Description: 987 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 / 987 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) phosphorus compounds (9/02; 9/06) (116) contains at least one (c)-p bond (9/28) (129) trivalent p compound having the structure (c)-p-(c or h)(c or h) (9/50) (132) compound has two or more (c)-p(c or h)(c or h) groups or at least one (c or h)-p-(c)-p-(c or h) group (9/50a6)
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