Cycloaddition of alkynes to diimino Mo₃S₄ cubane-type clusters: a combined experimental and theoretical approach

Abstract

Newly synthesised molibdenum diimino clusters interact with alkynes leading to dithiolene species.

Hydrolysis of Element (White) Phosphorus under the Action of Heterometallic Cubane-Type Cluster {Mo3PdS4}

“…Trinuclear precursors [Mo 3 S 4 Cl 3 (dbbpy) 3 ]X (X = Cl − , PF 6 − ; dbbpy-4,4 -di-tert-Bu-2,2 -bipyridine) [39] and [Mo 3 S 4 (acac) 3 (py) 3 ]PF 6 (acac-acetylacetonate, py-pyridine) [40] used to synthesize complexes 1, 2 and 3 as well as complex [Mo 3 {Pd(tu)}S 4 Cl 3 (dbbpy) 3 ]Cl (2) (tu-thiourea) [36], were prepared according to the published procedures. Commercially…”

Interaction of Hydrophobic Tungsten Cluster Complexes with a Phospholipid Bilayer

“…The cluster complex [W 3 S 4 Cl 3 (dbbpy) 3 ]Cl (dbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine) (Figure 1) was prepared according to the published procedure. 32 Instrumentation. Elemental analysis for C, H, N, S was carried out on a Euro EA 3000 analyzer.…”

Hemilability of phosphine-thioether ligands coordinated to trinuclear Mo3S4 cluster and its effect on hydrogenation catalysis

“…In previous works we have shown that the high lability of the thiourea ligands in easily precursor can be used to prepare tri-substituted Mo 3 S 4 complexes with 1,10-phenanthroline, 2,2'-bipyridine and its 4,4'-alkyl-substituted derivatives and N,N'-dimethylethylenediamine ligands. [54,[56][57] In this work we used this precursor for ligand-exchange reactions with phosphino-thioethers PS1, PS2 and PS3 (Figure 1 species. [57,60] Each molybdenum atom presents a distorted octahedral coordination environment, surrounded by three sulfur ligands, one chlorine, and one phosphorous and one sulfur atoms of the phosphine-thioether ligand, where all the phosphorus atoms are located trans to the capping sulfur ( 3 -S).…”

“…[54,[56][57] In this work we used this precursor for ligand-exchange reactions with phosphino-thioethers PS1, PS2 and PS3 (Figure 1 species. [57,60] Each molybdenum atom presents a distorted octahedral coordination environment, surrounded by three sulfur ligands, one chlorine, and one phosphorous and one sulfur atoms of the phosphine-thioether ligand, where all the phosphorus atoms are located trans to the capping sulfur ( 3 -S). Such preferential spatial disposition of the bifunctional ligand when coordinated to the trinuclear cluster unit is not unprecedented, and also observed in M 3 S 4 (M = Mo, W) clusters bearing aminophosphines containing P and N donor atoms.…”

“…[38][39][40][41][42] Our current interest in the field of catalysis is focused on trinuclear chalcogenide molybdenum and tungsten clusters. [43][44][45] Within the last decade, the groups in Novosibirsk and Castellon have developed synthetic approaches for the functionalization of trinuclear M 3 S 4 (M = Mo, W) clusters with homobidentate chelating ligands such as S,S'-donor dithiophosphates, [46][47][48] P,P'-donor diphosphines, [49][50][51][52] N,N'-donor diamines [53][54][55] or diimines [54,[56][57][58][59] . The Mo 3 S 4 complexes, functionalized in this way, are excellent chemoselective catalysts for reduction of nitroarenes with different reducing agents.…”