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Science 2005 , 309 , 278-281. 1996 Nobel Prize. " for their discovery of fullerenes ". Robert F. Curl, Jr., Sir Harold W. Kroto , and Richard E. Smalley. Definition: A class of cage-like carbon compounds composed of fused, pentagonal and/or hexagonal sp 2 carbon rings.
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1996 Nobel Prize "for their discovery of fullerenes" Robert F. Curl, Jr., Sir Harold W. Kroto, and Richard E. Smalley Definition: A class of cage-like carbon compounds composed of fused, pentagonal and/or hexagonal sp2 carbon rings
Nobel Laureate Richard Smalley Dead At 62 Richard E. Smalley, who was a winner of the 1996 Nobel Prize in Chemistry for the discovery of fullerenes, died on Oct. 28 after a long battle with leukemia. Smalley, 62, was a professor of chemistry and physics at Rice University and founding director of the university’s Center for Nanoscale Science & Technology. Carlos Garcia, one of his colleagues at Rice, says, “We will miss Rick’s brilliance, commitment, energy, enthusiasm, and humanity. He epitomized what we value at Rice: path-breaking research, commitment to teaching, and contribution to the betterment of our world.” Another colleague at Rice, chemistry professor James M. Tour, who says Smalley was “my close friend and my hero,” notes that “a Leonardo da Vinci has passed.”—Ron Dagani
Fullerenes and Their derivatives C76 C60 C70 C78 C84 C82
C50Cl10 S.-Y. Xie et al., Science 304, 699 (2004). C36 Chem. Soc. Perkin Trans. 2, 2001, 487 (2001).
nanogram Phys. Chem. Chem. Phys. 6, 5213 (2004).
F2 C60 MnF3 , CeF4 ,K2PtF6 R. Taylor, Chem. Eur. J. 7, 4074 (2001).
Oxyfluorides :CsxPbOyFz [x equals 2, 3, or 4; y from 0.2 to 0.5; and z = (4 + x) – 2y], prepared by partial fluorination (1:9 F2/N2, 500oC, 2 to 4 hours) of appropriate molar ratios of CsCl and PbO2. fluorinating reagents 6.5 g C60 300 mg 550 oC, 7h extraction + CCl4/ Hex = 1:1 chromatography 15 mg of fluorinated C58 sprcies CCl4/ Tol= 1:1 HPLC 1 mg C58F18 (2) 4 mg C58F17CF3 (1) C60F18O
C58F5CF3 C58 C60F18O -CF3(69 amu) -CF3-8*F2 -CF3-8*F2-F EI mass spectrum (70 eV) of C58F17CF3 (1, 1088 amu). (Inset) A spectrum of a second sample.
nine-peak 19F NMR spectrum See ref 19
C60F17CF3 R. Taylor, J. Chem. Soc. Perkin Trans. 2 2000, 2410 (2000).
Mechanism of formation of perfluoroalkyl derivatives J. Chem. Soc., Perkin Trans. 2, 2000, 2410–2414
Fig. 5. (Left) Comparison of the chemical shifts for C58F17CF3 (top) and C58F18 (bottom).
Conclusion 1. both 1 and 2 appear to be as stable as their C60 counterparts, suggesting that further chemistry of C58 ([58]quasi-fullerene) is in prospect. 2. The HPLC retention times of these C58 compounds are ca. twice those for the corresponding C60 compounds (under conditions detailed above), which may help in identifying further C58 derivatives.