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[摘要]:Chirality transcription and amplification by the formation of chiral [2] pseudorotaxanes by an achiral crown ether having the 2',2 ''-quaterphenyl group and chiral sec-ammonium ions are reported. It was revealed that the absolute configurations of the chiral sec-ammonium ions can be detected directly from the CD spectra of the chiral [2] pseudorotaxanes. |
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