Mixed valency in polynuclear MnII/MnIII, Mn III/MnIV and MnII/MnIII/Mn IV clusters: A foundation for high-spin molecules and single-molecule magnets

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

Volumn 366, Issue 1862, 2008, Pages 113-125

  Stamatatos, Theocharis C ^a   Christou, George ^a  

^a University of Florida ^*  (United States)

Author keywords

Exchange interactions; High spin molecules; Mixed valency; Polynuclear Mn complexes; Single molecule magnets

Indexed keywords

ANTIFERROMAGNETISM; COMPLEXATION; MAGNETS; PARAMETER ESTIMATION; SPIN DENSITY WAVES; VALENCE BANDS;

MIXED VALENCY; MOLECULAR NANOMAGNETS; POLYNUCLEAR MOLECULAR COMPOUNDS; SINGLE MOLECULE MAGNETS;

MANGANESE COMPOUNDS;

EID: 39049109640     PISSN: 1364503X     EISSN: None     Source Type: Journal    
DOI: 10.1098/rsta.2007.2144     Document Type: Article

References (38)

1. 3] complexes with S= 9/2. J. Am. Chem. Soc. 126, 12 503 12 516. (doi:10.1021/ja047527m)
2. Aromi, G. & Brechin, E. K. 2006 Synthesis of 3d metallic single-molecule magnets. Struct. Bond. (Berlin) 122, 1 67.
3. -) face-capped octahedral cores and S= 12 ground states. J. Am. Chem. Soc. 121, 5489 5499. (doi:10.1021/ja983446c)
4. 2 = 2,2'-biphenol, bpy = 2,2'-bipyridine). J. Chem. Soc. Chem. Commun. 11, 700 702. (doi:10.1039/c39880000700)
5. Brechin, E. K. 2005 Using tripodal alcohols to build high-spin molecules and single-molecule magnets. Chem. Commun. 41, 5141 5153. (doi:10.1039/b510102f)
6. 12 family spanning three oxidation levels. Inorg. Chem. 44, 5304 5321. (doi:10.1021/ic050379w)
7. 2. J. Am. Chem. Soc. 128, 6975 6989. (doi:10.1021/ja060796n)
8. Christou, G. 2005 Single-molecule magnets: a magnetic approach to nanoscale magnetic materials. Polyhedron 24, 2065 2074. (doi:10.1016/j.poly.2005.03.021)
9. Christou, G., Gatteschi, D., Hendrickson, D. N. & Sessoli, R. 2000 Single-molecule magnets. MRS Bull. 25, 66 71.
10. 4+ cubane complexes. Inorg. Chem. 34, 4167 4177. (doi:10.1021ic00120a022)
11. III clusters and their magnetic properties. Chem. Eur. J. 10, 5180 5194. (doi:10.1002/chem.200400301)
12. Kahn, O. 1993 Molecular magnetism. New York, NY: VCH Publishers.
13. Lis, T. 1980 Preparation, structure, and magnetic properties of a dodecanuclear mixed-valence manganese carboxylate. Acta Crystallogr. Sect. B36, 2042 2046. (doi:10.1107/S0567740880007893)
14. 2+ (bipy = 2, 2'-bipyridine) unit with accessible coordination sites. Contribution to the modeling of the photosynthetic oxygen evolving center. J. Chem. Soc. Chem. Commun. 6, 431 432. (doi:10. 1039/C39880000431)
15. Milios, C. J., Raptopoulou, C. P., Terzis, A., Lloret, F., Vicente, R., Perlepes, S. P. & Escuer, A. 2004 Hexanuclear manganese (III) single-molecule magnets. Angew. Chem. Int. Ed. 43, 210 212. (doi:10.1002/anie.200351079)
16. Milios, C. J., Prescimone, A., Mishra, A., Parsons, S., Wernsdorfer, W., Christou, G., Perlepes, S. P. & Brechin, E. K. 2007 A rare ferromagnetic manganese(III) 'cube'. Chem. Commun. 153 155. (doi:10.1039/b611174b)
17. Miyasaka, H., Clérac, R., Wernsdorfer, W., Leeren, L., Bonhomme, C., Sugiura, K. & Yamashita, M. 2004 A dimeric manganese(III) tetradentate Schiff base complex as a single-molecule magnet. Angew. Chem. Int. Ed. 43, 2801 2805. (doi:10.1002/anie.200353563)
