Luminescent properties of water-soluble conjugated metallopolymers and their application to fluorescent nitric oxide detection

被引：26

作者：

Do, Loi ^{[1
]}

Smith, Rhett C. ^{[1
]}

Tennyson, Andrew G. ^{[1
]}

Lippard, Stephen J. ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 22期

关键词：

D O I：

10.1021/ic060998k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Water-soluble pi-conjugated polymers (CPs) incorporating 5,5 '-(2,2 '-dipyridyl) (CP1) or 6,6 '-( 2,2 '-dipyridyl) (CP2) units within the pi-conjugated backbone were prepared as scaffolds for macromolecular metal complexation. The response of CP emission to a range of metal ions was investigated in water, 10 mM aqueous sodium dodecyl sulfate, and acetonitrile/water (95:5). Cupric ions are the most efficient quenchers of CP emission, with K-SV = 1.1 x 10(5) and 5.2 x 10(4) M-1 in water for CP1a (40% bipyridyl monomer units) and CP1b (20% bipyridyl monomer units), respectively. Quenching is approximately twice as effective in acetonitrile/water (95:5) (K-SV = 3.1 x 10(5) M-1 for CP1a and 1.1 x 10(5) M-1 for CP1b). Partial restoration of emission was observed upon exposure of Cu(II)-CP solutions to excess NO(g) in acetonitrile/water (95:5) or 10 mM SDS(aq).

引用

页码：8998 / 9005

页数：8