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New 8-aryl-8´-iodo derivatives of cobalt bis(1,2-dicarbollide)

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Abstract

Reactions of 8,8´-μ-iodo-3-commo-3-cobalta[bis(1,2-dicarba-closo-dodecaborane)] (8,8´-μI-3,3´-Co(1,2-C2B9H10)2) with aryl halides (fluoro-, chloro-, bromo-, iodo-, and o-dichlorobenzenes) were studied. The reaction of 8,8´-μ-I-3,3´-Co(1,2-C2B9H10)2 with these reagents proceeded only in the presence of sterically hindered Lewis bases with the cleavage of the bridging B—I bond and the formation of the corresponding anionic 8-aryl-8´-iodo derivatives of cobalt bis(1,2-dicarbollide). X-ray diffraction studies were carried out for the charge-compensated 8´-iodo-8-(4,1-oxathian-1-ium)icosahydro-1,1´,2,2´-tetracarba-3-commo-cobaltacloso-tricosaborate and the anionic tetramethylpiperidinium 8´-(3,4-dichlorophenyl)-8-iodoicosahydro-1,1´,2,2´-tetracarba-3-commo-cobalta-closo-tricosaborate. The X-ray diffraction data showed that the molecule of the former compound has the gauche conformation, whereas the anionic complex is in the trans conformation.

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Authors and Affiliations

  1. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991, Moscow, Russian Federation

    I. D. Kosenko, I. A. Lobanova, I. V. Ananyev, Z. A. Starikova, J. N. Laskova & V. I. Bregadze

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  1. I. D. Kosenko
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  2. I. A. Lobanova
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  3. I. V. Ananyev
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  4. Z. A. Starikova
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  5. J. N. Laskova
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  6. V. I. Bregadze
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Correspondence to I. D. Kosenko.

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Dedicated to Academician of the Russian Academy of Sciences V. I. Minkin on the occasion of his 80th birthday.

Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 0704—0711, March, 2015.

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Kosenko, I.D., Lobanova, I.A., Ananyev, I.V. et al. New 8-aryl-8´-iodo derivatives of cobalt bis(1,2-dicarbollide). Russ Chem Bull 64, 704–711 (2015). https://doi.org/10.1007/s11172-015-0923-5

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  • DOI: https://doi.org/10.1007/s11172-015-0923-5

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