Surface-enhanced Raman spectra of 2,2'-bipyrimidine adsorbed on silver sol

Disilver(I) Coordination Complexes: Synthesis, Reaction Chemistry, and Their Potential Use in CVD and Spin‐Coating Processes for Silver Deposition

“…For complex 6, a very strong absorption band at 1384 cm -1 is observed which proves the presence of a nitrate anion, [11] and hence points to a polymeric structure as partly evidenced by conductivity measurements. [12] The molecular structures of 5, 6, and 8 in the solid state were established by single X-ray crystallographic studies (Figures 1-8).…”

“…Because of the low basicity of bipym only small amounts of 5 could be isolated. A more efficient synthesis methodology to prepare 5 is the reaction of [(bipym)AgNO 3 ] (6) [11] with the ammonium salt […”

SERS investigation on the adsorption and photoreaction of 4‐nitroanisole in Ag hydrosols

“…From the dawning of the SERS experiments, the adsorption of chloride anions, or other halide ions like Br‐ or I‐, on silver colloidal nanoparticles was analyzed and discussed, because it produced a sizeable increase of the SERS enhancement for most organic molecules . More recently, the halide effect in the SERS spectroscopy excited a renewed interest, because the single‐molecule SERS experiments were generally accessible only with silver particles “activated” by coadsorption of these anions .…”

“…From the dawning of the SERS experiments, the adsorption of chloride anions, or other halide ions like Br-or I-, on silver colloidal nanoparticles was analyzed and discussed, because it produced a sizeable increase of the SERS enhancement for most organic molecules. [23][24][25][26][27][28][29][30][31] More recently, the halide effect in the SERS spectroscopy excited a renewed interest, because the singlemolecule SERS experiments were generally accessible only with silver particles "activated" by coadsorption of these anions. [32][33][34][35][36][37] This activation was usually attributed to two possible mechanisms: (i) an increase of the local electromagnetic field by aggregation of silver colloidal particles induced by the addition of electrolytes; (ii) the formation of surface complexes involving ligand molecules, halide anions and positively charged active sites of the silver surface.…”

Acetonitrile(6,6′-dimethyl-2,2′-dipyridyl)silver(I) trifluoromethanesulfonate

“…For a general background on silver complexes of 2,2 0 -bipyridine derivatives, see: Swarnabala & Rajasekharan (1989); Sbrana (1990); Xu et al (2001); Effendy et al (2007); Di Nicola et al (2007).…”