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The Anomalous Behaviour of 18 O‐Labelled Compounds. Part IV. Vibrational Spectra of Isotopic Vanadate Ions
Author(s) -
Pinchas S.,
Shamir J.
Publication year - 1969
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.196900106
Subject(s) - chemistry , vanadate , raman spectroscopy , ion , aqueous solution , molecule , deuterium , inorganic chemistry , hydrogen bond , spectral line , crystallography , atomic physics , organic chemistry , physics , astronomy , optics
The Raman spectra of crystalline hydrated normal and 80 atom% 18 O‐labelled sodium orthovanadates were investigated, the bands observed thus being assigned to their respective original modes of vibration. The Raman bands of the aqueous solutions of these vanadates, containing mainly the respective HVO 4− 2 or DVO 4− 2 ions, were also studied and in most cases observed to rise in frequency as a result of the 18 O‐labelling, as expected on the assumption that the hydrogen bonding between the solvating water molecules and the vanadate ions is weakened by 18 O‐labelling the latter.