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Fourier transform spectroscopy
About: Fourier transform spectroscopy is a research topic. Over the lifetime, 5418 publications have been published within this topic receiving 134133 citations.
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TL;DR: The sensitivity of gas chromatography/Fourier transform infrared spectroscopy (GC/FT-IR) may be improved by use of small bore gold-coated glass gas cells.
Abstract: The sensitivity of gas chromatography/Fourier transform infrared spectroscopy (GC/FT-IR) may be significantly improved by use of small bore gold-coated glass gas cells. This note describes the method of preparing internally gold-coated glass or quartz tubes for GC-IR applications.
54 citations
TL;DR: In this article, a Fourier transform infrared study of the vibrational spectrum of Si2C produced by vaporizing mixtures of silicon and carbon‐12 or carbon‐13 and quenching the products in Ar at 13 K has confirmed a previously observed vibration at 1188.4 cm−1 as the ν‘3(b2), antisymmetric Si-C stretching mode, and resulted in the identification of a new vibration at 839.5 cm− 1 as the symmetric Si−Si stretching fundamental.
Abstract: A Fourier transform infrared study of the vibrational spectrum of Si2C produced by vaporizing mixtures of silicon and carbon‐12 or carbon‐13 and quenching the products in Ar at 13 K has confirmed a previously observed vibration at 1188.4 cm−1 as the ν‘3(b2), antisymmetric Si–C stretching mode, and resulted in the identification of a new vibration at 839.5 cm−1 as the ν1(a1), symmetric Si–Si stretching fundamental. No bending mode has been observed; however, the identification of an absorption at 1354.8 cm−1 as the ν‘2(a1)+ν3(b2) combination band is proposed. The results are confirmed by 13C, 29Si, and 30Si isotopic data and are in excellent agreement with the predictions of ab initio calculations carried out by Rittby in collaboration with this work. Force constant adjustment calculations confirm the ground state geometry as a floppy, bent symmetrical structure.
54 citations
54 citations
TL;DR: The Driven Equilibrium Fourier Transform (DEFT) technique for signal enhancement in pulsed 13C magnetic resonance spectroscopy has been investigated for several small 60-enriched molecules.
54 citations
TL;DR: In this paper, the use of a high-resolution Fourier transform spectrometer was used to analyse the laser-induced fluorescence from a ring dye laser, which allowed the first time of the first use of such a high resolution Fourier Transform Spectrometer.
53 citations