Pengxiang Zhang, Shuling Liu, Lebin Cai, Jianchun Jiang, Xiaoyang Zhao, Xianli Wu, Baojun Li, Bao Yu Xia, Yanyan Liu. "Axial Phosphate Coordination Driven Spin State Change in FeN
                    <sub>4</sub>
                    Site for Stable Oxygen Reduction." Angewandte Chemie International Edition (2026). https://doi.org/10.1002/anie.202524529