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Nanotubes from Isomeric Dibenzoylmethane Molecules
Author(s) -
Zhao Liyun,
Yang Wensheng,
Luo Yi,
Zhai Tianyou,
Zhang Guangjin,
Yao Jiannian
Publication year - 2005
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200401265
Subject(s) - dibenzoylmethane , enol , fluorescence , monomer , molecule , materials science , dbm , photochemistry , membrane , nanotechnology , chemistry , organic chemistry , catalysis , optoelectronics , polymer , optics , amplifier , physics , cmos , biochemistry
Organic nanotubes of various diameters were fabricated from the isomeric molecule dibenzoylmethane (DBM) by using an immersing technique with ordered porous alumina membrane as the template. The ratio of the enol isomers of DBM increased as the diameters of the nanotubes decreased. In addition, although almost no fluorescence could be detected for the DBM monomer, a striking enhancement in the fluorescence emission intensity of the nanotubes was observed as the diameters decreased. This is due to the increased ratio of the enol isomers.