<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2016-7-1-44-50</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-756</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PAPERS, PRESENTED AT THE CONFERENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>PAPERS, PRESENTED AT THE CONFERENCE</subject></subj-group></article-categories><title-group><article-title>Is graphane the most stable carbon monohydride?</article-title><trans-title-group xml:lang="ru"><trans-title>Is graphane the most stable carbon monohydride?</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Kondrin</surname><given-names>M. V.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondrin</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>142190 Troitsk, Moscow</p></bio><bio xml:lang="en"><p>142190 Troitsk, Moscow</p></bio><email xlink:type="simple">mkondrin@hppi.troitsk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Brazhkin</surname><given-names>V. V.</given-names></name><name name-style="western" xml:lang="en"><surname>Brazhkin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>142190 Troitsk, Moscow</p></bio><bio xml:lang="en"><p>142190 Troitsk, Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Institute for High Pressure Physics RAS</institution></aff><aff xml:lang="en"><institution>Institute for High Pressure Physics RAS</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>14</day><month>08</month><year>2025</year></pub-date><volume>7</volume><issue>1</issue><issue-title>Special Issue: Proceedings of the 12th Biennial International Conference “Advanced Carbon Nanostructures” (ACNS’2015)</issue-title><fpage>44</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kondrin M.V., Brazhkin V.V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Kondrin M.V., Brazhkin V.V.</copyright-holder><copyright-holder xml:lang="en">Kondrin M.V., Brazhkin V.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nanojournal.ifmo.ru/jour/article/view/756">https://nanojournal.ifmo.ru/jour/article/view/756</self-uri><abstract><p>We discuss a number of hydrocarbon structures whose cohesive energy is not worse than that of benzene and graphanes. These structures can be regarded as sublattices of known carbon structures so the strain exerted on the crystal lattice is minimal and caused mostly by the steric interactions of hydrogen atoms. Possible synthetic routes are proposed. Due to their exceptional mechanical, structural and electrical properties, these crystal structures may have utility as mechanical, optoelectronic or biological materials.</p></abstract><trans-abstract xml:lang="ru"><p>We discuss a number of hydrocarbon structures whose cohesive energy is not worse than that of benzene and graphanes. These structures can be regarded as sublattices of known carbon structures so the strain exerted on the crystal lattice is minimal and caused mostly by the steric interactions of hydrogen atoms. Possible synthetic routes are proposed. Due to their exceptional mechanical, structural and electrical properties, these crystal structures may have utility as mechanical, optoelectronic or biological materials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>graphane</kwd><kwd>diamond monohydride</kwd><kwd>hydrocarbons</kwd><kwd>nitrogen</kwd><kwd>high pressures</kwd></kwd-group><kwd-group xml:lang="en"><kwd>graphane</kwd><kwd>diamond monohydride</kwd><kwd>hydrocarbons</kwd><kwd>nitrogen</kwd><kwd>high pressures</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The authors acknowledge financial support from the RSF (Grant No. 14-22-00093) and thank Y.B. Lebed for assistance and helpful discussions.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Sluiter M. H. F., Kawazoe Y. Cluster expansion method for adsorption: Application to hydrogen chemisorption on graphene. Phys. Rev. B, 2003, 68 (8), P. 085410.</mixed-citation><mixed-citation xml:lang="en">Sluiter M. H. F., Kawazoe Y. Cluster expansion method for adsorption: Application to hydrogen chemisorption on graphene. Phys. Rev. B, 2003, 68 (8), P. 085410.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Sofo J., Chaudhari A., Barber G. Graphane: A two-dimensional hydrocarbon. Phys. Rev. B, 2007, 75 (15), P. 153401.</mixed-citation><mixed-citation xml:lang="en">Sofo J., Chaudhari A., Barber G. Graphane: A two-dimensional hydrocarbon. Phys. Rev. B, 2007, 75 (15), P. 153401.