<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Solid solutions SrMo<sub>1‐x</sub>W<sub>x</sub>O<sub>4</sub> with 0.05 ≤ x ≤ 0.95 are solvothermally synthesized from mixtures of Sr(NO<sub>3</sub>)<sub>2</sub>, Na<sub>2</sub>MoO<sub>4</sub>, and Na<sub>2</sub>WO<sub>4</sub> in en (autoclave, 200 °C, 24 h).</p> </abstract>