Chemistry of the polynuclear metal halides. XII. Preparation of molybdenum and tungsten M6X84+ clusters by reduction of higher halides in molten sodium halide--aluminum halide mixtures

Abstract

wave3 and high-voltage dc discharge4 have been reported as have alternate electrode materials such as copper.5 Thus cedures used.

Fiber Optical Micro-Detectors for Oxygen Sensing in Power Plants

“…These results were expected from previous reports [7]. We will continue to use this technique on Mo 6 Cl 12 cluster cycled up to 300 °C.…”

“…The absorption, emission, and x-ray powder diffraction results of the new material are similar to that of our previous preparation. To satisfy the material needs of the project additional Mo 6 Cl 12 will be prepared via a method described by McCarley and co-workers [7]. The reason for using this new method is two-fold: 1) our source of molybdenum chloride is no longer available and 2) we would like to compare the spectroscopy of prepared via different techniques to determine the optimum synthesis technique.…”

Phosphorescent Nanocluster Light‐Emitting Diodes

“…Nanocluster Synthesis : Synthesis of core cluster involved the reduction of commercially available MoCl 5 , following previously outlined procedures [ 32 ] or directly purchased as molybdenum(II) chloride. (H 3 O) + nanocluster synthesis: MoCl 2 was dissolved in concentrated 6 M HCl with heating.…”

Octahedral Hexatungsten Halide Clusters

“…Yellow, crystalline (H 3 O) 2 [W 6 (μ 3 -Cl) 8 Cl 6 ] ? 7H 2 O is insoluble in water, with which it slowly reacts, but is soluble in methanol.…”

“…We report here an extension of this approach to the convenient preparation of (H 3 O) 2 [W 6 (μ 3 -Cl) 8 Cl 6 ] ? 6H 2 O and thus W 6 Cl 12 at significantly lower temperatures and greater yield than other published procedures.…”