Fullerene derivatives resulting from an unexpected Diels-Aldercycloaddition have been obtained by reaction of trans-2-stilbenecarboxaldehyde derivatives with N-methylglycine and C60.
Two-Photon Dyes Containing Heterocyclic Rings with Enhanced Photostability
作者:Hwan Myung Kim、Wen Jun Yang、Chang Ho Kim、Won-Hwa Park、Seung-Joon Jeon、Bong Rae Cho
DOI:10.1002/chem.200500341
日期:2005.10.21
donor-pi-donor derivatives containing phenyl, naphthyl, and anthryl groups as the pi-center and heterocyclicrings as the conjugation bridge have been synthesized and their one- and two-photon spectroscopic properties and photostability were determined. These compounds show bathochromic shifts in the absorption and emission spectra, larger two-photon cross-section, and enhancedphotostability in comparison to
Two-Photon Sensor for Metal Ions Derived from Azacrown Ether
作者:Hwan Myung Kim、Mi-Yun Jeong、Hyun Cheol Ahn、Seung-Joon Jeon、Bong Rae Cho
DOI:10.1021/jo049124a
日期:2004.8.1
A two-photon sensor for the metal ions derived fromazacrownether as the receptor is reported. The sensor emits strong two-photon fluorescence when excited by 800 nm laser photons. Moreover, the binding constants measured by the one- and two-photon fluorescence are similar. This result may be useful for the design of efficient two-photon fluorescence probes for biological substrates.