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Diphenyl disulfide is the chemical compound with the formula (C 6 H 5 S) 2. This colorless crystalline material is often abbreviated Ph 2 S 2. It is one of the more commonly encountered organic disulfides in organic synthesis. Minor contamination by thiophenol is responsible for the disagreeable odour associated with this compound.
Diphenyl sulfide is an organosulfur compound with the chemical formula (C 6 H 5) 2 S, often abbreviated as Ph 2 S, where Ph stands for phenyl. It is a colorless liquid with an unpleasant odor. Diphenyl sulfide is an aromatic sulfide. The molecule consists of two phenyl groups attached to a sulfur atom.
Diphenyl disulfide, ... is the S-oxide of a disulfide, and a thiosulfonate, R−S(O) 2 −S ... Compounds like allicin and ajoene are responsible for the odor of garlic.
This odor limits the applications of volatile sulfides. In terms of their physical properties they resemble ethers, but are less volatile, higher melting, and less hydrophilic. These properties follow from the polarizability of the divalent sulfur center, which is greater than that for oxygen in ethers.
They are widely known as the odorant in domestic natural gas, garlic odor, and skunk spray. Not all organic sulfur compounds smell unpleasant at all concentrations: the sulfur-containing monoterpenoid (grapefruit mercaptan) in small concentrations is the characteristic scent of grapefruit, but has a generic thiol odor at larger concentrations.
The S-S bond length is 2.03 Å in diphenyl disulfide, [1] similar to that in elemental sulfur. Two kinds of disulfides are recognized, symmetric and unsymmetric. Symmetrical disulfides are compounds of the formula RSSR. Most disulfides encountered in organo sulfur chemistry are symmetrical disulfides.
The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape, polarity, partial charges, and molecular mass. The olfactory mechanisms responsible for a compound's different detection threshold is not ...
General structure of a disulfide Organic disulfides are chemical compounds with the general structure RSSR'. Wikimedia Commons has media related to Organic disulfides .