Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
Cluster for Pioneering Research, RIKEN, RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Chem Commun (Camb). 2020 Mar 31;56(26):3717-3720. doi: 10.1039/d0cc00836b.
Triplet dynamic nuclear polarization (triplet-DNP) allows hyperpolarization at a moderate temperature. While the triplet-DNP of water is strongly desired, water-soluble triplet polarizing agents have not yet been reported. Herein, the first example of triplet-DNP of crystalline ice is demonstrated by molecularly dispersing a novel water-soluble polarizing agent into ice.
三重态动态核极化（triplet-DNP）可在中等温度下实现超极化。虽然强烈需要三重态-DNP 的水，但尚未报道水溶性三重态极化剂。本文通过将新型水溶性极化剂分子分散到冰中，首次证明了结晶冰的三重态-DNP。
