2010 Fiscal Year Final Research Report
Construction of Topological Supramolecules Utilizing Complementary Salt Bridge Formation and Their Application
| Project/Area Number |
20559001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
FURUSHO Yoshio Nagoya University, 工学研究科, 准教授 (00281270)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 超分子化学 |
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| Research Abstract |
A hetero-stranded double helix with a controlled helix sense was designed and synthesized from an optically active dimeric amidine and its complementary achiral dicarboxylic acid strand with conjugated m-diethynylbenzene backbones, being stabilized by the salt bridges. The dimerization of carboxylic acid derivatives bearing an amino or a formyl group at one end was significantly enhanced in benzene in the presence of an optically active amidine dimer to afford a complementary double helix stabilized with salt bridges. An optically active [2]catenane was synthesized by utilizing amidinium-carboxylate salt bridge. The relative motion of the two macrocyclic components was completely controlled by an acid/base or Zn^<2+>/cryptand control.
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