Syntheses, crystal structures and Hirshfeld surface analysis of 2-(benzyl-sulfan-yl)-5-[4-(di-methyl-amino)-phen-yl]-1,3,4-oxa-diazole and 2-[(2-chloro-6-fluoro-benz-yl)sulfan-yl]-5-[4-(di-methyl-amino)-phen-yl]-1,3,4-oxa-diazole

2-(苄基硫基)-5-[4-(二甲基氨基)苯基]-1,3,4-噁二唑和2-[(2-氯-6-氟苄基)硫基]-5-[4-(二甲基氨基)苯基]-1,3,4-噁二唑的合成、晶体结构和Hirshfeld表面分析