Further Examples of Complexes Related by Electron-Transfer Reactions: Complexes Derived from Bis (trifluoromethyl)-1,2-dithietene

Thermal and magnetic study of exchange in the quasi-1-D molecular compound, TTF⋅PtS4C4(CF3)4

“…A broad anomaly be- The considerable width at half maximum of -1800 Oe, is responsible for the large error limits on the g-factors. This 10% g-factor anistropy is midway between the 20% anisotropy observed on the anion complex in a frozen glass [11] and the <0.5% anisotropy of the TTF+ ion [4] indicating coupling between the different spin carriers. It has also been suggested [12] that anisotropic ionic g-factors can introduce anisotropy in exchange of order /',g/g or (/',g/g)2.…”

Oxidative addition of asparagusic acid based disulfides to Pt0

“…We have studied this step in molecular coordination chemistry by reactions of the platinum(0) complex [Pt(PPh 3 ) 4 ] with asparagusic acid (1), its synthetic precursor cyclo-S 2 C 3 H 5 -4,4-(COOEt) 2 (2) and the azobenzene-functionalised compounds 3-5 (Scheme 1). The reaction of the cyclic fourmembered disulfide bis(trifluoromethyl)-1,2-dithiethene with [Pt(PPh 3 ) 3 ], which was described by Davison et al in 1964, appears to be the first example of an oxidative addition of a disulfide to zero-valent platinum [12]. The first report concerning an analogous reaction of a 1,2-dithiolane derivative was published in 1994 by Weigand et al [13].…”

New ferrocene based dithiolate ligands

“…The first example of the oxidative addition of a disulfide linkage to Pt(0) was reported in 1964 by Davison et al [19] and this is now a well developed strategy for the complexation of thiolate ligands onto electron rich platinum metal centers [7,20e22]. Recently, Weigand and co-workers published the reaction of a 1,2-dithiolane derivative with a Pt(0) source leading to the cis mononuclear complex of platinum [(Ph 3 P) 2 Pt(eSeCH 2 eCHPheCH 2 eSe)] [21] and we successfully targeted reactions of the disulfide complexes 1 and 2 with Pt(0).…”