Two heterometallic {CoII6LnIII2} (Ln = Dy, Ho) clusters with local symmetry exhibiting single-molecule magnet behaviours

被引：1

作者：

Zhao, Xiaoqing ^{[1
]}

Zhao, Tianhao ^{[1
]}

Wang, Yiyan ^{[1
]}

Zhou, Jing ^{[1
]}

机构：

[1] Sichuan Agr Univ, Coll Sci, Yaan 625014, Peoples R China

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 2023年 / 37卷 / 06期

关键词：

3d-4f clusters; pseudo-D-5h symmetry; single-molecule magnet (SMM); TRANSITION-METAL IONS; CRYSTAL-STRUCTURE; GD-III; CO-II; FAMILY; COMPLEXES; MAGNETIZATION; LANTHANIDE; RELAXATION; DESIGN;

D O I：

10.1002/aoc.7104

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two novel 3d-4f clusters with {Co(6)(II)Ln(2)(III)} (Ln = Dy (1), Ho (2)) cores are fabricated, with formulas of {[Co(6)Ln(2)(O)(2)(dhpb)(6)(NO3)(2)(DMF)(2)]center dot H2O} (H(2)dhpb = 6,6 '-dihydroxyl-2,2 '-bipyridine, DMF = dimethyl formamide), which consist of two asymmetrical [Co(3)Ln] pyrimids bridged by a mu(4)-O bridge. The {Co(6)(II)Ln(2)(III)} core exhibits a bicapped anti-trigonal-prism configuration, and is held together by six dhpb(2-) ligands. Interestingly, the Ln(III) ions are seven-coordinate in pseudo-D-5h symmetry. The magnetic studies indicate that both compounds 1 and 2 show significant single-molecule magnet (SMM) behaviours.

引用

页数：12

共 57 条

[1] Nickel(II)-Lanthanide(III) Magnetic Exchange Coupling Influencing Single-Molecule Magnetic Features in {Ni2Ln2} Complexes [J].

Ahmed, Naushad ;

Das, Chinmoy ;

Vaidya, Shefali ;

Langley, Stuart K. ;

Murray, Keith S. ;

Shanmugam, Maheswaran .

CHEMISTRY-A EUROPEAN JOURNAL, 2014, 20 (44) :14235-14239

[2] Dodecanuclear 3d/4f-metal clusters with a 'Star of David' topology: single-molecule magnetism and magnetocaloric properties [J].

Alexandropoulos, Dimitris I. ;

Cunha-Silva, Luis ;

Lorusso, Giulia ;

Evangelisti, Marco ;

Tang, Jinkui ;

Stamatatos, Theocharis C. .

CHEMICAL COMMUNICATIONS, 2016, 52 (08) :1693-1696

[3] CRYSTAL-STRUCTURE AND MAGNETIC-PROPERTIES OF [LN2CU4] HEXANUCLEAR CLUSTERS (WHERE LN = TRIVALENT LANTHANIDE) - MECHANISM OF THE GD(III)-CU(II) MAGNETIC INTERACTION [J].

ANDRUH, M ;

RAMADE, I ;

CODJOVI, E ;

GUILLOU, O ;

KAHN, O ;

TROMBE, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (05) :1822-1829

[4] Magnetostructural correlations in the tetranuclear series of {Fe3LnO2} butterfly core clusters: Magnetic and Moumlssbauer spectroscopic study [J].

Bartolome, J. ;

Filoti, G. ;

Kuncser, V. ;

Schinteie, G. ;

Mereacre, V. ;

Anson, C. E. ;

Powell, A. K. ;

Prodius, D. ;

Turta, C. .

PHYSICAL REVIEW B, 2009, 80 (01)

[5] Magnetism of lanthanides in molecular materials with transition-metal ions and organic radicals [J].

Benelli, C ;

Gatteschi, D .

CHEMICAL REVIEWS, 2002, 102 (06) :2369-2387

[6] SYNTHESIS, CRYSTAL-STRUCTURE, AND MAGNETIC-PROPERTIES OF TETRANUCLEAR COMPLEXES CONTAINING EXCHANGE-COUPLED GD2CU2, DY2CU2 SPECIES [J].

BENELLI, C ;

CANESCHI, A ;

GATTESCHI, D ;

GUILLOU, O ;

PARDI, L .

INORGANIC CHEMISTRY, 1990, 29 (09) :1750-1755

[7] A Journey in Lanthanide Coordination Chemistry: From Evaporable Dimers to Magnetic Materials and Luminescent Devices [J].

Bernot, Kevin ;

Daiguebonne, Carole ;

Calvez, Guillaume ;

Suffren, Yan ;

Guillou, Olivier .

ACCOUNTS OF CHEMICAL RESEARCH, 2021, 54 (02) :427-440

[8] Carboxylate-Decorated Aggregation of Octanuclear Co4Ln4 (Ln = Dy, Ho, Yb) Complexes from Ligand-Controlled Hydrolysis: Synthesis, Structures, and Magnetic Properties [J].

Biswas, Mousumi ;

Sanudo, E. Carolina ;

Ray, Debashis .

INORGANIC CHEMISTRY, 2021, 60 (15) :11129-11139

[9]

Caneschi A, 2001, ANGEW CHEM INT EDIT, V40, P1760, DOI 10.1002/1521-3773(20010504)40:9<1760::AID-ANIE17600>3.0.CO

[10]

2-U

← 1 2 3 4 5 6 →