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Gallium based low-interaction anions

Patent ·
OSTI ID:872879
 [1];  [1]
  1. Santa Fe, NM
+ Show Author Affiliations
The present invention provides: a composition of the formula M.sup.+x (Ga(Y).sub.4.sup.-).sub.x where M is a metal selected from the group consisting of lithium, sodium, potassium, cesium, calcium, strontium, thallium, and silver, x is an integer selected from the group consisting of 1 or 2, each Y is a ligand selected from the group consisting of aryl, alkyl, hydride and halide with the proviso that at least one Y is a ligand selected from the group consisting of aryl, alkyl and halide; a composition of the formula (R).sub.x Q.sup.+ Ga(Y).sub.4.sup.- where Q is selected from the group consisting of carbon, nitrogen, sulfur, phosphorus and oxygen, each R is a ligand selected from the group consisting of alkyl, aryl, and hydrogen, x is an integer selected from the group consisting of 3 and 4 depending upon Q, and each Y is a ligand selected from the group consisting of aryl, alkyl, hydride and halide with the proviso that at least one Y is a ligand selected from the group consisting of aryl, alkyl and halide; an ionic polymerization catalyst composition including an active cationic portion and a gallium based weakly coordinating anion; and bridged anion species of the formula M.sup.+x.sub.y [X(Ga(Y.sub.3).sub.z ].sup.-y.sub.x where M is a metal selected from the group consisting of lithium, sodium, potassium, magnesium, cesium, calcium, strontium, thallium, and silver, x is an integer selected from the group consisting of 1 or 2, X is a bridging group between two gallium atoms, y is an integer selected from the group consisting 1 and 2, z is an integer of at least 2, each Y is a ligand selected from the group consisting of aryl, alkyl, hydride and halide with the proviso that at least one Y is a ligand selected from the group consisting of aryl, alkyl and halide.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM
DOE Contract Number:
W-7405-ENG-36
Assignee:
Regents of University of California (Los Alamos, NM)
Patent Number(s):
US 6030918
OSTI ID:
872879
Country of Publication:
United States
Language:
English

References (3)

Very Large Counteranion Modulation of Cationic Metallocene Polymerization Activity and Stereoregulation by a Sterically Congested (Perfluoroaryl)fluoroaluminate journal March 1997
Synthesis and properties of pentafluorophenylgallium derivatives. The preparation of tris(pentafluorophenyl) gallium and its adducts, and of bis(pentafluorophenyl) gallium bromide, pentafluorophenylgallium dibromide, and tetrabutylammonium tetrakis(pentafluorophenyl)gallate journal December 1992
Trialkylgallium-halogeno-komplexe [R3GaX]− und [(R3Ga)2X]− mit X = F, Cl, Br journal March 1974

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alkyl
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bridged
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