Abstract: In this paper, the temperature dependence of the saturated vapor pressure of fluorosubstituted phthalocyanines with substituents in non-peripheral positions of the macroring, viz. MPcF4-np, M=Cu, Fe, Co, VO, was investigated by the Knudsen effusion method with mass spectrometric registration of the gaseous phase composition. The standard thermodynamic parameters ΔH°T and ΔS°T of the sublimation process of these compounds were determined. The results were compared with the vapor pressure of the corresponding MPcF4-p analogs bearing F-substituents in the peripheral positions. It was shown that the volatility decreased in the order of VOPcF4-np>CoPcF4-np ~ CuPcF4-np ~ FePcF4-np>ZnPcF4-np, which correlated with the increase in their crystal lattice energy in the same order. The volatility of most MPcF4-np (M=Cu, Zn, Co, VO) was lower than that of MPcF4-p. The results were analyzed from the point of view of crystal packing and intermolecular interactions in the crystal.

Cite: Bonegardt D.V. , Trubin S.V. , Sukhikh A.S. , Klyamer D.D. , Basova T.V.
Vapor pressure of tetrasubstituted metal phthalocyanines bearing fluorine substituents in non-peripheral positions
Journal of Porphyrins and Phthalocyanines. 2024. V.28. P.618-625. DOI: 10.1142/s1088424624500330 WOS Scopus OpenAlex

Dates:

Submitted:	Apr 29, 2024
Accepted:	Jun 7, 2024
Published online:	Jul 9, 2024
Published print:	Oct 31, 2024

Identifiers:

Web of science:	WOS:001265779400001
Scopus:	2-s2.0-85198342345
OpenAlex:	W4399737288

Citing: Пока нет цитирований

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