%0 Journal Article
%T Hydrogenation of C-60 in Peapods: Physical Chemistry in Nano Vessels
%+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN)
%A Abou-Hamad, Edy
%A Kim, Younghyun
%A Talyzin, Alexandr V.
%A Goze-Bac, Christophe
%A Luzzi, David E.
%A Rubio, Angel
%A Wagberg, Thomas
%< avec comité de lecture
%Z LCVN:09-051
%@ 1932-7447
%J Journal of Physical Chemistry C
%I American Chemical Society
%V 113
%P 8583-8587
%8 2009
%D 2009
%R 10.1021/jp8095743
%K WALLED CARBON NANOTUBES
%K NMR
%K PRESSURE
%K ENCAPSULATION
%K MOLECULES
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
%Z Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph]
%Z Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Journal articles
%X Hydrogenation of C-60 molecules inside SWNT was achieved by direct reaction with hydrogen gas at elevated pressure and temperature. Evidence for the C-60 hydrogenation in peapods is provided by isotopic engineering with specific enrichment of encapsulated species and high resolution C-13 and H-1 NMR spectroscopy with the observation of characteristic diamagnetic and paramagnetic shifts of the NMR lines and the appearance of sp(3) carbon resonances. We estimate that approximately 78% of the C-60 molecules inside SWNTs are hydrogenated to an average degree of 14 hydrogen atoms per C-60 molecule. As a consequence, the rotational dynamics of the encapsulated C60Hx molecules is clearly hindered. Our successful hydrogenation experiments open completely new roads to understand and control confined chemical reactions at the nano scale.
%G English
%L hal-00503218
%U https://hal.science/hal-00503218
%~ CNRS
%~ UNIV-MONTP2
%~ LCVN
%~ UNIV-MONTPELLIER
%~ UM1-UM2