Abstract
Raman spectra are reported for a series of basic chlorides of lead(II) which have been shown in other studies to be important in some hydrothermal ore solutions and in lead corrosion in aqueous chloride media. Synthetic lead chloride hydroxide and the mineral laurionite are shown to have identical polymeric structures. The relation between this infinite folded-band structure and the cluster formulations of related perchlorate compounds is rationalized in terms of equilibria including small rings and linear chains. The similarity of the Raman spectrum of (PbOH+)n(Cl–)n to those of Pb6Cl4(OH)8 and Pb8Cl4(OH)12(or PbCl2·3Pb[OH]2) indicate closely related structures in all three cases. Vibrational spectra are reported for Cs4[PbCl6].
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