Cp2ZrCl2 and Cp2HfCl2 were purchased from Strem Chemicals, Inc., Newburyport, Maine. Anhydrous Et2O from Fisher Chemicals, Inc., Fair Lawn, NJ was dried over Na/benzophenone; N,N-dimethylformamide (DMF) from Fisher Chemicals, Inc. was dried over molecular sieves. 2.2. Synthesis of [PPh4]...
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Brunelle, Jim
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