| http://www.w3.org/ns/prov#value | - is a ligand selected from the group consisting of aryl, alkyl and halide; a composition of the formula (R)x Q+ Ga(Y)4 - 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 li
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