6533b7dcfe1ef96bd1273479
RESEARCH PRODUCT
Chemistry of transition-metal clusters with mixed Sb/S ligands: evidence for a terminal Sb=S double bond in Cp*3Rh3Sb2S5 (Cp* = C5Me5).
Andreas LangeMarek M. KubickiJoachim WachterManfred Zabelsubject
chemistry.chemical_classificationDouble bondLigandChemistryInorganic chemistrychemistry.chemical_elementGeneral MedicineMetathesisSulfurInorganic ChemistryCrystallographyTransition metalDensity functional theoryPhysical and Theoretical Chemistrydescription
The reaction of [Cp 2 *Rh 2 Cl 4 ] (Cp* = C 5 Me 5 ) with a slight excess of K 3 SbS 3 in boiling THF gave the neutral clusters [Cp* 4 Rh 4 S 5 ] (1), [Cp* 3 Rh 3 Sb 2 S 5 ] (2), and after salt metathesis [Cp* 3 Rh 3 SbS n ]PF 6 (3; n = 5 and 6). The structures of 1-3 are heterocubane clusters with Cp*Rh, S, and Sb vertices but with sulfur inserted into one (1 and 2) or two (3) edges. X-ray diffraction analysis of 2 additionally reveals a very short Sb-S distance of 2.297(1) A within the novel μ 3 -Sb 2 S 4 ligand. Density functional theory calculation of the model compounds [SSbS] 3 - , [HSSbS] 2 - , and [HSSbH 2 S] 0 provided strong evidence for the existence of a stable terminal Sb=S double bond in 2.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-10-11 | Inorganic chemistry |