1031801-24-7Relevant academic research and scientific papers
Nitrogen-ligated iron complexes: Photolytic approach to the FeN+ moiety
Buschhorn, Drew,Pink, Maren,Fan, Hongjun,Caulton, Kenneth G.
, p. 5129 - 5135 (2008)
The synthesis of (PNP)FeCl, (PNP)Fe[NH(xylyl)], and (PNP)FeN3 are reported(PNP = (tBu2PCH2SiMe 2)2N-). While the azide is thermally stable, it is photosensitive to lose N2 and form [(PNP=N)Fe]2,in which the nitride ligand has formed a double bond to one phosphorus, and this N bridges to a second iron to form a 2-fold symmetric dimer. The reaction energy to form the (undetected) monomeric [η3-tBu 2PCH2SiMe2NSiMe2CH2P tBu2=N]Fe is -15.9 kcal/mol, so this PIII → PV oxidation is favorable. The η2 version of this same species is less stable by 23.7 kcal/mol, which shows that the loss of one P→ Fe bond is caused by dimerization, and therefore, it does not precede and cause dimerization. A comparison is made to Ru analogs.
