Bond strengths of new carbon-nitride-related material C2N 2(CH2)

M. Sougawa, T. Sumiya, K. Takarabe, Y. Mori, T. Okada, H. Gotou, T. Yagi, D. Yamazaki, N. Tomioka, T. Katsura, H. Kariyazaki, K. Sueoka, S. Kunitsugu

    Research output: Contribution to journalConference articlepeer-review

    3 Citations (Scopus)


    A new carbon-nitride-related material C2N2(CH 2) nanopletelet was synthesized by subjecting a precursor C 3N4HxOy+Au in a laser-heating diamond anvil cell (LHDAC) to the pressure of 40 GPa and the temperature of 1200-2000 K. The synthesized C2N2(CH2) was accordingly found to be an orthorhombic unit cell of the space group Cmc2 1 with lattice constants a = 7.625Å, b = 4.490Å, and c = 4.047Å. The bulk modulus B0 was determined to be B0 = 258 ± 3.4 GPa, only the 60 % that of the diamond. C2N 2(CH2) consists of the tetrahedrally coordinated C with three C-N single bond and the one C-C single bond, and the bridging carbon with the C-CH2-C bond. The C-N single bond length of the tetrahedron ranges from 1.444 to 1.503 Å. This bond length is close to the C-N single bond of 1.447 to 1.458 Å in the superhard β-C3N 4. The compressibility of the C-N and C-C single bond of C 2N2(CH2) ranges from 0.976 to 0.982 with the pressure of 30 GPa. These values are very close to the compressibility of the C-N and C-C single bond of 0.978 to 0.982 in β-C3N4, cubic-C3N4, and diamond.

    Original languageEnglish
    Article number012028
    JournalJournal of Physics: Conference Series
    Issue number1
    Publication statusPublished - 2012
    Event23rd International Conference on High Pressure Science and Technology, AIRAPT-23 - Mumbai, India
    Duration: Sep 25 2011Sep 30 2011

    ASJC Scopus subject areas

    • Physics and Astronomy(all)


    Dive into the research topics of 'Bond strengths of new carbon-nitride-related material C<sub>2</sub>N <sub>2</sub>(CH<sub>2</sub>)'. Together they form a unique fingerprint.

    Cite this