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 SM ISO690:2012BRAGIN, V., PETROVSKII, P., PRIKAZNOV, A., SIVAEV, I., BREGADZE, V.. Study of H-D exchange in 10-vertex Boron clusters by NMR spectroscopy. In: Physical Methods in Coordination and Supramolecular Chemistry, 27 septembrie - 1 octombrie 2006, Chişinău. Chisinau, Republic of Moldova: 2006, XVII, p. 101. ISBN 978-9975-62-066-6. |
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| Physical Methods in Coordination and Supramolecular Chemistry XVII, 2006 |
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Conferința "The XV-th International Conference Physical Methods in Coordination and Supramolecular Chemistry : The XVII-th Reading in memory of Acad. A.Ablov" Chişinău, Moldova, 27 septembrie - 1 octombrie 2006 | ||||||
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Decahydro-closo-decaborate anion [B10H10]2- is one of the most interesting objects in boron hydride chemistry. It was found recently that [B10H10]2- in methanol-d4 undergoes regiospecific proton-deuterium exchange at the cap positions of the bicapped square antiprism with formation of [1,10-B10H8D2]2- [1]. In this contribution proton-deuterium exchange in a series of derivatives of the decahydro-closo-decaborate anion [B10H10]2- bearing both electron-donating and electron-withdrawal substituents in methanol-d4 was studied using the method of 11B NMR spectroscopy. Substitution of deuterium for proton results in transformation of doublets from BH groups in 11B NMR spectra to singlets corresponding to BD groups. Based on the 11B NMR data positions and sequence of the proton-deuterium exchange for various derivatives of the decahydro-closo-decaborate anion were determined.figure |
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