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  • 1
    Electronic Resource
    Electronic Resource
    Neue Wege zum Aza-nido-decaboran-GerüstHerrn Professor Wolfgang Beck zum 60. Geburtstag gewidmet. (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 97-102 
    Details
    ISSN: 0009-2940
    Keywords: Aza-nido-decaborane(12) ; Aza-arachno-undecaborate(1  - ) ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Novel Syntheses of the Aza-nido-decaborane SkeletonThe known nido-NB9H12 (3) can be synthesized by thermolysis of either arachno-B9H13(NH3) (4) in xylene (11%) or arachno-B10H12(N3)(NH2) (5) in diglyme (100%). The deprotonation of 5 yields the anion arachno-[NB10H13(N3)]- (6), whose skeleton is derived from the closed 13-vertex deltahedron. On protonation, a degradation of 6 is observed to give nido-NB9H11(N3) (7), which crystallizes in the monoclinic space group P21/c. The borane 3 is attacked by Et3N · BH3 with evolution of H2 and formation of the 6-BH2  -  NEt3 derivative of 3 (8). Both nido-species 8 and 7 add the isonitrile CNtBu at the position 9 to yield the arachno-products 9 and 10, respectively. The adduct 11 is formed from 7 and the azadiboriridine (- tBuB  -  BtBu  -  NtBu  - ).
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250116
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  • 2
    Electronic Resource
    Electronic Resource
    1,3-Addition von Aziden an Azadecaboran: 6-Azadecaboran-4,9-diyltriazene (1992)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 2025-2026 
    Details
    ISSN: 0009-2940
    Keywords: Aza-nido-decaborane(12) ; (1H-Triazen-1,3-diyl)-aza-arachno-decaborane(13) ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,3-Addition of Azides to Azadecaborane: 6-Azadecaborane-4,9-diyltriazenesnido-NB9H12 (1) reacts with azides RN3 to form a coordinative B-N bond between B9 and N1 of RN3, accompanied by the α-addition of the B4-H bond of 1 to the N3 atom of RN3. The products 2a, b (R = H, CH2Ph, respectively) thus contain an azadecaborane skeleton and a five-membered unsaturated B2N3 ring with a common B-B edge. The product 2a crystallizes in the space group Pna21.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19921250909
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