Joint Synthesis of Small Carbon Molecules (C<SUB>3</SUB>-C<SUB>11</SUB>), Quasi-Fullerenes (C<SUB>40</SUB>, C<SUB>48</SUB>, C<SUB>52</SUB>) and their Hydrides

Abstract

Earlier small carbon molecules C<SUB>2</SUB>- C<SUB>13</SUB> as cations and аnions in hot carbon plasma and flame gases were detected only. From large amount of quasi-fullerenes (C<SUB>20 < n < 60</SUB>) revealed in mass spectra of carbon vapor only C<SUB>20</SUB> and C<SUB>36</SUB><SUP> </SUP>were synthesized. Therefore problem of creation of new methods for synthesis of carbon molecules is considered extremely important. By us new reactionary conditions of pyrolysis of hydrocarbons, in particular benzene is developed. A main distinctive feature of this pyrolysis is opportunity of separate localization of condensed products and soot. Mass spectra of toluene and ethanol solutions of obtained products contain intensive peaks with m/z values appropriate anions of small molecules (C<SUB>3</SUB> – C<SUB>20</SUB>), them hydrides (C<SUB>5</SUB>H<SUB>2</SUB>, C<SUB>10</SUB>Н<SUB>4</SUB>, C<SUB>14</SUB>H<SUB>4</SUB>, C<SUB>16</SUB>H<SUB>8</SUB>,<SUB> </SUB>C<SUB>18</SUB>Н<SUB>2</SUB>) and cations of molecules (C<SUB>6</SUB>, C<SUB>7</SUB>, C<SUB>15</SUB>, C<SUB>17</SUB>). For the first time in products of pyrolysis quasi-fullerenes C<SUB>40</SUB>, C<SUB>48</SUB>, C<SUB>52</SUB>, C<SUB>54</SUB>, C<SUB>56</SUB> and C<SUB>58</SUB> are found out. Thus, small carbon molecules and quasi-fullerenes in reactionary<b> </b>conditions excluding carbon evaporation can be formed.