Ln-Pt electron polarization effects on the magnetic relaxation of heterometallic Ho- and Er-Pt complexes.

Ln-Pt electron polarization effects on the magnetic relaxation of heterometallic Ho- and Er-Pt complexes.

Dalton transactions (Cambridge, England : 2003) (2018-09-29)

Takefumi Yoshida, David C Izuogu, Hai-Tao Zhang, Goulven Cosquer, Hitoshi Abe, Wolfgang Wernsdorfer, Brian K Breedlove, Masahiro Yamashita

PMID30265262

摘要

Heterometallic Ln-Pt complexes, with the formula [Ln2Pt3(H2O)2(SAc)12] (Ln = Ho(1), Er(2); SAc = thioacetate), were synthesized. From natural bond orbital (NBO) and local orbital locator (LOL) analyses and X-ray absorption fine structure (XAFS) measurements, it was clear that the Ln-Pt interactions or electron polarization occurred. Butterfly-type hysteresis was observed for both 1 and 2. 1 and 2 underwent field-induced slow magnetic relaxation up to 4 K. These magnetic properties were induced by Ln-Pt electron polarization.