New near-infrared-absorbing acidochromic dyes and their application in sensor techniques

被引：27

作者：

Czerney, P ^{[1
]}

Grummt, UW ^{[1
]}

机构：

[1] UNIV JENA,INST PHYS CHEM,D-07743 JENA,GERMANY

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1997年 / 39卷 / 1-3期

关键词：

functional NIR dyes; acidochromism; optodes;

D O I：

10.1016/S0925-4005(97)80241-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

New stable acidochromic near-infrared absorbing dyes are described, which are useful for the design of optodes. The dyes belong to the classes of 2-(4-hydroxyphenyl)-1-benzopyrylium salts, 9-[3-(pyranylidene)-propenyl]-7-diethylamino-1-benzopyrylium salts, 9-[3-(thiopyranylidene)- and 9-[3-(1-benzopyranylidene)-propenyl]-acridinium salts, and 9-(4-diallrylaminostyryl)-acridinium salts. Apparent pK(a) values in water/2-propanol mixtures are in the range 1 less than or similar to PK less than or similar to 8. Absorption maxima of the long-wavelength absorbing forms span the region from 600 to 900 nm.

引用

页码：395 / 400

页数：6

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