J Chem Phys 2007 Mar;126(9):094302
Department of Chemistry, University of Puerto Rico, Rio Piedras, P.O. Box 23346, San Juan, Puerto Rico.
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J Chem Phys 2006 Jan;124(4):044313
Department of Chemistry, University of Puerto Rico, Rio Piedras, P.O. Box 23346, San Juan, Puerto Rico 00931-3346.
Dynamics of the IR emission induced by excitation of the acetylene molecule using the (3(2)K(a) (0,1,2),A (1)A(u)<--4(1)l(a) (1),X (1)Sigma(g) (+)) transition was investigated. The observed IR emission was assigned to transitions between the ground-state vibrational levels. Acetylene fluorescence quenching induced by external electric and magnetic fields acting upon the system prepared using the (3(4)K(a) (1),A (1)A(u)<--0(0)l(a) (0),X (1)Sigma(g) (+)) excitation was also studied. Read More
J Phys Chem A 2007 Aug 4;111(34):8357-66. Epub 2007 Aug 4.
Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907-2084, USA.
The T1(n,pi*) <-- S0 transition of 2-cyclopenten-1-one (2CP) was investigated by using phosphorescence excitation (PE) spectroscopy in a free-jet expansion. The origin band, near 385 nm, is the most intense feature in the T1(n,pi*) <-- S0 PE spectrum. A short progression in the ring-bending mode (nu'(30)) is also observed. Read More
J Phys Chem A 2008 Mar 6;112(12):2543-52. Epub 2008 Mar 6.
Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, USA.
Relaxation of highly vibrationally excited pyridine (C5NH5) by collisions with carbon dioxide has been investigated using diode laser transient absorption spectroscopy. Vibrationally hot pyridine (E' = 40,660 cm(-1)) was prepared by 248 nm excimer laser excitation followed by rapid radiationless relaxation to the ground electronic state. Pyridine then collides with CO2, populating the high rotational CO2 states with large amounts of translational energy. Read More
J Chem Phys 2007 Oct;127(15):154307
School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Angle-resolved photoelectron spectra from rotationally selected A1Au state acetylene have been recorded using velocity-map imaging. Several Renner-Teller split vibrational bands have been observed and assigned, showing good agreement with previous zero kinetic energy photoelectron (ZEKE) work [S. T. Read More