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Elias D. C., Nair R. R., Mohiuddin T. M. G., Morozov S. V., Blake P., Halsall M. P., Ferrari A. C., Boukhvalov D. W., Katsnelson M. I., Geim A. K., Novoselov K. S. Control of Graphene’s Properties by Reversible Hydrogenation: Evidence for Graphane. Science, 2009, 323 (5914), P. 610–613.</mixed-citation><mixed-citation xml:lang="en">Elias D. C., Nair R. R., Mohiuddin T. M. G., Morozov S. V., Blake P., Halsall M. P., Ferrari A. C., Boukhvalov D. W., Katsnelson M. I., Geim A. K., Novoselov K. S. Control of Graphene’s Properties by Reversible Hydrogenation: Evidence for Graphane. Science, 2009, 323 (5914), P. 610–613.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Savini G., Ferrari A. C., Giustino F. First-Principles Prediction of Doped Graphane as a High-Temperature Electron-Phonon Superconductor. Phys. Rev. Lett., 2010, 105 (3), P. 037002.</mixed-citation><mixed-citation xml:lang="en">Savini G., Ferrari A. C., Giustino F. First-Principles Prediction of Doped Graphane as a High-Temperature Electron-Phonon Superconductor. Phys. Rev. Lett., 2010, 105 (3), P. 037002.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Loktev V., Turkowski V. Possible High-Temperature Superconductivity in Multilayer Graphane: Can the Cuprates be Beaten? Journal of Low Temperature Physics, 2011, 164 (5-6), P. 264–271.</mixed-citation><mixed-citation xml:lang="en">Loktev V., Turkowski V. Possible High-Temperature Superconductivity in Multilayer Graphane: Can the Cuprates be Beaten? Journal of Low Temperature Physics, 2011, 164 (5-6), P. 264–271.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Peng Q., Dearden A. K., Crean J., Han L., Liu S., Wen X., De S. New materials graphyne, graphdiyne, graphone, and graphane: review of properties, synthesis, and application in nanotechnology. Nanotechnology, Science and Applications, 2104, 7, P. 1–29.</mixed-citation><mixed-citation xml:lang="en">Peng Q., Dearden A. K., Crean J., Han L., Liu S., Wen X., De S. New materials graphyne, graphdiyne, graphone, and graphane: review of properties, synthesis, and application in nanotechnology. Nanotechnology, Science and Applications, 2104, 7, P. 1–29.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Zhou C., Chen S., Lou J., Wang J., Yang Q., Liu C., Huang D., Zhu T. Graphene’s cousin: the present and future of graphane. Nanoscale Research Letters, 2014, 9 (1), P. 26.</mixed-citation><mixed-citation xml:lang="en">Zhou C., Chen S., Lou J., Wang J., Yang Q., Liu C., Huang D., Zhu T. Graphene’s cousin: the present and future of graphane. Nanoscale Research Letters, 2014, 9 (1), P. 26.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Ciabini L., Gorelli F. A., Santoro M., Bini R., Schettino V., Mezouar M. High-pressure and high-temperature equation of state and phase diagram of solid benzene. Phys. Rev. B, 2005, 72 (9), P. 094108.</mixed-citation><mixed-citation xml:lang="en">Ciabini L., Gorelli F. A., Santoro M., Bini R., Schettino V., Mezouar M. High-pressure and high-temperature equation of state and phase diagram of solid benzene. Phys. Rev. B, 2005, 72 (9), P. 094108.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Eaton P. E., Cole T. W. Cubane. Journal of the American Chemical Society, 1964, 86 (15), P. 3157–3158.</mixed-citation><mixed-citation xml:lang="en">Eaton P. E., Cole T. W. Cubane. Journal of the American Chemical Society, 1964, 86 (15), P. 3157–3158.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Fleischer E. B. X-Ray Structure Determination of Cubane. Journal of the American Chemical Society, 1964, 86 (18), P. 3889–3890.</mixed-citation><mixed-citation xml:lang="en">Fleischer E. B. X-Ray Structure Determination of Cubane. Journal of the American Chemical Society, 1964, 86 (18), P. 3889–3890.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Yildirim T., Gehring P., Neumann D., Eaton P., Emrick T. Unusual structure, phase transition, and dynamics of solid cubane. Phys. Rev. Lett., 1997, 78 (26), P. 4938–4941.</mixed-citation><mixed-citation xml:lang="en">Yildirim T., Gehring P., Neumann D., Eaton P., Emrick T. Unusual structure, phase transition, and dynamics of solid cubane. Phys. Rev. Lett., 1997, 78 (26), P. 4938–4941.