Film materials based on non-covalent hybrids of two-dimensional graphene oxide nanosheets with the spin-crossover molecular complex salt [Et4N][FeIII(5Cl-thsa)2]

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Russian Chemical Bulletin Pub Date : 2025-03-27 DOI:10.1007/s11172-025-4531-8

N. G. Spitsyna, M. A. Blagov, A. I. Dmitriev, N. N. Dremova, M. V. Zhidkov, S. V. Simonov, A. S. Lobach

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引用次数: 0

Abstract

We consider the preparation of film hybrid composite materials formed by a self-assembly process via the non-covalent interactions of surface functional groups and graphene domains of graphene oxide (GO) nanosheets with anionic spin-crossover complexes [Fe^III(5Cl-thsa)₂]⁻ (5Cl-thsa²⁻ is 5-chlorosalicylaldehyde thiosemicarbazone) and cations [Et₄N]⁺ of the intercalant salt [Et₄N][Fe^III(5Cl-thsa)₂] (1). The introduction of salt 1 into the interlayer space of the GO nanosheets was observed for the first time, followed by the subsequent formation of a layered GO-1 hybrid material film, while the reversible thermally induced spin transition was maintained. The GO-1 hybrid material films were characterized by scanning electron microscopy, energy dispersive analysis, IR and Raman spectroscopy, and powder X-ray diffraction; their magnetic properties were studied. Comparative studies of the magnetic properties of complex 1 and the GO-1 hybrid material film showed the influence of the GO nanosheet matrix on the nature and completeness of the spin transition of intercalant 1. The semi-transition temperature of the GO-1 hybrid material (T_½ = 228 K) is shifted by ∼20 K towards the high-temperature region compared to that of the starting salt 1 (T_½ = 208 K).

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来源期刊

Russian Chemical Bulletin 化学-化学综合

CiteScore

2.70

自引率

47.10%

发文量

257

审稿时长

3-8 weeks

期刊介绍： Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections: General and Inorganic Chemistry; Physical Chemistry; Organic Chemistry; Organometallic Chemistry; Chemistry of Natural Compounds and Bioorganic Chemistry.