The kagome lattice, composed of a planar array of corner-sharing triangles, is one of the most geometrically frustrated lattices. The realization of an S = 1/2 kagome latttice antiferromagnet (KLAF) is of particular interest because it may host an intriguing form of matter, a quantum spin liquid state, which showa long-range entanglement and no magnetic ordering down to 0 K. A few S = 1/2 KLAFs exist, typically based on Cu<sup>2+</sup>, <i>d</i><sup>9</sup> compounds, though they feature structural imperfections. Herein, we present the synthesis of (CH<sub>3</sub>NH<sub>3</sub>)<sub>2</sub>NaTi<sub>3</sub>F<sub>12</sub>, which comprises an S = 1/2 kagome layer that exhibits only one crystallographically distinct Ti<sup>3+</sup>, <i>d</i><sup>1</sup> site, and one bridging fluoride. A static positional disorder is proposed for the intralayer CH<sub>3</sub>NH<sub>3</sub><sup>+</sup>. No structural phase transitions were observed from 1.8 K to 523 K. Despite its spin-freezing behavior, other features - including its negative Curie-Weiss temperature and a lack of long-range ordering - imply that this compound is a highly frustrated magnet with unusual magnetic phase behaviors.<br>
Synthesis of a d1 titanium fluoride kagome lattice antiferromagnet