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Criegee R., Askani R. Octamethylsemibullvalene. Angewandte Chemie International Edition in English, 1968, 7 (7), P. 537–537.</mixed-citation><mixed-citation xml:lang="en">Criegee R., Askani R. Octamethylsemibullvalene. Angewandte Chemie International Edition in English, 1968, 7 (7), P. 537–537.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Wen X.-D., Hoffmann R., Ashcroft N. W. Benzene under High Pressure: a Story of Molecular Crystals Transforming to Saturated Networks, with a Possible Intermediate Metallic Phase. Journal of the American Chemical Society, 2011, 133 (23), P. 9023–9035.</mixed-citation><mixed-citation xml:lang="en">Wen X.-D., Hoffmann R., Ashcroft N. W. Benzene under High Pressure: a Story of Molecular Crystals Transforming to Saturated Networks, with a Possible Intermediate Metallic Phase. Journal of the American Chemical Society, 2011, 133 (23), P. 9023–9035.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Fitzgibbons T. C., Guthrie M., shi Xu E., Crespi V. H., Davidowski S. K., Cody G. D., Alem N., Badding J. V. Benzene-derived carbon nanothreads. Nature Materials, 2015, 14, P. 43–47.</mixed-citation><mixed-citation xml:lang="en">Fitzgibbons T. C., Guthrie M., shi Xu E., Crespi V. H., Davidowski S. K., Cody G. D., Alem N., Badding J. V. Benzene-derived carbon nanothreads. Nature Materials, 2015, 14, P. 43–47.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Lian C.-S., Wang X.-Q., Wang J.-T. Hydrogenated K4 carbon: A new stable cubic gauche structure of carbon hydride. The Journal of Chemical Physics, 2013, 138 (2), P. 024702.</mixed-citation><mixed-citation xml:lang="en">Lian C.-S., Wang X.-Q., Wang J.-T. Hydrogenated K4 carbon: A new stable cubic gauche structure of carbon hydride. The Journal of Chemical Physics, 2013, 138 (2), P. 024702.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">He C., Sun L. Z., Zhang C. X., Zhong J. Low energy three-dimensional hydrocarbon crystal from cold compression of benzene. Journal of Physics: Condensed Matter, 2013, 25 (20), P. 205403.</mixed-citation><mixed-citation xml:lang="en">He C., Sun L. Z., Zhang C. X., Zhong J. Low energy three-dimensional hydrocarbon crystal from cold compression of benzene. Journal of Physics: Condensed Matter, 2013, 25 (20), P. 205403.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Lian C.-S., Li H.-D., Wang J.-T. Crystalline structures of polymeric hydrocarbon with 3,4-fold helical chains. Sci. Rep., 2015, 5, P. 07723.</mixed-citation><mixed-citation xml:lang="en">Lian C.-S., Li H.-D., Wang J.-T. Crystalline structures of polymeric hydrocarbon with 3,4-fold helical chains. Sci. Rep., 2015, 5, P. 07723.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Eremets M. I., Gavriliuk A. G., Trojan I. A., Dzivenko D. A., Boehler R. Single-bonded cubic form of nitrogen. Nat Mater, 2004, 3 (8), P. 558–563.</mixed-citation><mixed-citation xml:lang="en">Eremets M. I., Gavriliuk A. G., Trojan I. A., Dzivenko D. A., Boehler R. Single-bonded cubic form of nitrogen. Nat Mater, 2004, 3 (8), P. 558–563.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Wen X.-D., Hand L., Labet V., Yang T., Hoffmann R., Ashcroft N. W., Oganov A. R., Lyakhov A. O. Graphane sheets and crystals under pressure. Proceedings of the National Academy of Sciences, 2011, 108 (17), P. 6833– 6837.</mixed-citation><mixed-citation xml:lang="en">Wen X.-D., Hand L., Labet V., Yang T., Hoffmann R., Ashcroft N. W., Oganov A. R., Lyakhov A. O. Graphane sheets and crystals under pressure. Proceedings of the National Academy of Sciences, 2011, 108 (17), P. 6833– 6837.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Kondrin M. V., Brazhkin V. V. Diamond monohydride: the most stable three-dimensional hydrocarbon. Phys. Chem. Chem. Phys., 2015, 17 (27), P. 17739–17744.</mixed-citation><mixed-citation xml:lang="en">Kondrin M. V., Brazhkin V. V. Diamond monohydride: the most stable three-dimensional hydrocarbon. Phys. Chem. Chem. Phys., 2015, 17 (27), P. 17739–17744.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Blatov V. A., Proserpio D. M. Periodic-graph approaches in crystal structure prediction. In Modern Methods of Crystal Structure Prediction (Oganov A. R., editor), chapter 1, pp. 1–28. Wiley-VCH Verlag GmbH &amp; Co. KGaA, 2010.