Magnetic properties of the FeII spin crossover complex in emulsion polymerization of trifluoroethylmethacrylate using poly(vinyl alcohol)

✍ Scribed by Atsushi Suzuki; Motoi Iguchi; Takeo Oku; Motoyasu Fujiwara

• Book ID: 104030611
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 700 KB
• Volume: 183
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1016/j.jssc.2010.02.014

✦ Synopsis

Influence of chemical substitution in the Fe II spin crossover complex on magnetic properties in emulsion polymerization of trifluoroethylmethacrylate using poly(vinyl alcohol) as a protective colloid was investigated near its high spin/low spin (HS/LS) phase transition. The obvious bi-stability of the HS/LS phase transition was considered by the identification of multiple spin states between the quintet (S =2) states to single state (S= 0) across the excited triplet state (S =1). Magnetic parameters of gradual shifts of anisotropy g-tensor supported by the molecular distortion of the spin crossover complex would arise from a Jahn-Teller effect regarding ligand field theory on the basis of a B3LYP density functional theory using electron spin resonance (ESR) spectrum and X-ray powder diffraction.