1.
Phys Rev Lett
; 86(22): 5035-8, 2001 May 28.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11384414
RESUMO
This work represents the first experimental demonstration that planar molecules tend to travel as a "frisbee" when a gaseous mixture with lighter carriers expands into a vacuum, the orientation being due to collisions. The molecule is benzene, the prototype of aromatic chemistry. The demonstration is via two complementary experiments: interrogating benzene by IR-laser light and controlling its orientation by selective scattering on rare gas targets. The results cast new light on the microscopic mechanisms of collisional alignment and suggest a useful way to produce intense beams of aligned molecules, permitting studies of steric effects in gas-phase processes and in surface catalysis.
2.
Attual Dent
; 1(27): 40-3, 1985 Nov 03.
Artigo
em Italiano
| MEDLINE
| ID: mdl-3869465