<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Hg<sub>2</sub>V<sub>2</sub>Te<sub>2</sub>O<sub>11</sub> single crystals are hydrothermally grown from a 1:1:1 molar mixture of HgO, TeO<sub>2</sub>, and NH<sub>4</sub>VO<sub>3</sub> (autoclave, 473 K, 1 week).</p> </abstract>