氮烯（Nitrene）也译乃春、氮宾，是卡宾（碳烯）的氮类似物，通式R-N:。为活性中间体，参与多种化学反应。其中氮周围有6个电子，具亲电性。
研究了重氮烯氢向前手性烯烃单侧的非对映选择性转移。
Diastereoselective transfer of the diazene hydrogen to one face of the prochiral alkene was studied.
中离子碳烯类似于氮杂环碳烯。
烯效唑处理后，籽粒中的DNA、RNA含量增加，与籽粒中蛋白氮、成熟籽粒蛋白质含量提高表现一致。
After uniconazole treatments, the content of DNA and RNA was increased, protein nitrogen and protein in seeds were consistent with the content of DNA and RNA.
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