Organic spin clusters: Ferromagnetin spin coupling through a biphenyl unit in polyarylmethyl tri-, penta-, hepta-, and hexadecaradicals

Journal of the American Chemical Society

Volumn 119, Issue 48, 1997, Pages 11674-11686

  Rajca, Andrzej ^a   Wongsriratanakul, Jirawat ^a   Rajca, Suchada ^a  

^a UNIVERSITY OF NEBRASKA LINCOLN   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

POLYETHER; RADICAL;

ARTICLE; DRUG SYNTHESIS; ELECTRON SPIN RESONANCE; IN VITRO STUDY; MAGNETIC FIELD; MASS SPECTROMETRY; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; REACTION ANALYSIS; SPIN LABELING;

EID: 0031439624     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja972378b     Document Type: Article

References (40)

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2. For recent reviews on high-spin organic molecules, see: (a) Iwamura, H. Adv. Phys. Org. Chem. 1990, 26, 179. (b) Dougherty, D. A. Acc. Chem. Res. 1991, 24, 88. (c) Iwamura, H.; Koga, N. Acc. Chem. Res. 1993, 26, 346. (d) Rajca, A. Chem. Rev. 1994, 94, 871. (e) Miller, J. S.; Epstein, A. J. Angew. Chem., Int. Ed. Engl. 1994, 33, 385. (f) Yoshizawa, K.; Hoffmann, R. Chem. Eur. J. 1995, 1, 403.
3. For recent reviews on high-spin organic molecules, see: (a) Iwamura, H. Adv. Phys. Org. Chem. 1990, 26, 179. (b) Dougherty, D. A. Acc. Chem. Res. 1991, 24, 88. (c) Iwamura, H.; Koga, N. Acc. Chem. Res. 1993, 26, 346. (d) Rajca, A. Chem. Rev. 1994, 94, 871. (e) Miller, J. S.; Epstein, A. J. Angew. Chem., Int. Ed. Engl. 1994, 33, 385. (f) Yoshizawa, K.; Hoffmann, R. Chem. Eur. J. 1995, 1, 403.
4. For recent reviews on high-spin organic molecules, see: (a) Iwamura, H. Adv. Phys. Org. Chem. 1990, 26, 179. (b) Dougherty, D. A. Acc. Chem. Res. 1991, 24, 88. (c) Iwamura, H.; Koga, N. Acc. Chem. Res. 1993, 26, 346. (d) Rajca, A. Chem. Rev. 1994, 94, 871. (e) Miller, J. S.; Epstein, A. J. Angew. Chem., Int. Ed. Engl. 1994, 33, 385. (f) Yoshizawa, K.; Hoffmann, R. Chem. Eur. J. 1995, 1, 403.
5. For recent reviews on high-spin organic molecules, see: (a) Iwamura, H. Adv. Phys. Org. Chem. 1990, 26, 179. (b) Dougherty, D. A. Acc. Chem. Res. 1991, 24, 88. (c) Iwamura, H.; Koga, N. Acc. Chem. Res. 1993, 26, 346. (d) Rajca, A. Chem. Rev. 1994, 94, 871. (e) Miller, J. S.; Epstein, A. J. Angew. Chem., Int. Ed. Engl. 1994, 33, 385. (f) Yoshizawa, K.; Hoffmann, R. Chem. Eur. J. 1995, 1, 403.
6. For recent reviews on high-spin organic molecules, see: (a) Iwamura, H. Adv. Phys. Org. Chem. 1990, 26, 179. (b) Dougherty, D. A. Acc. Chem. Res. 1991, 24, 88. (c) Iwamura, H.; Koga, N. Acc. Chem. Res. 1993, 26, 346. (d) Rajca, A. Chem. Rev. 1994, 94, 871. (e) Miller, J. S.; Epstein, A. J. Angew. Chem., Int. Ed. Engl. 1994, 33, 385. (f) Yoshizawa, K.; Hoffmann, R. Chem. Eur. J. 1995, 1, 403.
7. For high-spin polyarylmethyls, see: (dendritic) (a) Rajca, S.; Rajca, A. In Polymeric Materials Encyclopedia; Salamone, J. C., Ed.; CRC: Boca Raton, FL, 1996; pp 1830-1834. (b) Rajca, A. Adv. Mater. 1994, 6, 605. (c) Rajca, A.; Utamapanya, S. J. Am. Chem. Soc. 1993, 115, 10688. (star-branched) (d) Rajca, A.; Utamapanya, S.; Thayumanavan, S. J. Am. Chem. Soc. 1992, 114, 1884.
8. For high-spin polyarylmethyls, see: (dendritic) (a) Rajca, S.; Rajca, A. In Polymeric Materials Encyclopedia; Salamone, J. C., Ed.; CRC: Boca Raton, FL, 1996; pp 1830-1834. (b) Rajca, A. Adv. Mater. 1994, 6, 605. (c) Rajca, A.; Utamapanya, S. J. Am. Chem. Soc. 1993, 115, 10688. (star-branched) (d) Rajca, A.; Utamapanya, S.; Thayumanavan, S. J. Am. Chem. Soc. 1992, 114, 1884.
9. For high-spin polyarylmethyls, see: (dendritic) (a) Rajca, S.; Rajca, A. In Polymeric Materials Encyclopedia; Salamone, J. C., Ed.; CRC: Boca Raton, FL, 1996; pp 1830-1834. (b) Rajca, A. Adv. Mater. 1994, 6, 605. (c) Rajca, A.; Utamapanya, S. J. Am. Chem. Soc. 1993, 115, 10688. (star-branched) (d) Rajca, A.; Utamapanya, S.; Thayumanavan, S. J. Am. Chem. Soc. 1992, 114, 1884.
10. For high-spin polyarylmethyls, see: (dendritic) (a) Rajca, S.; Rajca, A. In Polymeric Materials Encyclopedia; Salamone, J. C., Ed.; CRC: Boca Raton, FL, 1996; pp 1830-1834. (b) Rajca, A. Adv. Mater. 1994, 6, 605. (c) Rajca, A.; Utamapanya, S. J. Am. Chem. Soc. 1993, 115, 10688. (star-branched) (d) Rajca, A.; Utamapanya, S.; Thayumanavan, S. J. Am. Chem. Soc. 1992, 114, 1884.
11. For macrocyclic polyarylmethyls, see: (a) Rajca, A.; Rajca, S.; Padmakumar, Angew. Chem., Int. Ed. Engl. 1994, 33, 2091. (b) Rajca, A.; Rajca, S.; Desai, S. R. J. Am. Chem. Soc. 1995, 117, 806.
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25. 16 and the deuterated compounds complicates interpretation of the observed isotopic shifts.
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37. Unpublished data from this laboratory.
38. Assumptions of identical probability p for each site are common to the simplest versions of percolation theories: Stauffer, D. Introduction to Percolation Theory; Taylor and Francis: London, 1985.
39. 34
40. See the Supporting Information.