期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 4, 期 2, 页码 254-261出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.200800341
关键词
charge transfer; crystal engineering; hydrogen bonds; indicators; molecular recognition
资金
- JSPS fellowships
- Grants-in-Aid (S) for S.S., K.S., D.R.T., and Y.F.,
- Functional Innovation of Molecular Informatics
- Nanotechnology Network Project (Kyushu-area Nanotechnology Network)
- Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
A 2D colorimetric indicator array to discriminate isomers of dihydroxynaphthalene has been designed by using a crystal engineering concept combined with solid-state co-grinding and charge-transfer complexation. The N center dot center dot center dot H-O supramolecular synthon between the pyridyl N atom of the probe and hydroxy group of the analyte has been observed in all reported single-crystal X-ray structures of resultant CT complexes. Solid-state co-grinding with aromatic solids easily provided the highly concentrated solvent-free conditions required to promote the formation of charge-transfer complexes with brighter color changes. Probe D (N,N'-bis-(4-pyridyl)pyromellitic diimide) showed an excellent ability to discriminate eight isomers of dihydroxynaphthalene with a wide variety of colors of the resultant CT complexes.
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