All starting materials were purchased from commercial suppliers. Rhodamine 6G and 2,7-dihydroxynaphthalene-1-carbaldehyde were purchased from Sigma Aldrich (Burlington, MA, USA), 80% hydrazine from TCI (VWR), and uranyl nitrate hexahydrate from Fisher Scientific (Pittsburgh, PA, USA). Solvents were reagent/ ACS-grade and were purchased from VWR, Radnor, PA, USA. Rhodamine 6G hydrazide was synthesized as described previously in the literature [13 (link)].
The IR spectrum was recorded on a Perkin Elmer Spectrum 100 FT-IR, UV-Vis spectra were recorded on a Shimadzu UV-2600i, mass spectrometry was run via direct infusion in pos ESI on an Agilent 6530 QToF HRMS, NMR spectra were collected on a Bruker AXR 500 MHz spectrometer in dimethylsulfoxide-d6 solution with reference to residual solvent signals (DMSO-d6, δ = 2.50 ppm for 1H and 39.52 ppm for 13C). X-ray diffraction data were collected on a Bruker APEX 2 CCD platform diffractometer [Mo Kα (λ = 0.71073 Å)].
The IR spectrum was recorded on a Perkin Elmer Spectrum 100 FT-IR, UV-Vis spectra were recorded on a Shimadzu UV-2600i, mass spectrometry was run via direct infusion in pos ESI on an Agilent 6530 QToF HRMS, NMR spectra were collected on a Bruker AXR 500 MHz spectrometer in dimethylsulfoxide-d6 solution with reference to residual solvent signals (DMSO-d6, δ = 2.50 ppm for 1H and 39.52 ppm for 13C). X-ray diffraction data were collected on a Bruker APEX 2 CCD platform diffractometer [Mo Kα (λ = 0.71073 Å)].