Yu Enakieva Yulia, Sinelshchikova Anna A, Grigoriev Mikhail S, Chernyshev Vladimir V, Kovalenko Konstantin A, Stenina Irina A, Yaroslavtsev Andrey B, Gorbunova Yulia G, Yu Tsivadze Aslan
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4, Leninskiy prosp., Moscow, 119071, Russian Federation.
Department of Chemistry, Lomonosov Moscow State University, 1-3, Leninskie Gory, Moscow, 119991, Russian Federation.
Chemistry. 2021 Jan 21;27(5):1598-1602. doi: 10.1002/chem.202003893. Epub 2020 Dec 23.
A novel metal-organic framework [Zn (Ni-H TPPP)(Ni-H TPPP)(Ni-H TPPP)⋅7(CH ) NH ⋅DMF⋅7 H O] (where Ni-H TPPP (x=2,4,5) are partially deprotonated [5,10,15,20-tetrakis(3-(phosphonatophenyl)-porphyrinato(2-))]nickel(II) species), IPCE-2Ni, with outstanding proton conductivity (1.0×10 S cm at 75 °C and 95 % relative humidity) has been obtained. The high concentration of free phosphonate groups and compensating dimethylammonium cations bound by hydrogen bonds in the unique crystal structure of IPCE-2Ni is a key factor responsible for the observed high proton conductivity, which is one order of magnitude higher than for the corresponding MOF based on 5,10,15,20-tetrakis(4-(phosphonatophenyl)porphyrinato(2-))]nickel(II) IPCE-1Ni and comparable with that of leaders among MOFs.
一种新型金属有机框架化合物[Zn (Ni-H TPPP)(Ni-H TPPP)(Ni-H TPPP)⋅7(CH ) NH ⋅DMF⋅7 H O]（其中Ni-H TPPP（x=2,4,5）为部分去质子化的[5,10,15,20-四（3-（膦酰基苯基）-卟啉（2-））]镍（II）物种），即IPCE-2Ni，已被制备出来，其具有出色的质子传导率（在75 °C和95%相对湿度下为1.0×10 S cm）。在IPCE-2Ni独特的晶体结构中，高浓度的游离膦酸基团以及通过氢键结合的补偿性二甲基铵阳离子是导致观察到的高质子传导率的关键因素，该传导率比基于[5,10,15,20-四（4-（膦酰基苯基）卟啉（2-））]镍（II）的相应金属有机框架化合物IPCE-1Ni高一个数量级，且与金属有机框架化合物中的领先者相当。
