Zobrazeno 1 - 10
of 54
pro vyhledávání: '"John G. Philis"'
Autor:
John G. Philis
Publikováno v:
Journal of Molecular Structure. :32-36
Van der Waals heterodimers of p-difluorobenzene (DFB) with other molecules, prepared in a supersonic jet beam expansion, were studied by resonant two-photon ionization (R2PI) through their S1 ← S0 transition. The functional molecule in these system
Autor:
Christopher Thompson, Richard J. S. Morrison, Danielle Eve Martin, Evan G. Robertson, John G. Philis
Publikováno v:
Chemical Physics Letters. 463:29-32
Sec -butylbenzene has been investigated using resonant two-photon ionization (R2PI) and UV–UV hole-burning spectroscopy aided by ab initio calculations. All three conformers predicted from theory are observed in the spectrum, and are assigned by ro
Autor:
John G. Philis
Publikováno v:
Chemical Physics Letters. 449:291-295
The first spectroscopic study of the 3p ← n O multiphoton excitation of jet-cooled methanol and ethanol is presented. The mass-resolved resonance-enhanced multiphoton ionization (REMPI) spectra of CH 3 OH and CD 3 OD are compared to the VUV absorpt
Autor:
John G. Philis
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 67:1357-1361
Resonance-enhanced multiphoton ionization (REMPI) has been applied to detect the hot bands as well as the cold bands of the 1a2----3dxy(1A1) Rydberg transition of furan (jet-cooled, mass-analyzed). Based on the unambiguous assignment of the hot bands
Autor:
Vasilios S. Melissas, John G. Philis
Publikováno v:
Chemical Physics. 336:136-142
Mass-resolved, resonance-enhanced multiphoton ionization (REMPI) spectra of jet-cooled 2-methylfuran have been measured in various spectroscopic regions (visible and UV ns dye laser). The results have been interpreted as two-photon resonances and as
Autor:
Sanjay Wategaonkar, John G. Philis
Publikováno v:
Journal of Molecular Structure. :109-112
The resonance-enhanced multiphoton ionization, (1+1) REMPI and (2+2) REMPI S1 ← S0 spectra of cyclopropylbenzene (CPBz) have been measured in supersonic jet expansion under various cooling conditions. Both spectra include the pure electronic transi
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 758:17-20
Ab initio calculations at the CIS level of theory combined with several basis sets were performed to elucidate the geometry of the two lowest ππ* singlet states of aniline. A global picture emerges from this study. The 6-31++G* basis set was the on
The multiphoton ionization spectrum of jet-cooled pyrimidine in the 3p Rydberg and 3B1 (π∗,n) states
Autor:
John G. Philis
Publikováno v:
Journal of Molecular Spectroscopy. 232:26-29
Resonance-enhanced multiphoton ionization (REMPI) has been applied to study the n → 3 p Rydberg transition of pyrimidine (jet-cooled sample and mass resolved spectrum). Only the one component, the 3 p z ( B 2 ), appears in the (2 + 1) REMPI and the
Autor:
Alex Paleologos, John G. Philis
Publikováno v:
Journal of Molecular Structure. :117-120
Resonance enhanced multiphoton ionization spectroscopy, (2+1) REMPI, has been employed in jet cooled styrene vapors for the detection of Rydberg states. A resonance appears at 50,484 cm −1 and is interpreted as a 3p←HOMO Rydberg transition ( δ =
Publikováno v:
Chemical Physics. 293:99-109
A number of vibrational frequencies in the ground state of N-methylpyrrole (C4H4NCH3) have been determined via laser-induced dispersed fluorescence spectra recorded under jet-cooled conditions. Eight vibronic levels of the symmetry forbidden 3s(A(2))