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It is a weak acid, with a pK a of ~10.4, but is about a hundred thousand times more acidic than methanol. The colorless salt can be obtained in this way: CH 3 SH + CH 3 ONa → CH 3 SNa + CH 3 OH. The resulting thiolate anion is a strong nucleophile. It can be oxidized to dimethyl disulfide: 2CH 3 SH + [O] → CH 3 SSCH 3 + H 2 O
Dimethyl sulfide has a characteristic odor commonly described as cabbage-like.It becomes highly disagreeable at even quite low concentrations. Some reports claim that DMS has a low olfactory threshold that varies from 0.02 to 0.1 ppm [clarification needed] between different persons, but it has been suggested that the odor attributed to dimethyl sulfide may in fact be due to disulfides ...
Sulfides, formerly known as thioethers, are characterized by C−S−C bonds [3] [4] Relative to C−C bonds, C−S bonds are both longer, because sulfur atoms are larger than carbon atoms, and about 10% weaker. Representative bond lengths in sulfur compounds are 183 pm for the S−C single bond in methanethiol and 173 pm in thiophene.
Methanomethylovorans hollandica is a species of methylotrophic methanogen able to grow on dimethyl sulfide and methanethiol. It is the type species of its genus. It is obligately anaerobic. [1] It was the first strictly anaerobic archeaon isolated from freshwater sediments in which dimethyl sulfide is the sole source of carbon. It is not a ...
One of its breakdown products is methanethiol (CH 3 SH), which is assimilated by bacteria into protein sulfur. Another volatile breakdown product is dimethyl sulfide (CH 3 SCH 3 ; DMS). There is evidence that DMS in seawater can be produced by cleavage of dissolved (extracellular) DMSP [ 7 ] [ 8 ] by the enzyme DMSP-lyase , although many non ...
With respect to donor properties, dimethyl sulfide is a soft ligand with donor properties weaker than phosphine ligands. [3] Such complexes are generally prepared by treating the metal halide with the thioether. Chloro(dimethyl sulfide)gold(I) can however be prepared by redox reaction of elemental gold and DMSO in the presence of hydrochloric ...
Hydrogen peroxide is a typical oxidant—for example, with dimethyl sulfide (S(CH 3) 2): [9] S(CH 3) 2 + H 2 O 2 → OS(CH 3) 2 + H 2 O OS(CH 3) 2 + H 2 O 2 → O 2 S(CH 3) 2 + H 2 O. In analogy to their easy alkylation, sulfides bind to metals to form thioether complexes. Consequently, Lewis acids do not decompose thioethers as they do ethers ...
The 3 substrates of this enzyme are methanethiol, O 2, and H 2 O, whereas its 3 products are formaldehyde, hydrogen sulfide, and H 2 O 2. [1] This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donors with oxygen as acceptor. The systematic name of this enzyme class is methanethiol:oxygen ...