- Synthesis, Characterization and Antimicrobial Studies of Some New Tellurium(IV) Complexes Derived from 2-[(2-Hydroxyphenyl)imino methyl]-1-naphthol Schiff Base
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This article reports the synthesis, characterization and antimicrobial screening of a tridentate 2-[(2-hydroxyphenyl)imino methyl]-1naphthol ligand (H2AP) and its organotellurium(IV) complexes. Structural characterization of the synthesized ligand and com
- Dalal, Mahak,Garg, Sapana,Kumar, Manish,Verma, K. K.
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p. 183 - 190
(2022/01/08)
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- Some organotellurium(iv) complexes of 1-methyl-3-(p-tolylimino)indolin-2-one schiff base
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Six new hexa-coordinated organotellurium(IV) complexes of type RTeCl3 NMeIPT and R2TeCl2 NMeIPT (R = 4-hydroxyphenyl, 4- methoxyphenyl or 3-methy-4-hydroxyphenyl; NMeIPT(L) = Schiff base (1-methyl-3-(p-tolylimino)indolin-2-one) derived from condensation o
- KUMAR, MANISH,VERMA,GARG, SAPANA
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p. 1236 - 1244
(2021/06/09)
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- COMPOSITION FOR RESIST UNDERLAYER FILM FORMATION, UNDERLAYER FILM FOR LITHOGRAPHY, AND PATTERN FORMATION METHOD
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The present invention provides a composition for resist underlayer film formation comprising a tellurium-containing compound or a tellurium-containing resin.
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Paragraph 0312-0315
(2020/08/22)
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- OPTICAL COMPONENT FORMING COMPOSITION AND CURED PRODUCT THEREOF
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The present invention provides an optical component forming composition comprising a tellurium-containing compound or a tellurium-containing resin.
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Paragraph 0358-0361
(2020/08/30)
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- The Anticancer Activity of Organotelluranes: Potential Role in Integrin Inactivation
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Organic TeIV compounds (organotelluranes) differing in their labile ligands exhibited anti-integrin activities in vitro and anti-metastatic properties in vivo. They underwent ligand substitution with l-cysteine, as a thiol model compound. Unlike inorganic TeIV compounds, the organotelluranes did not form a stable complex with cysteine, but rather immediately oxidized it. The organotelluranes inhibited integrin functions, such as adhesion, migration, and metalloproteinase secretion mediation in B16F10 murine melanoma cells. In comparison, a reduced derivative with no labile ligand inhibited adhesion of B16F10 cells to a significantly lower extent, thus pointing to the importance of the labile ligands of the TeIV atom. One of the organotelluranes inhibited circulating cancer cells in vivo, possibly by integrin inhibition. Our results extend the current knowledge on the reactivity and mechanism of organotelluranes with different labile ligands and highlight their clinical potential.
- Silberman, Alon,Kalechman, Yona,Hirsch, Shira,Erlich, Ziv,Sredni, Benjamin,Albeck, Amnon
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p. 918 - 927
(2016/05/24)
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- Studies on the pyrazine complexes of some diaryltellurium dihalides
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Nine new Pyrazine Complexes of diaryltelluriumdihalides, R 2TeX2.Pyz (R =p-methoxyphenyl, p-hydroxyphenyl and 3-methyl- 4-hydroxy phenyl; X=Cl, Br, I; Pyz = pyrazine) have been prepared by reactions of diaryltelluriumdihalides with pyrazine in 1:1 molar ratio. These complexes have been characterized by elemental analysis, conductance and cryoscopic measurements, infrared and proton magnetic resonance spectral studies. Conductance studies in nitrobenzene, acetone and acetonitrile predict their non-electrolyte type behaviour in these solvents, which is well supported by cryoscopic data in nitrobenzene. IR and 1H NMR studies suggest the unidentate nature of pyrazine in these complexes, involving only one nitrogen atom in coordination. Thus, tellurium in R2TeX2.Pyz complexes attains a coordination number of five probably in a square pyramidal.
- Narwal, Jitender Kumar,Chhabra, Shashi,Malik, Rajesh Kumar,Garg, Sapana,Verma
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p. 1339 - 1349
(2014/05/06)
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- Studies on nickel(II) and palladium(II) complexes with some tetraazamacrocycles containing tellurium
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The synthesis of 10-membered and 12-membered tellurium-containing tetraazamacrocyclic complexes of divalent nickel and palladium by template condensation of diaryltellurium dichlorides, (aryl = p-hydroxyphenyl, 4-hydroxy-3-methyl-phenyl, p-methoxyphenyl)
- Rathee, Nitu,Verma, Krishan Kumar
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experimental part
p. 325 - 333
(2012/05/20)
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- Synthesis and characterization of some group 12 metal complexes with tellurium containing 10-membered tetraazamacrocyclic ligands
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A new series of 10-membered tellurium containing tetraazamacrocyclic complexes, [ML1Cl2], [ML2Cl2] and [ML3Cl2], where [M=Zn(II), Cd(II), Hg(II); L1, L2 and L3=10-membered tellurium containing tetraazamacrocyclic ligands] have been prepared via the templa
- Nitu,Verma
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body text
p. 1158 - 1163
(2012/06/18)
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- SYNTHESIS AND STRUCTURES OF AROMATIC AND HETEROCYCLIC TELLURIUM COMPOUNDS. XXXI. REACTIONS OF ARYLTELLURIUM OXOCHLORIDES
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The reactions of aryltellurium oxochlorides with the lowest aliphatic acid anhydrides lead to diaryltellurium dichlorides, Te, and CO2 through the intermediate formation of diaryltellurium chloride diacylates.Aryltellurium trichlorides and carboxylic acid anhydrides are formed in the reaction with acyl chlorides.The chlorine atom in the tellurium oxochlorides is replaced by a phenyl group on reaction with phenyllithium.The reaction with dimedone in the presence of triethylamine leads to diaryl ditellurides and a product of trimerization of a carbene, viz., a dimedone derivative that is formed in the thermal decomposition of the intermediate ylid.
