Royal Society of Chemistry, Chemical Communications, 92(50), p. 14378-14381
DOI: 10.1039/c4cc05999a
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A novel three-photon probe for the imaging of exogenous Zn(II) ion in live cells with varying emission color under three-photon excitation was developed. The tuning of charge transfer state and emission color of the probe was also demonstrated in the presence of acid.