Molybdenum complexes containing substituted cyclopenta[l]phenanthrenyl ligand

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The synthesis of new cyclopenta[l]phenanthrenyl complexes [(eta(5)-C17H10Me)(eta(3)-C3H5)Mo(CO)(2)] and [(eta(5)-C17H9(COOMe)N(CH2)(4))(eta(3)-C3H5)Mo(CO)(2)] is described. Although these compounds are structural analogues their reactivity is different. Protonation of [(eta(5)-C17H10Me)(eta(3)-C3H5)Mo(CO)(2)] gives a stable ionic compound [(eta(5)-C17H10Me)Mo(CO)(2)(NCMe)(2)][BF4] while its analogue containing both tertiary amino and carboxylic ester groups [(eta(5)-C17H9(COOMe)N(CH2)(4))(eta(3)-C3H5)Mo(CO)(2)] decomposes under the same conditions. [(eta(5)-C17H10Me)Mo(CO)(2)(NCMe)(2)][BF4] reacts with cyclopentadiene to give a stable eta(4)-complex [(eta(4)-C5H6)(eta(5)-C17H10Me)Mo(CO)(2)][BF4] that was successfully oxidized to the Mo(IV) dicationic compound [(eta(5)-C5H5)(eta(5)-C17H10Me)Mo(CO)(2)][Br][BF4]. (C) 2009 Elsevier B.V. All rights reserved.
Original languageUnknown
Pages (from-to)680-686
JournalJournal Of Organometallic Chemistry
Issue number5
Publication statusPublished - 1 Jan 2010

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