Microlab expert software

To analyze the samples in the spectral range from 4000 to 750 cm⁻¹, an IR Fourier spectrophotometer Agilent Cary 630 (Agilent, Santa Clara, CA, USA) with a diamond ATR accessory was used. The resolution is less than 2 cm⁻¹, the correctness of the wavenumber is 0.05 cm⁻¹, and the reproducibility of the wavenumber is 0.005 cm⁻¹. The thickness of the absorbing layer is 1.5 nm (the clamping device guarantees the setting of optimal and reproducible pressure). To confirm the presence of characteristic bonds in the synthesized and crystallized complexes, L-Methionine and sodium methionine were selected as controls and investigated under the same measurement conditions. The standard Agilent MicroLab Expert software was used to control the device, measure the data, and evaluate the quality of the obtained spectra; in this case, the FTIR spectra were visualized in the wave number, cm⁻¹—transmission, % coordinates.

The analysis in the middle IR region was carried out using an IR Cary 630 Fourier spectrometer (Agilent Technologies, USA) with an ATR attachment with a diamond crystal. The instrument control, data measurement, and processing were performed with Agilent MicroLab Expert software. The results of terahertz spectrometry were obtained on an IR Fourier spectrometer Vertex 70 (Bruker, Germany), which was equipped with a vacuum pump and a mercury lamp.