13C-nmr spectra of carbon dioxide in water are reported for a wide range in pH. Chemical shifts were determined for the following species: CO2(g), CO2(aq), HCO3−(aq), CO32−(aq). A linear relationship was found between the shift of the 13C line and the fraction of carbonate ion calculated to be present, as well as between the ratio of the area under the 1067 cm−1 (carbonate) Raman peak to the sum of the area under the 1067 cm−1 and 1017 cm−1 (bicarbonate) peaks and the fraction carbonate.

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The new trifluoromethylsulfates Ag(SO3CF3)2 and Au(SO3CF3)3, as well as the compound Cs[Au(SO3CF3)4], are synthesised by the solvolysis of the corresponding fluorosulfates in an excess of trifluoromethyl sulfuric acid. The resulting compounds are characterised by their vibrational spectra and, in the case of Ag(SO3CF3)2, also by esr.

The synthesis of a number of compounds containing the hexakis(fluorosulfato)palladate(IV) anion and the cations Cs+, Ba2+,NO+, and ClO2+ is reported. All compounds are diamagnetic. Also reported is the synthesis of Pd[M(SO3F)6], where M = Pt(IV) and Sn(IV). Here, palladium(II) is found in a regular octahedral environment. Both compounds are paramagnetic, consistent with a 3A2g ground state. Curie–Weiss law behavior is found and ligand field parameters for the Pd(II) derivatives are reported. Vibrational spectra are reported for all new fluorosulfato complexes.

The reduction of ternary fluorosulfato complexes of palladium(IV) like cesium hexakis(fluorosulfato)palladate(IV) by bromine in liquid sulfur dioxide at room temperature or at slightly elevated temperatures results in the formation of cesium tetrakis(fluorosulfato)palladate(II), according to:[Formula: see text]In contrast to all previously reported palladium(II) fluorosulfato derivatives, Pd2+ is found in a square planar environment resulting in diamagnetism.