Raman spectra of ZXY3 compounds: A dry-lab spectral analysis experiment

Simple and efficient method for detection of traces of rare earth elements in minerals by raman spectroscopy instrumentation

“…This experimental technique is now within the reach of most undergraduate institutions. In addition, its similarity and complementarity with conventional infrared spectroscopy (both are commonly termed vibrational spectroscopy) facilitates spectral interpretation, indicating that Raman spectroscopy as a very efficient tool for educational purposes [27][28][29][30].…”

Vibrational Spectroscopy of the CCl4 v1 Mode: Theoretical Prediction of Isotopic Effects

“…The CCl 4 sample is arranged in the 180° backscattering geometry and a separate temperature control unit is employed to cool out the vibrational hot bands. Many Raman spectrometer set-ups are feasible for this experiment, to include home-built and other commercial-grade instruments. , Arranging the sample in a 90° scattering geometry is possible, although the scattering signal may be weaker. For the undergraduate laboratory lacking in instrumental resources the theoretical prediction of the ν 1 fine structure and the discussion that follows is achievable, instructive, and only requires reference to the spectra included in this paper and Supporting Information.…”

“…Understandably, many undergraduate chemistry departments may not have access to Raman spectrometers due to their cost or may not have a Raman expert on the faculty. This Journal has made available several Raman spectroscopy dry laboratories − and less-expensive, home-built spectrometer alternatives to overcome this educational gap. To our knowledge, this paper is the first to extensively detail the isotopic effect and contributions due to hot bands in CCl 4 observable in the high resolution (<2 cm –1 ) symmetric stretch peak for the undergraduate laboratory.…”

An Interactive Dry Lab Introduction to Vibrational Raman Spectroscopy Using Carbon Tetrachloride

“…Up till now, dry labs for Raman spectroscopy have dealt with a particular aspect of the technique and have been limited by the need to copy spectra from textbooks or journal articles. Examples of this approach can be found in the two Raman dry labs published in this Journal: one interpreting the Raman spectra of ZXY 3 compounds (11) and the other using pure rotational Raman spectroscopy for determining bond distances in CO 2 (12). While these provide excellent paper-based physical chemistry labs, there is no interactivity, and calculations involving the data are based on approximations of intensities and peak positions.…”