Water dispersible supramolecular assemblies built from luminescent hexarhenium clusters and silver(I) complex with pyridine-2-ylphospholane for sensorics

摘要: Abstract The work introduces regularities and driving forces of self-assembly hexarhenium clusters [{Re6S8}L6]n− (L = SO32−, CN−, OH−) with [AgL′]+ (L′ = pyridine-2-ylphospholane) produced by dissociation [Ag2L′2]2+ in aqueous solutions. formation nano-sized Re6 Ag assemblies is detected the spectral measurements solutions solid-state analysis separated colloids. nature L highlighted as main factor affecting assembly. poor affinity SO32− ligands to Ag+ restricts assembly [{Re6S8}(SO3)6]10− silver(I) complexes. [{Re6S8}(OH)6]4− more promising candidate for heterometallic contributed both counter-ion binding coordination bonds, while efficient via nitrogen cyanide [{Re6S8}(CN)6]4− force stronger impact relative cations on solutions, well presence L′ colloidal phase, indicate important role ligand studied supramolecular systems. cluster-centered luminescence serves signaling system at glutathione, cysteine dithiothreitol ions assemblies. based are able discriminate glutathione versus cysteine, formed give unselective response biothiols concentration level 2 μM.