General Remarks. 1 H NMR (500 MHz) and 13 C NMR (125 MHz) spectra were recorded on a JEOL JNM-A500 spectrometer. The 1 H NMR chemical shifts are reported in ppm downfield from tetramethylsilane (δ scale) and referenced to the internal residual DMSO-d 5 (2.50 ppm). The 13 C NMR chemical shifts are reported in ppm downfield from tetramethylsilane (δ scale) and referenced to the carbon-13 signals of DMSO-d 6 (39.52 ppm). Multiplicity of signals in 13 C NMR spectra was determined by DEPT technique.

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... Mass spectra were recorded on a Thermo Fisher Scientific EXACTIVE spectrometer. Thermogravimetric analyses (TGA) were performed on a RIGAKU Thermo plus EVO II TG8120, using a heating rate of 5 K min −1 under an N 2 atmosphere. X-ray powder diffraction (XRPD) data were collected on a Bruker AXS D8 DISCOVER with GADDS. Data were collected over the 2θ range from 4.00° to 40.20° in 0.02° steps via 600 sec scans, with Cu Kα radiation (λ = 1.54184 Å). Gas sorption isotherm measurements were performed with a BEL Japan BELSORP-max. IR spectra were recorded on a Thermo Fisher Scientific Nicolet 6700 spectrometer.