Conclusions
By a complete x-ray diffraction study of cesium 9,10,11-trimethyl-7,8-dicarba-nido-undecaborate(1-) we proved the axial orientation of the Me group attached to the B10 atom of the open face of the nido-carborane polyhedron. This serves as an additional proof of the stereospecificity of the alkylation reaction of the dicarbollide ions and the necessity for a migration stage of the boron atom with the substituent to the site of the deficient apex of the icosahedron to form a derivative with an equatorial disposition of the alkyl group.
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Literature cited
R. M. Adams, Pure Appl. Chem.,30, 681 (1972).
S. P. Knyazev, V. A. Brattsev, and V. I. Stanko, Dokl. Akad. Nauk. SSSR,234, 837, 1097 (1977);246, 368 (1979).
S. P. Knyazev, V. A. Brattsev, and V. I. Stanko, Zh. Obshch. Khim.,47, 2627 (1977).
N. I. Kirillova, M. Yu. Antipin, Yu. V. Gol'tyapin, Yu. T. Struchkov, and V. I. Stanko, Izv. Akad. Nauk SSSR, Ser. Khim., 859 (1978).
N. I. Kirillova, A. I. Klimova, Yu. T. Struchkov, and V. I. Stanko, Zh. Strukt. Khim.,17, 892 (1976).
N. I. Kirillova, A. I. Klimova, Yu. T. Struchkov, and V. I. Stanko, Zh. Strukt. Khim.,17, 675 (1976).
Yu. T. Struchkov, M. Yu. Antipin, V. I. Stanko, V. A. Brattsev, N. I. Kirillova, and S. P. Knyazev, J. Organomet. Chem.,141, 133 (1977).
M. R. Churchill and A. H. Reis, J. Chem. Soc. Dalton Trans., 1314 (1972).
M. R. Churchill and B. G. DeBoer, J. Am. Chem. Soc.,96, 6310 (1974).
M. R. Churchill and A. H. Reis, J. Chem. Soc. Dalton Trans., 1317 (1972).
J. H. Hall, D. A. Dihon, D. A. Kleier, T. A. Halgren, L. D. Brown, and W. N. Lipscomb, J. Am. Chem. Soc.,97, 4202 (1975).
Ch. Svensson, Acta Crystallogr.,B32, 3341 (1976).
L. Randassio, Gazz. Chim. Ital.,104, 991 (1974).
A. Zalkin, T. E. Hopkins, and D. H. Templeton, Inorg. Chem.,6, 1911 (1967).
G. B. Bokii, Crystallochemistry [in Russian], Nauka (1971).
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The atoms in the carborane polyhedron are numbered as in [1].
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2474–2481, November, 1979.
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Kirillova, N.I., Antipin, M.Y., Knyazev, S.P. et al. The crystal and molecular structure of cesium 9,10,11-trimethyl-7,8-dicarba-nido-undecaborate(1-) Cs[9,10,11-Me3-7,8-C2B9H9]. Russ Chem Bull 28, 2289–2295 (1979). https://doi.org/10.1007/BF00951701
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DOI: https://doi.org/10.1007/BF00951701