A density functional study of the spin state energetics of polypyrazolylborato complexes of first-row transition metals

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Gruden-Pavlović, Maja
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Stepanović, Stepan
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Perić, M.
​ ​ scopusId Güell Serra, Mireia​ ​
Güell Serra, Mireia
orcId Swart, Marcel​ researcherId Swart, Marcel​ scopusId Swart, Marcel​ ​
Swart, Marcel
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Density Functional Theory (DFT) was used to analyse and explain spin state energetics of first-row transition metals (MnII, FeII, CoII; CrIII, MnIII, FeIII, Co III; MnIV) in polypyrazolylborato complexes. We explored the effects of substitutions at the 3 and 5 positions of the pyrazolyl rings, as well as the influence of Jahn-Teller (JT) distortions on spin-state switching. Although the stabilizations due to JT distortion are sometimes substantial, this does not lead to switching of the spin ground-state. On the other hand, electron withdrawing or donating substituents do lead to significant changes in the spin-crossover (SCO) properties of the investigated complexes ​
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