Detalles de publicación
PP 012062
Determination of the Integrated Molar Absorptivity and Molar Extinction Coefficient of Hydrogenated Fullerenes
a Istituto Nazionale di Astrofisica – Osservatorio Astrofisico di
Catania, Catania, Italy
b Actinium Chemical Research, Rome, Italy
c Instituto de Astrofisica de Canarias, La Laguna, Tenerife, Spain
d Departamento de Astrofısica, Universidad de La Laguna (ULL), La
Laguna, Spain
e Consejo Superior de Investigaciones Científicas, Madrid, Spain
The integrated molar absorptivity (Psi) and the molar extinction coefficient (ε) of each
infrared transition of the hydrogenated fullerenes (known as fulleranes) C60H36, C70H38
and a mixture of fulleranes generally referred as 77% of C60Hx and 22% C70Hy with
x ≈ y > 30 were determined. These data are useful for the search, identification and
quantitative determination of fulleranes in space after the recent discovery that their
parent molecules C60 and C70 are present in certain planetary nebulae and in the interstellar
medium. It is shown that the C-H stretching band of fulleranes C60H36, C70H38
and their mixture at about 2905 and 2820 cm−1 are the most useful for the identification
of these molecules because their Psi and ε values are unique in terms of strength overcoming
by far the typical pSI and ε values of reference molecules like adamantane and
docosane as well as typical ε literature data for aliphatic molecules.
infrared transition of the hydrogenated fullerenes (known as fulleranes) C60H36, C70H38
and a mixture of fulleranes generally referred as 77% of C60Hx and 22% C70Hy with
x ≈ y > 30 were determined. These data are useful for the search, identification and
quantitative determination of fulleranes in space after the recent discovery that their
parent molecules C60 and C70 are present in certain planetary nebulae and in the interstellar
medium. It is shown that the C-H stretching band of fulleranes C60H36, C70H38
and their mixture at about 2905 and 2820 cm−1 are the most useful for the identification
of these molecules because their Psi and ε values are unique in terms of strength overcoming
by far the typical pSI and ε values of reference molecules like adamantane and
docosane as well as typical ε literature data for aliphatic molecules.