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Yaghi´óÉñ£º¡¶Rod Packings and Metal-Organic Frameworks Constructed from Rod-Shaped Secondary Building Units¡· J. AM. CHEM. SOC. 2005, 127, 1504-1518 ¸½£ºCo-MOF-71µÄÖÆ±¸£º Co(1,4-BDC)(DMF): MOF-71. A solid mixture of Co(NO3)2 6H2O (40 mg, 0.137 mmol) and 1,4-benzenedicarboxylic acid (23 mg, 0.137 mmol) was dissolved in DMF (1 mL) and absolute EtOH (0.25 mL). The resulting solution was transferred with a pipet into a Pyrex tube, frozen in a N 2(l) bath, evacuated (200 mTorr), and flame-sealed. The sealed reaction tube was heated for 15 h in a 100 ¡ãC isotemp oven. The tube, containing pink blocklike crystals and purple hexagonal platelike crystals, was removed from the oven while hot. The mixture of crystals was collected and washed with DMF (3 mL 3). The two crystalline phases were separated by density (CHBr 3 /CH 2 Cl 2 ), and the pink blocklike crystals (17 mg, 84% based on H 2 BDC) were character- ized. Anal. Calcd for C 11 H 11 NO 5 Co ) MOF-71: C, 44.61; H, 3.74; N, 4.73. Found: C, 43.37; H, 3.45; N, 4.26. FT-IR (KBr 4000-400 cm-1 ): 3441 (br), 3072 (w), 2946 (w), 2814 (w), 1636 (m), 1586 (m), 1389 (s), 1118 (w), 1017 (w), 820 (w), 747 (m), 671 (w), 538 (w), 430 (w). СµÜÓÊÏ䣺davidwhen@163.com ÏÈл¹ý£¡ IR-Co-MOF-71.jpg Co-MOF-71.jpg |
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