Infrared spectroscopy of (CO2)N nanoparticles (30<N<14500) flowing in a uniform supersonic expansion

Abstract

Articles you may be interested inAnalytic Morse/long-range potential energy surfaces and predicted infrared spectra for CO-H2 dimer and frequency shifts of CO in (para-H2) N N = 1-20 clusters

Direct FTIR high resolution probe of small and medium size Arn(CO2)m van der Waals complexes formed in a slit supersonic expansion

“…The wavelength position of the absorption continuum obtained with argon as carrier gas, however, does not match those attributed to pure nanometric (CO 2 ) n aggregates. The comparison was carried out in the size interval 30 [ n [ 10 6 [30,31] and extended to very small n values (3 [ n [ 30). In this latter case, the clusters were formed in an expansion of helium (see experimental conditions #1 and trace 1 in Fig.…”

High-resolution infrared spectroscopy of carbon dioxide dimers, trimers, and larger clusters

“…Dimers in the 1 /2 2 spectral region have also been studied by Raman spectroscopy in a supersonic jet [17][18][19]. Larger clusters have been observed in jets [20][21][22] and cryogenic cells [23][24][25] by means of infrared spectroscopy and other techniques [26].…”

Single photon ionization of van der Waals clusters with a soft x-ray laser: (CO2)n and (CO2)n(H2O)m

“…IR and Raman spectroscopies have demonstrated crystalline structures in even larger clusters. [11][12][13] Scanning electron microscope experiments have shown octahedral forms for CO 2 crystals of ϳ0.1 m diameter.…”

“…1 Many experiments employing supersonic expansion coupled with mass spectroscopic detection have been conducted in order to study monomeric and clustered CO 2 structure and behavior. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] Spectroscopic and photochemical properties of ͑CO 2 ͒ n should be related to cluster structure.…”