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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 1489-1491 
    ISSN: 0044-2313
    Keywords: 2,9-{N,N′-(2-aminopyridine)}octahydro-closo-decaborate(2-) ; Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Crystal Structure of [P(C6H5)4][2,9-{N,N′-(2-NH—(C5H4N))}B10H8][N(C4H9)4]2[B10H10] reacts with 2-aminopyridine forming a product mixture from which [2,9-{N,N′-(2-NH—(C5H4N))}B10H8]- can be isolated by ion exchange chromatography on diethylaminoethyl(DEAE) cellulose. The crystal structure of [P(C6H5)4][2,9-{N,N′-(2-NH—(C5H4N))}B10H8] (triclinic, space group P1, a = 10.1103(9), b = 11.5665(9), c = 14.877(2) Å, α = 102.600(8), β = 107.567(8) und γ = 96.487(7)°, Z = 2) reveals the bonding of 2-NH2-(C5H4N) via both N atoms to vicinal B atoms of the two square planes of the B10 cluster (B2—N1 = 1,541(7) und B9—N2 = 1.505(7) Å) forming a five-membered ring.
    Notes: [N(C4H9)4]2[B10H10] reagiert mit 2-Aminopyridin unter Bildung eines Produktgemisches, aus dem durch Ionenaustauschchromatographie an Diethylaminoethyl(DEAE)-Cellulose [2,9-{N,N′-(2-NH—(C5H4N))}B10H8]- isoliert werden kann. Die Röntgenstrukturanalyse an [P(C6H5)4][2,9-{N,N′-(2-NH—(C5H4N))}B10H8] (triklin, Raumgruppe P1, a = 10,1103(9), b = 11,5665(9), c = 14,877(2) Å, α = 102,600(8), β = 107,567(8) und γ = 96,487(7)°, Z = 2) beweist, daß 2-NH2-(C5H4N) über beide N-Atome an benachbarte B-Atome der beiden quadratischen Ebenen des B10-Clusters (B2—N1 = 1,541(7) und B9—N2 = 1,505(7) Å) unter Ausbildung eines Fünfringes gebunden ist.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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