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A Stable Dysprosium(iii) Complex With a Terminal Fluoride Ligand Showing High Resolution Luminescence and Slow Magnetic Relaxation

Bo-Kai Ling, Yuan-Qi Zhai, Junbo Han, Tian Han, Yan-Zhen Zheng

Dalton Trans. 2020 Jun 7;49(21):6969-6973.

PMID: 32432247

Abstract:

An air-stable dysprosium(iii) complex, [C(NH2)3]4[DyF(piv)4](piv)2 (piv = pivalate), with a terminal fluoride ligand protected by forming extensive hydrogen bonds with peripheral guanidiniums has been isolated. Though the magnetic data failed to determine the energy barrier for the magnetic reversal (Ueff) accurately, the fine emission spectrum of the 4F9/2→6H15/2 transition at 4.2 K and ab initio calculations reveal that the Ueff is about 376(20) K, which is among the highest for high-coordinate (coordination numbers ≥ 9) lanthanide mononuclear magnets.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP13569807 Dysprosium(III) fluoride Dysprosium(III) fluoride 13569-80-7 Price
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