Raman spectroscopy of lead sulphate-carbonate minerals: implications for hydrogen bonding
Frost, Ray L., Kloprogge, J. Theo, & Williams, Peter (2003) Raman spectroscopy of lead sulphate-carbonate minerals: implications for hydrogen bonding. Neues Jahrbuch fuer Mineralogie. Monatshefte, 2003(12), pp. 529-542.
The Raman spectrum of the basic carbonate-sulphate minerals known as leadhillite, susannite and caledonite have been measured and the spectra compared with the Raman spectra of cerussite, hydrocerussite and anglesite. Characteristic spectral patterns are observed for each mineral. The wavenumber position of the hydroxyl stretching bands is used to estimate the hydrogen bond distances in the minerals. The hydrogen bond distances for leadhillite polymorphs vary from 2.783 to 2.916 Å. In comparison the estimated hydrogen bond distances for hydrocerussite are much longer with values of 2.961 and 3.127 Å. The width of the hydroxyl stretching vibration provides an estimate of the variation of hydrogen bond distances for the OH groups in the mineral. The variation in bond length is greater for the longer hydrogen bonds. Characteristic sulphate and carbonate vibrations are also identified.
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|Item Type:||Journal Article|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2003 E. Schweizerbart'sche Verlagsbuchhandlung|
|Deposited On:||17 Jun 2009 23:06|
|Last Modified:||01 Mar 2012 03:13|
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