To activate electronic and optical functions of the redox‐active metal–organic framework, (Me₂NH₂)[In^III(TTFTB)]⋅0.7 C₂H₅OH⋅DMF (Me₂NH₂@1, TTFTB=tetrathiafulvalene‐tetrabenzoate, DMF=N,N‐dimethylformamide), has been exchanged by tetrathiafulvalenium (TTF^.+) and N,N′‐dimethyl‐4,4′‐bipyridinium (MV²⁺). These cations provide electron carriers and photosensitivity. The exchange retains the crystallinity allowing single‐crystal to single‐crystal post‐synthetic transformation to TTF@1 and MV@1. Both TTF^.+ and MV²⁺ enhance the electrical conductivity by a factor of 10² and the visible light induced photocurrent by 4 and 28 times, respectively. EPR evidences synergetic effect involving charge transfer between the framework redox‐active TTFTB bridges and MV²⁺. The results demonstrate that functionalization of MOF by cation exchange without perturbing the crystallinity extends possibilities to achieve switchable materials.

中文翻译：

---

在基于氧化还原活性四硫富富瓦烯的金属有机框架内通过阳离子交换调节电导和光电导。

到氧化还原活性金属-有机骨架的激活电子和光学功能，（ME ₂ NH ₂）[在^III（TTFTB）]⋅0.7Ç ₂ ħ ₅ OH⋅DMF（ME ₂ NH ₂ @ 1，TTFTB =四硫富瓦四苯甲酸酯（DMF = N，N-二甲基甲酰胺）已被四硫富瓦烯鎓（TTF ^。+）和N，N'-二甲基-4,4'-联吡啶（MV ²⁺）交换。这些阳离子提供电子载流子和光敏性。交换保留了结晶度，允许从单晶到单晶的合成后转化为TTF @1和MV @ 1。TTF ^。+和MV ^2+都将电导率提高了10 ²倍，可见光诱导的光电流分别提高了4倍和28倍。EPR证明协同效应涉及框架氧化还原活性TTFTB桥和MV ²⁺之间的电荷转移。结果表明，在不影响结晶度的情况下通过阳离子交换对MOF进行功能化扩展了获得可切换材料的可能性。