US PATENT SUBCLASS 987 / 137
.~.~ Trivalent P having the structure (C)-P-(XH or X-Salt) (XH or X-Salt or H) or pentavalent P having the structure (C)-P(=X) (XH or X-Salt) (XH or X-Salt or H) where X is chalcogen (9/48)

Current as of: June, 1999
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987 /   HD   ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM

30  DF  PHOSPHORUS COMPOUNDS (9/02; 9/06) {15}
116  DF  .~ Contains at least one (C)-P bond (9/28) {19}
137.~.~ Trivalent P having the structure (C)-P-(XH or X-Salt) (XH or X-Salt or H) or pentavalent P having the structure (C)-P(=X) (XH or X-Salt) (XH or X-Salt or H) where X is chalcogen (9/48) {2}
138  DF  .~.~.~> Contains ring solely composed of carbon atoms or contains an ethylenic group (9/48A2; 9/48A3; 9/48A4)
139  DF  .~.~.~> Contains two or more P atoms or contains an atom other than C, H, or the required chalcogen atom (9/48A1; 9/48A6)

DEFINITION

Classification: 987/137

Trivalent P having the structure (C)-P-(XH or X-Salt) (XH or X-Salt or H) or pentavalent P having the structure (C)-P(=X)(XH or X-Salt)(XH or X-Salt or H) where X is chalcogen (9/48):

(under subclass 116) Subject matter wherein the compound contains a trivalent or pentavalent P atom bonded in the following manner: (a) (C)-P(=X)(XH or X-Salt)(C); (b) (C)-P(=X)(XH or X-Salt)(H); (c) (C)-P(=X)(XH or X-Salt)(X-Salt); (d) (C)-P(XH or X-Salt)(C); (e) (C)-P(XH or X-Salt)(H); (f) (C)-P(XH or X-Salt)(X-Salt)