Conclusions
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1.
On reaction of organometallic radicals M (C5H5)(CO)X (Fe, Mo, W) with ortho-quinones, the free radicals of the phenoxyl type formed initially as a result of cleavage of the CO groups are converted to metal-centered free radicals.
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2.
For molybdenum and tungsten, we found two types of complexes containing one and two ortho-quinone liganda.
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3.
The state of the Mo and W atoms is characterized by 4d1 and 5d1 electronic configurations with localization of the unpaired electron in the dxy orbital.
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4.
In order to describe the state of the Fe atom, we assume the configuration 3d7 with coordination by the unreduced form of the ortho-quinone.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1509–1516, July, 1982.
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Sarbasov, K., Solodovnikov, S.P., Tumanskii, B.L. et al. EPR spectra of free radicals and complexes formed on photolysis of some dimers of carbonylmetallocenes in the presence of ortho-quinones. Russ Chem Bull 31, 1345–1351 (1982). https://doi.org/10.1007/BF00954151
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DOI: https://doi.org/10.1007/BF00954151