Macroscopic production and isolation of ring-form carbon clusters

2015 Fiscal Year Final Research Report

• Project/Area Number: 26600006
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nanostructural chemistry
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: Shiromaru Haruo 首都大学東京, 理工学研究科, 教授 (70196632)
• Co-Investigator(Kenkyū-buntansha): Kodama Takeshi 首都大学, 東京理工学研究科, 准教授 (20285092) ; Wakabayashi Tomonari 近畿大学, 理工学部, 教授 (30273428)
• Research Collaborator: Joseph Sanderson University of Waterloo, Physics and Astronomy, Associate Professor ; Endo Hitomi 首都大学, 東京理工学研究科, 大学院生 ; Taguchi Yuki 首都大学, 東京理工学研究科, 大学院生
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 炭素クラスター / ポリイン / フラーレン / レーザー蒸発

Outline of Final Research Achievements

Graphite laser ablation was conducted and the products carried by argon gas flow were captured by an organic solvent. Then the solution was analyzed with UV absorption spectroscopy and HPLC, to identify and evaluate the yields of carbon-rich species. Special care was focused on monocyclic ring clusters. First, we confirmed that the soluble C60 was formed by the room temperature laser ablation. The absolute yield was found to be 1-2 order high than the value extrapolated from the yield at high-temperatures. Polyyne formation by H-capping reaction of the chain-form carbon clusters. The solution obtained under the condition that the fullerenes and polyynes coexist did not contain detectable amount of ring-form carbon clusters.

Free Research Field

物理化学