В журнале Dalton Transactions (IF 4,39) опубликована статья с участием сотрудников Института П.М. Калетиной (мнс ЛМР), к.х.н. И.К. Шундриной (снс ЛЭАСМ, снс ГТ) и д.ф.-м.н., проф. Е.Г. Багрянской (директор НИОХ):
Hybrid iron(ii) phthalocyaninatoclathrochelates with a terminal reactive vinyl group and their organo-inorganic polymeric derivatives: synthetic approaches, X-ray structures and copolymerization with styreneSemyon V. Dudkin, Alexander S. Chuprin, Svetlana A. Belova, Anna V. Vologzhanina, Yan V. Zubavichus, Polina M. Kaletina, Inna K. Shundrina, Elena G. Bagryanskaya and Yan Z. Voloshin
Dalton Trans., 2022, V. 51, Issue 14, Pages 5645-5659
First published on 09 Mar 2022
Hybrid metallo(IV)phthalocyaninate-capped tris-dioximate iron(II) complexes (termed as “phthalocyaninatoclathrochelates”) with non-equivalent apical fragments and functionalized with one terminal reactive vinyl group were prepared for the first time using three different synthetic approaches: (i) transmetallation (capping group exchange) of the appropriate labile boron,antimony-capped cage precursors, (ii) capping of the initially isolated reactive semiclathrochelate intermediate, and (iii) direct one-pot template condensation of their ligand synthons on the iron(II) ion as a matrix. The obtained polytopic cage complexes were characterized using elemental analysis, 1H NMR, MALDI-TOF MS and UV–vis spectra, and the single-crystal X-ray diffraction experiments. One of the obtained vinyl-terminated iron(II) phthalocyaninatoclathrochelates and its semiclathrochelate precursor were tested as monomers in a copolymerization reaction with styrene as the main component. These vinyl-terminated (semi)clathrochelate iron(II) complexes were found to be successfully copolymerized with this industrially important monomer, affording the intensely colored copolymer products. Because of a low solubility of the tested zirconium(IV) phthalocyaninate-capped tris-nioximate monomer in styrene as a solvent, a molar ratio of 1 : 500 was used. The obtained copolymer products and the kinetics of their formation were studied using GPC, FTIR, UV–vis, TGA and DSC methods. Even at such a low concentration of the Fe,Zr-binuclear metallocomplex component, an increase in the rate of the UV-light degradation of the organo-inorganic products, as well as in their thermal stability, was observed.