Esca, mössbauer and infrared spectroscopic investigations of a series of tin complexes

119mSn Mössbauer studies on tin compounds

“…The empirical procedure by Jolly, Perry and Avanzino [79][80][81] 'incomplete orbital electronegativity equalization' is employed in the calculations. The obtained values of QSn agree, in principle, with data extracted from Dirac-Slater selfconsistent field (SCF) and molecular orbital (MO) [82], as well as MNDO (modified neglect of diatomic overlap) [83] calculations, at least as far as the obtained trends are concerned. By this procedure, individual 8/Qsn correlations have been established for a large selection of classes of congeneric compounds, as outlined in the following:…”

Flotation performances and adsorption mechanism of α-hydroxyoctyl phosphinic acid to cassiterite

“…The Sn3d 5/2 band appeared at around 487.6 eV in the XPS spectra of Sn-HPA reaction product, which was very close to the values of Sn((C 6 H 5 ) 2 PCH 2 CH 2 P(C 6 H 5 ) 2 )Cl 4 complexes [25,26]. Therefore, HPA react with Sn ions by formation of Sn-P bond.…”

Boosting the catalytic performance of graphene-supported Pt nanoparticlesviadecorating with –SnBun: an efficient approach for aqueous hydrogenation of biomass-derived compounds

“…The Sn 3d 5/2 signal for Bu 3 SnH shows a binding energy (BE) of 485.3 eV, which agrees with reported values of similar Sn( iv ) alkyl/aryl complexes. 34 On the other hand, the Sn 3d 5/2 signal of Pt@rGO/Sn 0.8 exhibits a higher BE value (485.8 eV), which means that Sn is little more oxidized and indicates that tin-butyl fragments are coordinated to the platinum surface through the Sn atoms (Fig. 2a).…”