| abstract |
The invention discloses a reactive near-infrared photoelectric active receptor and a synthesis method and application thereof. The chemical structural formula is: Precise design of an acylthiourea bridge to combine silarhodamine spirolactam and ferrocene into the first reactive near-infrared photoelectrically active acceptor, using Hg 2+ ion-specific desulfurization cyclization to generate 1,3,4-oxadiene azole opens the silarhodamine spirolactam ring, and realizes the selective and efficient multimodal detection of Hg 2+ ions in the aqueous phase based on UV-Vis spectroscopy, fluorescence spectroscopy, colorimetry or electrochemical analysis. The minimum detection limit is 8.4× 10‑9M . The receptor provided by the invention has good chemical and biological stability, has near-infrared color rendering ability and fluorescence response characteristics, has a wide detection pH range (pH 3.9-9.9), is especially suitable for fluorescence imaging of living cells, and has broad application prospects. |