Cadmium Complexes—A Novel Family in the Coordination Chemistry of 1,2-bis(arylimino)acenaphthenes
Chekhov E.V. Bakaev I.V. Gukova A.K. Shaposhnikov N.O. Komlyagina V.I. Appazova S. Diyarova B. Darmagambet K. Appazov N. Romashev N.F. Gushchin A.L.
May 2025Multidisciplinary Digital Publishing Institute (MDPI)
Inorganics
2025#13Issue 5
This work presents the synthesis routes for the first representatives of cadmium complexes based on 1,2-bis(arylimino)acenaphthene (Ar-bian). The reaction of CdCl2 with bis-(2,4,6-trimethylphenylimino)acenaphthene (tmp-bian) in a 1-to-1 molar ratio led to a dimeric complex [Cd2(tmp-bian)2Cl2(µ-Cl)2] (1). Further treatment of complex 1 with silver triflate as a chloride-eliminating agent, followed by the addition of one equivalent of tmp-bian, resulted in the formation of a mixture consisting of [Cd2(tmp-bian)2(H2O)4(µ-Cl)2](OTf)2 (2) and [Cd(tmp-bian)2(OTf)2] (3). To obtain complex 3 in its individual form, a reaction of Cd(OTf)2 with two equivalents of tmp-bian was carried out. The characterization of the complexes was conducted through a range of analytical methods, including X-ray diffraction analysis, elemental analysis, as well as IR and 1H NMR-spectroscopies. Redox properties of 1 and 3 were investigated by means of cyclic voltammetry. Cyclic voltammograms revealed irreversible reduction processes centered on the tmp-bian ligand, which were confirmed by quantum chemical calculations.
BIAN ligands , cadmium , complexes , crystal structure , cyclic voltammetry , quantum chemical calculations , X-ray diffraction
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Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russian Federation
Department of Natural Sciences, Novosibirsk State University, Novosibirsk, 630090, Russian Federation
Department of Engineering and Technology, Institute of Engineering and Technology, Korkyt Ata Kyzylorda University, Ayteke bi Street 29A, Kyzylorda, 120014, Kazakhstan
Department of Chemistry, Institute of Natural Sciences, Kazakh National Women’s Teacher Training University, Gogol Street 114/8, Almaty, 050000, Kazakhstan
Nikolaev Institute of Inorganic Chemistry SB RAS
Department of Natural Sciences
Department of Engineering and Technology
Department of Chemistry
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