On December 7, 2006, Ju-Nam, Yon; Bricklebank, Neil; Allen, David W.; Gardiner, Philip H. E.; Light, Mark E.; Hursthouse, Michael B. published an article.Safety of (6-Bromohexyl)triphenylphosphonium bromide The title of the article was Phosphonioalkylthiosulfate zwitterions-new masked thiol ligands for the formation of cationic functionalised gold nanoparticles. And the article contained the following:
The authors report the synthesis and structural characterization of a new family of stable phosphonioalkylthiosulfate zwitterions, R3P+(CH2)nS2O3- (R = Ph or Bu, n = 3,4,6, 8 or 10) which behave as cationic masked thiolate ligands with applications in the functionalization of gold nanoparticles, having potential as new diagnostic biorecognition systems. The ligands were prepared by treatment of ω-bromoalkylphosphonium salts with sodium thiosulfate. The crystal and mol. structures of the zwitterions (R = Ph, n = 3) and (R = Bu, n = 3) were determined A series of phosphonioalkanethiolate-capped gold nanoparticles dispersed in water was prepared by borohydride reduction of potassium tetrachloroaurate in the presence of the zwitterions in a dichloromethane-water system. UV-visible spectroscopy and scanning transmission electron-microscopy indicated that capped nanoparticles of ∼5 nm diameter were present. The experimental process involved the reaction of (6-Bromohexyl)triphenylphosphonium bromide(cas: 83152-22-1).Safety of (6-Bromohexyl)triphenylphosphonium bromide
The Article related to phosphonioalkylthiosulfate zwitterion masked thiol ligand cationic functionalized gold nanoparticle, Biochemical Methods: Apparatus and other aspects.Safety of (6-Bromohexyl)triphenylphosphonium bromide
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary