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P. Weinberger:
"Elucidation of the influence of steric and electronic factors on the spin transition behaviour of Fe(II) spin-crossover compounds";
Vortrag: Invited talk, Aston University Birmingham (UK) (eingeladen); 21.04.2015.

Despite of the existence of rare predictive models, e.g. for 1D chain type triazole-based Fe(II) coordination polymers, it is still impossible to predict the spin transition behaviour of almost any new spin-crossover (SCO) compound. But within a series of homologue ligands a systematic variation may elucidate the impact of steric and/or electronic factors upon the spin transition properties such as the spin transition temperature T½ and the abruptness of the transition. A comparative study on mononuclear as well as polynuclear complexes based on the extremely versatile building block system of N1-substituted tetrazole ligands sheds light on these factors governing the spin transition properties. Examples of the impact of the spacer chain length within the class of alpha-omega-ditetrazolyl-alkanes shows dramatic changes from a rather flexible 1D chain-type to a more rigid 1D chain-type and a very rigid 3D threefold interpenetrated coordination polymer and its consequences for the spin crossover behaviour.

Fe(II), spin crossover

http://publik.tuwien.ac.at/files/PubDat_238457.pdf