Cobalt(II) Complexes Based on Benzylmalonate Anions Exhibiting Field-Induced Single-Ion Magnet Slow Relaxation Behavior

Autor: Ekaterina Zorina-Tikhonova, Anna Matyukhina, Ivan Skabitskiy, Maksim Shmelev, Denis Korchagin, Konstantin Babeshkin, Nikolay Efimov, Mikhail Kiskin, Igor Eremenko
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Crystals, Vol 10, Iss 12, p 1130 (2020)
Druh dokumentu: article
ISSN: 2073-4352
DOI: 10.3390/cryst10121130
Popis: The reaction of (NBu4)2Bzmal (where Bzmal2− is benzylmalonate dianion) with Co(OAc)2∙4H2O gives the [Co(Bzmal)(EtOH)(H2O)]n 2D-polymer (1). The addition of 2,2′-bipyridine (bpy) to the starting system results in the [Co(Bzmal)(bpy)2]·H2O·EtOH molecular complex (2). Their molecular and crystal structures were analyzed by single-crystal X-ray crystallography. An analysis of the static magnetic data supported by the SA-CASSCF/NEVPT2 calculations revealed the presence of easy-plane magnetic anisotropy in both complexes. The AC susceptibility data confirm that both complexes show a slow field-induced (HDC = 1000 Oe) magnetic relaxation behavior.
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