Uh4150 uv visible spectrophotometer

The MDA was analyzed using the Malondialdehyde (MDA) Content Assay Kit (Solarbio, Beijing, China) according to the manufacturer’s instructions. At the end of the reaction, the absorbance of each sample was measured at 450 nm, 532 nm and 600 nm using a UH4150 UV-Visible Spectrophotometer (Hitachi, Tokyo, Japan). The amount of MDA was calculated according to the manufacturer’ s instructions.

Powder X-ray diffraction (PXRD) patterns of the samples were acquired on a Riguku D/Max-2500PC X-ray diffractometer with Cu radiation (λ = 1.54178 Å). Fourier transform infrared (FT-IR) spectroscopy was conducted using a Bruker ALPHA II FT-IR spectrometer. X-ray photoelectron spectroscopy (XPS) analysis was obtained on an ESCALAB 250 instrument operated at 150 W and 200 eV with mono chromated Al Kα radiation. Thermogravimetric analyses (TGA) were performed on an SDT 2960 thermal analyzer from room temperature (RT) to 800 °C at a heating rate of 10 °C/min under a nitrogen atmosphere. Dynamic light scattering (DLS) data were obtained by Horiba nano Partica SZ-100V2. UV–vis absorption spectra were recorded using a Hitachi UH4150 UV–visible spectrophotometer in the range of 200–700 nm. Emission and excitation spectra at RT were recorded with an Edinburgh FLS 1000 fluorescence spectrometer, and luminescence microscopy images were recorded on an Olympus BX53 microscope. Electron paramagnetic resonance (EPR) spectra were recorded by a Bruker A 300 EPR spectrometer.

Powder X-ray diffraction (PXRD) patterns of Cu₃NC^(NHC), Cu₃NC^(BINAP), and Cu₃NC^(Pz) were recorded on a Rigaku B/Max-RB X-ray diffractometer with Cu-Kα radiation (λ = 1.5418 Å) in air at room temperature. ESI–MS images of the clusters were recorded on an AB Sciex X500R Q-TOF spectrometer. UV‒vis absorption spectra were obtained through a Hitachi UH4150 UV‒visible spectrophotometer. The X-ray diffraction data of Cu₃NC^(NHC) and Cu₃NC^(Pz) were measured on a Rigaku XtaLAB Pro diffractometer (Supplementary Tables 3 and 4).