14911-01-4Relevant articles and documents
Spectroscopic, DFT analysis, antimicrobial and cytotoxicity studies of three gold(III) complexes
Ramadan, Ramadan M.,Noureldeen, Amani F. H.,Abo-Aly, Mohamed M.,El-Medani, Samir M.
, p. 213 - 225 (2022)
Three gold(III) complexes were synthesized using 2-pyrazinecarboxamide, pyridine or bipyridine ligand. Complexes were characterized by spectroscopic and analytical techniques (IR, Raman, 1H NMR, mass spectrometry and elemental analysis). Thermogravimetry
Reactions of gold(III) complexes with alkenes in aqueous media: Generation of bis-(β-hydroxyalkyl)gold(III) complexes
Rezsnyak, Chad E.,Autschbach, Jochen,Atwood, Jim D.,Moncho, Salvador
, p. 1153 - 1165 (2013/07/28)
Reactions of gold(III) complexes with ethylene and propylene in water provide the first such examples not accompanied by reduction of the gold. HAuC14 and AuCL3(TPPTS) produce organic products (alcohol, aldehyde/ketone, etc.) with gold reduction to the metal. However, [Au(bipy)CL2] Cl in water produces the gold(III) β-hydroxy complexes, [Au(bipy)(CH2CH2OH)2]X (X =Cl, PF6) and [Au(bipy)(CH2CH(OH)CH3]Cl, which are stable in solution. These complexes could not be isolated, but were characterized by NMR and high-resolution mass spectra. [Au(terpy)Cl]CL2 fails to react with ethylene in water, even at elevated temperatures. DFT computations were performed to investigate the reaction mechanism.
Equilibria of the Substitution of Pyridine, 2,2′-Bipyridyl, and 1,10-Phenanthroline for Cl- in AuCl-4 in Aqueous Solution
Mironov,Tsvelodub
, p. 143 - 148 (2008/10/08)
Equilibria of AuCl-4 + HL+ = AuLCl3-ii + H+ + (4 - i)Cl- substitutions for L = pyridine (py, i = 3), 2,2′-bipyridyl (bipy, i = 2), or 1,10-phenanthroline (phen, i = 2) are studied spectrophotometrically at 25°C and I = 1 mol/l in acid aqueous solution. The equilibrium constants are determined to be logβ*1 = -2.13 ± 0.05 for py, 3.6 ± 0.1 for bipy, and 4.3 ± 0.1 for phen. With reference to the protonation constants of the amines, the equilibrium constants for AuCl-4 + L = AuLCl3-ii + (4 - i)Cl- are logβ1 = 3.3 for py, 8.2 for bipy, and 9.5 for phen. No aqueous complex species other than those specified above are found. The possibility of the formation of complexes in which the bidentate ligand is coordinated to the central atom through one donor atom is addressed.