Trinuclear Mo₃S₇ Clusters Coordinated to Dithiolate or Diselenolate Ligands and Their Use in the Preparation of Magnetic Single Component Molecular Conductors

Abstract

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Photogeneration of Hydrogen from Water by Hybrid Molybdenum Sulfide Clusters Immobilized on Titania

“…The irreversible reduction of clusters based on Mo 3 S 7 units has been reported previously and ascribed to the reduction of disulfide ligands to generate incomplete cuboidal Mo 3 S 4 cores. [22] Interestingly, these generated cubane-type Mo 3 S 4 clusters are good catalysts for hydrogenation reactions [23] and, more importantly, for the HER. [9] A question that arises is whether the reduction of (nBu 4 N)(1·Br) is caused by a change in the oxidation state of the Mo 3 S 7 core or also affects the ligand.…”

Synthesis and optical power limiting properties of heteroleptic Mo3S7 clusters

“…These bands were identified on the basis of the stretching frequencies reported for similar cluster complexes. [28][29][30][31] In all cases, a weak band corresponding to the Seq -Sax stretching vibration was observed at ca. respectively.…”

“…[14][15][16] Apart from helping in the stabilization of the dithiolate ligand, their use is very convenient since Mo3S7 cluster units are not stable under the basic conditions that are usually required for the coordination of dithiolene ligands.…”

“…8,[14][15][16] In the case of the dithiolene Mo3S7 derivatives, upon oxidation these cluster compounds have been used to prepare single molecule magnetic molecular conductors.…”

First heteroleptic Mo3S7 clusters containing non-innocent phenanthroline ligands

“…A large variety of homoleptic molybdenum and tungsten M 3 (μ 3 Q)(μ Q 2 ) 3 cluster chalcogenides (Q = S, Se) have been developed and an appropriate choice of the ligands affords molecular cluster systems which present non linear optics properties, i.e., bromide, maleoni trilodithiolate, or oxalate [1], as well as molecular mag netic conductors in the case of Mo 3 S 7 dithiolene cluster complexes [2][3][4]. The high diversity of homoleptic M 3 Q 7 clusters contrasts with the scarce number of het eroleptic compounds in which the halide ligands in [Mo 3 S 7 X 6 ] 2-(X = Cl, Br) are partially substituted by aniline [5], dimethyl sulfoxide [6], or acetonitrile [7].…”