Exploring the Vibrational Structure of the Vinylidene Anion using Argon Predissociation Spectroscopy Kristin Breen , Helen Gerardi, George Gardenier, Timothy Guasco, Jennifer Laaser, Gary Weddle, Eric Diken, and Mark Johnson Department of Chemistry, Yale University, New Haven, CT, 06511. Presented at the 64 th International Symposium on Molecular Spectroscopy June 22-26, 2009
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Exploring the Vibrational Structure of the Vinylidene Anion using Argon Predissociation Spectroscopy Kristin Breen, Helen Gerardi, George Gardenier, Timothy.
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Exploring the Vibrational Structure of the Vinylidene Anion using Argon
Predissociation Spectroscopy
Kristin Breen, Helen Gerardi, George Gardenier, Timothy Guasco, Jennifer Laaser, Gary Weddle, Eric Diken, and Mark Johnson
Department of Chemistry, Yale University, New Haven, CT, 06511.
Presented at the 64th International Symposium on Molecular Spectroscopy
June 22-26, 2009
Outline• What is vinylidene
– Facts / synthesis– Good for vibrational autodetachment
• Photodetachment in vinylidene– Embedded resonances in direct detachment– Below threshold detachment
• Ar-predissociation to assign vibrations
• N2O as a messenger species
VinylideneImportant in…
Acetylene pyrolysis
Acetylene oxidation
Interstellar medium
Unsaturated carbenes in organometallic reactions
Vinylidene / Acetylene Isomerization
Ervin, K. M.; Ho, J.; Lineberger, W. C. J. Chem. Phys. 1989, 91, 5974-5992.