Metal complexes of substituted dithiophosphinic acids. I. Complexes of trivalent chromium

Abstract

the MCD spectrum of Cr(dtp)3 at 20.38 kK which he associates with the 2Ai level. (No hint of a band at this energy is seen in the absorption spectrum.) Within the limits of the calculation we have made it does not seem possible either to move the 2Ai level near 20.38 kK (without destroying the more certain parts of the fit, i.e., the 4T2g and 4Tig manifolds) or to move the 2Aig and 4Tig levels closer than ca. 5 kK to each other. Introduction of a large and (apparently) unlikely second-

Structure of tris(diethyldithiophosphinato)chromium(III)

“…Wasson, Wolterman & Stoklasa, 1973) P(3) and by magnetic measurements (e.g. Cavell, Byers & c(1) C(2) Day, 1971;Hertel & Kuchen, 1971). According to c(3) these measurements the CrS6 octahedra are not affected c(4) by changes in the substituents on the P atom.…”

Synthesis and reactivity of new methylallylpalladium(II) complexes with bidentate 2-(methylthio-N-benzylidene)anilines

“…The 2-(methylthio)-N-substituted-benzylidene) anilines were synthesised according to standard procedures by condensing equimolar amounts of 2-(methylthio)aniline and the respective substituted benzaldehyde, under continuous stirring for 2 h, in the presence of magnesium sulfate [10]. The compounds [(g 3 -Me-allyl)Pd(l-X)] 2 (X ¼ Cl, I) [11,12] and [(EtO) 2 PS 2 K] [13] were prepared following literature methods.…”

LOCAL STRUCTURE AND METAL–METAL INTERACTION IN SOME Cr(III)-DITHIOPHOSPHONATE COMPOUNDS

“…5 The position of the third band and other spectral parameters (Table 2) were calculated by the method proposed by Lever, 6 using a value of 919 cm −1 for the inter-electronic repulsion constant, B. 7 In these complexes, both the inter-electronic repulsion and the nephelauxetic parameters have very low values (β = 0.41). Although low, this value is usual for chromium complexes with sulfur as donor atom, 8 indicating high covalency of the chromium-sulfur bonds.…”