Preparation and Dehydrogenation Properties of Lithium Hydrazidobis(borane) (LiNH(BH3)NH2BH3)

详细信息    查看全文

• 作者：He Fu ; Junzhi Yang ; Xiaojuan Wang ; Gongbiao Xin ; Jie Zheng ; Xingguo Li
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：July 21, 2014
• 年：2014
• 卷：53
• 期：14
• 页码：7334-7339
• 全文大小：312K
• ISSN：1520-510X

文摘

LiNH(BH₃)NH₂BH₃, the first example of metal-substituted hydrazine bisborane (HBB), is synthesized via the reaction between HBB and n-butyllithium in ether solution. ¹¹B NMR and Fourier transform infrared spectroscopy indicate a new structure, in which one of the N鈥揌 bonds is replaced by a N鈥揕i bond. The X-ray diffraction pattern of the product also indicates the formation of a new crystal structure. This compound releases hydrogen at 126 and 170 掳C with satisfactory purity and exhibits superior hydrogen storage properties compared with HBB. Differential scanning calorimetry measurement suggests the dehydrogenation reaction of this compound is less exothermic than that of HBB.