Romain Wernert, Robert D. Smyth, Michael A. Hayward. "Synthesis of the Double Infinite-Layer Ni(I) Phase La
                    <sub>3</sub>
                    Ni
                    <sub>2</sub>
                    O
                    <sub>5</sub>
                    F via Sequential Topochemical Reactions." Journal of the American Chemical Society, 2026. doi:10.1021/jacs.5c16740