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Activation of a bis(phenoxy-amine) precatalyst for olefin polymerisation: first evidence for an outer sphere ion pair with the methylborate counterion
Experimental section. All manipulations of air-sensitive materials were performed with rigorous exclusion of oxygen and moisture in flamed Schlenk-type glassware on a dual-manifold Schlenk line, interfaced to a high-vacuum line (10 -5 torr), or in a nitrogen-filled Vac-Atmosphere glove-box with a high-capacity recirculator (<1 ppm O 2 and H 2 O). All solvents were freeze-pump-thaw degassed on the high-vacuum line, dried over Na/K alloy, and vacuum-transferred to a dry storage flask containingdoi:10.1039/b908805a pmid:19826712 fatcat:racqsb46gjbtvgu6qzsjvj7ajm