A formal carbon-sulfur triple bond: HCSOH.
Peter R. Schreiner, Hans Peter Reisenauer, Jaroslaw Romanski, and Grzegorz Mloston
Angew. Chem. Int. Ed. 2009, 48, 8133–8136. Download; Highlight: Neil Withers Nature Chem. 2009. Link; Robert Berger Nachr. Chem. 2010, 58, 7. Blog
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Extremely rare: a CS triple bond can be assigned to HCSOH, a new molecule prepared through a photochemical [1,3]H-shift of sulfine H2C=S=O. But does this formal description agree with analyses on the basis of IR vibrations, bond lengths, bond orders, molecular orbitals, and compliance constants? Such types of molecules challenge and refine our current understanding of chemical bonding. |
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