</mixed-citation><mixed-citation xml:lang="en">Blatov V. A., Proserpio D. M. Periodic-graph approaches in crystal structure prediction. In Modern Methods of Crystal Structure Prediction (Oganov A. R., editor), chapter 1, pp. 1–28. Wiley-VCH Verlag GmbH &amp; Co. KGaA, 2010.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Delgado-Friedrichs O., Foster M. D., O’Keeffe M., Proserpio D. M., Treacy M. M. J., Yaghi O. M. What do we know about three-periodic nets? Journal of Solid State Chemistry, 2005, 178 (8), P. 2533 – 2554.</mixed-citation><mixed-citation xml:lang="en">Delgado-Friedrichs O., Foster M. D., O’Keeffe M., Proserpio D. M., Treacy M. M. J., Yaghi O. M. What do we know about three-periodic nets? Journal of Solid State Chemistry, 2005, 178 (8), P. 2533 – 2554.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Németh P., Garvie L. A. J., Aoki T., Dubrovinskaia N., Dubrovinsky L., Buseck P. R. Lonsdaleite is faulted and twinned cubic diamond and does not exist as a discrete material. Nat Commun, 2014, 5.</mixed-citation><mixed-citation xml:lang="en">Németh P., Garvie L. A. J., Aoki T., Dubrovinskaia N., Dubrovinsky L., Buseck P. R. Lonsdaleite is faulted and twinned cubic diamond and does not exist as a discrete material. Nat Commun, 2014, 5.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Tolèdano P., Dmitriev V. Reconstructive phase transitions in crystals and quasicrystals. World Scientific, Singapore, 1996.</mixed-citation><mixed-citation xml:lang="en">Tolèdano P., Dmitriev V. Reconstructive phase transitions in crystals and quasicrystals. World Scientific, Singapore, 1996.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Aroyo M. I., Perez-Mato J. M., Capillas C., Kroumova E., Ivantchev S., Madariaga G., Kirov A., Wondratschek H. Bilbao Crystallographic Server: I. Databases and crystallographic computing programs. Zeitschrift fu¨r Kristallographie, 2006, 221 (1), P. 15–27.</mixed-citation><mixed-citation xml:lang="en">Aroyo M. I., Perez-Mato J. M., Capillas C., Kroumova E., Ivantchev S., Madariaga G., Kirov A., Wondratschek H. Bilbao Crystallographic Server: I. Databases and crystallographic computing programs. Zeitschrift fu¨r Kristallographie, 2006, 221 (1), P. 15–27.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Capillas C., Kroumova E., Aroyo M. I., Perez-Mato J. M., Stokes H. T., Hatch D. M. SYMMODES: a software package for group-theoretical analysis of structural phase transitions. Journal of Applied Crystallography, 2003, 36 (3 Part 2), P. 953–954.</mixed-citation><mixed-citation xml:lang="en">Capillas C., Kroumova E., Aroyo M. I., Perez-Mato J. M., Stokes H. T., Hatch D. M. SYMMODES: a software package for group-theoretical analysis of structural phase transitions. Journal of Applied Crystallography, 2003, 36 (3 Part 2), P. 953–954.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Kroumova E., Perez-Mato J. M., Aroyo M. I. WYCKSPLIT: a computer program for determination of the relations of Wyckoff positions for a group-subgroup pair. J. Appl. Cryst., 1998, 31, P. 646.</mixed-citation><mixed-citation xml:lang="en">Kroumova E., Perez-Mato J. M., Aroyo M. I. WYCKSPLIT: a computer program for determination of the relations of Wyckoff positions for a group-subgroup pair. J. Appl. Cryst., 1998, 31, P. 646.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.</mixed-citation><mixed-citation xml:lang="en">Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Artyukhov V. I., Chernozatonskii L. A. Structure and Layer Interaction in Carbon Monofluoride and Graphane: A Comparative Computational Study. The Journal of Physical Chemistry A, 2010, 114 (16), P. 5389–5396.</mixed-citation><mixed-citation xml:lang="en">Artyukhov V. I., Chernozatonskii L. A. Structure and Layer Interaction in Carbon Monofluoride and Graphane: A Comparative Computational Study. The Journal of Physical Chemistry A, 2010, 114 (16), P. 5389–5396.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Giannozzi P., Baroni S., et al . QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials. Journal of Physics: Condensed Matter, 2009, 21 (39), P. 395502.</mixed-citation><mixed-citation xml:lang="en">Giannozzi P., Baroni S., et al . QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials. Journal of Physics: Condensed Matter, 2009, 21 (39), P. 395502.