Synthesis and Characterization of [Ag4(μ3-SC2B10H11)2(μ-O3SCF3)2(PPh3)4]:  A Silver Complex with a μ3-Thiolate Ligand

Artigas, M.; Crespo, Olga; Gimeno, M. Concepción; Jones, Peter G.; Laguna, Antonio; Villacampa, M. Dolores

doi:10.1021/ic970665a

Cited by 27 publications

(8 citation statements)

References 29 publications

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“…The silver center lies 0.30 Å out of the plane formed by the N11, N21 and P atoms, associated with a contact to a triflate oxygen, Ag−O3 2.725(3) Å. This value is somewhat longer than the 2.601(4) Å in [Ag 4 {μ‐SC 2 B 10 H 10 } 2 (μ‐O 3 SCF 3 ) 2 (PPh 3 ) 4 ],26 but both values can be considered to lie in a typical range for triflate‐silver contacts. The same oxygen atom acts as an acceptor for a hydrogen bond from the NH group [N−O 3.021(4), H−O 2.20(2) Å] (Table 2).…”

Section: Resultsmentioning

confidence: 93%

Gold, Silver and Palladium Complexes with the 2,2′‐Dipyridylamine Ligand

et al. 2003

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Reaction of the 2,2′‐dipyridylamine (Py2NH) ligand with various gold and silver starting products leads to three‐ or four‐coordinate complexes. The structure of compound [Ag(NHPy2)(PPh3)]OTf shows weak interactions which produce bands of molecules parallel to the z axis. Other hydrogen bonds of the type C−H···O serve to link the ribbons. The derivative PPN[Au(Py2N)2] has also been obtained using PPN[Au(acac)2] [PPN = bis(triphenylphosphanyl)iminio, acac = acetylacetonate] as starting product to deprotonate the ligand. The palladium complex [PdCl2(Py2NH)2] is also reported. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

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Section: Resultsmentioning

confidence: 93%

Gold, Silver and Palladium Complexes with the 2,2′‐Dipyridylamine Ligand

et al. 2003

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“…The bond lenghts are normal in tetra-coordinated silver compounds, with Ag-P distance of 2.380(2) Å and Ag-O carboxamide distance of 2.265(4) Å, whereas the Ag-O triflate bonds (2.444(4) Å and 2.574(4) Å) are longer than the carboxamide oxygen. However, these Ag-O distances are shorter than the usually found in silver-triflate complexes with weak bonds [27,28].…”

Section: X-ray Diffraction Studiesmentioning

confidence: 60%

“…oxygen. However, these Ag-O distances are shorter than the usually found in silver-triflate complexes with weak bonds [27,28].…”

Section: X-ray Diffraction Studiesmentioning

confidence: 60%

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Cytotoxic Gold(I) Complexes with Amidophosphine Ligands Containing Thiophene Moieties

et al. 2019

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A new phosphine ligand bearing a thiophene moiety, C4H3SNHCOCH2CH2PPh2 (L), has been prepared by reaction of the aminophosphine Ph2PCH2CH2NH2 with thiophenecarbonylchloride in the presence of triethylamine. The coordination behavior towards gold(I), gold(III) and silver(I) species has been studied and several metal compounds of different stoichiometry have been achieved, such as [AuL2]OTf, [AuXL] (X = Cl, C6F5), [Au(C6F5)3L], [AgL2]OTf or [Ag(OTf)L]. Additionally, the reactivity of the chloride gold(I) species with biologically relevant thiolates was explored, thus obtaining the neutral thiolate compounds [AuL(SR)] (SR = 2-thiocitosine, 2-thiolpyridine, 2-thiouracil, 2-thionicotinic acid, 2,3,4,6-tetra-6-acetyl-1-thiol-β-d-glucopyranosato or thiopurine). The antitumor activity of the compounds was measured by the MTT method in several cancer cells and the complexes exhibit excellent cytotoxic activity.

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“…The reagents CNtBu, CNPh, CNCy, and CNBn were purchased from Aldrich. The starting material [Cp*Fe(µ-SEt) 3 FeCp*] (1), [8] (Ph 3 P)CuCl, [15] (Ph 3 P)AgOTf, [16] and (Ph 3 P)AuCl [17] were prepared according to the literature methods. [Cp*FeSEt(CNCy) 2 ] (2c): The reaction was carried out analogously to the procedures described for 2a by treatment of 1 (160 mg, 0.283 mmol) with CNCy (160 mg, 1.468 mmol).…”

Section: Methodsmentioning

confidence: 99%