“…As shown in Figure 3c, FUT-1a adsorbs more C 2 H 2 than CO 2 in the full pressure region, and the uptake capacity increases with the decreasing temperature. The C 2 H 2 adsorbed amounts of 153.7 and 120.2 cm 3 /g at 273 and 296 K, respectively, which is higher than those in many famous MOFs with excellent separation performance, such as UTSA-74a (108.2 cm 3 /g), 26 JCM-1(75.0 cm 3 /g), 27 FeNi-M′MOF (96.1 cm 3 /g), 28 CPL-1-NH 2 (41.2 cm 3 /g) 29 ATC-Cu (112.2 cm 3 /g), 30 ZJU-74a (85.7 cm 3 /g), 31 ZJNU-13 (118.4 cm 3 /g), 32 and slightly lower than those for FJU-90 (180.0 cm 3 /g), 25 SNNU-45 (134.0 cm 3 /g), 33 ZJNU-117 (153.1 cm 3 / g), 34 and ZJU-60a (150.6 cm 3 /g) 35 under ambient conditions. In addition, we found that one unit cell of FUT-1a can adsorb 88 C 2 H 2 molecules, which is very close to 94 adsorbed by one unit cell of HKUST-1 (201 cm 3 /g).…”