Abstract
This chapter outlines the experimental setup, denoted “curry-jet”, as well as the development and layout of a heatable nozzle, required to prepare longer alkanes in the gas phase. Furthermore, the influence of measurement conditions on Raman jet spectra is discussed.
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Notes
- 1.
Higher temperatures would lead to degeneration of sealing Viton® O-rings.
- 2.
The Hagen-Poiseuille equation states that the volume transport of a laminar flow through a cylindrical pipe is proportional to the 4th power of the pipe’s radius.
- 3.
Other than the He/CF\(_4\) carrier gas mixture which was prepared in a vacuum line, SF\(_6\) and C\(_2\)F\(_6\) were mixed to helium in the reservoir preceding the brass saturator. This procedure does not allow to set the concentration accurately. The admixture of SF\(_6\) and C\(_2\)F\(_6\) was thus adjusted based on observed band intensities and calculated scattering cross-sections (from harmonic frequency calculations with Gaussian 09 [22] on the B3LYP/6-311++G(d,p) level) to yield concentrations comparable to the helium/tetrafluoromethane mixture (\(\approx \)4 %).
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Lüttschwager, N.O.B. (2014). Experimental. In: Raman Spectroscopy of Conformational Rearrangements at Low Temperatures. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-08566-1_3
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