Download e-book for iPad: New Results in Boron Chemistry by Boschke F.L.

By Boschke F.L.

Content material: concept of orientation and stereoselection / ok. Fukui -- contemporary advancements within the chemistry of the reduce boron hydrides / H.D. Johnson, S.G. Shore -- Preparative elements of boron-nitrogen ring compounds / A. Meller -- 1,3,2-diazaboracycloalkanes / okay. Niedenzu, C.D. Miller -- Darstellung und Systematisierung von Boraten und Polyboraten / G. Heller -- Allene-Olefin and Allene-Allene cycloadditions ; Methylenecyclobutane and 1,2-dimethylenecyclobutane degenerate rearrangements / J.E. Baldwin, R.H. Fleming -- Nitrogen inversion, test and thought / J.M. Lehn -- Konformative Beweglichkeit von Siebenring-Systemen -- advent to all-valence electrons S.C.F. ; Calculations of huge natural molecules: conception and purposes

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E. : Inorg. Chem. 8, 1336 (1969). 74) Wagner, R. , Wilson, C. : Inorg. Chem. 5, 1009 (1966). 75) Riess, J. , VanWazer, J. : J. Am. Chem. Soc. 89, 851 (1967). , Kondo, H. : J. Am. Chem. Soc. 88, 2045 (1966). , VanWazer, J. : Bull. Sor Chim. France 1846 (1966). 7s) Cowley, A. , Dierdorf, D. : J. Am. Chem. Soe. 91, 6609 (1969). 79) Rudolph, R. , Parry, R. , Farran, C. F. : Inorg. Chem. 5, 723 (1966). s0) McGandy, E. : Dissertation Abstr. 22, 754 (1961). , Goubeau, J . : Z. Anorg. Allgem. Chem. 356, 289 (1968).

The presence of the mercapto-group in the bridging position is unequivocally established b y the b o r o n - l l nmr 116 Recent Developmentsin the Chemistryof the Lower Boron Hydrides spectrum. A 1:2:1 triplet is observed with each member of the triplet exhibiting well resolved doublet fine structure due to coupling with the bridge hydrogen. b) t~-Dimethylaminodiborane(6) A number of Lewis base adducts of ~-dimethylaminodiborane(6) have been prepared 11o). ~x. )~ +L ---'r I H~B--N--BHs t L these adducts in the vapor phase, the following relative order of base strengths is reported 110~: CsHsN>(CHa)3P>2-(CHs)CsH4N> (CHs) 2PH > CHsPH2 > CFs(CHs) 2P.

140) _ _ j . Am. Chem. Soc. 88, 1143 (1966) ; this reaction was first carried out with materials of normal isotopic abundance b y Spielman, J. , Burg, A. B. : Inorg. Chem. 2, 1139 (1963). 141) Lipscomb, W. N. : Boron Hydrides. New York: W. A. B e n j a m i n 1963. 143) Dupont, J. : J. Inorg. Nucl. Chem. 15, 310 (1960). , Fleming, M. , Parry, R. W. : J. Am. Chem. Soc. 84, 1767 (1962). 144) LaPrade, M. , Nordman, C. : Inorg. Chem. 8, 1669 (1969). 145) Centofanti, L. , Parry, R. : Inorg. Chem. 8, 2072 (1969).

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New Results in Boron Chemistry by Boschke F.L.


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