Gallium based low-interaction anions
- Santa Fe, NM
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 (United States)
- 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
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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Related Subjects
based
low-interaction
anions
provides
composition
formula
metal
selected
consisting
lithium
sodium
potassium
cesium
calcium
strontium
thallium
silver
integer
ligand
aryl
alkyl
hydride
halide
proviso
carbon
nitrogen
sulfur
phosphorus
oxygen
hydrogen
depending
ionic
polymerization
catalyst
including
active
cationic
portion
weakly
coordinating
anion
bridged
species
z
-y
magnesium
bridging
atoms
integer selected
catalyst composition
metal selected
ligand selected
polymerization catalyst
composition including
anion species
weakly coordinating
coordinating anion
/502/526/999/