The Branched Schiff Base Cationic Complexes of Iron(III) with Different Counter-Ions

Symmetry

Ulyana Chervonova¹  Matvey Gruzdev¹  Valerya Vorobeva² 

[1] G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, 153045 Ivanovo, Russia;Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences, 420029 Kazan, Russia;

关键词: iron(III) complex;    Schiff base;    liquid crystal;    mesophase;    Langmuir monolayers;   

DOI  :  10.3390/sym14061140

来源: DOAJ

【 摘 要 】

The Fe(III) complexes of branched asymmetric dendrimers were obtained by a one-step reaction as the second-generation architectures. Mesomorphic behavior was found for complexes with PF₆⁻ and BF₄⁻ counter-ions. To obtain knowledge about the existence of HS and LS fractions of iron(III) ion and their evolution with temperature, EPR methods were used. It was demonstrated that compounds contain one low-spin (LS, S = 1/2) and two HS-spin (HS, S = 5/2) of Fe(III) centers and are packed into two magnetic sub-lattices. A floating layers of Fe(III) complexes and Langmuir–Blodgett films on their base were formed and investigated in the presence of a magnetic field.

【 授权许可】

Unknown