SrCdSnQ4 (Q = S and Se): infrared nonlinear optical chalcogenides with mixed NLO-active and synergetic distorted motifs

Two new infrared (IR) nonlinear optical (NLO) chalcogenides, SrCdSnQ₄ (Q = S and Se) (1 and 2), were obtained by mixing NLO-active metal chalcogenides and d¹⁰ metal tetrahedral motifs in an alkali metal-containing system.