Heteroleptic β -Diketonate Fe 3+ Complex: Spin-Crossover and Optical Characteristics. - Starichenko, Denis V.; Vorobeva, Valerya E.; Gruzdev, Matvey S.; Chervonova, Ulyana V.; Ksenofontov, Alexander A.; Volegov, Aleksey S.; Yatsyk, Ivan V. (Inorganics, 2025)