1H NMR（DMSO - d 6，δ，ppm）：7.15(d, 2H, H16); 7.28 (d, 2H, H13); 7.74 (d, 2H, H12); 7.81 (d,1H, H5); 7.86 (d, 2H, H20); 7.98 (d ... 04. 热性能 通过差示扫描量热法（DSC）在流动氮气中以 10℃/min 的升温速率从 100℃升温至 ...

Good morning. This week we’re reporting on opposing arguments regarding controversial school safety legislation, how worker safety questions linger as the Hyundai Metaplant opens, four Fort Stewart ...

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Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China ...