18. 19 magnetic units. Angew. Chem. Int. Ed. 45, 7722 7725. (doi:10.1002/anie.200603498)
19. 25 complex with a record S= 51/2 spin for a molecular species. J. Am. Chem. Soc. 126, 4766 4767. (doi:10.1021/ja0316824)
20. Plaksin, P. M., Stoufer, R. C., Mathew, M. & Palenik, G. J. 1972 Novel antiferromagnetic oxobridged manganese complex. J. Am. Chem. Soc. 94, 2121 2122. (doi:10.1021/ja00761a059)
21. 12 acetate by polarized neutron diffraction. J. Phys. Condens. Matter 12, 2805 2810. (doi:10.1088/0953-8984/12/12/318)
22. 4]. J. Am. Chem. Soc. 115, 1804. (doi:10.1021/ja00058a027)
23. Sessoli, R., Gatteschi, D., Caneschi, A. & Novak, M. A. 19936 Magnetic bistability in a metal-ion cluster. Nature 365, 141 143. (doi:10.1038/365141a0)
24. 4]. J. Am. Chem. Soc. 115, 1804 1816. (doi:10.1021/ja00058a027)
25. Sheats, J. E., Czernuszewicz, R. S., Dismukes, G. C., Rheingold, A. L., Petrouleas, V., Stubbe, J., Armstrong, W. H., Beer, R. H. & Lippard, S. J. 1987 Binuclear manganese (III) complexes of potential biological significance. J. Am. Chem. Soc. 109, 1435 1444. (doi:10.1021/ja00239a025)
26. 7+ complex. J. Am. Chem. Soc. 127, 15 380 15 381. (doi:10.1021/ja0558138)
27. 10 cage possessing rare T symmetry and an S=22 ground state. Angew. Chem. Int. Ed. 45, 4134 4137. (doi:10.1002/anie.200600691)
28. Stamatatos, T. C. et al. 2007a "Switching on" the properties of single-molecule magnetism in triangular manganese (III) complexes. J. Am. Chem. Soc. 129, 9484 9499. (doi:10.1021/ja072194p)
29. 25 single-molecule magnet with an S= 61/2 ground state. Angew. Chem. Int. Ed. 46, 884 888. (doi:10.1002/anie.200603254)
30. Stebler, M., Ludi, A. & Buergi, H.-B. 1986 Tetrakis(phenanthroline) di-μ-oxodimanganese(III,IV)-tris(hexafluorophosphate)'acetonitrile and tetrakis(phenanthroline)di-μ-oxodimanganese(IV)- tetraperchlorate'acetonitrile: crystal structure analyses at 100 K, interpretation of disorder, and optical, magnetic, and electrochemical results. Inorg. Chem. 25, 4743 4750. (doi:10.1021ic00246a032)
31. 84} torus and its supramolecular nanotubes. Angew. Chem. Int. Ed. 43, 2117 2121. (doi:10.1002/anie.200353352)
32. 2O. Inorg. Chim. Acta 141, 167 168. (doi: 10. 1016/S0020-1693(00) 83904-3)
33. Vincent, J. B., Folting, K., Huffman, J. C. & Christou, G. 1988 Dinuclear manganese-oxide complexes as models for manganese catalase. Biochem. Soc. Trans. 16, 822 823.
34. 2] (X = chloride, azide, water). J. Am. Chem. Soc. 115, 12 353 12 361. (doi:10.1021/ja00079a016)
35. Wernsdorfer, W., Aliaga-Alcalde, N., Hendrickson, D. N. & Christou, G. 2002 Exchange-biased quantum tunnelling in a supramolecular dimer of single-molecule magnets. Nature 416, 406 409. (doi:10.1038/ 416406a)
36. Wieghardt, K., Bossek, U., Ventur, D. & Weiss, J. 1985 Assembly and structural characterization of binuclear μ-oxodi-μ-acetato-bridged complexes of manganese(III) analogs of the diiron(III) center in hemerythrin. J. Chem. Soc. Chem. Commun. 6, 347 349. (doi:10.1039/c39850000347)
37. 3 (L=N,N',N"-trimethyl-l, 4,7-triazacyclonanane). Angew. Chem. 98, 1026 1027. (doi:10.1002/ange,19860981128)
38. 2MeCN. Crystal structure, magnetic properties, and ESR spectrum (L = 1,4, 7-triazacyclononane). J. Chem. Soc. Chem. Commun. 9, 651 653. (doi:10.1039/c39870000651)