Abstract
A porphyrin-based `molecular square' (1), prepared by reaction of a dipyridylporphyrin species with Re(CO)5Cl and subsequently with ZnII acetate, was functionalized with 2-(methylene-15-crown-5-ether)-nicotinoyl ester (2). Functionalization was achieved by axially ligating each of the four available ZnII sites within the porphyrins. (2) was synthesized by reaction of 2-(hydroxymethyl)-15-crown-5-ether and nicotinoyl chloride in CH2Cl2. Functionalization renders the square's fluorescence emission intensity responsive to added Na+ and, to a lesser extent, K+.
Original language | English (US) |
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Pages (from-to) | 215-217 |
Number of pages | 3 |
Journal | Synthetic Metals |
Volume | 117 |
Issue number | 1-3 |
DOIs | |
State | Published - Feb 15 2001 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry