Conclusions
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1.
The bromination of (C5H5)Zr(C5H7O2)2Cl(Br) with N-bromosuccinimide goes only in the acetylacetonate rings, with a retention of all of the ligands in the molecule.
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2.
The bromination of (C5H5Zr(C5H7O2)2Cl(Br) with bromine proceeds in the acetylacetonate rings, with cleavage of the Cp ligand and replacement of the halogen.
Literature cited
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E. M. Brainitia and M. Kh. Minacheva, Izv. Akad. Nauk SSSR, Ser. Khim.,1975, 1596.
E. M. Brainina, M. Kh. Minacheva, Z. S. Klemenkova, and B. V. Lokshin, Izv. Akad. Nauk SSSR, Ser. Khim.,1976, 399.
É. M. Brainina and L. I. Strunkina, Izv. Akad. Nauk SSSR, Ser. Khim.,1977, 2081.
M. Kh. Minacheva, E. M. Brainina, and L. A. Fedorov, Izv. Akad. Nauk SSSR, Ser. Khim.,1969, 1104.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2599–2601, November, 1977.
The authors express their sincere gratitude to B. V. Lokshin and V. I. Dostovalova for taking part in discussing the IR, UV, and NMR spectra.
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Brainina, É.M., Strunkina, L.I. Bromination of cyclopentadienylbis-(acetylacetonate) zirconium halides. Russ Chem Bull 26, 2406–2408 (1977). https://doi.org/10.1007/BF00958741
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DOI: https://doi.org/10.1007/BF00958741