Conclusions
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1.
The reaction of Al(BH4)3 with the unsolvated Ca(BH4)2 gave the complex Ca(BH4)2·Al(BH4)3, which is stable at room temperature; its density and IR spectrum are given.
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2.
Ca(BH4)2·Al(BH4)3 decomposes completely into the component borohydrides when heated in vacuo or when treated with donor solvents. The complex apparently has the structure [CaBH4]+[Al(BH4)4]− after treatment with octane.
Literature cited
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1188–1189, May, 1975.
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Titov, L.V., Eremin, E.R. Complex of aluminum borohydride with calcium borohydride. Russ Chem Bull 24, 1095–1096 (1975). https://doi.org/10.1007/BF00922975
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DOI: https://doi.org/10.1007/BF00922975