63104-16-5Relevant academic research and scientific papers
Substituted Variants of the Cluster Type Fe3(CO)9(μ3-η2-RCN)
Suter, Pierre,Vahrenkamp, Heinrich
, p. 793 - 798 (2007/10/02)
Various aromatic nitriles were used for the preparation of the nitrile-capped clusters Fe3(CO)9(μ3-η2-RCN) (2) by reaction with Fe3(CO)12 under hydrogen.Electron-rich nitriles decrease, electron-poor nitriles increase the thermal stability of cluster 2.With CN-substituted pyridines only traces of cluster 2 could be obtained.CO replacement in Fe3(CO)9(PhCN) (2a) by isonitriles also causes a lowering of the stability.Conversely, more stable products were obtained by substitution reaction with trimethyl phosphite.On PPh3 and two dppm derivatives were also obtained.The structure of Fe3(CO)8-P(OMe)3(μ3-η2-PhCN (5a) was determined. - Keywords: Triiron clusters / Capping nitrile ligands / Phosphine substitutions / Structure determination
