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Title:MICROSOLVATION OF THE Mg2SO42+ CATION: CRYOGENIC VIBRATIONAL SPECTROSCOPY OF (Mg2+)2SO42_(H2O)n=4_11
Author(s):Kelleher, Patrick J
Contributor(s):Johnson, Mark; Fournier, Joseph; Johnson, Christopher J; DePalma, Joseph W
Subject(s):Ions
Abstract:Cryogenic ion vibrational predissociation (CIVP) spectroscopy was used to examine the onset of solvation upon the incremental addition of water molecules to the Mg$_{2}$SO$_{4}$$^{2+}$(H$_{2}$O)$_{n}$ cation (n = 4 � 11). D$_{2}$ predissociation spectra are reported for each cluster over the range 1000-3800 cm$^{-1}$. Initially, the Mg$^{2+}$ atoms each interact with two oxygen atoms on the sulfate anion in a bifurcated arrangement. The breaking of this motif occurs upon addition of the eighth water molecule as evidenced by splitting of the water bend, and broad absorption in the 3000-3400 cm$^{-1}$ range indicative of hydrogen bonding between the water molecules and sulfate ion.
Issue Date:22-Jun-15
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:ACS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/79376
Date Available in IDEALS:2016-01-05


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