1977
DOI: 10.1016/0022-1902(77)80168-1
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Influence of the acidity on the polymerisation of Hf(IV) in aqueous solutions of HfOCl2 observed by the time differential perturbed angular correlation technique

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1977
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Cited by 10 publications
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“…An interesting observation is the progressive increase of the perturbation towards an equilibrium value, with the time elapsed after the addition of the fluoride; this effect might be due to a polymerization reaction involving the excess of F", since the rate of the process is strongly dependent on the free fluoride concentration. TDPAC experiments on hydrochloric solutions of hafnium oxychloride show distinct changes in the λ 2 and λ 4 attenuation parameters with the acidity [38], In 1 M HCl solutions, the data are consistent with Debye's expression and seem to point to the presence of [Hf 4 (0H) 8 (H 2 0) 16 ] 8 + , 8 CI" species. For weaker acidities, the correlation times increase markedly, as one would expect from the expanding size of the labelled molecules due to polymerization reactions which have been asserted from investigations with different methods.…”
Section: ) Solution Chemistrysupporting
confidence: 75%
“…An interesting observation is the progressive increase of the perturbation towards an equilibrium value, with the time elapsed after the addition of the fluoride; this effect might be due to a polymerization reaction involving the excess of F", since the rate of the process is strongly dependent on the free fluoride concentration. TDPAC experiments on hydrochloric solutions of hafnium oxychloride show distinct changes in the λ 2 and λ 4 attenuation parameters with the acidity [38], In 1 M HCl solutions, the data are consistent with Debye's expression and seem to point to the presence of [Hf 4 (0H) 8 (H 2 0) 16 ] 8 + , 8 CI" species. For weaker acidities, the correlation times increase markedly, as one would expect from the expanding size of the labelled molecules due to polymerization reactions which have been asserted from investigations with different methods.…”
Section: ) Solution Chemistrysupporting
confidence: 75%