Infrared spectroscopic evidence for second-sphere hydration in aqueous solutions of Al sup 3+ , Cr sup 3+ , and Rh sup 3+

Journal Article · Thu Oct 03 04:00:00 EDT 1991 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100173a018· OSTI ID:7273827

Bergstroem, P A; Lindgren, J ^[1]; Read, M; Sandstroem, M ^[2]

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1. Univ. of Uppsala (Sweden)
2. Royal Inst. of Tech., Stockholm (Sweden)

The hydration of the chromium(III), rhodium(III), and aluminum(III) ions in aqueous perchlorate solution has been studied by vibrational spectroscopy in both the OD (2,900-1,800 cm{sup {minus}1}) and OH (4,000-2,800 cm{sup {minus}1}) stretching regions, using an infrared absorption double-difference method. By isotopic substitution of hydrogen atoms it has been possible to extract spectra of ion-perturbed HDO molecules. The OD and OH stretching spectra obtain bands that can be assigned to the first and second hydration spheres of the cations and are consistent with recent results from solution X-ray and diffusion studies.

• OSTI ID: 7273827
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 95:20; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ABSORPTION SPECTROSCOPY
ALUMINIUM
AQUEOUS SOLUTIONS
CATIONS
CHARGED PARTICLES
CHLORINE COMPOUNDS
CHROMIUM
COMPARATIVE EVALUATIONS
DATA
DIFFUSION
DISPERSIONS
ELEMENTS
EVALUATION
EXPERIMENTAL DATA
HALOGEN COMPOUNDS
HYDRATION
INFORMATION
INFRARED SPECTRA
IONS
ISOTOPE EFFECTS
METALS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PERCHLORATES
PLATINUM METALS
RHODIUM
SOLUTIONS
SOLVATION
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY