Inorganic Approach to Stabilizing Nanoscale Toroidicity in a Tetraicosanuclear Fe18Dy6 Single Molecule Magnet | Zendy

Hagen Kaemmerer | Zendy; Amer Baniodeh | Zendy; Yan Peng | Zendy; Eufemio Moreno Pineda | Zendy; Michael Schulze | Zendy; Christopher E. Anson | Zendy; Wolfgang Wernsdorfer | Zendy; Jürgen Schnack | Zendy; Annie K. Powell | Zendy

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Inorganic Approach to Stabilizing Nanoscale Toroidicity in a Tetraicosanuclear Fe₁₈Dy₆ Single Molecule Magnet

Author(s) -

Hagen Kaemmerer,

Amer Baniodeh,

Yan Peng,

Eufemio Moreno Pineda,

Michael Schulze,

Christopher E. Anson,

Wolfgang Wernsdorfer,

Jürgen Schnack,

Annie K. Powell

Publication year - 2020

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/jacs.0c07168

Subject(s) - chemistry , isostructural , single molecule magnet , crystallography , cluster (spacecraft) , counterion , molecule , ion , magnet , anisotropy , magnetization , crystal structure , physics , magnetic field , organic chemistry , quantum mechanics , computer science , programming language

Cyclic coordination clusters (CCCs) are proving to provide an extra dimension in terms of exotic magnetic behavior as a result of their finite but cyclized chain structures. The Fe 18 Dy 6 CCC is a Single Molecule Magnet with the highest nuclearity among Ln containing clusters. The three isostructural compounds [Fe 18 Ln 6 (μ-OH) 6 (ampd) 12 (Hampd) 12 (PhCO 2 ) 24 ](NO 3 ) 6 ·38MeCN for Ln = Dy III ( 1 ), Lu III ( 2 ), or Y III ( 3 ), where H 2 ampd = 2-amino-2-methyl-1,3-propanediol, are reported. These can be described in terms of the cyclization of six {Fe 3 Ln(μOH)(ampd) 2 (Hampd) 2 (PhCO 2 ) 4 } + units with six nitrate counterions to give the neutral cluster. The overall structure consists of two giant Dy 3 riangles sandwiching a strongly antiferromagnetically coupled Fe 18 ring, leading to a toroidal arrangement of the anisotropy axis of the Dy ions, making this the biggest toroidal arrangement on a molecular level known so far.

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