二羰基亚硝基(三苯基胂)合钴

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| C=20 | H=15 | As=1 | Co=1 | N=1 | O=3
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| Density = 1.53 g·cm−3
| MeltingPt = 111~113 °C（分解）
: Co(NO)(CO)3 + AsPh3 → Co(NO)(CO)2(AsPh3) + CO
它和三丁基膦（PBu3）在甲苯中反应，可以得到CoNO(CO)2(PBu3)。
参考文献