Proton dynamics in βNi(OH)2 and βNiOOH
1995; Elsevier BV; Volume: 213-214; Linguagem: Inglês
10.1016/0921-4526(95)00235-2
ISSN1873-2135
AutoresRita Baddour‐Hadjean, F. Fillaux, J. Tomkinson,
Tópico(s)X-ray Diffraction in Crystallography
ResumoThe INS spectra of nickel hydroxide βNi(OH)2 and its oxidized product βNiOOH reveal new aspects of the vibrational dynamics in these compounds: (i) all the protons in βNi(OH)2 are equivalent and covalently bonded to the oxygen atoms, (ii) the OH bending modes are clearly observed with INS whilst the optical counterparts are not resolved. A new assignment scheme is proposed and (iii) protons in βNiOOH are not specifically bound to any oxygen atom. They are inserted in lattice sites with high local symmetry.
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