Synthesis of the Long-Sought Unsubstituted Aminodiboranate Na(H3B-NH2-BH3) and Its N-Alkyl Analogs

被引：44

作者：

Daly, Scott R. ^{[1
]}

Bellott, Brian J. ^{[1
]}

Kim, Do Young ^{[1
]}

Girolami, Gregory S. ^{[1
]}

机构：

[1] Univ Illinois, Sch Chem Sci, Urbana, IL 61801 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 21期

基金：

美国国家科学基金会;

关键词：

HYDROGEN STORAGE; AMMONIA-BORANE; AMINOBORANE COMPLEXES; AMIDOBORANE; HYDRIDES; DIAMMONIATE; DIBORANE; ISOMERS; ION;

D O I：

10.1021/ja1016427

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reduction of ammonia borane, NH3 center dot BH3, with Na or NaNH2 in refluxing tetrahydrofuran (thf) affords the new compound, the unsubstituted aminodiboranate Na(BH3-NH2-BH3) (1a). Similar N-alkyl- and N,N-dialkylaminodiboranate salts, Na(H3B-NHMe-BH3) (1b), Na(H3B-NHEt-BH3) (1c), Na(H3B-NMeEt-BH3) (1d), Na[H3B-N(C4H8)-BH3] (1e), and Na[H3B-N(C5H10)-BH3] (1f), where N(C4H8) = pyrrolido and N(C5H10) = piperido, have also been prepared, along with their adducts with dioxane Na[H3B-NRR'-BH3](diox)(x) where x = 0.5 or 1.0 (2a-f). Crystal structures of 2b, 2c, and 2e are reported. Treatment of ErCl3 with Na(H3B-NH2-BH3) in thf affords the new erbium complex Er(H3B-NH2-BH3)Cl-2(thf)(3), 3, which has been crystallographically characterized. H-1 and B-11 NMR spectra of the new compounds are reported.

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页码：7254 / +

页数：3

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