| http://www.w3.org/ns/prov#value | - Preferred ???Q??? linkers include, but are not limited to linkers such as 1,4-bis(4-terphen-4???-yl)butadiyne or a tetrakis(arylethyne), or linkers comprised of 1,12-carboranyl (C2B10H12), 1,10-carboranyl (C2B8H10), [n]staffane, 1,4-cubanediyl, 1,4-bicyclo[2.2.2]octanediyl, phenylethynyl, or p-phenylene units.
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