Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
J Am Chem Soc. 2011 Feb 23;133(7):2034-6. doi: 10.1021/ja109810w. Epub 2011 Feb 1.
The proton conductivities of the porous coordination polymers M(OH)(bdc-R) [H(2)bdc = 1,4-benzenedicarboxylic acid; M = Al, Fe; R = H, NH(2), OH, (COOH)(2)] were investigated under humid conditions. Good correlations among pK(a), proton conductivity, and activation energy were observed. Fe(OH)(bdc-(COOH)(2)), having carboxy group and the lowest pK(a), showed the highest proton conductivity and the lowest activation energy in this system. This is the first example in which proton conductivity has been widely controlled by substitution of ligand functional groups in an isostructural series.
在潮湿条件下研究了多孔配位聚合物 M(OH)(bdc-R)[H(2)bdc = 1,4-苯二甲酸；M = Al, Fe；R = H, NH(2), OH, (COOH)(2)]的质子电导率。观察到 pK(a)、质子电导率和活化能之间存在良好的相关性。在该体系中，具有羧基和最低 pK(a)的 Fe(OH)(bdc-(COOH)(2))表现出最高的质子电导率和最低的活化能。这是首例通过在同构系列中取代配体官能团来广泛控制质子电导率的例子。
