当前位置：
X-MOL 学术
›
J. Am. Chem. Soc.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Enhancing Water Stability of Metal–Organic Frameworks via Phosphonate Monoester Linkers
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2012-08-21 , DOI: 10.1021/ja306812r Jared M. Taylor 1 , Ramanathan Vaidhyanathan 1 , Simon S. Iremonger 1 , George K. H. Shimizu 1
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2012-08-21 , DOI: 10.1021/ja306812r Jared M. Taylor 1 , Ramanathan Vaidhyanathan 1 , Simon S. Iremonger 1 , George K. H. Shimizu 1
Affiliation
|
A new porous metal-organic framework (MOF), barium tetraethyl-1,3,6,8-pyrenetetraphosphonate (CALF-25), which contains a new phosphonate monoester ligand, was synthesized through a hydrothermal method. The MOF is a three-dimensional structure containing 4.6 Å × 3.9 Å rectangular one-dimensional pores lined with the ethyl ester groups from the ligand. The presence of the ethyl ester groups makes the pores hydrophobic in nature, as determined by the low heats of adsorption of CH(4), CO(2), and H(2)O (14.5, 23.9, and 45 kJ mol(-1), respectively) despite the polar and acidic barium phosphonate ester backbone. The ethyl ester groups within the pores also protect CALF-25 from decomposition by water vapor, with crystallinity and porosity being retained after exposure to harsh humid conditions (90% relative humidity at 353 K). The use of phosphonate esters as linkers for the construction of MOFs provides a method to protect hydrolytically susceptible coordination backbones through kinetic blocking.
中文翻译：
通过膦酸酯单酯连接剂提高金属-有机骨架的水稳定性
通过水热法合成了一种新的多孔金属有机骨架（MOF），四乙基-1,3,6,8-芘四膦酸钡（CALF-25），它含有一种新的膦酸酯单酯配体。MOF 是一个三维结构，包含 4.6 Å × 3.9 Å 矩形一维孔，内衬来自配体的乙酯基团。根据 CH(4)、CO(2) 和 H(2)O（14.5、23.9 和 45 kJ mol(- 1），分别）尽管具有极性和酸性的膦酸钡酯骨架。孔隙内的乙酯基团还可以保护 CALF-25 免受水蒸气分解，在暴露于恶劣的潮湿条件（353 K 时的 90% 相对湿度）后仍保持结晶度和孔隙率。
更新日期：2012-08-21
中文翻译：
通过膦酸酯单酯连接剂提高金属-有机骨架的水稳定性
通过水热法合成了一种新的多孔金属有机骨架（MOF），四乙基-1,3,6,8-芘四膦酸钡（CALF-25），它含有一种新的膦酸酯单酯配体。MOF 是一个三维结构，包含 4.6 Å × 3.9 Å 矩形一维孔，内衬来自配体的乙酯基团。根据 CH(4)、CO(2) 和 H(2)O（14.5、23.9 和 45 kJ mol(- 1），分别）尽管具有极性和酸性的膦酸钡酯骨架。孔隙内的乙酯基团还可以保护 CALF-25 免受水蒸气分解，在暴露于恶劣的潮湿条件（353 K 时的 90% 相对湿度）后仍保持结晶度和孔隙率。
京公网安备 11010802027423号