- Rivkin, B. B.,Maksimenko, A. A.,Sadekov, I. D.
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p. 1049 - 1055
(2007/10/02)
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- Synthesis and Characterisation of Diorganotellurium(IV) Bis(haloacetates)
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A new diorganotellurium bis(haloacetates) of the type R2Te(OCOR')2 (R = C6H5, p-MeOC6H4, CH3; R' = CF3, CCl3, CHCl2 and CH2Cl) have been prepared and characterised.The IR spectral data of these haloacetates indicate that both the haloacetate groups are eq
- Srivastava, T. N.,Singh, Jai Deo
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p. 260 - 262
(2007/10/02)
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- REACTIONS OF TELLURIUM(IV) CHLORIDES WITH SOME ORGANOSILICON HYDRIDES
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The reactions of several organosilicon hydrides PhnSiH(4-n), n = 1, 2; R3SiH, R3 = Ph3, Ph2Me, PhMe2, (n-C6H13)3; (p-Me2HSi)2C6H4, with TeCl4 in benzene resulted in the formation of tellurium metal and chlorosilanes in 75-90percent yields.Similar reactions with aryltellurium trichlorides (RTeCl3, R = Ph, p-MeOC6H4, p-EtOC6H4) proceeded in two different ways.On stirring at room temperature for 6-8 h, diaryl ditellurides and chlorosilanes were obtained in 70-95percent yields whereas on refluxing for 6-10 h, tellurium powder and diaryltellurium dichlorides were obtained along withthe chlorosilanes in 80-95percent yields.Diaryltellurium dichlorides (R2TeCl2, R = Ph, p-MeOC6H4) did not react readily with PhSiH3 nor with Ph3SiH.
- Chadha, Raj K.,Drake, John E.,Neo, Mary K. H.
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- SECONDARY BONDING. PART 13. ARYL-TELLURIUM(IV) AND -IODINE(III) ACETATES AND TRIFLUOROACETATES. THE CRYSTAL AND MOLECULAR STRUCTURES OF BIS-(p-METHOXYPHENYL)TELLURIUM DIACETATE, μ-OXO-BIS HYDRATE, AND BENZENE
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The crystal and molecular structures of the title compounds have been determined from diffractometer data by the heavy-atom method, and their preparations are described.Crystals of (p-MeOC6H4)2Te(O2CMe)2 (1) are monoclinic, space group P21/c, with unit-cell dimensions a = 9.529(2), b = 11.984(2), c = 17.035(2) Angstroem, β = 101.70(2) deg, Z = 4, and for 3033 observed reflections (I/?(I) > 3.0), R = 0.022.Crystals of 2O >2*H2O (2) are triclinic, space group , with unit-cell dimensions a = 13.988(3), b= 14.287(3), c = 15.689(3) Angstroem, α = 80.40(2), β = 81.89(2), γ = 86.65(2) deg, Z = 2, and for 5290 observed reflections, R = 0.042.Crystals of PhI(O2CCF3)2 (3) are triclinic, spacegroup , with unit-cell dimensions a = 9.787(4), b= 9.055(3), c = 7.674(3) Angstroem, α = 91.45(3), β = 99.78(3), γ = 89.21(3) deg, Z = 2, and for 2104 observed reflections, R = 0.037.All three compounds have pseudo-trigonal-bipyramidal primary geometry , and form secondary bonds to give pentagonal planar systems around Te and I, also with linear C-Te...O systems.In the light of these results, previously published tellurium nitrate structures are re-interpreted.
- Alcock, Nathaniel W.,Harrison, W. David,Howes, Colin
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p. 1709 - 1716
(2007/10/02)
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- SYNTHESIS AND STRUCTURE OF AROMATIC AND HETEROCYCLIC COMPOUNDS OF TELLURIUM. XXII. A NEW METHOD FOR THE SYNTHESIS OF DIARYLTELLURIUM DICHLORIDES
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A new universal method was developed for the production of unsymmetrical and symmetrical diaryltellurium dichlorides and dibromides on the basis of the reaction of diaryl ditellurides with arenediazonium ions in the presence of copper(II) halides.
- Sadekov, I. D.,Maksimenko, A. A.,Rivkin, B. B.
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p. 541 - 546
(2007/10/02)
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