AI Article Synopsis
- - The study introduces two new types of phosphorus-sulfur compounds called 1,2-thiaphosphetenes and phosphirene sulfides, which are the first of their kind to be structurally characterized.
- - The formation of these compounds occurs through a reaction between a phosphinidene sulfide and an alkyne, with different outcomes based on whether the alkyne is internal or terminal.
- - Computational analysis shows that 4-membered ring structures are generally more stable than 3-membered rings across various alkyne derivatives, and the properties of "free" phosphinidene sulfides are also examined through this computational framework.
Article Abstract
The phosphorus-sulfur heterocycles 1,2-thiaphosphetenes and phosphirene sulfides have been prepared, and represent the first structurally characterized derivatives for either class of compound. These strained P-S ring systems are formed by the reaction of a phosphinidene sulfide and alkyne. Using an internal alkyne, only the 3-membered P , phosphirene sulfide was produced, whereas a terminal alkyne yielded a mixture of phosphirene sulfide and 1,2-thiaphosphetene (P ). Detailed computational analysis revealed that for numerous derivatives of alkynes, the corresponding 4-membered rings are always more stable than the 3-membered isomers. The electronic nature of "free" phosphinidene sulfides (R-P=S) is discussed based on computational results.
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| http://dx.doi.org/10.1002/chem.201705198 | DOI Listing |
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