MICROSOLVATION OF THE Mg2SO42+ CATION: CRYOGENIC VIBRATIONAL SPECTROSCOPY OF (Mg2+)2SO42_(H2O)n=4_11

Kelleher, Patrick J.

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https://hdl.handle.net/2142/79376 Copy

Description

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
• DePalma, Joseph W.

Issue Date

22-Jun-15

Keyword(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.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79376

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