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¹³C NMR STUDY ON ONE DIMENSIONAL FULLERENE POLYMER

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

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MIN GU

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

Corresponding author.

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YAO YU

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

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XIAONONG XU

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

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JIAN WU

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

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GUOQIU YUAN

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

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, and

DUAN FENG

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nangjing, 210093, P. R. China

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https://doi.org/10.1142/S0217979205031043Cited by:4 (Source: Crossref)

Abstract

We have prepared three C₆₀ polymers under high-temperature and high-pressure conditions, and confirmed them to be orthorhombic (1D), tetragonal and rhombohedral (2D) polymer by XRD method, respectively. The ¹³C MAS NMR spectra of both orthorhombic and rhombohedral polymer have been measured and two resonance peaks observed. One resonance at 73 ppm resulted from the sp³ carbons with an intermolecular bonding, the other at 145 ppm is from the inequivalent sp² carbons on the C₆₀ molecule. For 1D polymer, the fine structure of the main peak at 145 ppm has been analyzed. By simulation of the ¹³C MAS NMR peak shape of the inequivalent carbons, we propose that there exist nine inequivalent carbons on a C₆₀ molecule in the orthorhombic (1D) polymer.

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