The hydrolysis of hexaiodoplatinate(IV)

Synthesis of shaped Pt nanoparticles using common anions or small molecules as shape-directing agents: observation of a strong halide or pseudo-halide effect

“…Detailed kinetics study of [PtI 6 ] 2À hydrolysis at pH 6 reveals a complex three-stage reaction mechanism involving hydrolysis and redox reactions generating as many as eight different Pt solution species. 50 Reduction of [Pt(OH) 6 ] 2À or [PtI 6 ] 2À solutions using hydrazine or borohydride Attempts to accelerate Pt nanoparticle formation by using stronger reducing agents, such as hydrazine and borohydride ion, leads to diminished shape selectivity with the following outcomes: (1) hydrazine or borohydride accelerate Pt nanoparticle formation relative to H 2 reduction but without a reduction in Pt average nanoparticle size; (2) reduction of [Pt(OH) 6 ] 2À at increasing concentrations of hydrazine gives higher number fractions of Pt nanotetrahedra, cubo-octahedra, and nanorods (see ESI, Fig. S14 †)…”

Binary halides of platinum: Preparations, thermal decomposition and structural results

“…4. Products of similar stoichiometry as the solid precipitated on hydrolysis of dilute H2Ptl~ solution have already been reported by Corain and Po~ " (24). The fact that samples seldom have the ideal Ptl4 stoichiometry is obviously the reason why the phase change of/~-Ptl4 can only be observed for fresh samples or in the presence of iodine.…”

N,O versus O,O′ co-ordination in β-iminodiketonato complexes: a reinvestigation

“…The IR data for the three species, which were also in reasonable agreement with the 0,O' ligating mode, fit perjectly with the new structural interpretation and, most remarkably, the N,O ligating mode for p-[Ni-(acac*C,N,),] fits with the IR data obtained from 13C labelling. The reaction pattern of [Ni(acac),] with C2N, has to be reformulated as in equation (1).…”