Resonance enhanced multiphoton ionization spectroscopy for detection of azabenzenes in supersonic beam mass spectrometry

Tembreull, Roger.; Sin, Chung Hang; Pang, Ho Ming.; Lubman, David M.

doi:10.1021/ac00291a038

Cited by 65 publications

(30 citation statements)

References 38 publications

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“…The IEs of 2-PY and of 2-HP were determined by electron impact ionization [126], photoelectron [127], resonance enhanced multiphoton ionization [128], zero kinetic energy (ZEKE) photoelectron, resonantly enhanced two-photon ionization, and mass analyzed threshold ionization (MATI) spectroscopies [129,130], and more recently by slow photoelectron spectroscopy [9]. For 2-PY, ZEKE spectra provided an IE (2-PY) of 8.4479 AE 0.0006 eV and IE (2-HP) of 8.9384 AE 0.0006 eV [129], which were confirmed later by the SPES study of Poully et al [9].…”

Section: -Pyridonementioning

confidence: 99%

Photoionization Spectroscopy of Nucleobases and Analogues in the Gas Phase Using Synchrotron Radiation as Excitation Light Source

Schwell

Hochlaf

2014

Topics in Current Chemistry

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We review here the photoionization and photoelectron spectroscopy of the gas phase nucleic acid bases adenine, thymine, uracil, cytosine, and guanine, as well as the three base analogues 2-hydroxyisoquinoline, 2-pyridone, and δ-valerolactam in the vacuum ultraviolet (VUV) spectral regime. The chapter focuses on experimental work performed with VUV synchrotron radiation and related ab initio quantum chemical calculations of higher excited states beyond the ionization energy. After a general part, where experimental and theoretical techniques are described in detail, key results are presented by order of growing complexity in the spectra of the molecules. Here we concentrate on (1) the accurate determination of ionization energies of isolated gas phase NABs and investigation of the vibrational structure of involved ionic states, including their mutual vibronic couplings, (2) the treatment of tautomerism after photoionization, in competition with other intramolecular processes, (3) the study of fragmentation of these molecular systems at low and high internal energies, and (4) the study of the evolution of the covalent character of hydrogen bonding upon substitution, i.e., examination of electronic effects (acceptor, donor, etc.).

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Section: -Pyridonementioning

confidence: 99%

Photoionization Spectroscopy of Nucleobases and Analogues in the Gas Phase Using Synchrotron Radiation as Excitation Light Source

Schwell

Hochlaf

2014

Topics in Current Chemistry

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“…[32][33][34][35][36][37][38][39] Recently, twocolor ionization spectra and dispersed fluorescence spectra of 2PY and 2HP were investigated by Nimlos and co-workers under a collision-free condition in a supersonic jet. 33 Three electronic origin bands were observed for the S 1 ←S 0 transition of the monomer; two of them at 29 831 and 29 928 cm Ϫ1 were assigned to the origins of the *← transition of 2PY, and the third band at 36 123 cm Ϫ1 was assigned to the origin of 2HP by a comparison with the results reported in condense and crystalline phases.…”

Section: Introductionmentioning

confidence: 99%

Vibrational spectroscopy of 2-pyridone and its clusters in supersonic jets: Structures of the clusters as revealed by characteristic shifts of the NH and C=O bands

Matsuda¹,

Ebata²,

Mikami³

1999

The Journal of Chemical Physics

153

159

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Articles you may be interested inPhotofragment emission yield spectroscopy of acetylene in the D̃ 1 Π u , Ẽ 1 A, and F̃ 1 Σ u + states by vacuum ultraviolet and infrared vacuum ultraviolet double-resonance laser excitations Structures of hydrogen-bonded clusters of benzyl alcohol with water investigated by infrared-ultraviolet double resonance spectroscopy in supersonic jet J. Chem. Phys. 111, 8438 (1999); 10.1063/1.480184 Structures and the vibrational relaxations of size-selected benzonitrile-( H 2 O ) n=1-3 and -( CH 3 OH ) n=1-3 clusters studied by fluorescence detected Raman and infrared spectroscopies J. Chem. Phys. 110, 9504 (1999); 10.1063/1.478915Characterizations of the hydrogen-bond structures of 2-naphthol-( H 2 O ) n (n=0-3 and 5) clusters by infraredultraviolet double-resonance spectroscopy Vibrational spectroscopy of the key functional vibrations of 2-pyridone and its hydrogen-bonded clusters with water, methanol, dioxane, dimethylether, as well as its dimer, has been carried out by using infrared-ultraviolet ͑IR-UV͒ and stimulated Raman-UV double resonance methods combined with fluorescence detection. The characteristic spectral changes upon the cluster formation have been observed for the NH and CvO stretching vibrations of the bare molecule and also for the OH stretching vibrations of the solvent molecules. The cluster structures were investigated by comparing the observed spectra with the simulated ones of the energy-optimized structures obtained by ab-initio molecular orbital calculations. It was found that the ''ring-type'' hydrogen-bonded structure is appropriate for the cluster with water or methanol, while the ''linear-type'' hydrogen-bonded structure is appropriate for the cluster with dioxane or dimethylether. The symmetric form of 2-pyridone dimer was confirmed by the observed spectra, as well as the ab-initio calculation. A clear correlation between the observed frequency shifts of the NH stretching vibrations and the calculated NH¯O hydrogen-bond angles was obtained indicating that the hydrogen-bond angle distortion reduces the local hydrogen-bond strength. Also it was found the blue shifts of the origin bands of the S 1 ←S 0 electronic transition strongly depends on the type of the cluster structures.

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“…Recently, we reported on the results of the online monitoring of emulsions with no pretreatment using multiphoton ionization time-of-flight mass spectrometry (MPI-TOFMS). [15][16][17][18] MPI-TOFMS has several advantages, such as spectroscopic selectivity and robustness, [19][20][21][22][23][24][25] and several applications have been reported such as online monitoring of the environment.…”

Section: Introductionmentioning

confidence: 99%

A Quantitative Analysis of an Oil Component in an Emulsion by Multiphoton Ionization Mass Spectrometry

Fukaya

Uchimura

2017

ANAL. SCI.

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Resonance enhanced multiphoton ionization spectroscopy for detection of azabenzenes in supersonic beam mass spectrometry

Cited by 65 publications

References 38 publications

Photoionization Spectroscopy of Nucleobases and Analogues in the Gas Phase Using Synchrotron Radiation as Excitation Light Source

Photoionization Spectroscopy of Nucleobases and Analogues in the Gas Phase Using Synchrotron Radiation as Excitation Light Source

Vibrational spectroscopy of 2-pyridone and its clusters in supersonic jets: Structures of the clusters as revealed by characteristic shifts of the NH and C=O bands

A Quantitative Analysis of an Oil Component in an Emulsion by Multiphoton Ionization Mass Spectrometry

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