含红氧活性TTF / NDI单元的电荷转移金属-有机框架，用于高效近红外光热转换。

Metal-organic frameworks (MOFs), as a class of new inorganic-organic hybrid crystal materials, may have important application in near-infrared (NIR) photothermal conversion. Herein, we obtained a new charge transfer MOF ( Co-MOF ) with mixed ligands of H 4 TTFTB and bpmNDI incorporating red-ox active tetrathiafulvalene/naphthalene diimide (TTF/NDI) units into one system. Due to the presence of TTF/NDI oxidative and reductive couples, stable radicals can be observed in the MOF. Additionally, the charge transfer from the electron donor (TTF) to the acceptor (NDI) units results in a broad absorption in NIR region. Co-MOF exhibited the efficient photothermal effect induced by irradiating with NIR laser. Under the 808 nm laser (0.5 W cm -2 ) illumination, the temperature of Co-MOF promptly increases from room temperature to 151.7 °C in only 10 s. Furthermore, a series of polydimethylsiloxane (PDMS) films doped with trace amount of Co-MOF showed efficient NIR photothermal conversion. Irradiated by 808 nm laser with power of 0.5 W cm -2 , the temperature of Co-MOF@PDMS (0.6 wt%) film can reach a plateau at 62 °C from 20 °C within 100 s. Our experimental results from Co-MOF@PDMS film demonstrates that the effectiveness and feasibility of the material in promising photothermal applications.