Tracking the Structural Evolution of 4-Aminobenzoic Acid in the Transition from Solution to the Gas Phase

2020 ◽  
Vol 124 (11) ◽  
pp. 2081-2087 ◽  
Author(s):  
Michael J. Hebert ◽  
David H. Russell
Keyword(s):  
Gas Phase ◽  
Structural Evolution ◽  
Aminobenzoic Acid

Photoelectron Spectroscopy and Theoretical Study of AlnC5-/0 (n = 1-5) clusters: Structural Evolution, Relative Stability of Star-Like Cluster, and Planar Tetracoordinate Carbon Structure

2021 ◽  
Author(s):  
Chao-Jiang Zhang ◽  
Peng Wang ◽  
Xi-Ling Xu ◽  
Hong-Guang Xu ◽  
Weijun Zheng
Keyword(s):  
Gas Phase ◽  
Photoelectron Spectroscopy ◽  
Relative Stability ◽  
Theoretical Study ◽  
Structural Evolution ◽  
Carbon Structure ◽  
Anion Photoelectron Spectroscopy

The AlnC5- (n = 1-5) clusters were detected in the gas-phase and were investigated by mass-selected anion photoelectron spectroscopy. The structures of AlnC5-/0 (n = 1-5) were explored by theoretical...

Phase Characterization and Grain Size Effects of Nanophase Y2O3, ZrO2 and Y2O3-ZrO2 Composites Produced by the Gas-Phase Condensation Technique

1992 ◽  
Vol 286 ◽  
Author(s):  
C. M. Foster ◽  
G. R. Bai ◽  
J. C. Parker ◽  
M. N. Ali
Keyword(s):  
Grain Size ◽  
Raman Scattering ◽  
Gas Phase ◽  
Size Effects ◽  
Structural Evolution ◽  
Deposition Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nanophase Materials ◽  
Phase Characterization

ABSTRACTNanophase (n-) ZrO2 was produced in its pure and partially stabilized form by the gas-phase condensation method. The material was examined by x-ray diffraction and Raman scattering to obtain information on the structural evolution of the material during sintering. Two types of Y2O3 doped ZrO2 nanophase materials were made one by co-deposition of n-Y2O3 and n-ZrO2 in a consecutive manner and the second by mechanically mixing n-Y2O3 and n-ZrO2. We have determined that the co-deposition process is the most effect means of doping the n-ZrO2.

scholarly journals Investigating the Environment-dependent Photophysics of Chlorine Dioxide With Resonance Raman Intensities

1999 ◽  
Vol 19 (1-4) ◽  
pp. 305-309
Author(s):  
Anthony P. Esposito ◽  
Catherine E. Foster ◽  
Philip J. Reid
Keyword(s):  
Excited State ◽  
Gas Phase ◽  
Chlorine Dioxide ◽  
Resonance Raman ◽  
Structural Evolution ◽  
Reaction Dynamics ◽  
Intensity Analysis ◽  
Normal Coordinates ◽  
Raman Intensities ◽  
Asymmetric Stretch

The condensed-phase excited-state reaction dynamics of chlorine dioxide are investigated using resonance Raman intensity analysis. Absolute Raman intensities are measured on resonance with the 2B2–2A2 electronic transition and used to establish the excited-state structural evolution which occurs on the 2A2 surface following photoexcitation. Analysis of the intensities demonstrates that excited-state relaxation occurs along all three normal coordinates; however, only modest evolution is observed along the asymmetric stretch. This limited relaxation stands in contrast to the extensive motion along this coordinate in the gas phase. It is proposed that the initial excited-state structural relaxation serves to define the symmetry of the reaction coordinate and thus the mechanism of Cl production following photolysis of OClO.

Electronic Spectroscopy of Differential Mobility selected Prototropic Isomers of Protonated Para-Aminobenzoic Acid

2021 ◽  
Author(s):  
Neville Coughlan ◽  
Weiqiang Fu ◽  
Mircea Guna ◽  
Bradley Schneider ◽  
Yves Le Blanc ◽  
...  
Keyword(s):  
Gas Phase ◽  
Electronic Spectroscopy ◽  
Aprotic Solvents ◽  
Aminobenzoic Acid ◽  
Differential Mobility

Para-aminobenzoic acid (PABA) was electrosprayed from mixtures of protic and aprotic solvents, leading to formation of two prototropic isomers in the gas phase whose relative populations depended on the composition...

X-ray and micro-Raman analysis of nanophase ZrO2 and Y2O3–ZrO2 produced by the gas-phase condensation technique

1993 ◽  
Vol 8 (8) ◽  
pp. 1977-1982 ◽  
Author(s):  
C.M. Foster ◽  
G.R. Bai ◽  
J.C. Parker ◽  
M.N. Ali
Keyword(s):  
Raman Scattering ◽  
Gas Phase ◽  
Effective Means ◽  
Structural Evolution ◽  
Deposition Process ◽  
X Ray Diffraction ◽  
Raman Analysis ◽  
X Ray ◽  
Condensation Method

Nanophase (n-) ZrO2 was produced in its pure and partially stabilized form by the gas-phase condensation method. The material was examined by x-ray diffraction and Raman scattering to obtain information on the structural evolution of the material during sintering. Two types of Y2O3-doped ZrO2 nanophase material were made: one by co-deposition of n-Y2O3 and n-ZrO2 in a consecutive manner and the second by mechanically mixing n-Y2O3 and n-ZrO2. We have determined that the co-deposition process is the most effective means of doping the n-ZrO2.

Structural Evolution of Gas-Phase Coinage Metal Clusters in Thiolate Self-Assembled Monolayers on Au

2012 ◽  
Vol 116 (42) ◽  
pp. 22602-22607 ◽  
Author(s):  
Leila Costelle ◽  
Minna T. Räisänen ◽  
Jennifer T. Joyce ◽  
Christophe Silien ◽  
Leena-Sisko Johansson ◽  
...  
Keyword(s):  
Gas Phase ◽  
Metal Clusters ◽  
Structural Evolution ◽  
Self Assembled Monolayers ◽  
Coinage Metal ◽  
Assembled Monolayers ◽  
Self Assembled
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