科研之友
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摘要
The additive effects of metal cations on the fluorescence quantum yield (Phi(f)) were investigated for weak-emissive amino(tetraphenylporphyrinato)antimony(V) bromide (1). When the mu mol dm(-3) of trivalent metal cations such as Al3+, Ga3+, In3+, and Lu3+ were added to MeCN solution of 1, the Phi(f) was remarkably enhanced. The dependences of Soret band shift and Phi(f) upon the addition of trivalent metal cations revealed that a transition from S-2 state to the partially charge-shifted state was prevented by coordinating trivalent metal cations to the axial nitrogen atom of 1. 1 worked as a selective fluorosensor for detecting mu mol dm(-3) trivalent metal cations.
- 出版日期2010-1-15
