Tricarbonyltris propionitrile chromium

The yellow Cr(CO)3(EtCN)3 is much more deeply colored and air sensitive than the Mo and W analogs, turning green within seconds. However, it did 

This work was funded by the U.S. Department of Energy, Division of Chemical Sciences, Office of Basic Energy Sciences. 

Submitted by JONATHAN R. DILWORTH and RAYMOND L. RICHARDS Checked 1 GRACE J.-J. CHENt and JOHN W. McDONALDf 

A preparation of trans-[Mo(N2)2(dppe)2] (dppe=Ph2PCH2CH2PPh2) that uses triethylaluminum as reductant has already been reported in 

Inorganic Syntheses, but it is less convenient and gives much lower yields than that described below. Other reported methods, using sodium amalgam as reductant, involve a more difficult work-up procedure.  

---