ECL performance of ruthenium tris-bipyridyl complexes covalently linked with phenothiazine through different bridge

• Three ruthenium complexes 1a, 1b and 1c were synthesized, in which the phenothiazine moiety was covalently linked to the ruthenium complex through a 4 carbon chain and amide bond, respectively. The results demonstrate that one PTZ moiety is preferred to reach a good ECL performance, and the 4 carbon chain linked complex 1a exhibits the highest ECL enhancement (up to about 9 times), in comparison with the commonly utilized parent Ru(bpy)(3)(2+), permitting a lower detection limit of 1.0 x 10(-14) M with signal to noise of 3 for 20 mM DBAE at Au electrode.

Ämnesord

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Nyckelord

Amide bond

Au electrodes

Bipyridyl

Carbon chains

Complex 1

Lower detection limit

Phenothiazine moiety

Ru(bpy)

Ruthenium complexes

Signal to noise

Amides

Insecticides

Ruthenium

Chemistry

Kemi

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