1986
DOI: 10.1071/ch9860137
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Ion Ion Solvent Interactions in Solution .X. Group-2 Perchlorates in Water

Abstract: Solutions of Mg(ClO4)2, Ca(ClO4)2 and Sr (ClO4)2 have been studied at a variety of concentrations up to saturation by means of infrared absorption, Raman scattering and multinuclear n.m.r. spectroscopy. For solutions of Mg(ClO4)2 there was little ion association up to saturation but for the other two salts association to both solvent shared anion- cation complexes and contact anion-cation complexes was identified. The nature of the association process was probed by using line broadening for the quadrupolar … Show more

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Cited by 13 publications
(17 citation statements)
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“…4) of Mg(C104)2 show no significant change of spectral parameters with respect to the solu tions of HCIO4. at the same concentrations; therefore no complex formation is remarked, in agreement with previous work [12,29].…”
Section: B) Nmr Datasupporting
confidence: 80%
“…4) of Mg(C104)2 show no significant change of spectral parameters with respect to the solu tions of HCIO4. at the same concentrations; therefore no complex formation is remarked, in agreement with previous work [12,29].…”
Section: B) Nmr Datasupporting
confidence: 80%
“…A similar feature was observed in Raman studies of aqueous Naperchlorate and Mg-perchlorate, which has been assigned to either a hot band and heavy oxygen species, 10 or the overtone of the 2 × ν 2 (E) at ∼465 cm −1 . 11,12 The dominant component appearing at ∼933 cm −1 ("peak 2") represents the isolated, weakly hydrated ClO 4 − species. 10,12 This species retains the T d symmetry because it is free of association with other ions in the solutions.…”
Section: Discussionmentioning
confidence: 99%
“…11,12 The dominant component appearing at ∼933 cm −1 ("peak 2") represents the isolated, weakly hydrated ClO 4 − species. 10,12 This species retains the T d symmetry because it is free of association with other ions in the solutions. Thus, we denote the integrated intensity below this component as I free .…”
Section: Discussionmentioning
confidence: 99%
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“…IR spectroscopy was used in the region of the intrinsic vibrations n 1 and n 3 of the ClO 4 − ion to study the aqueous solutions of magnesium perchlorates (0.9 M and 3.0 M), calcium (0.7 M and 3.2 M) and strontium (0.5 M and 3.6 M). 4 Raman scattering and multinuclear NMR spectroscopy at a greater variation of solution concentration under study have permitted the establishment of two types of associations: solvent shared anion-cation complexes and contact anioncation complexes. The extent of association to solvent shared anion-cation complexes was found to increase in the series of Mg +2 < Ca +2 < Sr +2 .…”
Section: Examined the Atr-ftir Spectra Of Aqueous Naclo 4 Liclo 4 mentioning
confidence: 99%