Pentamethylated derivatives of [60]fullerene: X-ray structure of the C60Me5H and ESR spectroscopy evidence for the stable radical C60Me5

Autor:	Boris Tumanskii, F. M. Dolgushin, V. I. Sokolov, Pavel V. Petrovskii, Vasily V. Bashilov
Rok vydání:	2008
Předmět:	Fullerene Chemistry Organic Chemistry Stacking X-ray Analytical chemistry Biochemistry Crystal chemistry.chemical_compound Crystallography Group (periodic table) Drug Discovery Molecule Spectroscopy Methyl group
Zdroj:	Tetrahedron. 64:11291-11295
ISSN:	0040-4020
DOI:	10.1016/j.tet.2008.09.071
Popis:	Single-crystal X-ray study of 6,9,12,15,18-pentamethyl-1,6,9,12,15,18-hexahydro(C60-Ih)[5,6]fullerene (C60Me5H) has been reported. In crystal packing, the stacking self-organization of molecules is realized. It is concluded that the formation of such polar columns is a general rule for crystals of C60R5H independent of the nature of the R group. An ESR spectrum of the stable fullerenyl radical of the cyclopentadienyl-type, C60Me5, was observed in a sample of the pentamethylated[60]fullerene. Rotation of methyl groups around C–C bonds is restricted on the ESR scale time and therefore protons within each methyl group are non-equivalent.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1ed365d056c850c22c49f07ebb5142e0 https://doi.org/10.1016/j.tet.2008.09.071 Zobrazit plný text záznamu Full Text from ScienceDirect