名称:
Synthesis and Characterization of Starlike Complexes Containing Three Terminal Butterfly Fe/S Cluster Cores Generated via Reactions of the Three-μ-CO-Containing Trianions {[(μ-CO)Fe2(CO)6]3[(μ-SCH2CH2)3N]}3- and {[(μ-CO)Fe2(CO)6]3[1,3,5-(μ-SCH2)3C6H3]}3- with Electrophiles
摘要:
The novel three-mu-CO-containing trianions {[(mu-CO)Fe-2(CO)(6)](3)[(mu-SCH2 CH2)(3)N]}(3-) (4A) and {[(mu-CO)Fe-2(CO)(6)](3)[1,3,5-(mu-SCH2)(3)C6H3]}(3-) (4B) were prepared by reaction of trithiol N(CH2CH2SH)(3) or 1,3,5-(HSCH2)(3)C6H3 with Fe-3(CO)(12) and Et3N in 1:3:3 molar ratio in THF at room temperature. Further in situ treatment of 4A with electrophiles Ph2PCl, PhSBr, PhC(Cl)=NPh, and CH2=CHCH2Br afforded starlike complexes [(mu-Y)Fe-2(CO)(6)](3)-[(mu-SCH2CH2)(3)N] (5-8: Y = Ph2P, PhS, PhC=NPh, CH2=CHCH2), whereas its reaction with CS2 followed by treatment with organic halides RX produced complexes [(mu-Y)Fe-2(CO)(6)](3)[(mu-SCH2CH2)(3)N] (9-11: Y = MeSC=S, PhCH2SC=S, CH2=CHCH2SC=S). Similarly, 413 reacted in situ with Ph2PCl, PhSBr, PhC(Cl)=NPh, CH2=CHCH2Br, and PhNCS to give starlike complexes [(mu-Y)Fe-2(CO)(6)](3)[1,3,5-(mu-SCH2)(3)C6H3] (12-16: Y = Ph2P, PhS, PhC=NPh, CH2=CHCH2, PhNHC=S), whereas its reaction with CS2 followed by treatment with RX yielded complexes [(mu-Y)Fe-2(CO)(6)](3)[1,3,5-(mu-SCH2)(3)C6H3] (17-19: Y = MeSC=S, PhCH2SC=S, CH2=CHCH2SC=S). All the starlike complexes 5-19 contain three terminal butterfly Fe/S cluster cores, which have been fully characterized by elemental analysis and spectroscopy, and particularly by X-ray diffraction techniques for 5, 12, 15, and 17.