Five novel 1,2,4-triazole compounds containing N,N-dialkyldithiocarbamate moiety were designed and synthesized. Their structures were identified by means of elemental analysis, IR, ¹H NMR and MS spectra. The crystal structure of [α-(4-methoxyphenylcarbonyl)-2-(1,2,4-triazol-1-yl)]ethyl-N,N-dime- thyldithio-carbamate was determined by single-crystal X-ray diffraction analysis. It crystallizes in triclinic system with space group , a＝0.73482(15) nm, b＝1.1051(2) nm, c＝1.1209(2) nm, α＝90.32(3)°, β＝101.97(3)°, γ＝105.13(3)°, V＝0.8578(3) nm³, Z＝2, D_c＝1.357 g/cm³, F(000)＝368, µ＝0.324 mm^－1. The result of the biological test showed that the five compounds all have fungicidal and plant growth-regulating activities.

Key words: N,N-dialkyldithiocarbamate, crystal structure, biological ac-tivity, 1,2,4-triazole