicity assessments for A549 cells are made.
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Affiliation(s)
- Chunlin Ma
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
| | - Xinglong Liu
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
| | - Shuang Cheng
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
| | - Qianli Li
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
| | - Rufen Zhang
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
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13
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Basu Baul TS, Linden A. Synthesis and Structural Facets of Dialkyltin(IV) Complexes Constructed from 2-(2-(3, 5-Dimethyl-4-oxocyclohexa-2, 5-dien-1-ylidene)hydrazinyl)benzoate. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Singh KS, Roy M, Devi SS, Devi WR, Singh C. Synthesis, characterization and evaluation of in vitro antimicrobial activity of tri-n-butyltin(IV) complexes of para-azo-carboxylates derived from substituted anilines and 2,4-DNP. MAIN GROUP CHEMISTRY 2015. [DOI: 10.3233/mgc-140159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Keisham Surjit Singh
- Department of Chemistry, National Institute of Technology, Agartala, Jirania, Tripura (west), India
| | - Manojit Roy
- Department of Chemistry, National Institute of Technology, Agartala, Jirania, Tripura (west), India
| | - Sanasam Sachika Devi
- Department of Chemistry, National Institute of Technology, Agartala, Jirania, Tripura (west), India
| | - W. Radhapiyari Devi
- Institute of Bioresources and Sustainable Development (IBSD), Takyelpat, Imphal, Manipur, India
| | - C.B. Singh
- Institute of Bioresources and Sustainable Development (IBSD), Takyelpat, Imphal, Manipur, India
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Zhang R, Hu Z, Li Q, Yan P, Wang S, Ma C. Syntheses, Characterizations, Crystal structures, and Antitumor Activities of Arenetelluronic Triorganotin Esters. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Rufen Zhang
- School of Chemistry and Chemical Engineering; Liaocheng University; Liaocheng 252059 People's Republic of China
| | - Zhengsong Hu
- School of Chemistry and Chemical Engineering; Liaocheng University; Liaocheng 252059 People's Republic of China
| | - Qianli Li
- School of Chemistry and Chemical Engineering; Liaocheng University; Liaocheng 252059 People's Republic of China
| | - Peizhen Yan
- School of Chemistry and Chemical Engineering; Liaocheng University; Liaocheng 252059 People's Republic of China
| | - Suna Wang
- School of Chemistry and Chemical Engineering; Liaocheng University; Liaocheng 252059 People's Republic of China
| | - Chunlin Ma
- School of Chemistry and Chemical Engineering; Liaocheng University; Liaocheng 252059 People's Republic of China
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18
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Chiral nano heterobimetallic DNA receptors: In vitro binding studies, cleavage activity and DNA condensation studies (TEM and AFM imaging). J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.04.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Basu Baul TS, Paul A, Pellerito L, Scopelliti M, Duthie A, de Vos D, Verma RP, Englert U. An in vitro comparative assessment with a series of new triphenyltin(IV) 2-/4-[(E)-2-(aryl)-1-diazenyl]benzoates endowed with anticancer activities: Structural modifications, analysis of efficacy and cytotoxicity involving human tumor cell lines. J Inorg Biochem 2012; 107:119-28. [DOI: 10.1016/j.jinorgbio.2011.10.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 09/10/2011] [Accepted: 10/17/2011] [Indexed: 10/16/2022]
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Basu Baul TS, Paul A, Linden A. Synthesis, characterization and crystal structures of 2-[(E)-2-(4-hydroxy-3,5-dimethylphenyl)-1-diazenyl]benzoic acid and its polymeric and monomeric triorganotin(IV) complexes. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2011.09.018] [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]
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21
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Structural characterization of triorganotin(IV) complexes with sodium fusidate and DFT calculations. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Basu Baul TS, Paul A, Tiekink ERT. 4-[(E)-(5-tert-Butyl-2-hydroxy-phen-yl)diazen-yl]benzoic acid benzene hemisolvate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o540. [PMID: 21580311 PMCID: PMC2983727 DOI: 10.1107/s1600536810003880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Accepted: 02/01/2010] [Indexed: 12/04/2022]
Abstract
The title benzene hemisolvate, C17H18N2O3·0.5C6H6, features an essentially planar (the r.m.s. deviation of the non-H atoms, excluding methyl-C, is 0.071 Å) diazo molecule with an E conformation about the N=N bond, and a half-molecule of benzene disposed about a centre of inversion. The dihedral angle formed between the benzene rings of the diazo molecule is 7.69 (12)°. In the crystal, centrosymmetrically related dimers associate via the eight-membered carboxylic acid dimer synthon, {⋯HOC(=O)}2, and these are connected into a supramolecular chain along the b axis via C—H⋯O contacts.
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