Eccentric inorganic-polymeric nanoparticles formation by thermal induced cross-linked esterification and conversion of eccentricity to raspberry-like Janus
Luminescence Tribochromism and Bright Emission in Gold(I) Thiouracilate Complexes
作者:Young-A Lee、Richard Eisenberg
DOI:10.1021/ja034560k
日期:2003.7.1
New dinuclear Au(I) complexes containingbridging thiouracilate and bis(diphenylphosphino)methaneligands have been synthesized and characterized structurally and spectroscopically. The compounds exhibit a unique behavior of solid-state luminescence tribochromism in which photoemission turns on upon gentle grinding of the sample and a sensitivity to pH in fluid solution. The emissive form in the solid
Heterometallic Assemblies with Bridging Cyano Ligands
作者:Stephan Back、Heinrich Lang
DOI:10.1021/om9905299
日期:2000.3.6
cyanides (Ph3P)AuCN (2) and Na[Au(CN)2] (5) react with [Ti](C⋮CSiMe3)2}Cu(NCMe)[BF4] (1) or [Ti](C⋮CSiMe3)2}CuOTf (4) ([Ti] = (η5-C5H4SiMe3)Ti) to give cationic heterotrimetallic [Ti](C⋮CSiMe3)2}Cu[NCAu(PPh3)][BF4] (3) or pentanuclear [Ti](C⋮CSiMe3)2Cu}2[N,N‘-μ-Au(CN)2][OTf] (6). In contrast, the reaction of [Ti](C⋮CSiMe3)2}Ag[BF4] (7) with 2 produces neutral [Ti](C⋮CSiMe3)2}Ag[NCAu(PPh3)][FBF3]
The Leaching of Gold in Cyanide Solutions in the Presence of Impurities II. The Effect of Silver
作者:Matthew I. Jeffrey、Ian M. Ritchie
DOI:10.1149/1.1393894
日期:——
electrochemical quartz crystal microbalance was used to investigate the effect of lead on the leaching of gold in aerated alkaline cyanidesolutions. It was found that the addition of trace amounts of lead substantially increased the leaching rate, and it is believed that the role of lead was to modify the surface of the gold by cementation. Complementary electrochemical studies showed that lead acts