期刊
ORGANIC LETTERS
卷 13, 期 12, 页码 3186-3189出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol200946b
关键词
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资金
- Ministry of Science and Innovation of Spain [CTQ2008-00183, CSD 2006-0003]
- ICIQ Foundation
Direct attachment of two 2-ureido-4-[1H]-pyrimidinone (UPy) subunits to a 3,6-carbazolyl core gives rise to a highly viscous, supramolecular polymer. However, insertion of a methylene spacer between the UPy's and the carbazole leads to a well-defined, cyclic tetramer, in a belt-shaped arrangement, as evidenced by MALDI-TOF, DOSY, and NOESY spectra.
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