Vibrational spectroscopy on iron(II) spin-crossover complexes with 4-substituted 2,6-bis(benzimidazol-2′-yl)pyridine
✍ Scribed by M. Enamullah; W. Linert; V. Gutmann
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 494 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0924-2031
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## Abstract Investigation of the coordination behavior of 2,6‐bis(3‐pyrazolyl)pyridine–bis(thiocyanato)iron(II) towards bridging ligands led to the discovery of a novel dinuclear complex showing spin‐crossover. Chemical and structural characterization and a first report of physical properties are p
The 'Tz% 'A, spin transition in [ Fe( bpp),][ BF412 (bpp= 2,6-bis( pyrazol-3-yl)pyridine) is abrupt and complete and shows hysteresis with the transition temperatures r,r = 173 K and T,t = 183 K. Rapid cooling of the sample causes the freezing-in of metastable quintet state species at low temperatur
The X-Ray structures of the 1:l copper(I1) complexes with racemic and optically active (+)-(R,R)-(2,6bis(pyrro1idin-2-y1)pyridine ((+)-bpp; (+)-I) were determined. Whereas the perchlorate 1 of the racemic complex contains the monomeric units with perfect C, symmetry, the sulfate of the optically act