Synthesis and low-frequency vibrational spectra of some bis(alkanethiolato)- and bis(benzenethiolato)-aurate(I) complexes

Abstract

Synthesis and Low-frequency Vibrational Spectra of Some Bis(a1kanethiolato)-and Bis( benzenethiolat0)-aurate( I) Complexes

Structure of tetraphenylphosphonium bis(benzenethiolato)aurate(I), [P(C6H5)4][Au(C6H5S)2]

“…These findings contrast with the similar, Au I thiomalate system, where a 13C NMR study (Isab & Sadler, 1976) (Isab & Sadler, 1976). The IR study of the dithiolate complexes [Au(SR)21-(R = Me, tBu, Ph) (Bowmaker & Dobson, 1981) suggests the presence of linearly coordinated gold(I) but for the title compound, where R --Ph, the far-IR spectrum is a complicated one, particularly in the region 230-260cm -x where a group of bands, attributed to v(Au-S), is observed. Since the reason for this multiplicity is not obvious the crystals were subjected to X-ray analysis.…”

“…An investigation into the coordination geometry of gold(I) thiolate complexes led to the synthesis of several simple anionic derivatives of the general formula [Au(SR)2]-, where R = Me, tBu or Ph (Bowmaker & Dobson, 1981). Only one such anion had previously been isolated, where R was the strongly electron-withdrawing group, C6F 5 (Beck, Stettner, Todros & Schwarzhaus, 1967).…”

Hydroxyl Radical Generation and DNA Nuclease Activity: A Mechanistic Study Based on a Surface‐Immobilized Copper Thioether Clip‐Phen Derivative

“…By integration of the area under the reductive wave (Figure , dotted line), the surface coverage ( Γ ) was calculated to be 5.1×10 −10 mol cm −2 , which is a value consistent with monolayer coverage, assuming a one‐electron process. The SERS spectrum of the modified gold electrode obtained in air (Figure S2 of the Supporting Information) shows a relative enhancement, in comparison to the normal Raman spectrum, of the vibrational modes associated to CS bonding at 717 and 736 cm −1 . This result indicates that the adsorption of the [Cu(2CP‐Bz‐SMe)] 2+ complex occurs through the sulfur atom of the thioether fragment, as expected for sulfur‐containing molecules .…”

Cationic Gold(I) Phosphanyl Thiolates: Aurophilic Interactions in the Solid State and in Solution

“…[22] Physical Measurements: 1 H and 31 P NMR spectra were recorded with a Varian Gemini 200 instrument working at 200 MHz. DOSY experiments were performed with a Varian INOVA600 spectrometer operating at 600 MHz for 1 H by using a 5 mm broadband inverse probe with z axis gradient; and the sample temperature was maintained at 25°C.…”