Matrix isolation Fourier transform infrared spectrometry of polycyclic aromatic hydrocarbons

Abstract

The application of matrix isolation Fourier transform infrared spectroscopy to qualitative and quantitative analysis of polycyclic aromatic hydrocarbons (PAH) Is described. Samples in nitrogen matrices at ~15 K are produced by mixing the PAH vapors effusing from a Knudsen cell with a large excess of nitrogen gas. From the results obtained with nearly 20 PAH,

Structure–mutagenicity relationships and energies of 1-, and 2-nitrotriphenylenes

“…1A represents the numbering scheme of optimized structure of triphenylene used in the text. Experimental and theoretical studies of polycyclic aromatic hydrocarbons at various levels and basis sets have been done including triphenylenes [34][35][36][37]. Noteworthy are calculations on triphenylene done with the B3LYP functional using basis sets incorporating no/or less electron correlation such as 4-21G, 6-31G, 6-31G* and 6-31G** [35].…”

Condensed Aromatics. Part XV. Chrysene

“…The Raman spectrum was recorded by Schräder et al [13], who used a rudimentary part of the chrysene spectrum for the illustration of Raman laser-micro techniques. Mamantov et al [14] have reported the matrix isolation Fourier transform infrared spectra of seventeen hydrocarbons. The investigation included chrysene, for which only the four strongest bands are reported.…”

Fluorescence line narrowing spectrometry of polycyclic aromatic hydrocarbons in organic glasses

“…When these techniques are used as chromatographic detectors, the line rich spectra become an asset, facilitating the identification and further differentiation of partially separated species (4,16,21 (21). Likewise, Mi-Raman is reported to have detection limits on the order of nanograms (15).…”