Super-efficient platinum catalyst derived from a semiconducting, DMF solvate: Structural, spectroscopic, electrochemical, and catalytic characterization

Abstract

The reaction of [(NH3)4Pt](NO3) 2 with LiTCNQF4 (TCNQF4=2,3,5,6-tetrafluoro-7, 7,8,8-tetracyanoquinodimethane) in dimethylformamide gives the product [(NH 3)4Pt](TCNQF4)2·(DMF) 4 (1). Subtle changes in the solvent conditions, however, result in a different product, [(NH3)4Pt](TCNQF4) 2·Et2O·(CH3OH)4/3 (2). Both 1 and 2 have been characterized by X-ray crystallography, vibrational (FTIR, Raman) and UV/vis spectroscopy, thermogravimetric analysis and electrochemistry. Single crystals of 1 indicate the presence of 3D networks supported by hydrogen bonding, whereas the structural analysis of 2 indicates a 2D layered network, which consists of alternating TCNQF4- and [(NH3)4Pt]2+ layers. The cond..