the bivalent group –N=N– united with one hydrocarbon group and another atom or group, as in benzenediazo hydroxide, C6H5N=NOH, or the bivalent group =N=N united with one hydrocarbon group, as in diazomethane, CH2=N=N.
- Also called diazo radical.
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How to use diazo group in a sentence
When the para-position is occupied, the diazo group takes the ortho-position.