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Gas phase ligation of Cr+ and Fe+ with 4, 9-diazapyrene

The ligation of Cr+ and Fe+ with 4, 9-diazapyrene (DAP) within a Fourier-transform mass spectrometer (FTMS) was studied and compared with previous results for the ligands pyrene (Py) and 9-azaphenanthrene (Ap). The results confirm that Fe+, which reacts more slowly but in the same way as Cr+ to bind two Py ligands, behaves quite differently with the nitrogen heterocycles DAP and Ap: it reacts rapidly and it binds three and four of them, respectively.

transform mass-spectrometry ; metal-ion chemistry ; organometallic chemistry

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