Synthesis and properties of polyvinylpyrrolidone films containing the photomagnetic chromium (tris)oxalate complex.

Uniform composites of polyvinylpyrrolidone with the paramagnetic chromium (tris)oxalate complex (CHNO)Cr(CO)·11.56 HO and cation of quinoline spiropyran of the indo-line series were obtained for the first time. Their photochemical properties and static and superhigh-frequency dynamic magnetic characteristics were studied. The change in the ESR spectra under UV irradiation in films of polyvinylpyrrolidone containing photochromic paramagnetic was observed. [ABSTRACT FROM AUTHOR]