2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138256Dependence of frequency spectra of the lattice oscillations of organic nano-crystals on temperature is studied at presence of vacancies in structure. In a frequency spectrum a number of additional lines monotonously changing with temperature is observed. Also, the spectrum of the surface oscillations is calculated at temperature change. At the same time, the low-frequency line has non-linear behavior with temperature change.3 pages, 6 figuresSoft Condensed MatterDisordered Systems and Neural NetworksOther Condensed Mattertext