Metal-phosphorus-nitrogen polymers, metal-phosphorus compounds a

Details Metal-phosphorus-nitrogen polymers, metal-phosphorus compounds a Metal-phosphorus-nitrogen polymers, metal-phosphorus compounds a

1991-12-17

1994-02-15

Lewis, Michael

Chemistry of inorganic compounds

Phosphorus or compound thereof

Nitrogen containing

423304, 423305, 423351, C01B 2500, C01B 2100

Patent

active

052864693

ABSTRACT:
The invention provides metal-phosphorus-nitrogen polymer compounds and methods for their preparation at low temperatures using readily available starting materials. One group of compounds, metal-phosphazene polymers, are comprised of repeating units of [PN].sub.3 rings linked to form polymers through P--X--M--X--P bonds. The linking atoms X are either NH.sub.2 or O, and M is a metal cation. Another group of the compounds have the generic formula M.sub.a (P.sub.2 O.sub.5).sub.b (NH.sub.3).sub.c O.sub.d.eH.sub.2 O. If the metal-phosphorus-nitrogen polymers are heated to a sufficiently high temperature to reduce the nitrogen/phosphorus ratio, additional novel solid metal phosphorus compounds of the invention are formed, many of which have a foamed, porous structure. The properties of the compounds of the invention can be varied by choice of metal and reaction conditions to create materials having useful conductive, magnetic, optical, catalytic, or ion-exchange properties.

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