A Tetrathiafulvalene/Naphthalene Diimide-Containing Metal–Organic Framework with <i>fsc</i> Topology for Highly Efficient Near-Infrared Photothermal Conversion
Tong Yan, Yuyang Li, Qinyi Gu, Jing Li, Jian Su, Haiying Wang, Jing‐Lin Zuo
Abstract
Metal–organic frameworks (MOFs) provide broad prospects for the development of new photothermal conversion materials, while their design and synthesis remain challenging. A new Zn-MOF (1) containing both tetrathiafulvalene (TTF) as an electron donor and naphthalene diimide (NDI) as an electron acceptor was constructed by using a space limiting effect. The material exhibited wide absorption peaks in the near-infrared region, indicating that there was strong charge transfer interaction between the TTF and NDI units and providing the possibility of photothermal conversion. 1 shows efficient near-infrared photothermal conversion performance. Under 808 nm laser (0.4 W cm–2) illumination, the temperature of 1 increased rapidly from room temperature to 250 °C, with good thermal stability and cycle durability. This work provides an efficient strategy for promising materials in photothermal therapy.