Time and Sfcace Control of Reactive Complexes of Carbon and Heavy-Elements

2006 Fiscal Year Final Research Report Summary

• Project/Area Number: 14078220
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Hiroshima University
• Principal Investigator: YAMAMOTO Yohsuke Hiroshima University, Graduate School of Science, Professor, 大学院理学研究科, 教授 (50158317)
• Project Period (FY): 2002 – 2005
• Keywords: hypervalent / carbon / boron

Research Abstract

Recently, we reported synthesis and isolation of hypervalent pentacoordinate carbon compounds and hypervalent pentacoordinate boron compounds bearing a rigid anthracene skeleton and a relatively flexible van Koten skeleton. Although the X-ray analysis and density functional calculation of these compounds clearly showed the attractive interaction between the central carbon (boron) and the two coordinating oxygen atoms, these interactions are weak based on the distance and the values from AIM analysis. Thus, we designed a novel tridentate ligand bearing a benzene ring condensed with two seven membered rings in the hope of stronger interaction between the central atom and the coordinating sulfur atoms. We could obtain pentacoordinate carbon compound, but tetracoordinate compounds, where only one of the sulfur atom was coordinating toward the central carbon, were also obtained by changing the substituents on the central carbon atom.

Research Products

• [Journal Article] Syntheses and Structures of Hypervalent Pentacoordinate Carbon and Boron Compounds Bearing an Anthracene Skeleton-Elucidation of Hyperavalent Interaction Based on X-ray Analysis and DFT Calculation, (2005)
  • Author(s): Yamashita, M, Yamamoto, Y, Akiba, K.-y, Hashizume, D, Iwasaki, F, Takagi, N, Nagase, S
  • Journal Title: J. Am. Chem. Soc. 127 Pages: 4354-4371
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Synthesis and Characterization of Stable Hypervakalent Carbon Compounds (10-C-5) Bearing a 2,6-Bis(ρ-substituted phenyloxymethyl)benzene Ligand (2005)
  • Author(s): Akiba, K.-y, Moriyama, Y, Mizozoe, M, Inohara, H, Nishii, T, Yamamoto, Y, Minoura, M, Hashizume, D, Iwasaki, F, Takagi, N, Ishimura, K, Nagase, S
  • Journal Title: J. Am. Chem. Soc. 127 Pages: 5893-5901
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Synthesis and Structures of 16 π Octaalkyltetraphenylporphyrins (2005)
  • Author(s): Yamamoto, Y, Yamamoto, A, Furuta, S-y, Horie, M, Kodama, M, Sato W, Akiba, K.-y, Tsuzuki, S, Uchimaru, T, Hashizume, D, Iwasaki, F
  • Journal Title: J. Am. Chem. Soc. 127 Pages: 14540-14541
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Syntheses and Structures of Hypervalent Pentacoordinate Carbon and Boron Compounds Bearing an Anthracene Skeleton-Elucidation of Hyperavalent Interaction Based on X-ray Analysis and DFT Calculation, (2005)
  • Author(s): Yamashita, M., Yamamoto.Y.: Akiba, K.-y., Hashizume, D., Iwasaki, F., Takagi, N., Nagase, S
  • Journal Title: J. Am. Chem. Soc 127 Pages: 4354-4371
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Synthesis and Characterization of Stable Hypervalent Carbon Compounds (10-C-5) Bearing a 2,6-Bis(p-substituted phenyloxymethyl)benzene Ligand (2005)
  • Author(s): Akiba, K.-y., Moriyama, Y., Mizozoe, M., Inohara, H., Nishii, T., Yamamoto.Y.: Minoura, M., Hashizume, D., Iwasaki, F., Takagi, N., Ishimura, K., Nagase, S.
  • Journal Title: J. Am. Chem. Soc 127 Pages: 5893-5901
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Synthesis and Structure of 16 n Octaalkyltetraphenylporphyrins (2005)
  • Author(s): Yamamoto.Y.: Yamamoto, A, Furuta, S.-y., Horie, M., Kodama, M., Sato, W., Akiba, K.-y., Tsuzuki, S., Uchimaru, T., Hashizume, D., Iwasaki, F.
  • Journal Title: J. Am. Chem. Soc 127 Pages: 14540-14541
  • Description: 「研究成果報告書概要(欧文)」より