Synthesis, complexation, and E—Z photoisomerization of azadithiacrown-containing styryl dyes as new optical sensors for mercury cations
作者:E. V. Tulyakova、O. A. Fedorova、Yu. V. Fedorov、G. Jonusauskas、L. G. Kuz’mina、J. A. K. Howard、A. V. Anisimov
DOI:10.1007/s11172-007-0082-4
日期:2007.3
New styryldyes containing azadithia-15-crown-5 fragments were synthesized. The complexation of these compounds with Ag+, Pb2+, Cu2+, Hg2+, and H+ cations was studied by 1H NMR spectroscopy, steady-state, and time-resolved spectroscopy. The stability constants of the complexes were calculated from the spectrophotometric titration data. The photophysical properties and E—Z photoisomerization of styryl
Focused Fluorescent Probe Library for Metal Cations and Biological Anions
作者:Hyun-Woo Rhee、Sang Wook Lee、Jun-Seok Lee、Young-Tae Chang、Jong-In Hong
DOI:10.1021/co400034x
日期:2013.9.9
A focusedfluorescentprobelibrary for metalcations was developed by combining metal chelators and picolinium/quinolinium moieties as combinatorial blocks connected through a styryl group. Furthermore, metal complexes derived from metal chelators having high binding affinities for metalcations were used to construct a focusedprobelibrary for phosphorylated biomolecules. More than 250 fluorescent
From Virtual to Physical: Integration of Chemical Logic Gates
作者:Ruslan Guliyev、Seyma Ozturk、Ziya Kostereli、Engin U. Akkaya
DOI:10.1002/anie.201104228
日期:2011.10.10
Integration by parts: advanced information processing at the molecular level requires integrated logicgates, which has to date been possible only virtually. Now, two independently working AND molecular logicgates are brought together by "click" chemistry to form integrated logicgates which respond exactly as predicted from such an integration scheme.
An Azacrown[N,S,O]–Styryl Modified Boron–Phenylpyrrin: Coordination‐Mode‐Transition‐Induced Colorimetric and OFF–ON–OFF Fluorescence Chemosensor for Quantifying Cu
<sup>2+</sup>
first coordinated with the p-azacrown[N,S,O] moiety of C-BPP-A, forming the 1:1 Cu2+-C-BPP-A complex and leading to the significant enhancement in fluorescence emission at 621 nm. Subsequently, the N atom of the diethylamino group from the Cu2+-C-BPP-A complex coordinates with the Cu2+ added (1-2 equiv.), forming a M2L type of complex, which induces the fluorescence quenching of the 1:1 Cu2+-C-BPP-A complex