Synthesis, crystal structure and theoretical studies of aryltellurenyl tetramethylthiourea(tmtu) iodine complexes: Ph-Te(tmtu)I (1) and β-naphtyl-Te(tmtu)I (2)

Lang, Ernesto Schulz; Ledesma, Gabriela N.; Abram, Ulrich; Vega-Teijido, Maurício; Caracelli, Ignez; Zukerman-Schpector, Júlio

doi:10.1524/zkri.2006.221.2.166

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…Most of these complex salts lie close to the ionic/covalent borderline and show properties of supramolecules due to interionic, fairly strong secondary bonds of the types NHÁ Á ÁX, EÁ Á ÁX (E = chalcogen) or XÁ Á ÁX. Cationic organochalcogen complexes are uncommon, since the covalent nature of the bonds as a result of the strong cation-anion approximation overcomes the ionic character of the salts, so they can be better depicted as neutral substances, like for example, (DMSeU) 2 Te 2 Br 6 (DMSeU = N, N-dimethylselenourea) [6] or Ph-Te(tmtu)I and b-naphthyl-Te(tmtu)I (tmtu = N,N 0 -tetramethylthiourea) [7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of new T-shaped hypervalent complexes of tellurium showing Te–π-aryl interactions: X-ray characterization of [(mes)XTe(μ-X)Te(mes)(etu)] (X=Br, I) and [Ph(etu)Te(μ-I)Te(etu)Ph][PhTeI4] (mes=mesityl; etu=ethylenethiourea)

Lang¹,

Oliveira²,

Casagrande³

2006

Journal of Organometallic Chemistry

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Section: Introductionmentioning

confidence: 99%

Synthesis of new T-shaped hypervalent complexes of tellurium showing Te–π-aryl interactions: X-ray characterization of [(mes)XTe(μ-X)Te(mes)(etu)] (X=Br, I) and [Ph(etu)Te(μ-I)Te(etu)Ph][PhTeI4] (mes=mesityl; etu=ethylenethiourea)

Lang¹,

Oliveira²,

Casagrande³

2006

Journal of Organometallic Chemistry

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Pt, Pd and Hg Complexes with Potentially Tridentate Telluroether Ligands

et al. 2015

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Keywords: Tellurium / Ligand design / Palladium / Platinum / Mercury / Solid-state structures N-[3-(Phenyltellanyl)propyl]picolinamide (HL1) or N-[NЈЈ,NЈЈ-methyl(phenyl)aminothiocarbonyl]-NЈ-[3-(phenyltellanyl)propyl]benzamidine (HL2) react with equivalent amounts of PtCl 2 or PdCl 2 with formation of neutral [MCl(L1-κN,NЈ,Te)] or [MCl(L2-κS,N,Te)] chelates. A corresponding reaction of HL2 with HgCl 2 results in the formation of [HgCl 2 (HL2-κS,Te)]. Treatment of [PtCl(L1-N,NЈ,Te)] with elemental iodine results in the exclusive oxidation of the metal [a] Scheme 2. Synthesis of HL1 and HL2.Both products were obtained as viscous oils, which could not be solidified even after several chromatographic purifi-Eur.

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Organotellurium(II) and ‐(IV) Compounds with Picolinoylbis(thioureas): From Simple 1 : 1 Adducts to Multimetallic Aggregates

dos Santos,

Schwade,

Lang

et al. 2024

Eur J Inorg Chem

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Reactions of 2,6‐dipicolinoylbis(N,N‐diethylthiourea) (H2LEt) with common tellurium(IV) starting materials such as PhTeBr3 or TeBr4 yield various tellurium(IV) and tellurium(II) compounds depending on the conditions applied. Equimolar amounts of H2LEt and PhTeBr3 give the 1:1 complex [PhTeIVBr3(H2LEt)], while with an excess of H2LEt, the tellurium compound is partially reduced and a {PhTeII}+ building block coordinates to both sulfur atoms of H2LEt under formation of the ion pair [PhTeII(H2LEt)][PhTeIVBr4]. Similar reactions between H2LEt and TeBr4 give the neutral monomer [TeIIBr2(H2LEt)] or the coordination polymer [TeIIBr2(H2LEt)]∞. The latter compound is also formed with the assistance of Pb2+ ions. While the lead ions do not appear in the isolated product, similar reactions with transition metal ions such as Ni2+, Mn2+, or Co2+ result in the formation of heterobimetallic complexes, in which Te(II) building blocks are directed to the sulfur atoms of the deprotonated ligand {H2LEt2‐S,S}2‐, while the transition metal ions occupy central coordination positions between two of the organic ligands using the pyridine nitrogen atom, carbonyl oxygen atom(s) and/or the nitrogen atoms of the thiourea units.

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Synthesis, crystal structure and theoretical studies of aryltellurenyl tetramethylthiourea(tmtu) iodine complexes: Ph-Te(tmtu)I (1) and β-naphtyl-Te(tmtu)I (2)

Abstract: Synthesis, crystal structure and theoretical studies of aryltellurenyl tetramethylthiourea(tmtu) iodine complexes: Ph-Te(tmtu)I (1) and b-naphtyl-Te(tmtu)I (2)

Cited by 5 publications

References 21 publications

Synthesis of new T-shaped hypervalent complexes of tellurium showing Te–π-aryl interactions: X-ray characterization of [(mes)XTe(μ-X)Te(mes)(etu)] (X=Br, I) and [Ph(etu)Te(μ-I)Te(etu)Ph][PhTeI4] (mes=mesityl; etu=ethylenethiourea)

Synthesis of new T-shaped hypervalent complexes of tellurium showing Te–π-aryl interactions: X-ray characterization of [(mes)XTe(μ-X)Te(mes)(etu)] (X=Br, I) and [Ph(etu)Te(μ-I)Te(etu)Ph][PhTeI4] (mes=mesityl; etu=ethylenethiourea)

Pt, Pd and Hg Complexes with Potentially Tridentate Telluroether Ligands

Organotellurium(II) and ‐(IV) Compounds with Picolinoylbis(thioureas): From Simple 1 : 1 Adducts to Multimetallic Aggregates

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