Synthesis of N,N,N-4,4"-Di-(4-methylphenyl)-2,2':6',2"- terpyridine-N,N,N-tris(isothiocyanato) Ruthenium(Ⅱ) and Application to Colorimetric Hg^2+ Sensor

A terpyridine derivative DPTP [di-(4-methylphenyl)-2,2':6',2"-terpyridine] was conveniently synthesized from 2-bromopyridine via halogen-dance reaction, Kharash coupling and Stille coupling reaction. Then its corresponding ruthenium complex Ru-DPTP [N,N,N-4,4''-di-(4-methy,phenyl)-2,2':6',2"-terpyri...

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Veröffentlicht in:Chinese journal of chemistry 2007, Vol.25 (2), p.186-189
1. Verfasser: 李襄宏 刘志强 李富友 段新方 黄春辉
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Sprache:eng
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Zusammenfassung:A terpyridine derivative DPTP [di-(4-methylphenyl)-2,2':6',2"-terpyridine] was conveniently synthesized from 2-bromopyridine via halogen-dance reaction, Kharash coupling and Stille coupling reaction. Then its corresponding ruthenium complex Ru-DPTP [N,N,N-4,4''-di-(4-methy,phenyl)-2,2':6',2"-terpyridine-N,N,N-tris(is,-thi,cyanat,)- ruthenium(H) ammonium] was obtained and fully characterized by IR, UV-Vis, ESI MS and elemental analysis. The MLCT absorption band of Ru-DPTP was blue-shifted from 570 to 500 nm upon addition of Hg^2+. Among a series of surveyed metal ions, the complex showed a unique recognition to Hg^2+, indicating that it can be used as a selective colorimetric sensor for Hg^2+.
ISSN:1001-604X
1614-7065