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3d–4f complexes derived from the chiral amine-phenol ligand with slow magnetic relaxation, [Ni2LnL2(ClO4)3(H2O)4] and [Ni2Ln2L2(CO3)2(NO3)2]·(CH3OH)2(Ln= Tb, dy)

3d–4f complexes derived from the chiral amine-phenol ligand...

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中国化学会2019年中西部地区无机化学化工学术研讨会

作者： Jun-Jie Hu Jia-Li Zhang Wen-Hai Yi Sui-Jun Liu He-Rui Wen School of Chemistry and Chemical Engineering Jiangxi University of Science and Technology

Since the weak magneto-chiral dichroism phenomenon of chiral paramagnetic compound was discovered,the chiral magnets have attracted great interests for their potential application as developing advanced data storage components,molecular spintronic devicesand quantum *** order to further investigate the magnetic properties of the chiral 3d-4f system,we synthesized four pairs of chiral Ni –Ln heterometallic complexes [NiLn((R, R)-L)(ClO4)(HO)](Ln= dy(1), Tb(3)) and [NiLn((R, R)-L)(CO)(NO)]·(CHOH) (Ln=dy (5),Tb(7),(HL=((R,R)-or (S,S)-cyclohexane-1,2-diylbis(azanediyl))-bis(methylene))-bis(2-methoxyphenol))).complexes 1-4 are crystallized in an orthorhombic C222 space group,central Ln ions is surrounded by eight oxygen atoms which constitute biaugmented trigonal prism (C).complexs 5-8 are crystallized in the triclinic P1 space *** alternating current (ac) magnetic susceptibilities of 1 showed that both the in-phase (χ′) and out-of-phase (χ″) are frequency-and temperature dependent with a series of frequency-dependent peaks for theχ″,which is the typical features of field-induced slow magnetic relaxation phenomena,with U=24.67 K andτ=1.67×10 *** 5 also exhibits singlemolecule magnet behavior when the field is applied at 2000 Oe,with U=15.05 K andτ=6.37×10 s.

关键词： Chirality single-molecule magnet 3d-4f complex chiral magnets

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Bifunctional ZnⅡ-4f complexes based on amine-phenol ligand with field-induced slow magnetic relaxation and luminescence properties

Bifunctional ZnⅡ-4f complexes based on amine-phenol ligand ...

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中国化学会第十届全国无机化学学术会议

作者： Jia-Li Zhang Jun-Jie Hu Wen-Hai Yi Kai Yang Sui-Jun Liu He-Rui Wen School of Chemistry and Chemical Engineering Jiangxi University of Science and Technology

3d-4f polynuclear Coordination Clusters (CCs) have attracted increasing interest as a result of their extraordinary and fascinating structural characteristics,as well as their potentially applicable magnetic and photo-physical ***,the great efforts have been focused on the investigations of magneto-luminescent molecular materials,and particularly on the possible synergy between these properties that may be used for various ***,three novel Zn-4f complexes,namely,[LnZnL·(HO)]·(ClO)·3HO{Ln=dy (1),Tb (2),Er (3),HL=6,6’-(((ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(azanediyl))bis(2-methoxyphenol)}were synthesized and characterized *** crystallized in centrosymmetric triclinic space group *** 1,2 display stronger fluorescent emissions,which are typical narrow emission bands of lanthanide *** investigation shows that complex 1 exhibits antiferromagnetic properties and weak field-induced slow magnetic relaxation behavior while the fitting of Arrhenius law gives energy barrier Ueff=27.91 ***,complex 1 may be as a potential magneto-fluorescent bifunctional molecular material.

关键词： 3d-4f complex Slow magnetic relaxation Luminescence Crystal structure

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Synthesis,Structure and Magnetic Properties of a Cage-like Cu6Gd6 Compound

Synthesis,Structure and Magnetic Properties of a Cage-like C...

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中国化学会第八届全国配位化学会议

作者： Bingbing Guo Hua Yang dacheng Li Jianmin dou Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical Engineering Liaocheng University Institute of BioPharmaceutical Research Liaocheng University

The lanthanide-based SMMs are attracting the growing attentions due to the intrinsic strong spin-orbital coupling and magnetic anisotropy of lanthanide(Ⅲ) ions[1].Their promising high anisotropic energy barrier(U) for the magnetization reversal and the blocking temperature(T)play a key role in their potential application in the high-density information storage[2].Based on these considerations,we designed the reaction of 2-hydroxy-3-carboxy-5-chlorobenzaldehyde oxime(H hccbdo) with gadolinium nitrate and copper acetate and obtained a novel dodecanuclear 3 d-4 f complex[Cu Gd(Hhccbdo)(hccbdo)(dMf)(H O)].The coplanar four Gd ions are ligated with carboxyl groups of ligands and form a 16-MC-4 cyclic structure with[Gd-O-C-O]repeating *** 16-MC-4 rings assembled into a rare cage-like *** copper ions are located the outside of the cage(fig.1).Magnetic susceptibility reveals the ferromagnetic coupling between the metal ions of complex(fig.2 a),and further AC magnetic data indicates the slow magnetic relaxation,a typical of single-molecule magnets behavior(fig.2 b).

关键词： 2-Hydroxy-3-Carboxy-5-Chloro-Benzaldehyde Oxime 3d-4f complex Slow Magnetic Relaxation

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