| Project/Area Number |
18550131
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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 | Toho University |
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Principal Investigator |
HABATA Yoichi Toho University, Faculty of Science, Professor (40218524)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥4,430,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥630,000)
Fiscal Year 2007: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2006: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | Cvclene / Silver ion / Comnlexation / Sunlamolecules / Carnivorous plant / Silver-pi interactions / Cycicic lieands / Aromatic ring / 銀 / 芳香族 / 分子認識 |
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| Research Abstract |
We have synthesized (A) chiral armed-cyclens having four aromatic rings, (B) C2v symmetrical armed-cyclens having two kinds of aromatic rings, and (C) armed-cyclens having an additional binding site in the side-arms.
Project A:
Two kinds chiral armed-cyclens, (i) which have a chiral site at cyclen ring and (ii) which have a chiral sited at a side-arm, have been prepared. Drastic increase of chirality was observed by CD spectra, when the ligands form complexes with Ag^+.
Project B :
New ligands having C2v symmetrical armed-cyclens having two kinds of aromatic (FORGOT A rings, 3, 5-difluorobenzylanddifluorobenzyl and 4-(4-pyrydyl)benzyl group were prepared. From the cold ESIMS, 1H NMR titration experiments and X-ray structures suggested that the ligand form 3 : 5 (ligand : Ag^+) complex. The shape of the complex is looks like nano-trefoil.
Project C:
New ligands having ethyleneoxy units at the aromatic side-arms have been prepared. Cold ESIMS suggested that the complexing abilities of ligands toward alkali metal cations increased when the ligand form Ag^+ complex.
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