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) (187) phosphorus directly bonded to n, i.e., p(n) (9/22; 9/22a) (192) contains the structure (n)-p-(x-*acyl), (n)-p-(x-*z) or (n)-p-(x-*cyano) where z is an atom other than c or h, x is a chalcogen atom, and * indicates a direct bond to the adjacent x atom (9/24a9; 9/24a9+m; 9/24a9+q; 9/24a9+u; 9/24a9+w)
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