Conclusions
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1.
A mass spectral study of (norbornadiene)(acetylacetonato)rhodium derivatives showed that [Rh-norbornadiene]+ ions are more stable than [acacRh]+ ions. The decomposition of the molecular ions of these compounds with cleavage of the metal-ligand bonds is accompanied by a series of hydrogen rearrangements due to the migration of a hydrogen atom from the ligands to the metal atom or another ligand.
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2.
The greatest stability among the fragment ions, in which the bond of the metal atom with both ligands is retained, is found for ions characterized by a 16-electron shell of the rhodium atom and its oxidation state of +3.
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Communication 35, see ref. [1].
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1029–1033, May, 1987.
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Nekrasov, Y.S., Zagorevskii, D.V., Gérbéléu, N.V. et al. Mass spectrometry of transition metal π-complexes Communication 36. (η4-Norbornadiene)(acetylacetonato)rhodium(I) derivatives. Russ Chem Bull 36, 947–951 (1987). https://doi.org/10.1007/BF00956343
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DOI: https://doi.org/10.1007/BF00956343