A novel class of salts for second harmonic generation

Abstract

A new class of hydrogen-bonded dihydrogenphosphate salts, [AH][H₂PO₄][where A = piperidine, 3-hydroxypyridine, 4-hydroxypyridine, 3-hydroxy-6-methylpyridine, 2,4,6-trimethylpyridine, benzylamine (PhCH₂NH₂), phenethylamine (PRCH₂CH₂NH₂), or 3-aminopropene], has been synthesized and demonstrated to exhibit second harmonic generation; the crystal structures of [C₅H₁₀NH₂][H₂PO₄] and [C₆H₅CH₂NH₃][H₂PO₄] are reported.