BH4 cluster ordering in complex metal borohydrides
نویسندگان
چکیده
منابع مشابه
Eutectic melting in metal borohydrides.
A series of monometallic borohydrides and borohydride eutectic mixtures have been investigated during thermal ramping by mass spectroscopy, differential scanning calorimetry, and photography. Mixtures of LiBH4-NaBH4, LiBH4-KBH4, LiBH4-Mg(BH4)2, LiBH4-Ca(BH4)2, LiBH4-Mn(BH4)2, NaBH4-KBH4, and LiBH4-NaBH4-KBH4 all displayed melting behaviour below that of the monometallic phases (up to 167 °C low...
متن کاملEutectic Melting in Metal Borohydrides
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Double-cation borohydrides MLim−n(BH4)m (M=Zn, n= 2; M=Al, n= 3; M=Zr, n= 4; n≤m) were expected to be synthesized and their thermodynamical stabilities were also examined experimentally. The samples with the compositions of ZnLi(BH4)3 and AlLi(BH4)4 disproportionate into Zn(BH4)2(or Al(BH4)3-) and LiBH4-based phases upon heating, respectively. However, no disproportionation reaction is observed...
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A novel metal borohydride ammonia-borane complex Ca(BH4)2·NH3BH3 is characterized as the decomposition product of the recently reported perovskite-type metal borohydride NH4Ca(BH4)3, suggesting that ammonium-based metal borohydrides release hydrogen gas via ammonia-borane-complexes. For the first time the concept of proton-hydride interactions to promote hydrogen release is applied to a cation-...
متن کاملLiSc(BH4)4: a novel salt of Li+ and discrete Sc(BH4)4(-) complex anions.
LiSc(BH4)4 has been prepared by ball milling of LiBH4 and ScCl3. Vibrational spectroscopy indicates the presence of discrete Sc(BH4)4(-) ions. DFT calculations of this isolated complex ion confirm that it is a stable complex, and the calculated vibrational spectra agree well with the experimental ones. The four BH4(-) groups are oriented with a tilted plane of three hydrogen atoms directed to t...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations and Advances
سال: 2014
ISSN: 2053-2733
DOI: 10.1107/s2053273314086392