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Photochemically generated benzyl radicals react with C(60) producing radical and nonradical adducts Rn C(60) (R = C(6)H(5)CH(2)) with n = 1 to at least 15. The radical adducts with n = 3 and 5 are stable above 50 degrees C and have been identified by electron spin resonance (ESR) spectroscopy as the allylic R(3)C(60)(.) (3) and cyclopentadienyl R(5)C(60)(.) (5) radicals. The unpaired electrons are highly localized on the C(60) surface. The extraordinary stability of these radicals can be attributed to the steric protection of the surface radical sites by the surrounding benzyl substituents. Photochemically generated methyl radicals also add readily to C(60). Mass spectrometric analyses show the formation of (CH(3))nC(60) with n = 1 to at least 34.

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The liquid-crystal templating approach for the synthesis of mesostructured materials was extended to aluminophosphates. A variety of lamellar AlPO 4 phases with d spacings in the nanometer range were prepared in the presence of long-chain primary and tertiary amines. A systematic study of the influence of the gel composition was carried out. AlPO 4 materials were characterized by various techniques including XRD, TEM, electron diffraction, and 27 Al, 31 P, 15 N, and 13 C NMR. The gel composition has a drastic influence on the nature of the product formed and on the coordination of aluminum and phosphorus in the final "crystalline" phase. These lamellar AlPO 4 phases were not stable under calcination conditions and the templating surfactant could not be removed by solvent extraction.