Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 130, Issue 34, Pages 11494-11502Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja803297b
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- National Science Foundation
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The reactions of the arachno-4,6-C(2)B(7)H(13) carborane with the secondary and primary amines, Me(2)NHBH(3) and (t)BuNH(2)BH(3), in ionic liquid media result in both boron-insertion into the cage at a position across the two cage-carbons and additional hydrogen-elimination via the reaction of a hydridic B-H with a protonic amine N-H hydrogen to produce the 6-(RR'N)-nido-5,7-C(2)B(8)H(11) carboranes. Computational characterizations of these compounds and the previously reported 6-ClC(6)H(4)-9-(RR'N)-nido-6-NB(9)H(10) azaboranes indicate that the amine-nitrogens form unique exopolyhedral dative B=N double bonds with a cage-boron.
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