ISSN:
0009-2940
Keywords:
nido-Azadecaborane(12)
;
closo-Azadodecaborane(12)
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A Novel Access to the Icosahedral closo NB11 SkeletonAt 200°C, the open skeleton of NB9H12 is closed to the icosahedral skeleton of NB11H10Y (3) by the action of three equivalents of Et3N · BH3, whereby one equivalent forms a bridge Y = —BH2—NEt2—CH2—CH2— between the adjacent cluster atoms N1 and B2; the product 3 crystallizes in the space group P¯. With L · BH3 (L = NMe3, SMe2) instead of Et3N · BH3, the nido-borane NB9H12 is transformed into the closo-borane (LBH2)NB11H11 (4a, b) at 140°C. By allowing tBuNH2 to react with 4b, the N-bonded ligand Me2SBH2 is removed with formation of the aza-closo-dodecaborate [t BuNH3] [NB11H11], thus opening a new route to closo-NB11H12.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19941270113
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