Electro‐Conductive Single‐Molecule Magnet Composed of a Dysprosium(III)‐Phthalocyaninato Double‐Decker Complex with Magnetoresistance

Abstract

A one‐dimensional (1D) arrangement of an unsubstituted partially oxidized Dy3+ double‐decker complex, [DyPc2]Ix (Pc=phthalocyaninato, I=iodide; 1.93<x<2.26) (1), was obtained by using electro‐oxidation and chemical oxidation. In 1, the Pc ligands were partially oxidized, and I3− ion was present as a counter ion. From the results of spectrophotometric analysis on 1, the π radicals were delocalized in a 1D column and behaved as a conductor even at low‐temperatures. Since conductivity was observed at temperatures lower than the blocking temperature (TB), magnetoresistance (MR) effects corresponding to a magnetic hysteresis of single‐molecule magnet (SMM) were observed when the galvanomagnetic characteristics were investigated at 2.2 K.

Combined Experimental and Ab Initio Methods for Rationalization of Magneto-Luminescent Properties of YbIII Nanomagnets Embedded in Cyanido/Thiocyanidometallate-Based Crystals

“…Therefore, finding the means of doing so is of high interest in the field. 18 − 20 Lately, the ideas of luminescent, 21 conducting, 22 or multifunctional SMMs 23 , 24 have emerged, and the systems linking slow magnetic relaxation with porosity 25 , 26 or photochromism 27 were recognized. Lanthanide SMMs were lately applied in optical thermometry, 28 , 29 while their emission spectra are usually used to perform magneto-optical correlations.…”

Electro‐Conductive Single‐Molecule Magnet Composed of a Dysprosium(III)‐Phthalocyaninato Double‐Decker Complex with Magnetoresistance

“…For method B, tetrabutylammonium triiodide (TBAI 3 ) was used as the oxidizing agent, and a suitable sample was obtained overnight. A structure of 1 [46] is shown in Figure 1. Since the Y 3+ complex [YPc 2 ]I x (2) is isostructural, its structure [46] is described in the supporting information (Figures S1, S2 and Table S1).…”

“…A structure of 1 [46] is shown in Figure 1. Since the Y 3+ complex [YPc 2 ]I x (2) is isostructural, its structure [46] is described in the supporting information (Figures S1, S2 and Table S1).…”

“…There are strong 1D magnetic dipoledipole interactions between the Dy 3+ ions in 1. [46] high-lighting the intermolecular twist angle of Pc ligands and the distance along the caxis. H atoms are omitted for clarity.…”

“…Figure 1. a) Method (A: electro-oxidation) and (B: chemical oxidation) for the synthesis of 1. b) Top and side views of 1,[46] high-lighting the intermolecular twist angle of Pc ligands and the distance along the caxis. H atoms are omitted for clarity.…”