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Murata, Mitsuhiro; Ishiwata, M.; Yoshida, Takemi

doi:10.1023/a:1024245427330

Cited by 10 publications

(9 citation statements)

References 20 publications

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“…Endohedral fullerenes containing hydrogen [32][33][34][35] and water [36,37] have been successfully prepared through the molecular surgery path way. This method starts with the selective C-C cleavage of the fullerene cage to form open-cage fullerene with a suitable orifice, followed by encapsulation of the guest and finally closure of the orifice.…”

Section: Open-cage Fullerenes Related To Molecular Surgerymentioning

confidence: 99%

Open‐cage fullerenes as tailor‐made container for a single water molecule

Shi

Gan

2013

J of Physical Organic Chem

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Water is the most important liquid on earth. Clusters of water have been investigated extensively in an effort to understand the bulk property of water. But the behavior of single water molecule without H‐bond has been rarely studied. Open‐cage [60]fullerenes have been shown to trap a single water molecule selectively over molecules with comparable size and act as the smallest “water bottle”. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Open-cage Fullerenes Related To Molecular Surgerymentioning

confidence: 99%

Open‐cage fullerenes as tailor‐made container for a single water molecule

Shi

Gan

2013

J of Physical Organic Chem

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“…The dimensions of the cavity may be estimated from the crystal structure of ATOCF. 10 The carbon skeleton is roughly ellipsoidal, with principal axes ͕x C , y C , z C ͖, oriented such that the z C axis points from the cavity center towards the orifice. The ellipsoid diameters are given by d x C Х 700 pm, d y C Х 735 pm, and d z C Х 770 pm in the orifice direction.…”

Section: Translational Quantizationmentioning

confidence: 99%

Cryogenic NMR spectroscopy of endohedral hydrogen-fullerene complexes

Carravetta

Johannessen

Levitt

et al. 2006

The Journal of Chemical Physics

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We have observed 1H NMR spectra of hydrogen molecules trapped inside modified fullerene cages under cryogenic conditions. Experiments on static samples were performed at sample temperatures down to 4.3 K, while magic-angle-spinning (MAS) experiments were performed at temperatures down to 20 K at spinning frequencies of 15 kHz. Both types of NMR spectra show a large increase in the intramolecular 1H-1H dipolar coupling at temperatures below 50 K, revealing thermal selection of a small number of spatial rotational states. The static and MAS spectra were compared to estimate the degree of sample heating in high-speed cryogenic MAS-NMR experiments. The cryogenic MAS-NMR data show that the site resolution of magic-angle-spinning NMR may be combined with the high signal strength of cryogenic operation and that cryogenic phenomena may be studied with chemical site selectivity.

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“…Transformation of the σ framework of the fullerene cage causing an opening of a sufficiently large orifice by organic synthesis can greatly improve the yields of endohedral fullerenes. The C 60 derivative Aza-Thia Open-Cage Fullerene has a 13-membered-ring orifice [3] on the C 60 cage with dimensions 5.64 × 3.75 Å 2 and is expected to have good hosting properties for small atoms and molecules like H 2 and He. It was shown recently that the encapsulation of an H 2 -molecule in ATOCF creates with very high yield the endohedral complex H 2 @ATOCF [4].…”

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confidence: 99%

“…Preparation details are given in Ref. [3]. The ATOCF powder was measured as prepared, as well as after it was dissolved in 1,2-dichorobenzene and dried on a glass substrate.…”

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confidence: 99%

Inelastic light scattering of hydrogen containing open‐cage fullerene ATOCF

Rafailov

Thomsen

Bassil

et al. 2005

Physica Status Solidi (b)

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1 Introduction Endohedral complexes incorporating noble gases and other atomic species have attracted recent scientific interest in fullerene [1] and nanotube research [2]. They offer the possibility of studying quasi-isolated species inside the C 60 cage and, e.g., using them as contrast agent in magnetic resonance imaging.Transformation of the σ framework of the fullerene cage causing an opening of a sufficiently large orifice by organic synthesis can greatly improve the yields of endohedral fullerenes. The C 60 derivative Aza-Thia Open-Cage Fullerene has a 13-membered-ring orifice [3] on the C 60 cage with dimensions 5.64 × 3.75 Å 2 and is expected to have good hosting properties for small atoms and molecules like H 2 and He. It was shown recently that the encapsulation of an H 2 -molecule in ATOCF creates with very high yield the endohedral complex H 2 @ATOCF [4]. In this work we examine H 2 @ATOCF and the empty ATOCF by means of Raman spectroscopy. We establish significant differences in the Raman response of open-cage

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Untitled

Cited by 10 publications

References 20 publications

Open‐cage fullerenes as tailor‐made container for a single water molecule

Open‐cage fullerenes as tailor‐made container for a single water molecule

Cryogenic NMR spectroscopy of endohedral hydrogen-fullerene complexes

Inelastic light scattering of hydrogen containing open‐cage fullerene ATOCF

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