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A suspension formed as a result of ultrasonication of a mixture of graphite with N,N-dimethylformamide has been studied by 1H NMR spectroscopy. The dependence of the width of the 1H NMR signal on the N,N-dimethylformamide content of the suspension has been determined.
Methane-intercalated fullerite (CH4)0.56C60 was obtained by low-temperature precipitation from solution. Methane transition from the gas phase to the octahedral void of fullerite is accompanied by a bathochromic shift of normal vibrational frequencies (by 19 and 8 cm−1 for ν3 and ν4, respectively). The methane 13C signal in the proton decoupling 13C NMR spectrum is observed as a singlet at δ−0.42...
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