Advance neo 400

The XRD patterns were recorded on a Shimazu XRD-6100 diffractometer operated at 30 mA and 40 kV with monochromatic Cu Kα radiation. Field-emission scanning electron microscopy (FE-SEM) images were recorded on a Zeiss spra40 microscope. Prior to the measurement, the samples were coated with platinum by sputtering. Fourier-transform infrared (IR) spectra (KBr disk method) were recorded on a JASCO FT/IR-4100 spectrometer with a resolution of 2.0 cm⁻¹. Solid-state ²⁷Al nuclear magnetic resonance (NMR) spectra were recorded on a Bruker ADVANCE NEO 400 spectrometer at 103.15 MHz, and were obtained using magic angle spinning (MAS) techniques with a pulse delay of 1 s and a spinning rate of 8 kHz. Solid-state ²⁹Si NMR spectra were recorded on a JEOL ECX-400 spectrometer at 79.42 MHz, and were obtained using MAS technique with a pulse delay of 5 s and cross-polarization (CP) at a contact time of 5 ms.

NMR spectra were recorded on a Bruker Advance NEO 400; chemical shifts δ are reported in ppm, using TMS as internal standard, and coupling constants (J) are in Hz. The HRESIMS and ESIMS spectra were obtained using a Micromass Q-TOF mass spectrometer. UPLC-MS was performed on a Waters UPLC^® system (Waters Ltd., Milford, MA, USA) using a C18 column [(Waters Ltd.) ACQUITY UPLC^® BEH C18, 2.1 × 50 mm, 1.7 μm; 0.5 mL/min] and ACQUITY QDa ESIMS scan from 150 to 1000 Da. Column chromatography (CC) was performed on silica gel (Qingdao Haiyang Chemical Group Co., Qingdao, China; 200 to 300 mesh) and Sephadex LH-20 (Amersham Biosciences, Amersham, UK). TLC silica gel plates (Yan Tai Zi Fu Chemical Group Co., Yantai, China; G60, F-254) were used for thin layer chromatography. Semi-preparative HPLC was performed on a Waters 1525 system using a semi-preparative C18 column (Amsterdam, Netherlandish; Kromasil, 5 μm, 10 × 250 mm) equipped with a Waters 2996 photodiode array detector, and the flow rate was 2.0 mL/min.