https://doi.org/10.1351/goldbook.D01689
Compounds having the structure RN=N–NR2 (not all R = H, and one R commonly aryl). In systematic nomenclature, diazoamino prefixed to the name of RH names the compound RN=NNHR' (R = R'), e.g. PhN=N–NPhMe N-methyldiazoaminobenzene.
See also:
triazenes