Spin tweaking of a high-spin molecule:: An Mn25 single-molecule magnet with an S=61/2 ground state

被引：244

作者：

Stamatatos, Theocharis C.

Abboud, Khalil A.

Wernsdorfer, Wolfgang

Christou, George ^{[1
]}

机构：

[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

[2] CNRS, Lab Louis Neel, Grenoble 9, France

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 06期

关键词：

cluster compounds; magnetic properties; manganese; N; O ligands; single-molecule magnets;

D O I：

10.1002/anie.200603254

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Spin doctoring: The already high spin of S = 5 1/2 of a Mn25 complex has been pushed even higher, by approximately 20%, to S = 6 1/2 by targeted substitution of the azide ligands with an N,O-chelating group. This significant adjustment, or tweaking, of the spin suggests the general possibility that a given type of complicated, high-nuclearity, high-spin molecule can exhibit differing ground states by appropriate modification of the peripheral ligation. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

收藏

页码：884 / 888

页数：5

相关论文

共 32 条

[1]

Ako A.M., 2006, ANGEW CHEM, V118, P5048, DOI DOI 10.1002/ANGE.200601467

[2] A ferromagnetically coupled Mn19 aggregate with a record S=83/2 ground spin state [J].

Ako, Ayuk M. ;

Hewitt, Ian J. ;

Mereacre, Valeritt ;

Clerac, Rodolphe ;

Wernsdorfer, Wolfgang ;

Anson, Christopher E. ;

Powell, Annie K. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (30) :4926-4929

[3] High-spin molecules:: Hexanuclear MnIII clusters with [Mn6O4X4]6+ (X = Cl-, Br-) face-capped octahedral cores and S=12 ground states [J].

Aromí, G ;

Knapp, MJ ;

Claude, JP ;

Huffman, JC ;

Hendrickson, DN ;

Christou, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (23) :5489-5499

[4] Resonant magnetization tunneling in the trigonal pyramidal Mn(IV)Mn-3(III) complex [Mn4O3Cl(O2CCH3)3(dbm)3] [J].

Aubin, SMJ ;

Dilley, NR ;

Pardi, L ;

Krzystek, J ;

Wemple, MW ;

Brunel, LC ;

Maple, MB ;

Christou, G ;

Hendrickson, DN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (20) :4991-5004

[5] Ligand-induced distortion of a tetranuclear manganese butterfly complex [J].

Bagai, Rashmi ;

Abboud, Khalil A. ;

Christou, George .

DALTON TRANSACTIONS, 2006, (27) :3306-3312

[6] Quantum tunneling of magnetization in a new [Mn18]2+ single-molecule magnet with S=13 [J].

Brechin, EK ;

Boskovic, C ;

Wernsdorfer, W ;

Yoo, J ;

Yamaguchi, A ;

Sañudo, EC ;

Concolino, TR ;

Rheingold, AL ;

Ishimoto, H ;

Hendrickson, DN ;

Christou, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (33) :9710-9711

[7] HEXANUCLEAR FERRIC COMPLEXES POSSESSING DIFFERENT DEGREES OF SPIN FRUSTRATION [J].

CHRISTMAS, CA ;

TSAI, HL ;

PARDI, L ;

KESSELMAN, JM ;

GANTZEL, PK ;

CHADHA, RK ;

GATTESCHI, D ;

HARVEY, DF ;

HENDRICKSON, DN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (26) :12483-12490

[8] Single-molecule magnets: a molecular approach to nanoscale magnetic materials [J].

Christou, G .

POLYHEDRON, 2005, 24 (16-17) :2065-2075

[9] HIGH-SPIN MOLECULES - UNUSUAL MAGNETIC-SUSCEPTIBILITY RELAXATION EFFECTS IN [MN12O12(O(2)CET)(16)(H2O)(3)] (S=9) AND THE ONE-ELECTRON REDUCTION PRODUCT (PPH4)[MN12O12(O(2)CET)(16)(H2O)(4)] (S=19/2) [J].

EPPLEY, HJ ;

TSAI, HL ;

DEVRIES, N ;

FOLTING, K ;

CHRISTOU, G ;

HENDRICKSON, DN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (01) :301-317

[10] Macroscopic measurement of resonant magnetization tunneling in high-spin molecules [J].

Friedman, JR ;

Sarachik, MP ;

Tejada, J ;

Ziolo, R .

PHYSICAL REVIEW LETTERS, 1996, 76 (20) :3830-3833

← 1 2 3 4 →