84232-92-8Relevant academic research and scientific papers
Reactions of metal-metal triply bonded complexes [(η5-RC5H4)2M 2(CO)4] (M=Mo, W) with diphenyl ditelluride. Crystal structures of [(η5-MeC5H4)Mo2(CO) 4(μ-TePh)3] and [(η5-EtO2CC5H4)2W2(CO)4(μ-TePh)2]
Song, Li-Cheng,Shi, Yao-Cheng,Hu, Qing-Mei,Chen, Yu,Sun, Jie
, p. 192 - 198 (2007/10/03)
Reactions of triply bonded complexes [(η5-RC5H4)2M 2(CO)4] with Ph2Te2 in solution and solid state were investigated. While [(η5-RC5H4)2M 2(CO)4] (M=Mo, R=H, Me3Si, MeCO; M=W, R=MeCO, MeO2C, EtO2C) reacted with Ph2Te2 in toluene at reflux to give a series of doubly bridged complexes [(η5-RC5H4)2M 2(CO)4(μ-TePh)2] (1, M=Mo, R=H; 2, Mo, Me3Si; 3, Mo, MeCO; 4, W, MeCO; 5, W, MeO2C; 6, W, EtO2C), the reaction of [(η5-MeC5H4)2Mo 2(CO)4] with Ph2Te2 under the same conditions produced not only the corresponding doubly bridged complex [(η5-MeC5H4)2Mo 2(CO)4(μ-TePh)2] (7) but also the unexpected triply bridged complex [(η5-MeC5H4)Mo2(CO) 4(μ-TePh)3] (8). For these bridged dinuclear complexes structural characterization and conformational analysis were carried out, while the crystal structures of 6 and 8, representing the two types of the structures of complexes 1-8, were successfully determined by single crystal X-ray diffraction techniques.
SYNTHESIS AND SPECTROSCOPIC PROPERTIES OF SELENOLATO- AND TELLUROLATO-BRIDGED DIMOLYBDENUM(Mo=Mo) COMPLEXES 5-MeCp)Mo(CO)(μ-EPh)>2 (E = Se, Te)
Jaitner, Peter
, p. 333 - 336 (2007/10/02)
UV irradiation of the diphenylchalcogenides Ph2Se2 or Ph2Te2 in the presence of 5-MeCp)Mo(CO)3>2 induces rapid reaction to give the double μ-EPh bridged compounds 5-MeCp)Mo(CO)2(μ-EPh)>2.Subsequent decarbonylation by mild thermolysis in vacuo gives 5-MeCp)Mo(CO)(μ-SePh)>2 or 5-MeCp)Mo(CO)(μ-TePh)>2 in good yields.The new compounds were characterized by elemental analysis, infrared and mass spectra.The mixed Se/Te bridged complex 5-MeCp)Mo2(CO)4(μ-SePh)(μ-TePh)> was not obtained by UV irradiation of 5-MeCp)Mo(CO)3>2 in the presence of a mixture of Ph2Se2 and Ph2Te2.
