Drift -Tube Ion Mobility Measurements

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Presentation transcript:

Drift -Tube Ion Mobility Measurements o-o-o-o-o-o

C32+ C31+ C30+ C29+ Bowers and coworkers

Exploding Star Try to reproduce the stellar plasma in the laboratory

Focused laser pulse graphite disk He pulse

graphite disk skimmer hole into mass spectrometer carbon plasma Rick Smalley

Mass spectrum of carbon in which C60 and C70 were first recognised as special Rice Sussex NNC

32 carbon atom polyyne chain CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 32 carbon atom polyyne chain David Walton (Sussex)

carbon plasma

skimmer hole into mass spectrometer

graphite disk skimmer hole into mass spectrometer carbon plasma Rick Smalley

Mass Spectrum of Carbon Vapour C13 in ca 1947 (Hahn et al) C33 in a carbon arc 1961 (Hintenberger et al Rice Sussex NNC

Rice Sussex NNC

Chains and Fullerenes + ???

C32+ Bowers and coworkers

C32+ Bowers and coworkers

C32+ C31+ Bowers and coworkers

C32+ C31+ C30+ Bowers and coworkers

graphite disk skimmer hole into mass spectrometer carbon plasma Rick Smalley

Plasma in lab Exploding Star Try to reproduce the stellar plasma in the laboratory

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

At Sussex David Walton (shown here with a model of C24) and coworkers had synthesised polyyne chain molecules with up to 32 carbon atoms

Should produce long carbon chains Graphite Target

Should produce long carbon chains Graphite Target

C32+ C31+ C30+ C29+ Bowers and coworkers

Drift -Tube Ion Mobility Measurements o-o-o-o-o-o

Drift -Tube Ion Mobility Measurements o-o-o-o-o-o

Exploding Star

We tried to reproduce, in the laboratory, the plasma round a cool carbon star by vapourising graphite with a laser

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC ©