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D. Müller, C. Knoll, M. Seifried, P. Weinberger, M. Reissner:
"Using Mössbauer studies and various other methods for the determination of the spin transition properties of Iron(II) Spin-Crossover Compounds";
Poster: ICAME 2015 - The 33rd International Conference on the Application of the Mössbauer Effect, Hamburg; 13.09.2015 - 18.09.2015; in: "Conference Programme", Hamburg (2015), S. 108.

Aiming for a rational design of iron(II) spin crossover compounds to be useful in technological applications incorporated in sensing or data storage devices there is the need to establish robust structure-property relationships. Despite of first successes within series of homologous triazoles [1] a generalized structure-property relationship is still lacking. In the quest to overcome this problem comparative studies on series of homologous mono- and polynuclear iron(II) spin-crossover compounds have been performed using the extremely versatile building blocks of N1-functionalized tetrazoles as ligands [2-4]. As the iron(II) spin transition properties are governed by a subtle interplay between structural and electronic factors, the systematic variation of ligands can help to derive trends and building principles to achieve the final goal of a rational design. Variable temperature 57Fe-Mössbauer studies supported by magnetic, structural and spectroscopic measurements allow for the unambiguous determination of the spin state of the iron(II) spin-crossover compounds presented.

Mössbauer spectroscopy, iron(II), spin crossover

http://publik.tuwien.ac.at/files/PubDat_240768.pdf