Vibrational spectra of zirconium tetrahydroborate and related molecules

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Abstract
The i.r. spectra of Zr(BH4)4, Zr(BD4)4, Hf(BH4)4, Hf(BD4)4, and U(BH4)4 have been interpreted in conjunction with the Raman spectra of benzene solutions of Zr(BH4)4 and Hf(BH4)4. In all cases the results are strongly indicative of a triple hydrogen bridge structure of symmetry point group Td.