Functional groups sulfur-oxygen double bond

The constant x depends on the class of compound (e.g., aromatic vs. aliphatic), ry is the number of specific atoms (e.g., C or Cl), y is a constant specific to that atom and how it is bonded, rij is the number of certain bonds or structural types (e.g., double or triple bonds or branching), and z is a constant specific to these bonds or structural elements. Lyman et al. (1982) gives a full account of this approach and recommend it as the preferred method when no partition coefficient data are available. However, this method is dated and does not include functional groups containing oxygen, nitrogen, and sulfur atoms. 

Typical functional groups that can interact with the sorbent are hydroxyl, amino, carbonyl, aromatics, double bonds, and groups containing heteroatoms such as oxygen, nitrogen, sulfur, and phosphor. 

In a-functionalized olefins, heteroatoms, such as halogen, oxygen, nitrogen, or sulfur, are connected to the C=C double bond. With unmodified rhodium catalysts, the heteroatom directs the incorporation of the formyl group in a-position. This can be explained by the better stabilization of the branched alkyl-rhodium... 

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