</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Balaban A. T., Klein D. J., Seitz W. A. Holes in diamond or carbon nitride lattices. International Journal of Quantum Chemistry, 1996, 60 (5), P. 1065–1068.</mixed-citation><mixed-citation xml:lang="en">Balaban A. T., Klein D. J., Seitz W. A. Holes in diamond or carbon nitride lattices. International Journal of Quantum Chemistry, 1996, 60 (5), P. 1065–1068.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Clay W. A., Dahl J. E. P., Carlson R. M. K., Melosh N. A., Shen Z.-X. Physical properties of materials derived from diamondoid molecules. Reports on Progress in Physics, 2015, 78 (1), P. 016501.</mixed-citation><mixed-citation xml:lang="en">Clay W. A., Dahl J. E. P., Carlson R. M. K., Melosh N. A., Shen Z.-X. Physical properties of materials derived from diamondoid molecules. Reports on Progress in Physics, 2015, 78 (1), P. 016501.</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Garcia J. C., Assali L. V. C., Machado W. V. M., Justo J. F. Crystal engineering using functionalized adamantane. Journal of Physics: Condensed Matter, 2010, 22 (31), P. 315303.</mixed-citation><mixed-citation xml:lang="en">Garcia J. C., Assali L. V. C., Machado W. V. M., Justo J. F. Crystal engineering using functionalized adamantane. Journal of Physics: Condensed Matter, 2010, 22 (31), P. 315303.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Garcia J. C., Justo J. F., Machado W. V. M., Assali L. V. C. Functionalized adamantane: Building blocks for nanostructure self-assembly. Phys. Rev. B, 2009, 80 (12), P. 125421.</mixed-citation><mixed-citation xml:lang="en">Garcia J. C., Justo J. F., Machado W. V. M., Assali L. V. C. Functionalized adamantane: Building blocks for nanostructure self-assembly. Phys. Rev. B, 2009, 80 (12), P. 125421.</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Mujica A., Rubio A., Muñoz A., Needs R. J. High-pressure phases of group-IV, III-V, and II-VI compounds. Rev. Mod. Phys., 2003, 75 (3), P. 863–912.</mixed-citation><mixed-citation xml:lang="en">Mujica A., Rubio A., Muñoz A., Needs R. J. High-pressure phases of group-IV, III-V, and II-VI compounds. Rev. Mod. Phys., 2003, 75 (3), P. 863–912.</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Johnston R. L., Hoffmann R. Superdense carbon, C8: supercubane or analog of γ-silicon? Journal of the American Chemical Society, 1989, 111 (3), P. 810–819.</mixed-citation><mixed-citation xml:lang="en">Johnston R. L., Hoffmann R. Superdense carbon, C8: supercubane or analog of γ-silicon? Journal of the American Chemical Society, 1989, 111 (3), P. 810–819.</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Correa A. A., Bonev S. A., Galli G. Carbon under extreme conditions: Phase boundaries and electronic properties from first-principles theory. Proceedings of the National Academy of Sciences, 2006, 103 (5), P. 1204–1208.</mixed-citation><mixed-citation xml:lang="en">Correa A. A., Bonev S. A., Galli G. Carbon under extreme conditions: Phase boundaries and electronic properties from first-principles theory. Proceedings of the National Academy of Sciences, 2006, 103 (5), P. 1204–1208.</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Mailhiot C., Yang L. H., McMahan A. K. Polymeric nitrogen. Phys. Rev. B, 1992, 46 (22), P. 14419–14435.</mixed-citation><mixed-citation xml:lang="en">Mailhiot C., Yang L. H., McMahan A. K. Polymeric nitrogen. Phys. Rev. B, 1992, 46 (22), P. 14419–14435.</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Brazhkin V. V. Metastable phases, phase transformations, and phase diagrams in physics and chemistry. Physics-Uspekhi, 2006, 49 (7), P. 719.</mixed-citation><mixed-citation xml:lang="en">Brazhkin V. V. Metastable phases, phase transformations, and phase diagrams in physics and chemistry. Physics-Uspekhi, 2006, 49 (7), P. 719.</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Brazhkin V. V. Interparticle interaction in condensed media: some elements are ’more equal than others’. Physics-Uspekhi, 2009, 52 (4), P. 369.</mixed-citation><mixed-citation xml:lang="en">Brazhkin V. V. Interparticle interaction in condensed media: some elements are ’more equal than others’. Physics-Uspekhi, 2009, 52 (4), P. 369.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
