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Ammonium tetrathiomolybdate
About: Ammonium tetrathiomolybdate is a research topic. Over the lifetime, 187 publications have been published within this topic receiving 4249 citations.
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TL;DR: In this article, ammonium tetrathiomolybdate on alkyl halides, thiocyanates and disulfides undergo Michael addition to alpha,beta-unsaturated esters, nitriles :and ketones in water under neutral conditions.
Abstract: Thiolates generated in situ by the action of ammonium tetrathiomolybdate on alkyl halides, thiocyanates and disulfides undergo Michael addition to alpha,beta-unsaturated esters, nitriles :and ketones in water under neutral conditions.
1 citations
Patent•
15 Jun 2016
TL;DR: In this paper, a preparation method for high-purity ammonium tetrathiomolybdate (ATTM) is described, in which a compound of molybdenum is enabled to react with an ammonium sulfide solution, and an ammonia gas generated in a reaction process is discharged from a reaction solution through a way of vacuumizing during the reaction process or blowing an inert gas in the reaction solution, so that reaction equilibrium is facilitated to move towards a product.
Abstract: The invention discloses a preparation method of ATTM (Ammonium Tetrathiomolybdate), and belongs to the field of preparation of high-purity chemicals. The preparation method is characterized in that a compound of molybdenum is enabled to react with an ammonium sulfide solution, and an ammonia gas generated in a reaction process is discharged from a reaction solution through a way of vacuumizing during the reaction process or blowing an inert gas in the reaction solution, so that reaction equilibrium is facilitated to move towards a product-the ATTM; an appropriate amount of ammonium salt is added in the reaction solution, so that high-purity ATTM is prepared in a high yield by promoting the separation of the product-the ATTM. The preparation method disclosed by the invention has the advantages that the waste emission is less, irritant ammonium hydroxide and a hypertoxic and fetid hydrogen sulfide gas are not needed to be used, the technological conditions are simple and environmenta friendly, the yield is up to more than 98 percent, and the like; according to the preparation method, gram-scale and ton-scale high-purity ATTM products can be efficiently produced, and industrial large-scale production is easily realized.
1 citations
TL;DR: In this article, the interaction of ammonium tetrathiomolybdate with the barium salts of the dithiocarbamates (dtc) of glycine, DL-alanine and DL-2-aminobutyric acid yielded Ba[Mo2S4(dtc)]2.
1 citations
Patent•
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21 Dec 1990
TL;DR: In this article, ammonium thiomolybdate and copper halide are mixed and brought into a reaction in an org. solvent to form a precursor, and the resulting solid precursor is reduced under heating in an atmosphere of gaseous hydrogen to produce copper molybdenum sulfide.
Abstract: PURPOSE:To obtain an electrode of a cell using mass-producible copper molybdenum sulfide at a low cost by reducing a solid precursor obtd. from ammonium thiomolybdate and copper halide under heating and using produced copper molybdenum sulfide as a base. CONSTITUTION:Ammonium thiomolybdate and copper halide are mixed and brought into a reaction in an org. solvent to form a precursor and the org. solvent as a medium is removed by evaporation. The resulting solid precursor is reduced under heating in an atmosphere of gaseous hydrogen to produce copper molybdenum sulfide and an electrode of a cell based on the sulfide is obtd. The copper molybdenum sulfide means copper molybdenum sulfide having so-called chevrel phase and is a compd. represented by the formula (where x is 1.5-4 and y is 0-0.4). Ammonium tetrathiomolybdate is preferably used as the ammonium thiomolybdate because oxygen is prevented from entering the product.
1 citations