A Ferromagnetic Ring of Six Manganese(III) Ions with a S = 12 Ground State

Inorganic Chemistry

Volumn 37, Issue 7, 1998, Pages 1430-1431

  Abbati, Gian Luca ^a   Cornia, Andrea ^a   Fabretti, Antonio C ^a   Caneschi, Andrea ^b   Gatteschi, Dante ^b  

^a UNIVERSITY OF MODENA AND REGGIO EMILIA   (Italy)

^b UNIVERSITY OF FLORENCE   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001696214     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic971373c     Document Type: Article

References (18)

1. (a) Thomas, L.; Lionti, F.; Ballou, R.; Gatteschi, D.; Sessoli, R.; Barbara, B. Nature 1996, 383, 145.
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3. (c) Sessoli, R. Gatteschi, D.; Caneschi, A.; Novak, M. A. Nature 1993, 365, 141.
4. (d) Barra, A.-L.; Caneschi, A.; Gatteschi, D.; Sessoli, R. J. Am. Chem. Soc. 1995, 117, 8855.
5. (a) Abbati, G. L.; Cornia, A.; Fabretti, A. C.; Malavasi, W.; Schenetti, L.; Caneschi, A.; Gatteschi, D. Inorg. Chem. 1997, 36, 6443.
6. (b) Caneschi, A.; Cornia, A.; Fabretti, A. C.; Foner, S.; Gatteschi, D.; Grandi, R.; Schenetti, L. Chem.-Eur. J. 1996, 2, 1379.
7. (c) Caneschi, A.; Cornia, A.; Lippard, S. J. Angew. Chem., Int. Ed. Engl. 1995, 34, 467.
8. 1).
9. obsd) were not assigned.
10. Selected bond lengths (Å): Mn1-O1, 1.988(3); Mn1-O2, 2.274(3); Mn1-O3, 1.973(3); Mn1-O4, 1.921(3); Mn1-O7, 1.904(3); Mn1-O8, 2.074(3); Mn2-O1, 2.006(3); Mn2-O2, 1.903(3); Mn2-O5, 2.052-(3); Mn2-O6, 2.196(3); Mn2-O11, 2.042(3); Mn2-O12, 1.901(3); Mn3-O3′, 2.013(3); Mn3-O4′, 2.215(3); Mn3-O5, 1.963(3); Mn3-O6, 1.914(3); Mn3-O9, 1.914(3); Mn3-O10, 2.070(3); Na-O2, 2.306-(3); Na-O4, 2.305(3); Na-O6, 2.291(3). Interbond angles (deg): Mn1-O1-Mn2, 107.72(15); Mn2-O2-Mn1, 100.74(14); Mn1-O3-Mn3′, 106.7(2); Mn1-O4-Mn3′, 101.02(13); Mn3-O5-Mn2, 105.7(2); Mn3-O6-Mn2, 102.1(2). Nonbonded distances (Å) and angles (deg): Mn1-Mn2, 3.2258(10); Mn2-Mn3, 3.2011(11); Mn1-Mn3′, 3.1972(10); Mn3-Mn2-Mn1, 119.85(3); Mn1′-Mn3-Mn2, 119.55(3); Mn3′-Mn1-Mn2 119.92(3).
11. Barra, A. L.; Gatteschi, D.; Sessoli, R.; Abbati, G. L.; Cornia, A.; Fabretti, A. C.; Uytterhoeven, M. G. Angew. Chem., Int. Ed. Engl. 1997, 36, 2329.
12. Microcrystalline samples were subject to prolonged pumping before experiment. Magnetic fields of 10 kG for 30 ≤ T ≤ 260 K and 1 kG for 2.3 ≤ T < 30 K were used in magnetic susceptibility vs T runs on a Parafilm-restrained sample. Magnetization experiments were performed at 2.0 and 4.0 K in the field range 0-70 kG on a Vaseline-restrained sample.
13. Ginsberg, A. Inorg. Chim. Acta Rev. 1971, 5, 45.
14. 18; (d) Squire, R. C.; Aubin, S. M. J.; Folting, K.; Streib, W. E.; Christou, G.; Hendrickson, D. N. Inorg. Chem. 1995, 34, 6463.
15. 18; (d) Squire, R. C.; Aubin, S. M. J.; Folting, K.; Streib, W. E.; Christou, G.; Hendrickson, D. N. Inorg. Chem. 1995, 34, 6463.
16. 18; (d) Squire, R. C.; Aubin, S. M. J.; Folting, K.; Streib, W. E.; Christou, G.; Hendrickson, D. N. Inorg. Chem. 1995, 34, 6463.
17. 18; (d) Squire, R. C.; Aubin, S. M. J.; Folting, K.; Streib, W. E.; Christou, G.; Hendrickson, D. N. Inorg. Chem. 1995, 34, 6463.
18. Sheldrick, G. M. SHELXL-93: Program for Crystal Structure Refinement. Universität Göttingen, 1993.