Drx 500 avance ft nmr instrument

All of the chemicals were purchased from commercial sources and used without further purification. Cu₂(BDC)₂(DABCO) was synthesized according to a previously reported procedure.^{37 (link)} All of the reactions were monitored by thin layer chromatography (TLC) using plates coated with Merck 60 HF254 silica under UV light. The BET (Brunauer–Emmett–Teller) surface area of the samples was determined from N₂ adsorption–desorption isotherms using a micromeritics ASAP 2020 analyzer. The sample was characterized using a ZEISS scanning electron microscope (SEM) at 30 kV with a gold coating. Transmission electron microscopy (TEM) was carried out using an EM10C-100 kV series microscope from the Zeiss Company, Germany. A TGA/DSC (thermogravimetric analysis & differential scanning calorimetry) by METTLER TOLEDO, Switzerland, was used for thermogravimetric analysis (TGA) with a heating rate of 10 °C min⁻¹ under a nitrogen atmosphere. FT-IR spectra were recorded using a Shimadzu 8400s FT-IR spectrometer. ¹H-NMR spectra were recorded with a BRUKER DRX 500-AVANCE FT-NMR instrument (CDCl₃ solution) at 500 MHz.

All chemicals were purchased from commercial sources and used without further purification. Cu₂(BDC)₂(DABCO) was synthesized according to our previously reported procedure.^23a All reactions were monitored by thin-layer chromatography (TLC) using plates coated with Merck 60 HF254 silica under ultraviolet (UV) light. Infrared (IR) spectra were recorded using a Shimadzu 8400s Fourier-transform (FTIR) spectrometer. ¹H-nuclear magnetic resonance (NMR) and ¹³C-NMR spectra were recorded using a BRUKER DRX 500-AVANCE FT-NMR instrument (CDCl₃ solution) at 500 and 125 MHz, respectively. scanning electron microscope (SEM) images were captured with a ZEISS scanning electron microscope at 30 kV with gold coating.