Fig. 3: Anionic group extending strategy and related materials.
From: Deep-ultraviolet nonlinear optical crystals: concept development and materials discovery
Basic NLO motifs and structural expansion from KBBF (a) and NH4B4O6F (ABF) (b) to fluoride carbonates Be2CO3F2 and KAlCO3F2 (c), hydroxyborate SrB8O15H4 (d), poly(difluorophosphazene) PNF2 (e), and nitrates, cyanurates, phosphates, sulfates (f)
