Vierkernige Molybdän-Schwefel-Cluster mit Dithiophosphinatoliganden / Tetranuclear Molybdenum-Sulfur-Clusters with Dithiophosphinato Ligands
Open Access
- 1 November 1987
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 42 (11) , 1373-1378
- https://doi.org/10.1515/znb-1987-1102
Abstract
Tetranuclear clusters Mo4S4(R2PS2)6 (4) (a: R = Et, b: R = Pr) with cubane-like cores are conveniently obtained by reacting equimolar quantities of Mo3S4(Et2PS2)4, Mo(CO)6 and R2P(S)-S-S-P(S)R2. 31P NMR and MS data of 4 are reported and the magnetic properties are discussed. 4a crystallizes triclinically with a = 1159.41(6), b = 1162.77(7), c = 2228.54(14) pm, α = 102.660(3), β = 98.382(4), γ = 98.546(5)°. P1̅, Z = 2. The molecule consists of a distorted Mo4S4 cubane. Each Mo atom is coordinated by six S atoms: three within the cubane, two from a bidentate and one from a chelating dithiophosphinato ligand. Two Mo -Mo distances are short- ened by the chelate to an av. of 278.6 pm, while the av. of the remaining four Mo -Mo distances is 287.9 pm.Keywords
This publication has 0 references indexed in Scilit: