Fragmentation of the (Cyclam‐acetato)iron Azide Cation in the Gas Phase

Detlef Schröder; Helmut Schwarz; Núria Aliaga‐Alcalde; Frank Neese

doi:10.1002/ejic.200600805

Fragmentation of the (Cyclam‐acetato)iron Azide Cation in the Gas Phase

European Journal of Inorganic Chemistry 2007(6): 816-821

Article 2007 English

Abstract

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Mass spectrometry is used to investigate the fragmentation of the ligated azidoiron cation [(cyclam‐acetato)Fe(N 3 )] + , which is accessible in the gas phase by electrospray ionization of a solution of its hexafluorophosphate salt in methanol/water. Upon collisional activation, mass‐selected [(cyclam‐acetato)Fe(N 3 )] + undergoes competing loss of dinitrogen or HN 3 as the prevailing fragmentations. The former dissociation pathway is investigated in detail in order to determine whether or not the free, high‐valent iron nitride [(cyclam‐acetato)FeN] + is formed. The evidence obtained indeed supports the formation of the iron nitride species as an intermediate, although the long‐lived ion sampled after mass selection may also have undergone further rearrangements.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

Fragmentation of the (Cyclam‐acetato)iron Azide Cation in the Gas Phase

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